2026-04-06T19:06:20Z https://ejournal.undip.ac.id/index.php/index/oai

oai:ojs.ejournal.undip.ac.id:article/71678 2025-08-04T07:38:41Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Ritonga, Irwan Ramadhan https://orcid.org/0000-0002-5860-7222 Eryati, Ristiana Manukrante, Alvionita Muthy, Najla Adellia Department of Marine Science, Mulawarman University. Jl. Gunung Tabur No 1, Kampus Gunung Kelua, Samarinda. East Kalimantan Plankton merupakan salah satu produsen primer di perairan Manggar, Balikpapan. Plankton dapat digunakan sebagai salah satu indikator pencemaran perairan akibat aktifitas manusia, salah satunya mikroplastik. Namun, informasi tentang perbandingan antara kelimpahan plankton dan mikroplastik di perairan Balikpapan masih sangat terbatas. Tujuan dari penelitian ini adalah untuk mengkaji dan menganalisis jenis, perbandingan kelimpahan antara plankton dan mikroplastik di perairan Manggar, Balikpapan. Penelitian dilakukan pada bulan Oktober 2023 di perairan Manggar, kota Balikpapan. Penentuan lokasi sampling ditentukan dengan metode purposive sampling. Sampel air diambil menggunakan plankton net (mesh 20µm) dengan volume air sebanyak 50 L, di 4 titik sampling yang berbeda. Metode yang digunakan untuk mengidentifikasi plankton dan mikroplastik adalah metode inspeksi visual dengan menggunakan mikroskop. Hasil analisis menemukan bahwa komposisi jenis fitoplankton tertinggi adalah kelas Bacillariophyceae (20660 ind/L). Sedangkan komposisi jenis zooplankton tertinggi ditemukan dari kelas Oligotrichea (660 ind/L). Komposisi jenis mikroplastik yang ditemukan di perairan Manggar adalah fragmen 478 partikel (58%), disusul oleh fiber (272 partikel) (33%), dan film (73 partikel) (9%). Kelimpahan rerata total plankton adalah 936.000 ind/m3, sedangkan rerata total kelimpahan mikropastik adalah 344,3 partikel/m3. Perbandingan antara rasio kelimpahan plankton dan mikroplastik adalah 2718 : 1. Keberadaan plankton masih lebih melimpah  jika dibandingkan mikroplastik di perairan Manggar Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71678 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15286 2020-04-17T19:25:27Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc TINGKAT KESESUAIAN LINGKUNGAN PERAIRAN HABITAT TERIPANG (ECHINODERMATA : HOLOTHUROIDAE) DI KARIMUNJAWA (Environmental Suitability for Holothuroidea Habitat in Karimunjawa) Sulardiono, Bambang Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Purnomo, Pujiono Wahyu Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Haeruddin, Haeruddin Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kesesuaian; habitat; teripang   Ekosistem terumbu karang Karimunjawa menyediakan habitat yang baik bagi kehidupan dan perkembangbiakan teripang. Di sisi lain,  peningkatan beban limbah organik baik bersumber dari daratan maupun dari lingkungan perairan itu sendiri diduga menyebabkan daya dukung untuk kehidupan teripang menurun. Berdasarkan hal tersebut, bagaimana kondisi lingkungan perairan ditinjau dari kesesuaian lingkungan perairan habitat teripang. Pengukuran data kualitas air diambil pada 5 stasiun pengamatan. Data arus berdasarkan  data pasang surut terendah, yang diperoleh dari pengukuran data pasang surut  stasiun LPWP Jepara periode 2010-2011, pengukuran data variabel kedalaman perairan (m), suhu (°C), salinitas (‰), dan pH secara in situ, serta  pengukuran kandungan oksigen terlarut (mg/l)  secara laboratoris. Analisis data tingkat kesesuaian lingkungan  teripang didasarkan atas beberapa kriteria penting yang harus dipenuhi, yaitu kondisi lingkungan yang sesuai dengan standar kriteria kesesuaian, meliputi kisaran dibawah baku mutu dengan skor (1), kisaran toleransi dengan skor (2), dan kisaran optimal dengan skor 3. Selanjutnya dilakukan pembobotan setiap variabel dalam 3 kelas bobot yang diukur berdasarkan tingkat pengaruh masing-masing variable. Berdasarkan hasil perhitungan total  skor (Y) dari 6 variabel kualitas  perairan.diperoleh jumlah skor tertinggi  54 dan terendah 6, sedangkan berdasarkan nilai interval kelas kesesusian  (I) sebesar 16.  Hasil analisis skor per  kelas adalah (a) 39–54 = Sesuai (S1),  (b)  23–38 = Cukup Sesuai (S2), dan (c) 6–22 = Tidak Sesuai (N). Hasil analisis diperoleh informasi bahwa kondisi lingkungan perairan cukup sesuai bagi kehidupan teripang.     The Karimunjawa waters reef ecosystem provides a good habitat for the life and breeding of sea cucumbers. On the other hand, the increased burden of organic waste both from the mainland and from the water environment itself is thought to cause the carrying capacity for the life of sea cucumbers declined. Based on this, then how the condition of the aquatic environment in terms of the suitability of the marine environment habitat sea cucumbers.  Measurement of water quality data was taken at 5 observation stations. Current data based on the lowest tidal data, obtained from the measurement of the tidal data of LPWP station Jepara period 2010-2011. Measurement of water depth variable (m), temperature (°C), salinity (‰), and pH in situ, and dissolved oxygen content (mg/l) in laboratory. The data analysis of the suitability level of sea cucumber is based on several important criteria that must be fulfilled, that is environmental condition in accordance with standard of conformity criterion, covering range below standard quality with score (1), tolerance range with score (2), and optimal range with score 3, Then weighted each variable in 3 weight classes measured by the influence level of each variable, Based on the result of total score calculation (Y) from 6 water quality variables. Based on the result of total score (Y) of 6 water quality variables. Obtained by the highest score 54 and lowest 6, whereas based on the value of interval of suitability class (I) of 16. The result of the score analysis per class is (a) 39–54 = Suitable (S1), (b) 23–38 = quite suitable  (S2), and (c) 6–22 = Not Match (N). The result of the analysis obtained information that the condition of the aquatic environment is quite suitable for the life of sea cucumber.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15286 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22072 2020-04-17T19:30:35Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc POTENSI PADANG LAMUN SEBAGAI PENYERAP KARBON DI PERAIRAN PULAU KARIMUNJAWA, TAMAN NASIONAL KARIMUNJAWA (Ability of Seagrass Beds as Carbon Sink in The Waters of Karimunjawa Island, Karimunjawa National Park ) Ganefiani, Ajeng Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Latifah, Nurul Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Lamun; CO2; Penyeran Karbon; Gas Rumah Kaca; Karimunjawa Perubahan iklim disebabkan karena meningkatnya kandungan Gas Rumah Kaca seperti karbon dioksida (CO2), klorofluorokarbon (CFC), ozon (O3), dinitro oksida (N2O), metana (CH4), heksafluorida (SF6), hidrofluorokarbon (HFCS), perfluorokarbon (PFCS)). Diantara kedelapan gas tersebut, konsentrasi gas CO2 di atmosfer memiliki kontribusi terbesar yaitu lebih dari 55% dari total efek GRK yang ditimbulkan. Salah satu upaya pencegahan yang dapat dilakukan untuk menurunkan emisi GRK adalah dengan memanfaatkan lautan dan ekosistem pesisir sebagai penyerap CO2 alami (natural CO2 sink). Lamun merupakan tumbuhan laut yang berkontribusi terhadap penyerapan karbon melalui proses fotosintesis yang kemudian disimpan dalam bentuk biomassa pada bagian daun, rhizoma dan akar. Tujuan penelitian adalah untuk mengetahui jenis lamun, kerapatan dan tutupan lamun serta potensi penyerapan karbon dalam biomassa berupa jaringan atas substrat dan bawah substrat lamun yang dilakukan pada bulan Maret 2018 di Pulau Karimunjawa. Identifikasi jenis lamun dilakukan dengan melihat panduan buku seagrasswatch, kerapatan dan tutupan dilakukan dengan metode transek kuadran. Analisis kandungan karbon dilakukan dengan metode pengabuan. Hasil penelitian ditemukan 8 jenis lamun yaitu Enhalus acoroides, Cymodocea rotundata, Cymodocea serrulata, Thalassia hemprichii, Halophila minor, Halodule uninervis, Halophila ovalis dan Syringodium isoetifolium. Thalassia hemprichii dan Cymodocea rotundata memiliki nilai kerapatan tertinggi dengan kerapatan mencapai 450 ind/m2 dan 1204 ind/m2. Nilai biomassa dibagian bawah susbtrat berkisar 970,39 - 1.412.55 gbk/m2 yang lebih besar dibandingkan nilai biomassa lamun dibagian atas substrat berkisar 371, 88 - 546, 38 gbk/m2 diikuti nilai penyerapan karbon dibagian bawah substrat (akar dan rhizoma) berkisar antara 12,60 – 93,62 gC/m2, sementara kandungan karbon dibagian atas substrat (daun) berkisar antara 4,19 – 34,12 gC/m2. Total stok karbon di perairan Pulau Karimunjawa berkisar antara 1,28 ton karbon – 2,49 ton karbon atau sebesar 0,50 – 0,73 ton karbon/ha   Climate change is caused by increasing greenhouse gases content such as carbon dioxide (CO2), chlorofluorocarbon (CFC), ozone (O3), dinitro oxide (N2O), methane (CH4), hexafluoride (SF6), hydrofluorocarbons (HFCS), perfluorocarbons (PFCS) )). Among the eight gases, the concentration of CO2 gas in the atmosphere has the largest contribution, which is more than 55% of the total GHG effects generated. One of the preventive measures that can be taken to reduce GHG emissions is to use the oceans and coastal ecosystems as natural CO2 sinks. Seagrass is a marine plant that contributes to carbon sequestration through photosynthesis which is then stored in the form of biomass in the leaves, rhizomes and roots. This research aims to know the types of seagrass, seagrass cover and potential density of biomass carbon of above the substrate (leaves) and below the substrate seagrass (roots and rhizomes) in March 2018 at Karimunjawa Island. The identification of seagrass types used guidance book of seagrasswatch and the identification of seagrass cover and density was carried out using transect quadrant method. Analysis carbon content used ashing method. The result of the present study found 8 species of seagrasses that Enhalus acoroides, Cymodocea rotundata, Cymodocea serrulata, Thalassia hemprichii, Halophila minor, Halodule uninervis, Halodule ovalis and Syringodium isoetifolium. Thalassia hemprichii and Cymodocea rotundata have the highest density value reached 450 ind/m2 and 1,204 ind/m2. Value biomass below substrate ranged from 970.39 to 1.412.55 gbk/m2  which is greater than the value biomass above the substrate ranged from 371, 88 - 546, 38 gbk/m2 followed by the value of the carbon adsorption in below the substrate (roots and rhizomes) ranged from 12.60 to 93.63 gC/m2, whilst the carbon content above the substrate (leaves) ranged from 4.19 to 34.12 gC/m2. Total carbon stock in the waters of Karimunjawa Island ranged from 1.28 – 2.49 tons of carbon or of 0.50 to 0.73 tons of carbon/ha. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22072 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6825 2025-04-26T12:45:32Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc Leading Commodity Analysis of Capture Fisheries in Karimunjawa National Park Irnawati, Ririn Mahasiswa Program Doktor Mayor SPT Sekolah Pascasarjana IPB Bogor Simbolon, Domu Staf Pengajar Sekolah Pascasarjana IPB Bogor Wiryawan, Budy Staf Pengajar Sekolah Pascasarjana IPB Bogor Murdiyanto, Bambang Staf Pengajar Sekolah Pascasarjana IPB Bogor Nurani, Tri Wiji Staf Pengajar Sekolah Pascasarjana IPB Bogor Karimunjawa National Parks (TNKJ) is a marine conservation area which has 111.625 ha area with the majority of residents work as fishermen. Utilization of traditional fisheries zone intended for fishing activities. Therefore, fishing activities in TNKJ should be conducted in accordance with the principles of conservation. The aim of this study was to determine the winning fish fishery commodities in TNKJ. The selection of commodities was done by using comparative performance index (CPI). Analysis of potential fish resources is done with bioeconomic model. Optimizing the amount of fishing equipment was done by using linear goal programming (LGP). Feasibility of the business conducted by financial analysis. The results showed commodities TNKJ reef fisheries are pompano, and for pelagic fisheries are anchovies. Reef fish resource potential of 174 tons / year and pelagic fish of 22 069 tons / year. Appropriate fishing technologies for reef fisheries is the fishing rod elongation and traps, while for the pelagic fishery and gillnet fishing minnows on trolling lines. Financial analysis shows that all fishing gear is still viable to continue the effort.   Key words: Selection commodities, fishing activities, Karimunjawa National Parks Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6825 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21363 2018-12-28T15:51:03Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/76537 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Ardhanawinata, Adlina Program Studi Teknologi Hasil Perikanan, Jurusan Budidaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Mulawarman, Jalan Gn. Tabur, Kampus Gn. Kelua Samarinda 75123, Indonesia https://orcid.org/0009-0001-5584-875X Irawan, Irman Minuman jeli merupakan produk pangan semi-padat yang digemari berbagai kalangan karena teksturnya yang kenyal dan rasanya yang menyegarkan. Namun minuman jeli yang beredar di pasaran umumnya diformulasi menggunakan karagenan sebagai agen pembentuk gel, serta mengandung pemanis, pewarna, dan perisa sintetis. Produk tersebut cenderung memiliki nilai gizi yang rendah, oleh karena itu diperlukan inovasi untuk meningkatkan kualitasnya dengan memanfaatkan Kappaphycus alvarezii sebagai sumber serat dan nira aren sebagai pemanis alami. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan K. alvarezii terhadap sifat fisikokimia pada minuman jeli nira aren. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan yaitu, P1 (2%), P2 (4%) dan P3 (6%) dan P4 (8%) dengan tiga kali ulangan. Data dianalisis dengan analisis sidik ragam dengan uji lanjut BNT pada taraf kepercayaan 95%.  Analisis yang dilakukan pada penelitian ini adalah kadar gula sukrosa, pH, serat kasar, viskositas, warna, dan total padatan terlarut. Hasil penelitian menunjukkan bahwa penambahan K. alvarezii dengan konsentrasi berbeda pada minuman jeli nira aren memberikan pengaruh secara signifikan pada taraf (p<0,05) terhadap parameter kadar gula sukrosa (2,32-5,51%), pH (7,78-7,98), kadar serat kasar (0,34-0,84%), viskositas (82,00-498,51 cP), derajat putih (19,93-21,84%) dan total padatan terlarut (16,10-19,78 oBrix). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/76537 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16826 2020-04-17T19:27:22Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc PENGGUNAAN RESERVOIR TERHADAP PERFORMA UDANG WINDU (Penaeus monodon Fabricius) YANG DIBUDIDAYAKAN SECARA TRADISIONAL (The Use of Reservoirs to the Performance Tiger Shrimp (Penaeus monodon Fabricius) on Culture Traditional Pond) Susilowati, Titik Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Yuniarti, Tristiana Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Basuki, Fajar Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro produksi biomass; udang windu; kelimpahan fitoplankton; tambak tradisional   Penelitian ini bertujuan untuk mengetahui produksi biomassa,  kelulushidupan udang windu (Penaeus monodon Fabricius) dan kelimpahan fitoplankton yang dibudidayakan di tambak tradisional dengan reservoir dan tanpa reservoir. Penelitian dilakukan dengan menggunakan metode deskriptif   Padat tebar udang windu 2 ekor/m2.  Pemeliharaan dilakukan selama 3 bulan (ukuran konsumsi). Data produksi udang dan kelimpahan plankton dianalisis dengan Uji-T dan data kualitas air yang diperoleh dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa produksi udang windu pada tambak dengan menggunakan reservoir dan tanpa reservoir berbeda nyata  (p<0.050) dengan nilai 48.8 ± 25.90 kg pada tambak dengan menggunakan reservoir dan 9 ± 7.31 kg pada tambak tanpa reservoir. Sedangkan kelimpahan fitoplankton tidak menunjukkan perbedaan nyata (p > 0.05) dengan nilai 16.37 ± 4.24 sel / L untuk tambak reservoir dan 15.73 ± 2.20 sel / L  untuk tambak tanpa reservoir. Kualitas air media tambak dengan reservoir yaitu  suhu: 26.8 – 31.0oC. DO : 1.25-8.86 mg/L., pH air : 7.5-9.2., kecerahan : 25-47.5 cm., kedalaman air : 75-95 cm dan nilai salinitas 5-21 ppt. Sedangkan tambak tanpa reservoir suhu: 24.7-32.4oC., DO : 1.25-8.46 mg/L. pH air : 8.0-9.1. kecerahan : 25.5-40 cm., kedalaman air : 70-90., salinitas: 9-18 ppt. Berdasarkan hasil penelitian dapat disimpulkan bahwa penggunaan reservoir pada budidaya udang windu tradisional dapat meningkatkan produksi udang monodon (P. monodon Fabricius)     The aim of the research is determining the biomass production of tiger shrimp (P. monodon .F) and abundance of phytoplankton which is maintained in a traditional pond with water reservoir and without using water reservoir. The method that is used in this deskriptif  Two treatment. namely traditional pond with water reservoir and without using water reservoir. Rearing the shrimp was done until 3 mount. Data biomass production shrimp were  analysed with T-test and data water quality were analyzed descriptively. The result shows that the pond cultivation using water reservoir and without water reservoir significant effect ( p < 0.05) on the biomass production of tiger shrimp to the ponds by using a reservoir with a mean 49.8 ± 23.90 kg and 9 ± 6.31 for pons without a reservoir. While the pond using water reservoir and without reservoir have not significant effect ( p > 0.05) on the phytoplankton abundance of 16.37 ± 4.24 cell / L for the pond by using a reservoir and 15.73 ± 2.20 cell / L for the pond without a reservoir. Water quality for temperature: 26.8 – 31.0oC., DO : 1.25-8.86 mg/L., pH : 7.5-9.2., brightness : 25-47.5 cm., depth : 75-95 cm and  salinity 5-21 ppt for ponds by using a reservoir and temperate 24.7 – 31.0oC., DO : 1.25-8.46 mg/L., pH : 8.0-9.1., brightness : 25.5-40 cm., depth : 70-95 cm and  salinity 9-18 ppt without reservoir.  From the data conclude that traditional pond with water reservoir can improve the biomass production of tiger shrimp to the pond.     Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16826 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22638 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc ANALISIS LAJU SEDIMENTASI PADA MANGROVE JENIS Rhizophora sp. DAN Avicennia sp. DI PERAIRAN BEDONO, DEMAK(Sedimentation Rate Analysis of Mangrove Rhizophora sp. and Avicennia sp. at Bedono, Demak) Kharimah, Nur Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Muskananfola, Max Rudolf Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jati, Oktavianto Eko Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Rhizophora sp; Avicennia sp; Laju Sedimentasi; Tekstur Sedimen Kawasan pesisir merupakan daerah yang rawan terkena erosi. Mangrove menjadi ekosistem pesisir yang berpengaruh terhadap laju sedimentasi. Keberadaan hutan mangrove dapat membantu menangani erosi di wilayah pesisir. Adanya bentuk perakaran mangrove yang bervariasi dapat memberikan pengaruh yang berbeda terhadap laju sedimentasi. Penelitian ini bertujuan untuk mengetahui perbandingan laju sedimentasi antara mangrove jenis Rhizophora sp. dengan  Avicennia sp.,  serta untuk mengetahui pengaruh perbedaan bentuk akar mangrove terhadap laju sedimentasi. Penelitian dilakukan pada tanggal 7 April – 30 Juli 2018 di kawasan Hutan Mangrove Bedono, Demak. Kegiatan penelitian meliputi penentuan lokasi sampling melalui metode survei, pengukuran laju sedimentasi menggunakan sediment trap , pengukuran parameter fisika kimia dan analisis tekstur sedimen. Lokasi terdiri dari tiga stasiun, masing – masing stasiun terdapat enam titik. Tiga sediment trap diletakkan pada mangrove jenis Rhizophora sp. dan tiga lainnya pada mangrove jenis Avicennia sp. sehingga terdapat delapan belas titik. Laju sedimentasi Rhizophora sp. sebesar 13,01 mg//hari lebih rendah  dari pada Avicennia sp. yaitu sebesar 16,78 mg/cm²/hari. Jenis substrat yang diperoleh berupa liat. Hasil uji ANOVA menunjukkan bahwa nilai p value = 0,015 . Kesimpulan yang diperoleh adalah bentuk akar tidak mempengaruhi jenis sedimen yang ditangkap dan jumlah hasil tangkapan sedimen   Coastal areas were disturbed by abration. Mangrove influence the sedimentation rate and prevent abration coastal. The varied forms of mangrove root caused different effects with the sedimentation rate. The purpose of this research were to find out ratio and effect of the mangrove root differences of Rhizophora sp. and Avicennia sp. to sedimentation rate. The study was conducted in April 7th - July 30th, 2018 in Bedono. The methods of the research were sampling, measuring the sedimentation rate sediment trap, measuring  temperature, pH, salinity, and current velocity, and analyzing sediment texture. There were 3 stations with its station had 6 points. Three sediment traps were placed on Rhizophora sp. and the others 3 are in the Avicennia sp. Sedimentation rate of Rhizophora sp. amounting to 13,01 mg /  / day lower than Avicennia sp. that is equal to 16,78 mg / / day. ANOVA test showed that p value = 0,015. The type of substrate obtained is clay. The conclusion said that root shape does not affect the type of sediment obtained and amount of sediment catched. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22638 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6846 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Analysis of Ex Disposal Area Land Use For Agriculture Activity and Mangrove Ecosystem in Segara Anakan Regency Based on Geography Information System A’in, Churun Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Subiyanto, Subiyanto Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Hartoko, Agus Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro The aim of research was  to study potential land location and width of EDA as agriculture activity and mangrove ecosystem, based on land suitability. The research methode was descriptive case study and sampling method used was purposive sampling, including 2 sampling periods (rainy and dry season). The location in this research was Ex Disposal Area (EDA), consist of Klaces, Panikel and Ujunggagak district were involved. Research variabel are soil quality (land quality), water quality and EDA’s environment parameters. Analysis data using GIS, proccess by ER Mapper 7,0 and ArcGIS 9,3 software. The concept of suitability level by scoring method combining values and weight variable. Result of esearch showed that potential land for fisheries activity (pond land)  are: moderately suitable class (S2) is 5,309.05 m2, include Panikel and Ujunggagak district; marginally suitable class (S3) is 77,325.77 m2, not suitable for present time class (N1) is 1,365,955.67 m2, and permanently unsuitable class (N2) is 7,583,809.51 m2. S3, N1,N2 class were found in Panikel, Klaces and Ujunggagak district. Potential land for agriculture activity (rice field)  are : moderately class (S2) is 2,051,725.30 m2; marginally suitable class (S3) is 54,083.03 m2, width of not suitable for present time class (N1) is 2,416,591.48 m2, and permanently unsuitable (N2) is 4,510,000.20 m2. Fourth classes of  potential land for agriculture activity (farming land) exist in Panikel, Klaces and Ujunggagak district. Potential land for mangrove ecosystem are : marginally suitable class (S3) is 401.64 m2, found in Ujunggagak district ; not suitable for present time class (N1) is 1,046.59 m2, include Panikel dan Ujunggagak district, and permanently unsuitable class (N2) is 9.030.951,77 m2. This class are found in Panikel, Klaces and Ujunggagak district. Key Words : Land Use,  EDA, GIS. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6846 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/28471 2021-07-08T21:24:12Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/78667 2026-02-05T07:11:14Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Azizah, Shania Nur Diachanty, Seftylia https://sinta.kemdiktisaintek.go.id/authors/profile/6757901 Sari, Ratna Nurmalita https://sinta.kemdiktisaintek.go.id/authors/profile/6795778 Nurfaidah, Nurfaidah https://sinta.kemdiktisaintek.go.id/authors/profile/6833458 Hasanah, Rafitah https://sinta.kemdiktisaintek.go.id/authors/profile/6746780 Ikan lele dumbo (Clarias gariepinus) merupakan jenis ikan bernilai ekonomis yang disukai masyarakat Indonesia dan memiliki kandungan protein tinggi (17,7%). Tingginya kandungan protein pada ikan lele dumbo menjadikannya bahan baku yang tepat untuk digunakan sebagai bahan baku gisuke-ni. Gisuke-ni merupakan salah satu produk ikan asin kering berbumbu tradisional Jepang dan merupakan produk lanjutan niboshi. Penelitian ini bertujuan untuk menentukan pengaruh formula bumbu terhadap mutu kimia, sensori dan penerimaan konsumen pada gisuke-ni. Penelitian dilakukan dengan tahapan pembuatan nibhosi, dan dilanjutkan dengan pembuatan gisuke-ni. Rancangan yang digunakan adalah rancangan acak lengkap (RAL) dengan perlakuan formulasi bumbu berbeda yaitu G1 (asin), G2 (manis), dan G3 (pedas). Parameter analisis terdiri atas proksimat, sensori, hedonik, dan angka lempeng total (ALT). Hasil analisis proksimat nibhosi terdiri atas kadar air 17,90%, abu 3,21%, protein 18,41%, lemak 4,72%, dan karbohidrat 55,76%. Gisuke-ni G1 (asin) kadar air 5,66%, abu 4,37%, protein 56,60%, lemak 6,23%, dan karbohidrat 27,24%. Gisuke-ni G2 (manis) kadar air 8,13%, abu 4,30%, protein 65%, lemak 7,82%, dan karbohidrat 14,74%. Adapun gisuke-ni G3 (pedas) mengandung kadar air 9,21%, abu 2,41%, protein 74,23%, lemak 8,26%, dan karbohidrat 5,89%. Gisuke-ni perlakuan G3 (pedas) memiliki nilai hedonik tertinggi dengan nilai 8, dengan kriteria sangat disukai konsumen. Gisuke-ni perlakuan G3 (pedas) memiliki nilai sensori tertinggi dengan nilai 8. Nilai angka lempeng total nibhosi berturut-turut 2,8⨯104, G1 (asin) 2,5⨯104, G2 (manis) 2,7⨯104, G3 (pedas) 2,6⨯104. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/78667 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/26137 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200407 2020 eng " 2549-0885 1858-4748 dc Chilmawati, Diana Departemen Akuakultur FPIK UNDIP Hutabarat, Johannes Anggoro, Sutrisno Suminto, Suminto Kondisi optimum media kultur dan diet pakan yang sesuai dengan kebutuhan hidup (ekofisiologis) Oithona similis sangat penting agar dapat tumbuh dan berkembang secara maksimum. Proses bioenergetika dalam upaya pemanfaatan energi pakan untuk pertumbuhan, erat hubungannya dengan proses osmoregulasi organisme air yang dipengaruhi oleh salinitas media kulturnya. Tujuan penelitian ini adalah mengkaji pengaruh perbedaan diet fitoplankton dan menentukan jenis fitoplankton yang tepat yang memberikan performa  pertumbuhan dan produksi telur O. similis terbaik pada kondisi salinitas media kultur yang optimum (19,4 permil). Penelitian ini menggunakan metode eksperimental dengan  Rancangan Acak Lengkap yang terdiri dari 4 perlakuan dengan masing-masing 5 kali ulangan, yaitu: kultur O. Similis dengan diet fitoplankton A. Chlorella vulgaris; B. Nannochloropsis oculata; C. Isochrysis galbana; dan D. Chaetoceros calcitrans. Hasil penelitian menunjukkan bahwa perbedaan diet mikroalga berpengaruh terhadap pertumbuhan dan produksi telur O. similis pada kondisi salinitas media kultur optimum. Pemberian sel diatom Chaetoceros calcitrans memberikan kepadatan total (16,88±0,32 ind./ml), laju pertumbuhan populasi (0,141±0,001/hari) dan produksi telur (24,50±0,58 telur/ind.) O. similis terbaik. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/26137 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN ind Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8101 2020-01-10T10:16:03Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc EFEK PERBEDAAN LUAS FREE SURFACE MUATAN CAIR TERHADAP GERAKAN ROLLING MODEL KAPAL (Influence of free surface area of liquid cargo towards rolling motion of a ship model) Novita, Yopi Departemen PSP FPIK IPB Ramadhan, Ariestio Dwi Departemen PSP FPIK IPB Imron, Mohammad Departemen PSP FPIK IPB Kapal pengangkut ikan hidup adalah merupakan kapal pengangkut yang khusus digunakan untuk mengangkut ikan-ikan dalam kondisi hidup. Oleh karena itu, muatan utamanya adalah air dan ikan. Ditinjau dari jenis muatannya, maka muatan kapal pengangkut ikan hidup dikategorikan sebagai jenis muatan (cair) liquid. Sifat muatan cair adalah akan selalu berubah bentuk mengikuti bentuk wadah yang ditempatinya, sehingga titik berat muatan cair akan selalu bergeser. Kondisi ini dikarenakan muatan cair memiliki permukaan bebas (free surface). Free surface memiliki efek yang dapat mempengaruhi stabilitas kapal pengangkut muatan cair. Pergeseran titik berat muatan itulah yang menyebabkan kapal bermuatan cair menjadi berkurang kestabilannya jika dibandingkan dengan kapal yang bermuatan padat. Oleh karena itu perlu upaya untuk mengurangi efek free surface terhadap stabilitas kapal.  Tujuan dari penelitian ini adalah untuk mengetahui pengaruh luasan free surface terhadap kualitas gerakan rolling model kapal. Metode penelitian dilakukan dengan cara mengamati gerakan rolling model kapal sebagai efek dari keberadaan palka dengan beberapa perlakuan berbeda dan pergerakan free surface-nya. Dari hasil penelitian disimpulkan bahwa nilai rata-rata rolling period model kapal dengan luas free surface yang berbeda adalah berbeda.  Rolling period terbesar dihasilkan oleh model palka yang memiliki free surface terluas. Kata kunci : free surface, stabilitas, rolling period Life fish carrier is one kind of ship that designed for transporting life fish.  This kind of ship bring most water in its hold tank beside life fishes, so that the cargo can be categorized as liquid cargo. As it is known that shape of liquid cargo is always folllow the shape of the container where it is laden, consequently the centre of gravity (CG) is always shifted due to free surface effect.  The shifted of CG may decrease stability, so it is needed some effort to ovecome the free surface effect in this kind of ship. The objective of this research was to know the influence of free surface area towards quality of rolling motion of  ship models.  The research was carried out in a laboratory and direct observation to roling motion of  some ship models were observed with variation of treatments. The result showed that average of rolling period was influenced by area of free surface, the higher rolling period was produced by the ship  model with widest free surface area. Key words : Free surface, stability, rolling period Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8101 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2715 2014-04-25T17:01:16Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc The Use of Phytase Enzyme to Increase Phosphorus Bioavailability of the Diets and Growth Performance of Catfish (Clarias sp) Amin, Mohammad Program Studi Budidaya Perairan Fakultas Pertanian Universitas Sriwijaya Jl Palembang –Prabumulih KM 32 Ogan Ilir Sumsel, Telp (0711) 580934 , Fax : (0711) 580276 Jusadi, Dedi Departemen Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan IPB, Dermaga Bogor. Mokoginta, Ing Departemen Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan IPB, Dermaga Bogor. ABSTRACT This study was conducted to evaluate the effect of dietary phytase supplementation on phosphorus (P) bioavailability of the diets and growth performance of catfish (Clarias sp) as well as P loading. Four experimental diets were used in this experiment. Diet (A), as a control, was supplemented with inorganic P; diet (B) supplemented with phytase, without inorganic P; diet (C ) supplemented with phytase and citric acid, without inorganic P; and diet (D) without phytase and inorganic P. Phytase was added to the diet at 50 mg/100 g soy bean meal and pollard. Ten fishes with initial body weight of 6.3 ± 0.05 g distributed into an aquarium. Fish fed on the diets for 60 days, there time daily, at satiation. Results indicated that P digestibility increased from 68.55% to 86.1% by the addition of phytase. P digestibility in diet B and C was higher than diet A and D. Daily growth rate of fish from diet B and C were significantly higher than that of diet D, but similar with diet A. Food conversion ratio (FCR) of fish from diet A, B, and C was better than diet D. P concentration in the whole body, bone, and plasma, of fish from diet A,B, and C was higher than diet D, but the Ca and Zn concentration  in the whole body, bone, plasma was the same in all treatments. P loading by fish fed diet with phytase ware 58% lower than that of the fish fed control diet. Keyword: Clarias sp, phytase, phosphorus, bioavailability Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2715 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/50810 2023-02-10T03:38:44Z saintek:RSA

nmb a2200000Iu 4500 "221029 2022 eng " 2549-0885 1858-4748 dc ECONOMIC PERFORMANCE OF MANGROVE CRAB FISHERY BUSINESS IN MOJO MANGROVE ECOSYSTEM AREA, PEMALANG REGENCY, CENTRAL JAVA, INDONESIA Hapsari, Trisnani D Department of Capture Fisheries, Faculty of Fisheries and Marine Science, Diponegoro University Bambang, Azis N Department of Capture Fisheries, Faculty of Fisheries and Marine Science, Diponegoro University Ghofar, Abdul Department of Aquatic Resource Management, Faculty of Fisheries and Marine Science, Diponegoro University Fitri, Aristi D. P. Department of Capture Fisheries, Faculty of Fisheries and Marine Science, Diponegoro University Adrianto, Luky Department of Aquatic Resource Management, Faculty of Fisheries and Marine Science, IPB University mud crab; feasibility; essential ecosystem area The mangrove ecosystem in the Mojo Village Coastal Area, Pemalang Regency, Central Java Province is one of the potential sources of mangrove crabs. The high market demand has led to overexploitation as indicated by a decrease in catch and a decrease in the average size caught. The fishing of mangrove crabs in the Mojo Mangrove Ecosystem, Pemalang Regency can be caught any time, depending on the type of fishing gear used. The fishing gear used includes scoop nets, folding traps (local term: bubu), fishing rods, and trammel nets. The reduction in the production of ma0ngrove crabs and the decrease in the average size caught can lead to a decline in fishermen’s income. This study aims to examine the economic performance of the mangrove crab fishery business in the Mojo Coastal Area and assess the feasibility of the business. The research method used was a survey method. Data analysis included profit analysis, revenue cost ratio (R/C ratio), Return of Investment (ROI) and Payback period (PP). The results show that the mangrove crab business both catching and farming are known to be still profitable to do. Folding traps (bubu) fishermen who operate the fishing gears at sea earned the highest net income, i.e. an average of IDR 5,127,451/month. The highest value of R/C ratio was in catching mangrove crabs using fishing rods, which was 3.9. The highest ROI value (11,294%) and the fastest return are found in investment on crab fishing activities using a scoop net, with a payback period of 3 days. Soft shell crab farming is economically feasible to be continued with an average profit of IDR 8,150,125/month, R/C value of 1.22, Payback Period was 2 years 2 months and 242% ROI. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-11-24 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/50810 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 3 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/25131 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200822 2020 eng " 2549-0885 1858-4748 dc POTENSI OLIGOCHITOSAN SEBAGAI EDIBLE COATING PADA ANGGUR LAUT (Caulerpa lentillifera) (The Potential of Oligochitosan as an Edible Coating of Sea Grape (Caulerpa lentillifera)) Yudasmara, Gede Ari Universitas Pendidikan Ganesha Caulerpa lentillifera; edible coating; oligochitosan; pasca panen. Caulerpa lentillifera merupakan edible seaweed yang memiliki nilai ekonomi tinggi dan banyak dikonsumsi dalam bentuk segar maupun bentuk olahan. Namun, Caulerpa lentillifera sangat mudah rusak dan memiliki umur simpan yang singkat pada proses pasca panen. Agar penurunan mutu dan masa jualnya dapat diperpanjang, maka diperlukan upaya untuk dapat menghambat kerusakannya. Pemberian lapisan tipis oligochitosan pada bagian permukaan Caulerpa lentillifera, merupakan salah satu upaya yang dapat diterapkan, mengingat oligochitosan adalah turunan dari chitosan yang sudah dikenal luas sebagai  pengawet alami. Penelitian ini bertujuan untuk mengetahui pengaruh pelapisan oligochitosan dengan konsentrasi yang berbeda terhadap daya simpan Caulerpa lentillifera pasca panen. Bahan oligochitosan yang digunakan berupa cairan yang kemudian dilarutkan pada air laut steril untuk setiap konsentrasi perlakuan. Penelitian ini menggunakan metode eksperimental dengan 4 perlakuan yaitu P1 (pencelupan oligochitosan 0,25%), P2 (oligochitosan 0,5%), P3 (oligochitosan 0,75%) dan P0 tanpa pencelupan (kontrol) dengan menggunakan 100-gram Caulerpa lentillifera pada setiap ulangannya sebanyak 3 kali masing-masing selama 7 detik, kemudian ditiriskan dan disimpan ke dalam wadah plastik transparan tertutup pada ruangan bersuhu 20-25oC. Parameter yang diamati adalah warna, tekstur, aroma dan bobot setelah perlakuan yang dianalisis melalui uji organoleptik dan penimbangan bobot setiap hari selama 7 hari. Hasil penelitian menunjukkan bahwa aplikasi pelapisan oligochitosan secara positif dapat memperpanjang masa simpan dan mampu mempertahankan mutu Caulerpa lentillifera saat pasca panen, selama P0 (3 hari); P1 (4 hari); P2 (5 hari); dan P3 (3 hari). Kadar oligochitosan 0,5% (P2) merupakan kadar yang optimal dalam memperpanjang daya simpan dan mampu mempertahankan karakteristik fisik Caulerpa lentillifera selama 5 hari penyimpanan.   Caulerpa lentillifera is edible seaweed with a high economic value which is consumed in a great number both as fresh and processed food. However, it spoils easily and has a very short storage life time in the post-harvest process. In order to stop the degradation of its quality and to prolong its sale time, then there is a need to stop its spoilage. Coating the surface part of Caulerpa lentillifera with a thin oligochitosan layer is one of the efforts that can be used, considering oligochitosan is a chitosan derivative which is widely known as a natural preservative. This study aimed at finding out the effect of the use of oligochitosan covering with different concentrations on the storage lifetime of post-harvest Caulerpa lentillifera. This study used oligochitosan liquid which was dissolved in sterile water in each treatment concentration. This study used an experimental method using 4 (four) treatments: P1 (coating with 0.25% oligochitosan, P2 (coating with 0.5% oligochitosan), P3 (coating with 0.75% oligochitosan) and P0 without coating (control) by using 100 gram of Caulerpa lentillifera at each repetition for 7 seconds and then the Caulerpa lentillifera was drained and stored in a closed transparant plastic container at the room temperature of 20-25 oC. The parameters that were observed were color, texture, aroma, and weight after treatments which were analyzed through the organoleptic test and the weights were measured every day for 7 days. The result showed that the application of the oligochitosan coating positively lengthens the storage lifetime and is able to maintain the quality of the post-harvest Caulerpa lentillifera, with PO (for 3 days); P1 (for 4 days); P2 (for  5 days); and P3 (for 3 days). The 0.5% (P2) Oligochitosan content is the optimal content in lengthening the storage lifetime and is able to maintain the physical characteristics of Caulerpa lentillifera for 5 days storage   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/25131 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8118 2015-06-29T15:44:04Z saintek:RSA

nmb a2200000Iu 4500 "140825 2014 eng " 2549-0885 1858-4748 dc MUTU KECAP IKAN YANG TERBUAT DARI ISI PERUT IKAN MANYUNG (Arius thalassinus) DENGAN KONSENTRASI GARAM YANG BERBEDA (Quality Of Fish Sauce That Made From Viscera Of Marine Catfish (Arius thalassinus) With Different Salt Concentrations) Widyastuti, Puji Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Semarang Riyadi, Putut Har Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Semarang Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Semarang Kecap ikan merupakan produk fermentasi ikan yang dibuat dari ikan maupun limbah ikan dan garam. Pengolahan kecap ikan  membutuhkan waktu yang lama dan rasa produknya sangat asin. Rasa sangat asin pada kecap ikan dapat dikurangi dengan mengurangi konsentrasi garam. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan konsentrasi garam (NaCl) terhadap sifat fisikawi, kimiawi, dan nilai hedonik serta mengetahui konsentrasi garam terbaik pada proses pengolahan kecap ikan dari isi rongga perut ikan Manyung. Hasil penelitian menunjukkan bahwa perlakuan perbedaan konsentrasi garam menyebabkan kadar garam, pH, rendemen, warna dan nilai hedonik produk berbeda nyata (P<0.05) diantara perlakuan. Semakin tinggi penambahan konsentrasi garam makin tinggi kadar garam rendemen, nilai hedonik, tetapi makin rendah nilai pH. Penambahan konsentrasi garam terbaik pada pengolahan kecap ikan dari isi rongga perut ikan Manyung yaitu 25% dengan kriteria kadar garam produk (28.14%), pH (5.36), rendemen (48.54%), warna kuning kecoklatan dan disukai panelis dengan nilai hedonic (6.80 ≤µ≤ 6.88). Kadar garam dan nilai pH produk memenuhi persyaratan kecap ikan berdasarkan SNI dan Thai Standard Industrial Institute. Kata kunci : Kecap Ikan, Isi Rongga Perut Ikan Manyung, Konsentrasi Garam, Mutu   Fish sauce is a  fish fermentation product made from fish or fish waste and salt. Processing of fish sauce generally takes a long time and the product is very salty. The salty taste of fish sauce can be reduced by  reducing the concentration of salt used. The study was aimed to determine the effect of different salt concentrations (NaCl) to the physical and chemical characteristics, hedonic value of the product and to determine the best salt concentration in processing of fish sauce made from marine Catfish’s viscera. The results showed that different salt concentrations caused salt content, pH, yield, colour and hedonic value of the products using significant different in (P<0.05). The higher the adding of salt concentration, the higher the salt content, yield, hedonic value, but the pH value was lower. The best salt concentration used in fish sauce processing made of marine Catfish viscera was 25%. The product had salt conctent (28.14%), pH (5.36), yield (48.54%), browny-yellow in colour and the hedonic value was (6.80≤µ≤6.88). The salt concentration and pH value of the product comply with the SNI and Thai Standard Industrial Institute for fish sauce. Key words : Fish Sauce, Viscera of Marine Catfish, Salt Concentration, Quality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 13:33:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8118 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 2 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2061 2020-12-07T08:06:42Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Some Efforts to Improve Business Performance Improvement Through Fishery Business Environment in Cantrang (Boat Seine) and Local Government Policies in The District Rembang Kusumawati, Peny Program Studi Pemanfaatan Sumberdaya Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. H. Soedarto, SH Tembalang Fishing effort is one of economic activities so that in running its activities are always based on economic considerations for businesses that run to generate profits. Fishing effort has not been able to contribution a larger potion to develop Central Java economy. This is because the factors that affect fishing effort. Therefore, the government should take steps to of improve economic development, especially in the field of fisheries. The purpose of this study is to determine the environmental impact of fishing effort to the performance of fisheries, fishery business environment, and government policies on the performance of the fishery business in district Rembang. The research was conducted in Rembang in April - May 2008. The method used is descriptive by counducting survey. Primary sources of data the fishermen community. The method to determine the respondents by using purposive sampling method. Collected data were analyzed using descriptive statistics, the presentation of data displayed in a frequency distribution table. To test the hypothesis proposed in this research by using, data analysis technique SEM (Structural Equation Modelling) which is operated using the program AMOS 6. The results of research shows the significance level of 5% positive effect on the business environment business performance with the calculated value of t (4.468)> | 1.96 |. By lookong at, the business environment variables fisheries, fishery performance cantrang can increase the business environment has positive influence on local government policy variables with t-count value (7.017)> | 1.96 |. Government policy is able to increase fishing effort. Capital with low interest rates is able to help fishermen catch fish in running the business. Local government policy has positive influence on business performance variables in thecapture fisheries with t-count (2.311)> | 1.96 |. Capital with low interest rates can increase the performance of the fishery business in the distric of Rembang. In conclusion the fishermen to obtain capital to improve fishing business.   Key Wards : Business Environment, Performance, Government Policies Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2061 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/54718 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230427 2023 eng " 2549-0885 1858-4748 dc Fahmi, A Suhaeli Department of Fisheries Product Technology, Faculty of Fisheries and Marine Science, Universitas Diponegoro https://orcid.org/0000-0002-9961-3004 Susanto, Eko Sumardianto, Sumardianto Ikan teri nasi asin selain menjadi bagian dari lauk dalam makanan utama juga dapat menjadi makanan ringan siap makan dalam bentuk ikan teri nasi asin goreng. Penelitian ini bertujuan untuk menentukan karakteristik produk ikan teri nasi asin goreng yang sebelum proses penggorengan melalui perlakuan perendaman dalam air panas. Penelitian ini dilaksanakan dengan dua perlakuan percobaan yaitu perlakuan perendaman dalam air panas dan perlakuan tanpa perendaman dalam air panas. Ikan teri nasi asin yang digunakan adalah ikan teri nasi asin setengah kering yang dibeli di pasar. Perendaman dalam air panas dilakukan selama 3 menit kemudian ikan teri nasi ditiriskan dan digoreng dengan minyak goreng kelapa sawit. Hasil penelitian menunjukkan bahwa perlakuan perendaman dalam air panas menghasilkan karakteristik produk yang berbeda. Secara sensori panelis lebih menyukai produk ikan teri nasi asin goreng yang diberi perlakuan perendaman dalam air panas karena rasa produk yang tidak terlalu asin. Hasil tersebut juga didukung hasil uji kadar garam yang menunjukkan bahwa kadar garam ikan teri nasi goreng dengan perlakuan perendaman adalah 10,33% sementara ikan teri nasi tanpa perlakuan perendaman 22,71%. Sejalan dengan hasil uji kadar garam, uji kadar abu juga menunjukkan bahwa kadar abu ikan teri nasi asin goreng dengan perlakuan perendaman lebih rendah yaitu 14,56%, sedangkan tanpa perlakuan perendaman kadar abu ikan teri asin goreng adalah 28,98%. Kadar air, kadar protein, kadar lemak, dan nilai Aw ikan teri nasi asin goreng dengan perlakuan perendaman yaitu 2,42%, 36,70%, 41,84%, dan 0,54, sementara ikan teri nasi asin goreng tanpa perlakuan perendaman yaitu 2,08%, 27,13%, 40,88%, dan 0,50.   Dried salted anchovy ussually served as a part of main meal or as ready-to-eat snack in the form of fried salted anchovy. This study aims to determine the effects of soaking in hot water before the frying to the characteristics of fried anchovy. This experimental research was carried out with two experimental treatments, namely soaking3 minutes in hot water and without soaking in hot water. Each experiment was tested in three replications. Frying process of salted anchovy wass carried out using palm cooking oil. The characteristics of the product were assessed by sensory test, proximate test, salt content test and lisin level test. The results showed that the soaking treatment in hot water gave different characteristics to the resulting fried anchovy product where panelists preferred the fried salted anchovy product which was soaked in hot water before being fried because of the taste of the fried anchovy was not too salty. This result was related with the salt content test. The salt content of dried salted anchovy with soaking treatment was 10.33% while without soaking treatment reached 22.71%. The ash content test results also showed that the ash content of the fried  salted anchovy through the soaking treatment was lower, 14.56%, while without the soaking treatment, the ash content of the anchovies was 28.98%. Water content, protein content, fat content and water activity of fried anchovy with soaking treatment were 2.42%, 36.70%, 41.84%, and 0,54, while fried anchovy without soaking treatment were 2.08 %, 27.13%, 40.88%, and 0,50 Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/54718 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/27669 2022-04-19T17:30:03Z saintek:RSA

nmb a2200000Iu 4500 "201222 2020 eng " 2549-0885 1858-4748 dc Tawari, Ruslan HS Program Studi Pemanfaatan Sumberdaya Perikanan FPIK Unpatti Hermansyah, Hadi Paillin, J.B. R Siahainenia, Stany Penangkapan Madidihang (Yellowfin Tuna) skala kecil di Kabupaten Seram Bagian Barat  dihadapkan pada beberapa permasalahan mendasar antara lain: keterbatasan modal usaha,efisiensi dan efektivitas penangkapan (produktivitas), penanganan hasil tangkapan,manajemen usaha yang rendah,sumberdaya nelayan yang rendahdan pemasaran hasil tangkapan. Oleh karenanya dibutuhkan skenario pengembangan yang terintegralistik dan berkelanjutan (sistemik) agar dapat menghasilkan solusi bagi peningkatan pendapatan dan taraf hidup nelayanskala kecil dalam memanfaatkan potensi sumberdaya Madidihang.Kebijakan pengembangan usaha penangkapan madidihang skala kecil yang didasarkan pada aspek-aspek berkelanjutan usaha penangkapan mutlak diperlukan untuk menjawab permasalahan di atas.Tujuan penelitian ini adalahmenentukan strategi dan alternatif pengembangan usaha penengkapan Madidihang (Thunnus albacaress) skala kecil secara berkelanjutan di Kabupaten Seram Bagian Barat. Analisa data menggunakan analisa hierarki proses (AHP) mencakup aspek hukum, ekonomi, bioekologi, teknis, dan sosial. Hasil analisis menunjukan bahwa alternatif pengembangan usaha penangkapan Madidihang di Kabupaten Seram Bagian Barat diprioritaskan pada penguatan pemodalan dan pemasaran dengan memperhatikan aspek ekonomi dalam hal ini pada upaya peningkatan kesejahteraan dan pertumbuhan ekonomi nelayan skala kecil.   Small-scale fisheries activities of Yellowfin Tuna in West Seram District was confronted with many fundamental debates. Issues to be considered include limited working capital, efficiency, and difficulty in catching (productivity), handling of catches, low business management, low fisheries resources and marketing of catches. Therefore, an integrated and sustainable (systemic) development scheme is needed to produce solutions for increasing the income and living standards of small-scale farmers in utilizing the potential of Madidihang resources. Policy or strategy for developing Madidihang catching business This research is aimed at determining the strategy for developing a small-scale Madidihang catching business in West Seram District. Data analysis uses a process hierarchy analysis (AHP) that handles legal, economic, bioecological, technical and social aspects. The results of the analysis show that the alternative development of the Madidihang capture business in West Seram Regency is prioritized on strengthening capital and marketing by paying attention to economic aspects in this case to improve welfare and small-scale economic growth. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/27669 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/27669/79251 Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9323 2015-10-27T15:55:08Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc PENGARUH PEMBERIAN WARNA PADA BINGKAI DAN BADAN JARING KRENDET TERHADAP HASIL TANGKAPAN LOBSTER DI PERAIRAN WONOGIRI (Effect of Krendet webbing and frame colouring towards fishing captured for Spiny Lobster in Wonogiri seawaters) Jayanto, Bogi Budi Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Rosyid, Abdul Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Boesono, Herry Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Kurohman, Faik Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang ABSTRAK Spiny lobster mendeteksi mangsa makanannya dengan indera penglihatan dan indera penciumannya melalui organ antennule yang dimilikinya. Warna merah mempunyai panjang gelombang cahaya 622-770 nm.  Pemberian warna merah pada bingkai besi dan pemakaian badan jaring nylon berwarna merah pada alat tangkap akan lebih mudah memikat Lobster untuk mendekati umpan. Nelayan Wonogiri selama ini menggunakan Krendet berbingkai besi dan badan jaring nylon berwarna putih (Krendet transparan). Tujuan penelitian untuk mengetahui dan menganalisis pengaruh pemberian warna merah pada bingkai dan badan  jaring Krendet terhadap hasil tangkapan Lobster di perairan Wonogiri serta mengetahui Krendet. Dari  hasil penelitian didapatkan bahwa tangkapan Lobster dengan Krendet nelayan adalah 28 ekor (3.880 gr), sedangkan pada Krendet berwarna merah adalah 37 ekor (6.120 gr) Berdasarkan analisis data menggunakan uji t pada 2 sampel bebas didapatkan hasil nilai thitung = 2,46. Nilai ini lebih besar daripada ttabel(0,025;46) = 2,02 sehingga dapat disimpulkan pemberian warna merah pada Krendet berpengaruh terhadap jumlah hasil tangkapan Lobster. Kata kunci : Krendet merah, Krendet transparan, Lobster, Wonogiri Spiny lobster detected prey’s through vision and smell system with antennule organ. Red has light wavelength 622-770 nm, it can attract Spiny lobster to move closer to the prey. Krendet nylon webbing and iron frame colouring with red is one kind of Krendet modification. Wonogiri fishers’ used Krendet genuine with iron frame and white nylon webbing (Transparent krendet). This research purpose to analysed the effect of Krendet webbing and frame colouring towards Spiny Lobster capture result in Wonogiri seawaters. Research result shown Krendet modification had more Spiny Lobster (6.120 gr) rather than genuine Krendet (3.880 gr). Independent t-test result showed t = 2,46 and it was bigger than ttabel(0,025;46) = 2,02. It concluded colouring Krendet frame and webbing with red colour give more capture result of Spiny Lobster.Keywords : Red Krendet, Transparent Krendet, Spiny Lobster, Wonogiri Seawaters   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9323 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2759 2020-09-17T10:49:07Z saintek:RSA

nmb a2200000Iu 4500 "100814 2010 eng " 2549-0885 1858-4748 dc Production Technique of Female Tilapia (Oreochromis niloticus) Brood Stock at Verification Level Functional Male (XX) Yuniarti, Tristiana Program Studi Budidaya Perairan Universitas Diponegoro Semarang Jl. H. Wuruk 4A Semarang Hanif, Sofi Balai Besar Pengembangan Budidaya Air Tawar Sukabumi Jl. Selabintana No. 37 Sukabumi Jawa Barat Prayoga, Teguh Balai Besar Pengembangan Budidaya Air Tawar Sukabumi Jl. Selabintana No. 37 Sukabumi Jawa Barat Suroso, Suroso Balai Besar Pengembangan Budidaya Air Tawar Sukabumi Jl. Selabintana No. 37 Sukabumi Jawa Barat A technology for producing tilapia monosex female brood stock was needed in order to fulfill the female brood stock for YY male brood stock. The first step was producing XX male brood stock. A monosex female brood stock generation could be obtained if XX male brood stock population was mated with the female. The objective of this activity was to obtained XX male brood stock veryvication result. The result showed that 2 XX male were obtained from 38 fungtional male brood stocks. This could be seen that from female offspring > 95% only 2 brood stocks, i.e. brood stock code 460041352B qnd 460966737A Key word: Tilapia, breeding programe, sex reversal, female offspring Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 09:56:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2759 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 1 (2009): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/46475 2025-04-15T07:53:48Z saintek:RSA

nmb a2200000Iu 4500 "240426 2024 eng " 2549-0885 1858-4748 dc Nugroho, Restu Wahyu Departement of Aqutic Resources, Universitas Diponegoro, Jl. Prof. H. Soedarto, S.H, Tembalang, Kec. Tembalang, Kota Semarang, Jawa Tengah 50275 Hartoko, Agus Purnomo, Pujiono Wahyu Indonesia dikenal dengan kekayaan dan keanekaragaman sumber daya alamnya salah satunya terumbu karang.  Luas terumbu karang di Indonesia diperkirakan sekitar 50.000 km2 dan mempunyai keanekaragaman jenis dan produktivitas primer yang tinggi. Tujuan dari penelitian ini adalah mengetahui kondisi dan persentase tutupan karang serta mengetahui luasan terumbu karang di Pulau Tunda. Penelitian dilakukan pada bulan Agustus 2021 di Perairan Pulau Tunda. Metode yang digunakan dalam penelitian ini adalah metode survey dan metode yang digunakan untuk mengambil sampel adalah random sampling yang dilakukan di 6 stasiun penelitian. Analisis untuk menghitung kondisi dan presentase tutupan karang menggunakan metode LT (Line Transect), sedangkan untuk luasan tutupan karang menggunakan metode pemetaan melalui proses transform lyzenga dengan algoritma “if I3/I2 < =0,69 then Log (I1)+ (0.613193552* log(i2)) else null”. Hasil nilai tutupan karang tergolong dalam kategori baik, sedangkan nilai persentase tutupan karang hidup yaitu berkisar 50 – 68,4 % dan nilai persentase tutupan karang matinya yaitu 6,8 – 32,4 % serta luasan tutupan karangnya sebesar 119,993 Ha. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/46475 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33826 2021-11-30T11:46:08Z saintek:RSA

nmb a2200000Iu 4500 "210824 2021 eng " 2549-0885 1858-4748 dc Sanda, La Ode Muhamad Julhija Universitas Halu Oleo Ramli, Muhammad Asriyana, Asriyana https://orcid.org/0000-0002-3407-6308 Bahtiar, Bahtiar Kerang totok (Polymesoda erosa) merupakan salah satu jenis bivalvia bernilai ekonomis dan memiliki gizi yang relatif tinggi. Penelitian ini bertujuan untuk menganalisis hubungan antara sebaran kepadatan, ukuran, dan karakteristik habitat pada ekosistem mangrove Teluk di Kendari. Penelitian ini dilaksanakan dari bulan Mei hingga Oktober 2019 di hutan mangrove Teluk Kendari Sulawesi Tenggara. Analisis data yang digunakan meliputi: analisis kepadatan, pola penyebaran, pengelompokan ukuran, hubungan panjang bobot, dan analisis parameter fisik-kimiawi perairan menggunakan analisis Principle Component Analysis (PCA). Jumlah kerang totok yang terkumpul sebanyak 1.320 terdiri dari 984 individu jantan dan 336 individu betina. Ukuran panjang kerang totok sekitar 34,2–118,1 mm dan bobot 1,2–36,8 g. Kerapatan mangrove mempunyai korelasi tinggi terhadap kepadatan kerang totok (r 0,75;.R20,56). Pola penyebaran kerang totok cenderung mengelompok dan bahan organik substrat mempunyai kontribusi tertinggi terhadap sebaran kepadatan dan ukuran kerang totok pada habitatnya (77,92%).   Common geloina (Polymesoda erosa) is a type of bivalves that have economic value and relatively high nutrition. This study aims to analyze the relationship between density distribution, size, and habitat characteristics in the mangrove ecosystem of Kendari Bay. This research was conducted from May to October 2019 in the mangrove forests of Kendari Bay, Southeast Sulawesi. Analysis of the data used includes density analysis, distribution patterns, size grouping, length weight relationships, and analysis of physical-chemical parameters of waters using Principle Component Analysis (PCA). The number of common geloina collected was 1,320 consisting of 984 male and 336 female with total length and weight ranged from 34.2–118.1 mm and 1.2–36.8 g respectively. Mangrove density has a high correlation with the density of common geloina (r 0.75;.R20.6). The distribution pattern of common geloina tends to be clustered and the substrate organic matter had the highest contribution to the density and size distribution of common geloina in their habitat (77.92%). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33826 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/10560 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150828 2015 eng " 2549-0885 1858-4748 dc PENGGUNAAN KAYU SECANG (Caesalpinia sappan) SEBAGAI ALTERNATIF PENGGANTI RAPID DALAM PEWARNAAN KULIT SAMAK IKAN NILA (Oreochromis niloticus) Application of Sappan Wood as anAlternative of Replacement for Rapid in Nila(Oreochromis niloticus)Coloring Skin Nurlisa, Luthfiyatul Habibah Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Riyadi, Putut Har Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Romadhon, Romadhon Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK   Proses penyamakan memerlukan biaya yang cukup mahal, hal tersebut dikarenakan dalam proses penyamakan umumnya masih mengandalkan bahan impor. Bahan pewarnaan yang digunakan pada industri penyamakan kulit sebagian besar berupa pewarna sintetis impor yang sebagian besar mengandung bahan yang berbahaya bagi kesehatan, tidak ramah lingkungan dan mahal. Penelitian ini bertujuan untuk memanfaatkan bahan alami kayu secang yang digunakan untuk bahan pewarna dasar sebagai penggantikan bahan pewarna sintetis rapid yang menghasilkan produk berkualitas baik sesuai standar nasional. Hasil penelitian menunjukkan bahwa kulit ikan Nila tersamak dengan perlakuan pewarnaan menggunakan larutan kayu secang 20% memiliki kualitas samak  yang terbaik. Uji hedonik parameter warna 3,933, parameter serat daging 4,467, parameter kulit 4,233 dan parameter sisik/nerf 4,467. Ketahanan gosok cat basah 4,500, ketahanan gosok cat kering 4,333, kekuatan tarik 1364,920 N/cm2 , kemuluran 58,327%, kekuatan sobek 208,640 N/cm2. Hasil penelitian ini memenuhi syarat mutu Kulit Ular Air Tawar Samak Krom  (SNI 06-4586-1998).   Kata kunci : Pewarnaan, Larutan Kayu Secang, Kualitas Samak, Ikan Nila   ABSTRACT   Tanning are expensive process, its because tanning process still using import substance. Coloring substance that usually use in tanning is import synthethic stain which is can cause environmental contamination, health problem and expensive. The purpose of this research is using Sappan wood as base coloring substance to replace rapid sintetis colour which produce product that have a good quality that met with the standart. The optimal concentration of Sappan wood solution was 20%, which resulted in hedonic test ( color value 3,933 ; meat fibers value 4,467; skin value 4,233 ; nerf value 4,467), 4,500 for paint abrasive resistance by wet cloth value, 4,333 for paint abrasive resistance by dry cloth value, 1364,920 N/cm2 for tensile strength value, 58,327% for elongation at break value and 208,640 N/cm2 for tear strength value. All of the test result met the SNI 06-4586-1998 (Quality of Chrome Tanning Freshwater Snake Skin). Keywords : Coloring, Sappan Wood Solution, Tanning Quality, Nila Fish  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/10560 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/47867 2025-04-15T07:39:12Z saintek:RSA

nmb a2200000Iu 4500 "230831 2023 eng " 2549-0885 1858-4748 dc Novitasari, Dhea Pradhika Departemen Teknologi Hasil Perikanan, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Rianingsih, Laras Kurniasih, Retno Ayu Terasi adalah produk perikanan yang terbuat dari udang rebon dengan cara fermentasi garam. Penambahan gula pada pembuatan terasi berperan untuk mengimbangi rasa asin pada terasi, sebagai sumber karbohidrat bagi asam laktat selama proses fermentasi, dan mampu memicu reaksi Maillard karena adanya reaksi antara gula dengan asam amino menghasilkan MPRs (Maillard reaction products) yang berguna sebagai antioksidan. Tujuan dari penelitian ini adalah mengkaji pengaruh jenis gula yang berbeda terhadap aktivitas antioksidan terasi udang rebon dan menentukan jenis gula terbaik terhadap aktivitas antioksidan terasi. Metode penelitian experimental laboratories merupakan rancangan acak lengkap (RAL). Perlakuan pada penelitian adalah perbedaan jenis gula pada terasi udang rebon, yaitu gula merah, gula pasir dan gula aren dengan konsentrasi 10% masing-masing tiga kali pengulangan, serta kontrol menggunakan terasi tanpa gula. Data parametrik dianalisis menggunakan uji sidik ragam dan uji lanjut beda nyata jujur, sedangkan data non-parametrik dianalisis menggunakan Kruskall-Wallis dan uji lanjut Mann-Whitney Test. Perbedaan gula pada pengolahan terasi memberikan pengaruh nyata (P<0,05) terhadap aktivitas antioksidan, kadar gula pereduksi, kadar protein dan warna. Hasil yang tidak berbeda nyata ditunjukkan pada kadar air dan sensori. Hasil menunjukkan bahwa jenis gula yang terbaik pada terasi dengan gula pasir karena memiliki nilai antioksidan tertinggi dengan nilai 45,05%±0,76, kadar gula pereduksi 7,48%±0,56, kadar air 33,49%±1,56, kadar protein 18,29%±0,95, nilai L 19,31±0,42, nilai a* 4,87±0,07, nilai b* 6,08±0,3 dan nilai sensori 8,31±0,06 Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-08-31 14:43:36 https://ejournal.undip.ac.id/index.php/saintek/article/view/47867 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 2 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/39482 2021-12-03T04:04:34Z saintek:RSA

nmb a2200000Iu 4500 "211022 2021 eng " 2549-0885 1858-4748 dc CHARACTERISTIC OF BLUE SWIM CRAB MUSTARD (Portunus Pelagicus) PROTEIN HYDROLYSATE WITH DIFFERENT PAPAIN ENZYME CONCENTRATIONS Fadilah, Nur Departement of Fishery Product Technology Faculty of Fisheries and Marine Science Diponegoro University https://scholar.google.co.id/citations?user=coM5mhkAAAAJ&hl=en Dewi, Eko Nurcahya Departement of Fishery Product Technology Faculty of Fisheries and Marine Science Diponegoro University Romadhon, Romadhon Departement of Fishery Product Technology Faculty of Fisheries and Marine Science Diponegoro University Purnamayati, Lukita Departement of Fishery Product Technology Faculty of Fisheries and Marine Science Diponegoro University Papain enzyme; protein hydrolysate; swimming crab mustard Mustard is a waste contain protein produced from the shell stripping process of blue swimming crab. It has a great potential to be processed as protein hydrolysate. Papain enzyme could be a hydrolysis agent due to its specific function and didn’t cause protein damage. The liquid product of the mustard hydrolysate protein requires a drying process to become a powder product. The drying process method is known as foam-mat drying. The research aims to determine the effect of papain enzyme addition on the characteristics of mustard protein hydrolysate from blue swimming crab and the best enzyme concentration. The research method was  used a completely randomized design (CRD) with different enzyme concentration treatments (0%, 5%, 7.5% and 10%). The data obtained were tested using  ANOVA test, in order  to determine differences  between  treatment a  Honestly Significant Difference (HSD) test were applied. The results showed that the addition of different papain enzyme concentrations had a significantly different effect (P<5%) on all test parameters (yield, hydrolysis degree, protein content, moisture content, fat content, ash content, protein digestibility, and amino acid profile). Based on the results of the study, the best mustard hydrolysate protein were the addition of 10% papain enzyme concentration with a yield value of 19.14±0.29%, hydrolysis degrees of 40.19±0.24%, protein content 49.21±0.83% (dw), the moisture content 7.20±0.20%, fat content 1.49±0.29%, ash content 7.22±0.20%, protein digestibility 88.35% and the highest amino acid level was glutamic acid (3.746%). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/39482 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/49061 2025-04-15T07:10:48Z saintek:RSA

nmb a2200000Iu 4500 "240430 2024 eng " 2549-0885 1858-4748 dc Putri, Ajeng Nofa Apriliana Department of Fishery Products Technologyi , Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof Soedarto, SH, Tembalang, Semarang, Jawa Tengah, Indonesia 50275 Eucheuma cottonii merupakan salah satu jenis rumput laut merah penghasil karagenan yang banyak dibudidayakan di Indonesia, dengan jumlah produksi pada tahun 2018 mencapai sekitar 8,62 juta ton. Eucheuma cottonii dapat diolah menjadi produk turunan hidrokoloid yaitu kappa karagenan. Karagenan dapat dijadikan sebagai bahan baku pembuatan bioplastik karena bersifat hidrokoloid sehingga memiliki karakteristik elastis dan mudah terurai (biodegradable). Tujuan dari penelitian ini yaitu mengetahui pengaruh dan konsentrasi karagenan terbaik. Rancangan penelitian yang digunakan yaitu Rancangan Acak Lengkap (RAL) pada nilai ketebalan, kuat tarik dan kelarutan, serta Split Plot in Time pada nilai biodegradasi dengan 2 faktor yaitu konsentrasi karagenan dan waktu pengamatan. Hasil penelitian ini menunjukkan bahwa peningkatan konsentrasi tepung karagenan memberikan pengaruh nyata terhadap semua parameter uji (P<0,05), dimana semakin tinggi konsentrasi tepung karagenan yang ditambahkan maka karakteristik sedotan bioplastik semakin tebal, kuat, sulit larut dan sulit terdegradasi. Nilai kuat tarik dan kelarutan terbaik terdapat pada perlakuan konsentrasi 4% yaitu sebesar 0,595 ± 0,002MPadan 293,00 ± 11,35menit. Uji ketebalan dan biodegradasi terbaik terdapat pada perlakuan konsentrasi 2% yaitu sebesar 1,746 ± 0,04mm, 2,82 ± 0,173 gram, sedotan bioplastik memiliki kenampakan bening, berwarna putih tulang, tidak ada gumpalan putih, terdapat sedikit gelembung, bertekstur sedikit halus dan tidak berbau. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 https://ejournal.undip.ac.id/index.php/saintek/article/view/49061 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11154 2020-04-17T19:23:41Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc PENGARUH PERBEDAAN BAHAN PENYAMAK TERHADAP KUALITAS KULIT IKAN PARI MONDOL (Himantura gerrardi) TERSAMAK The Effect of Different Tanning Materials towards Leather Quality of Tanned Mondol Stingray (Himantura gerrardi) Kusmaryanti, Tika Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Riyadi, Putut Har Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kualitas; kulit Ikan Pari; penyamak   Usaha penyamakan kulit ikan Pari umumnya dilakukan oleh usaha kecil menengah dan hanya menggunakan metode aldehid dengan bahan samak formalin, Selain itu juga belum diketahui kualitas kulit ikan Pari Mondol tersamak yang menggunakan bahan samak krom. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan penggunaan jenis bahan penyamak terhadap kualitas fisik dan kimiawi kulit ikan Pari Mondol tersamak. Materi penelitian berupa kulit ikan Pari Mondol (Himantura gerrardi) dan bahan samak. Penelitian dilakukan dengan metode eksperimental laboratoris. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok dengan perlakuan bahan samak yang berbeda, yaitu formalin, krom, dan kombinasi. Masing-masing perlakuan diulang tiga kali. Variabel mutu yang diamati adalah kekuatan tarik, kemuluran, kekuatan sobek, ketebalan, suhu kerut, ketahanan bengkuk (bengkok), pH dan kadar air. Data dianalisis menggunakan ANOVA dan perbedaan diantara perlakuan diuji dengan Uji Tukey. Hasil penelitian menunjukkan bahwa perbedaan bahan penyamak menyebabkan pengaruh nyata terhadap nilai kekuatan tarik, kekuatan sobek dan ketebalan tetapi tidak memberikan pengaruh nyata terhadap nilai pH, kadar air dan ketahanan bengkuk. Produk yang terbaik yaitu kulit ikan Pari Mondol yang disamak dengan bahan samak kombinasi antara krom dan mimosa, yang sebagian persyaratan mutunya sudah memenuhi persyaratan mutu kulit ikan Pari tersamak menurut SNI 06-6121-1999.   Kata kunci: Kualitas, kulit Ikan Pari, penyamak     ABSTRACT  Meanwhile the quality of Stingray tanned leather which using chrome tannin materials was not yet known. This research aims to determine the effect of different types used tannin materials towards physical and chemical quality of Stingray leather quality. The materials used in this research isStingray (Himantura gerrardi) skin and tannin materials. The study was conducted with laboratory experimental method. The experiments was designed according to the Randomized Block Design with different tanning materials (formalin, chrome, and chrome-combination). Each treatment was done with in triplicate. The quality variables that measured were tensile strength, elongation, tear strength, thickness, shrinkage temperature, bent resistance, pH and moisture content. Data were analyzed using Analysis of Variance. To find the difference between treatments, the data were tested with Honestly Significant Difference Test . The results showed that various of tannin materials gave significant effects to the values of tensile strength, tear strength and thickness however there was not any significant effect on bent resistance, moisture content and pH value. The best product were Stingray tanned leather with chrome-combination tannin material, which partially quality requirements has been comply with Stingray tanned leather quality requirements according to SNI. Keywords: Quality, stingray skin, tanning Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11154 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21567 2020-04-17T19:28:42Z saintek:RSA

nmb a2200000Iu 4500 "180219 2018 eng " 2549-0885 1858-4748 dc PEMETAAN WILAYAH PENANGKAPAN IKAN TERI (Stolephorus sp) BERDASARKAN DATA SATELIT OCEAN COLOR DI PERAIRAN KABUPATEN BATANG (Mapping of Anchovy (Stolephorus sp) Fishing Ground based on Ocean Color Satellite Data in the Batang Regency Waters) Gamawan, Rosyid Paundra Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Wibawa, Teja Arief Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Daerah penangkapan; Stolephorus sp; Plankton; dan Perairan Kabupaten Batang Kelimpahan Ikan Teri banyak ditemukan di perairan laut Kabupaten Batang saat musim timur. Penggerak ekonomi masyarakat pesisirnya pada musim timur tergantung hasil tangkapan Ikan Teri. Kegiatan penangkapan Ikan Teri oleh nelayan kurang efisien dalam hal waktu dan biaya operasional. Penginderaan jauh merupakan teknologi menghasilkan data observasi secara spasial dan time series. Penelitian ini bertujuan untuk mengetahui kelimpahan plankton dominan dan persebaran Ikan Teri di perairan Kabupaten Batang pada musim timur. Penelitian ini dilaksanakan pada bulan Juli - September 2017. Variabel penelitian yang diteliti adalah adalah suhu permukaan laut, klorofil-a, kelimpahan fitoplankton, kelimpahan zooplankton dan hasil tangkapan Ikan Teri. Pengambilan data kelimpahan plankton menggunakan nansen water sampler. Pengambilan data hasil tangkapan Ikan Teri dengan mencatat hasil tangkapan setiap tripnya. Data SPL dan klorofil-a diunduh dari website Ocean Color. Kedua data tersebut berasal dari rerata nilai masing-masing sensor harian (Terra MODIS, Aqua MODIS dan SNPP VIIRS) yang dikomposit dari tiga hari yaitu, data satu hari sebelum waktu penangkapan, saat penangkapan, dan satu hari setelah penangkapan. Semua data variabel diuji outlier, uji normalitas, tranformasi data, dan uji kolinearitas. Data hasil 4 uji tersebut digunakan untuk membuat persamaan pemodelan rantai makanan Ikan Teri, yaitu persamaan kelimpahan fitoplankton, kelimpahan zooplankton dan kelimpahan Ikan Teri. Persamaan tersebut digunakan untuk menduga pesebaran Ikan Teri. Hasil kelas fitoplankton yang paling dominan adalah Bacillariophyceae, lalu zooplankton adalah Copepoda. Persebaran Ikan Teri bulan Juni 2017 menyebar rata dari timur ke barat perairan Kabupaten Batang. Persebaran Juli 2017, lebih cenderung di bagian timur perairan Kabupaten Batang.  Persebaran Agustus 2017, persebaran Ikan Teri yang hampir rata di setiap perairan Kabupaten Batang.   Anchovy abundance is commonly found in the marine waters of Batang Regency during the east season. The economy of coastal communities in the east season depends on the catch of Anchovy. Fishing activities by fishermen are less efficient in terms of time and operational costs. Remote sensing is a technology to produce spatial observation data and time series. This study aims to determine the abundance of plankton (phytolankton and zooplankton) and to determine the distribution of Anchovy fishing ground in the eastern seasons of 2017 based on food chains and oceanographic satellite imagery observations. This research was conducted in July-September 2017. The research variables are sea surface temperature, chlorophyll-a, phytoplankton and zooplankton abundance and fish catch. Plankton abundance is taken by nansen water sampler, while the Anchovy catch data is taken from the catch . Data of sea surface temperature and chlorophyll-a are obtained from Ocean Color website. They are average value of each daily sensor (Terra MODIS, Aqua MODIS and SNPP VIIRS) compiled from three days (one day before taking in situ data, the day taking in situ data, and one day after taking in situ data). Variable data was tested outlier, normality test, data transformation, and cholinearity test. Furthermore, the result data of the four tests are used to make some modeling equations of Anchovy food chain, thats are phytoplankton abundance equation, zooplankton abundance and Anchovy abundance. The equation of Anchovy abundance is used to estimate the distribution of anchovies. This research showed that dominant phytoplankton species at Anchovy fishing ground in Batang Regency is Bacillariophyceae, then, the  zooplankton is Copepoda. Distribution of Anchovy at Batang Regency waters in June 2017 is spread evenly from east to west of waters; in July 2017 is wider spread in the eastern part of the waters; in August 2017 is almost equally in each of the waters. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21567 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6771 2025-04-26T12:35:46Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc Potensi dan Peluang Pengembangan Usaha Perikanan Tangkap Di Pantura Jawa Tengah Triarso, Imam Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang The research on capture fisheries resources in north coastal of Central Java were to anticipate  amount produce and effort of capture fisheries. Usefulness from this research expected to earn as reference of management of small scale fisheries and consideration alternative which can be taken for local government of Central Java Province. Primary data were collected from local fishers, while secondary data were collected from district and Marine and Fishery Services Central Java Province. Data series of 2006 to 2009 were also analyzed by bioeconomic analysis with surplus production model. The result indicate that condition of capture fisheries resources in North Coastal of Central Java were overfishing, included its several regency/city adjacent areas. The effort in  developing fish capture has reached its boredom circumstance so this situation needs better maintenance and  control toward the capturing activities. The policy expected to minimize exploitation of fishery resources on coastal area, and the vessel can more further to off shore and oceanic area. The government as a policy maker on fisheries management for coastal fisheries must applicable precautionary approach by focusing on biology and economic aspects.   Key words:  fisheries product, bio-economic model, small scale fisheries management Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6771 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/42737 2022-04-19T17:13:22Z saintek:RSA

nmb a2200000Iu 4500 "220325 2022 eng " 2549-0885 1858-4748 dc Putra, Zusuf Adi Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275". Dewi, Eko Nurcahya Purnamayati, Lukita Rianingsih, Laras Pupuk organik cair dari Sargassum sp. dengan perlakuan konsentrasi enzim protease yang berbeda yaitu 0 %, 1 %, 2 % dan 3 % diharapkan mampu menaikan kandungan unsur hara dan hormon pertumbuhan pada tanaman. Tujuan dari penelitian ini untuk mengetahui pengaruh perbedaan konsentrasi protease terhadap kandungan unsur hara pada pupuk organik cair. Pupuk cair dibuat dengan pengecilan ukuran Sargassum sp. dan perendaman dengan larutan asam fosfat. Homogenisasi dan pemanasan dengan penambahan molase 3% sebagai sumber nutrisi mikroba dan KOH 1% untuk memaksimalkan kandungan mineral. Proses fermentasi dilakukan selama 10 hari sebagai fase eksponensial mikroba Trichoderma sp. yang berperan dalam fiksasi nitrogen dan menghasilkan fitohormon, serta sebagai dekomposer bahan organik. Hasil analisis ANOVA dan uji Tukey menunjukkan bahwa perlakuan konsentrasi enzim protease yang berbeda memberikan perbedaaan nyata. Komposisi enzim protease dengan konsentrasi 3% memberikan nilai tertinggi pada C-Organik (1,56%), Nitrogen (0,90), fosfor (0,88%) dan kalium (0,85%), sedangkan untuk rendemen (65,83%) dan nilai pH (6,33%) dengan nilai tertinggi yaitu enzim protease dengan konsentrasi 0%. Hormon pertumbuhan pada pupuk organik cair yaitu auksin, giberelin, asam absisat, zeatin dan kinentin. Hasil hormon pupuk organik cair dengan penambahan enzim yaitu hormon auksin 36%, giberelin 29%, zeatin 16% dan kinentin 17%, sementara untuk asam absisat lebih rendah yaitu sebesar 99%.   Liquid organic fertilizer from Sargassum sp. with the treatment of different concentrations of protease enzymes, namely 0%, 1%, 2% and 3% are expected to increase the content of nutrients and growth hormones in plants. The purpose of this study was to determine the effect of differences in protease concentrations on the nutrient content of liquid organic fertilizer. Size reduction of Sargassum sp. and soaking in phosphoric acid solution. Homogenization and heating with the addition of 3% molasses as a source of microbial nutrition and 1% KOH to maximize mineral content. The fermentation process was carried out for 10 days as the exponential phase of Trichoderma sp. which plays a role in nitrogen fixation and produces phytohormones, as well as decomposers of organic matter. The results of ANOVA analysis and Tukey's test showed that the treatment of different concentrations of protease enzymes gave significant differences. The composition of the protease enzyme with a concentration of 3% gave the highest value for C-Organic (1.56%), Nitrogen (0.90), phosphorus (0.88%) and potassium (0.85%), while the yield (65, 83%) and the highest pH value (6.33%) was the protease enzyme with a concentration of 0%. Growth hormones in liquid organic fertilizers are auxin, gibberellins, abscisic acid, zeatin and kinentin. The yield of liquid organic fertilizer hormones with the addition of enzymes, namely 36% auxin hormone, 29% gibberellin, 16% zeatin and 17% kinentin, while for abscisic acid is lower at 99%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/42737 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/42737/131695 Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6817 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc The Experiment of Floating Ability of Material of Polyurethane and Styrofoam Setiyanto, Indradi Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Hartoko, Agus Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Polyurethane can  be used  as alternative of  substituted material  of  synthetic cork (Styrofoam)  giving buoyancy at float vest. The research was aimed to observe the difference both materials (Polyurethane and cork) on acceptable load, so that efficiency can be estimated. The same load was given to gravity at both material that is 234.576 g, then checked the float ability. Results showed that Polyurethane indicated buoyancy of polyurethane better cork, with efficiency 3.6 %, for sample material with size of 10 cm x 7.5 cm x 5.5 cm. The Significant change of efficiency was expected can be done by determination of material (sample)  according  to  use in  field  and  different  density  of  polyurethane  when  conducting  moldings process.   Key words: The experiment of floating ability Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6817 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/41361 2022-10-21T03:34:42Z saintek:RSA

nmb a2200000Iu 4500 "220906 2022 eng " 2549-0885 1858-4748 dc Aisyah, Siti Department of Aquatic Resource Management, Universitas Bangka Belitung, Jl. Kampus Terpadu UBB, Balunijuk, Kepulauan Bangka Belitung Syarif, Ahmad Fahrul Indrawati, Ayuningtyas Ikan Selangat merupakan salah satu jenis ikan bernilai ekonomis dan menjadi kuliner utama dalam festival tahunan budaya dari masyarakat pesisir di wilayah Kecamatan Tukak Sadai, Kabupaten Bangka Selatan. Penelitian mengenai identifikasi karakter morfologi dan molekuler Ikan Selangat di Pulau Bangka dilakukan untuk mengkaji spesies Ikan Selangat yang ditangkap di perairan Kabupaten Bangka Selatan. Pengambilan sampel menggunakan metode random sampling di lokasi pendaratan potensial di sekitar Perairan Kabupaten Bangka Selatan pada bulan Juli 2018- Maret 2019. Sampel Ikan Selangat diidentifikasi secara morfologi dan molekuler menggunakan gen mitokondria Cytochrome C Oxydase Subunit I (COI). Hasil pengukuran morfometrik Ikan Selangat yang tertangkap di Perairan Kabupaten Bangka Selatan memiliki kisaran panjang total antara 13.0 – 15.4 cm dan panjang standar antara 10,5 – 11,8 cm, sedangkan hasil perhitungan karakter meristik sirip punggung (dorsal) memiliki jumlah jari-jari keras sebanyak 7 – 8 dan jari-jari lemah 8 – 9. Identifikasi molekuler gen COI spesies Ikan Selangat adalah Anodontostoma chacunda. Informasi ini dapat digunakan sebagai basis data potensi sumberdaya ikan di Pulau Bangka.   Selangat fish is one of the species with economic value and is the main culinary in the annual festival part of cultural coastal communities in the area of Tukak Sadai District, South Bangka Regency. Study on the identification of morphological and molecular characters of Selangat fish was conducted to determine the species of Selangat fish caught in the waters of the South Bangka Regency. Sampling used a random sampling method at landing sites around the waters of South Bangka Regency in July 2018 – March 2019. Samples of Selangat fish were identified morphologically and molecularly using mitochondrial Cytochrome C Oxydase Subunit I (COI) gene. The results of morphometric measurements Selangat fish have a total length range 13.0 – 15.4 cm and standard length 10.5 – 11.8 cm, while the results of the meristic character calculation the dorsal fin which consists of 7 - 8 hard fingers and 8 – 9 weak fingers. Molecular identification the COI gene of the Selangat fish species is Anodontostoma chacunda. This information can be used as a database of potential fish resources in Bangka Island. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/41361 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/74623 2025-11-21T06:08:58Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc MAPPING ENABLERS AND CHALLENGES OF TILAPIA WOMEN FARMERS IN ENHANCING FOOD SECURITY THROUGH ACCELERATED DIGITAL TRANSFORMATION IN SLEMAN REGENCY, SPECIAL REGION OF YOGYAKARTA, INDONESIA Prihatiningtyastuti, Endah Department of Fisheries, Faculty of Agriculture, Univeristas Gadjah Mada https://orcid.org/0009-0002-6567-4041 Dayaram, Kantha School of Management and Marketing, Faculty of Business and Law, Curtin University, Australia Saksono, Hery Department of Fisheries, Faculty of Agriculture, Univeristas Gadjah Mada Suadi, Suadi Department of Fisheries, Faculty of Agriculture, Univeristas Gadjah Mada Shafira, Azellia Alma Departemen Manajemen Fakultas Ekonomika dan Bisnis Universitas Gadjah Mada, Jl. Sosio Humaniora No. 1, Bulaksumur, Depok, Sleman, Yogyakarta, Indonesia Cahyani, Aulia Putri Nur Departemen Sosial Ekonomi Pertanian Fakultas Pertanian Universitas Gadjah Mada, Jl. Flora No. 1 Bulaksumur, Depok, Sleman, Yogyakarta, Indonesia Paramitha, Dinda Laksmi Department of Fisheries, Faculty of Agriculture, Univeristas Gadjah Mada Rural Women; Fish Farming; Women's Empowerment; Digital Transformation; Yogyakarta This study investigates the enablers and challenges of digital transformation for women tilapia farmers in Sleman Regency, aiming to understand its role in enhancing food security. The research employed qualitative approaches, including document analysis, focus group discussions, and in-depth interviews with 28 informants, conducted in Sleman Regency, Yogyakarta, Indonesia. Findings reveal that women farmers in the 'Mina Mandiri' group effectively leverage digital technologies to boost productivity and market.  Reach. Key enablers include strong support from local resources, family, and community networks. Despite these enablers, they are still facing structural hurdles, including restricted access to education, inadequate computer literacy, and the absence of gender-responsive regulations, compounded by cultural impediments associated with gender roles and male dominance in the sector. The study underscores the critical need for gender-responsive strategies to overcome these obstacles and fully harness the potential of digital transformation, thereby significantly enhancing food security through the empowerment of women tilapia farmers. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/74623 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16821 2020-04-17T19:26:48Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc HUBUNGAN SUBSTRAT DOMINAN DENGAN KELIMPAHAN GASTROPODA PADA HUTAN MANGROVE KULONPROGO, YOGYAKARTA (The Relation of dominant substrate to Gastropods Abundance in the Mangrove Forest of Kulonprogo, Yogyakarta) Chusna, Rendra Rini Rismatul Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu kelautan, Universitas Diponegoro Rudiyanti, Siti Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu kelautan, Universitas Diponegoro Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu kelautan, Universitas Diponegoro Tipe Substrat; Gastropoda; Mangrove; Kulonprogo   Substrat mangrove terdiri atas fraksi pasir (sand), lumpur (silt), dan liat (clay). Gastropoda adalah kelompok hewan dari filum moluska yang hidup di jenis substrat dari kasar ke halus. Kelimpahan gastropoda dipengaruhi oleh substrat dasar yang merupakan habitat dari gastropoda, serta kandungan nutrien yang berbeda pada tiap fraksi akan mempengaruhi kelimpahan Gastropoda yang berada di dalamnya. Oleh karena itu, perlu dilakukan penelitian mengenai hubungan substrat dengan kelimpahan Gastropoda, karena Gastropoda salah satu faktor penting untuk menjaga keseimbangan ekologi pesisir khususnya ekositem mangrove. Penelitian  dilakukan di Hutan Mangrove Kulonprogo Yogyakarta bertujuan untuk mengetahui tipe substrat, kelimpahan Gastropoda dan hubungan kedua variabel tersebut. Penelitian  dilakukan pada bulan April sampai dengan  Mei 2017. Metode yang digunakan adalah metode deskriptif yaitu metode penelitian yang memberikan gambaran secara sistematis, faktual, akurat mengenai faktor-faktor dan sifat-sifat dari suatu daerah atau populasi. Metode pengambilan sampel substrat dan Gastropoda menggunakan metode Purposive Sampling Method pada 3 stasiun berbeda yaitu stasiun I pada bagian dekat pemukiman penduduk, stasiun II pada bagian dekat tambak, dan stasiun III pada bagian muara sungai. Hasil penelitian menunjukkan jenis substrat pada tiap stasiun adalah lempung dan lempung berdebu yang didominasi oleh fraksi lumpur (silt) dan pasir (sand). Jenis Gastropoda yang didapatkan berasal dari genus Littoraria, Natica, Faunus, Cerithium, Neritina, Polinices, Conus, Telescopium, dan Nerita. Meningkatnya prosentase fraksi pasir (sand) dan liat (clay) akan diikuti oleh meningkatnya kelimpahan Gastropoda, sedangkan untuk fraksi lumpur (silt) akan sebaliknya yaitu meningkatnya fraksi lumpur akan diikuti oleh menurunnya kelimpahan Gastropoda.   Kata kunci: Tipe Substrat, Gastropoda, Mangrove, Kulonprogo     Mangrove substrates formed by sands, silts, and clays. Gastropods is a group of animals of the phylum of mollusks lives on the type of substrate from rough to smooth. Gastropod abundance is affected by substrate which habitat of gastropods and nutrients influencing the distribution of gastropods. Therefore, it needs a deeper research about the correlation of substrate and the amount of gastropods , because gastropods are the importants factor of mangrove ecosystem. The research helds in Kulonprogo Mangrove Forest, Yogyakarta, and the goals are to know the type of substrate, the amount of gastropods, and the correlation among them. This research held on April – Mei 2017. This research use descriptivemethod wich research method that provide a systematic, factual, accurate description of the factors and quality an area or population. The method on sampling sediments and gastropods is purposive sampling in 3 station. Station 1 near the settlement, station 2 near ponds, station 3 on the estuary. The results of this research shows that the sediments on every station are clay and dusty clay, which is dominated by silt,and sand fraction. The gastropods that obtained are Littoraria, Natica, Faunus, Cerithium, Neritina, Polinices, Conus, Telescopium, and Nerita. The percentage increasing on sands and clays fraction would be more gastropods. Otherwise on silts fraction.      Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16821 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22884 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190727 2019 eng " 2549-0885 1858-4748 dc PERFORMA BIOLOGIS TIRAM MUTIARA (Pinctada maxima) YANG DIBUDIDAYAKAN DENGAN KEPADATAN BERBEDA MENGGUNAKAN SISTIM LONGLINE (The Biological Performance Of Pearl Oysters (Pinctada Maxima) Which Are Cultured In Different Densities Uses A Longline System) Hastuti, Sri Hastuti Deparemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Subandiyono, Subandiyono Deparemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Windarto, Seto Deparemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Nugroho, Ristiawan Agung Deparemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Pinctada maxima; kepadatan; pertumbuhan; sistim longline Kerang mutiara (Pinctada maxima) merupakan salah satu sumberdaya laut yang memiliki prospek untuk dikembangkan, bernilai ekonomis yaitu menghasilkan butiran mutiara yang bernilai jual tinggi.  Budidaya tiram mutiara pada tahap pendederan merupakan salah satu rangkaian kegiatan dalam usaha produksi mutiara.  Pada saat ini benih hasil pendederan banyak dibutuhkan perusahaan mutiara untuk meningkatkan target produksi mutiaranya.  Rendahnya angka kelangsungan hidup tiram yang disebabkan oleh kepadatan tebar dalam satu pocket net merupakan permasalahan yang perlu dipecahkan.  Penelitian ini bertujuan untuk memperoleh kepadatan optimum dalam pemeliharaan kerang mutiara.  Penelitian dilakukan di perairan Sekotong, Lombok Barat.  Penelitian ini dirancang dengan model rancangan acak lengkap (RAL).  Variabel bebas yang diterapkan adalah kepadatan spat tiram mutiara (P. Maxima), yaitu 50, 100 dan 150 individu pocket-1.  Hasil penelitian menunjukkan bahwa Kepadatan kerang mutiara (P. Maxima) dalam sistim pemeliharaan longline berpengaruh terhadap performa pertumbuhan dan kelangsungan hidup. Kepadatan optimum kerang mutiara dalam 1 pocket net berada pada kisaran 89 hingga 124  individu per pocket net.     Pearl oyster (Pinctada maxima) is one of the marine resources that has the prospect of being developed, has high economic value, and produces pearls of pearls that have high selling value.   Nursery pearl oysters is one of a series of activities in the business of pearl production.  Harvest from the nursery are needed by pearl companies to increase their pearl production target at this time.  The low survival rate of oysters caused by shell density in the longline nursery method is a problem that needs to be solved. This research was conducted with the aim to analyze optimum density in the cultivation of oysters.  The research was conducted in Sekotong waters, West Lombok, Indonesia. This study was designed with a completely randomized design model (CRD).  The independent variables applied were the density of pearl oyster spat (P. Maxima), namely 50, 100 and 150 individual pocket-1.  The results showed that the density of pearl oysters (P. Maxima) in the longline system affected growth and survival performance. The optimum density of pearl oysters in 1 pocket net is in the range of 89 to 124 individuals pocket net-1.  The maximum density that is still capable of supporting its life is 135 individuals pocket net-1 Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22884 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/22884/63060 https://ejournal.undip.ac.id/index.php/saintek/article/download/22884/63061 Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6839 2025-04-26T12:53:52Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc The Effect of Using Catalyst in Transesterification Reaction on the Biofuels Quality from Sardine Flour Oil Waste Sahubawa, Latif Jurusan Ilmu Perikanan Fakultas Pertanian Universitas Gajah Mada Ningtyas, Diah Probo Jurusan Ilmu Perikanan Fakultas Pertanian Universitas Gajah Mada Process of the transesterification reaction of sardine flour oil waste with NaOH as base catalyst in producing biofuels was conducted. The research purpose has studied the influence of NaOH concentration in transesterification process and examinate its effect on the quality of biofuels production, conversion, and physic quality. The variables that analysed was the effect of NaOH concentration as catalyst (0.5%, 1.0%, 1.5%, and 2.0% from amount of oil and methanol) in the transesterification reaction step. The result showed that the increasing NaOH concentration (0.5% until 1.5%), enhanced the biofuel conversion (%). The highest conversion of biofuels was achieved by using 1.50% NaOH (w/w) with 45.34% biofuels conversion. The major component in the biofuels was methyl palmitate (20.31%). ASTM analysis data also supported that the biofuel product was in agreement with automotive diesel fuel specification.   Keywords: catalyst, transesterification, biofuels, quality, wastes Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6839 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/22065 2019-02-14T10:16:10Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/76394 2026-02-05T07:11:14Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Mustakim, Moh Abdunnur, Abdunnur Rafi’i, Akhmad Fakultas Perikanan dan Ilmu Kelautan, Universitas Mulawarman Novia, Rani Perairan Kota Bangun (Kutai Kartanegara, Kalimantan Timur) yang terhubung dengan Sungai Mahakam adalah sumber mata pencaharian utama (95% penduduknya nelayan) yang bergantung pada ikan bernilai ekonomi tinggi. Kunci kesehatan ekosistem perikanan ini adalah plankton, yang merupakan dasar rantai makanan dan bioindikator kualitas air. Saat ini, keterbatasan data komprehensif mengenai struktur komunitas plankton menghambat pengelolaan perikanan berkelanjutan. Oleh karena itu, penelitian mendalam tentang struktur komunitas plankton di Kota Bangun sangat krusial, karena menjadi dasar ilmiah untuk pengelolaan perikanan air tawar yang efektif, mendukung populasi ikan dan menjamin keberlanjutan nelayan. Penelitian ini bertujuan untuk mengetahui komposisi plankton, kelimpahan dan indeks ekologi di perairan Kota Bangun. Penelitian ini merupakan penelitian deskriptif kuantitatif. Pengambilan sampel plankton dilakukan secara vertikal (0–5 meter) menggunakan plankton net, sampel air diambil menggunakan water sampler di lima stasiun penelitian. Hasil penelitian ditemukan Jenis fitoplankton sebanyak 34 spesies, meliputi Kelas Bacillariophyceae, kelas Charophyta, kelas Chlorophyceae, kelas Cyanophyceae dan kelas Dinophyceae sedangkan jenis zooplankton ditemukan sebanyak 19 spesies, meliputi kelas Crustaceae, kelas Euglenaceae, kelas Protozoa, kelas Rotifer dan kelas Sacodina. Nilai kelimpahan plankton tertinggi pada stasiun 5 yaitu Muara Pela dengan 20853 ind/L, Kelimpahan fitoplankton tertinggi berasal dari genus Ulothrix aequalis kelas Chlorophyceae sebesar 26%. Hasil analisis indeks ekologi menunjukkan bahwa perairan Kota Bangun memiliki keanekaragaman dan keseragaman individu sedang, tidak ada spesies plankton yang dominan. Kondisi ini mengindikasikan ekosistem perairan yang relatif stabil dan memiliki daya tahan terhadap perubahan lingkungan dalam menerima perubahan lingkungan perairan, ekosistem perairan yang stabil serta tidak adanya jenis plankton tertentu yang mendominansi dalam komunitas. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/76394 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/24005 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200302 2020 eng " 2549-0885 1858-4748 dc ANALISIS HAMBATAN GESEK KAPAL MODIFIKASI DARI KAPAL JARING INSANG MENJADI KAPAL PANCING TONDA DI PALABUHANRATU (Evaluation of Ship Resistance from the Modification of Gillnets Vessel Into Troll Lines Vessel in Palabuhanratu) Iqbal, Muhammad Nur Departemen Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Institut Pertanian Bogor Imron, Mohammad Departemen Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Institut Pertanian Bogor Purwangka, Fis Departemen Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Institut Pertanian Bogor http://sinta2.ristekdikti.go.id/author/?mod=profile&p=stat Hambatan gesek; kecepatan; pancing tonda di Palabuhanratu; KM Untukmu Transformasi alat tangkap jaring insang ke pancing tonda adalah upaya untuk meningkatkan hasil tangkapan. Pergeseran alat tangkap ikan telah menyebabkan perubahan dalam metode penangkapan ikan, dan mempengaruhi pergerakan kapal. Saat ini nelayan memodifikasi bagian badan kapal, pemasangan mesin yang belum memasukkan standar perhitungan dalam pembangunannya. Penelitian ini bertujuan adalah untuk mengidentifikasi kemampuan mesin kapal saat beroperasi, dilihat dari hambatan gesek dan tenaga mesin kapal. Metode pengumpulan data yang digunakan dalam penelitian ini adalah accidental sampling. Data diambil menggunakan metode observasi langsung, pengukuran dimensi utama kapal, wawancara ke Nahkoda “KM Untukmu" dan studi pustaka. Data-data tersebut dianalisa dengan menggunakan metode Holtrop untuk mencari nilai hambatan gesekan kapal, metode Telfer untuk mengubah nilai resistensi menjadi nilai gaya propulsi dan metode Nomura dan Yamazaki untuk mencari nilai Brake Horse Power (BHP). Dimensi utama kapal yang diukur adalah tinggi (D), lebar (B), panjang garis air (lwl) dan draft (d). Hasil studi menyimpulkan bahwa, mesin utama “KM Untukmu” memenuhi persyaratan kecepatan yang dibutuhkan untuk melakukan operasi penangkapan ikan, yaitu 4-8 knot dan tinggi draft 1 meter dengan nilai hambatan gesek 257,96-920,64 Newton (N m/s) dan dengan nilai HP yang dibutuhkan berkisar 2,155-23,48 HP. Mesin utama “KM Untukmu" telah memenuhi kebutuhan yang diperlukan untuk melakukan operasi pancing tonda dan mampu bergerak hingga kecepatan 11,12-12,92 knot.   Transforming gill nets into troll line rods is an attempt to increase the number of catches. The shift of fishing gear has caused changes in fishing methods, this has affected the ship movements. Now fishermen are modifying ship’s body parts, machinery installation, and its main engine even though they didn’t include shipping calculation standard in its construction. This study objectives are identifying ship's engine performance during fishing operation, which seen from friction resistance and ship’s engine thrust. Data collection method used is direct sampling. Data taken using direct observation method, i.e. of the ship’s main dimensions measurements, Chief of “KM Untukmu” interviews and literature studies. Data analyzed using Holtrop method in order to find ship friction resistance value, and Nomura and Yamazaki method to calculate Brake Horse Power (BHP) value. Ship main dimensions measured are depth (D), breadth (B), length of water line (lwl) and draft (d). Study shows that KM Untukmu’s main engine meets speed requirements needed to carry out fishing operations, namely 4-8 knots and one meters draft height with friction resistance value of 257.96 – 920.64 Newton (N m/s) with HP value needed around 2.15 – 23.48 HP. “KM Untukmu” main engine has fulfilled troll line operation requirements and is capable in moving up the speeds up to 11.12 – 12.92 knots. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24005 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8096 2015-06-29T00:55:08Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc POTENSI DAN PELUANG PENGEMBANGAN USAHA PERIKANAN TANGKAP DI PANTURA JAWA TENGAH (Potency and Development Opportunity of Bussines Capture Fisheries in North Coastal of Central Java) Triarso, Imam Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan FPIK-UNDIP Potensi sumberdaya perikanan tangkap di Indonesia, termasuk di pantura Jawa Tengah terindikasi telah mengalami tangkap lebih (overfishing). Kondisi ini salah satunya disebabkan oleh tekanan penangkapan yang didominasi oleh perikanan tangkap skala kecil yang banyak beroperasi di perairan pantai. Oleh sebab itu, pengelolaan dan pemanfaatan sumberdaya perikanan tangkap di pantura Jawa Tengah ke depan sudah saatnya dilakukan rasionalisasi dan menentukan kebijakan yang berkaitan dengan peningkatan armada perikanan tangkap yang mampu beroperasi di lepas pantai yang masih memberikan peluang pengembangan usaha perikanan tangkap. Tujuan penelitian ini adalah untuk menganalisis seberapa tinggi potensi dan tingkat pemanfaatan sumberdaya perikanan tangkap di pantura Jawa Tengah dan peluang pengembangan usaha perikanan tangkap tersebut di masa yang akan datang. Metode yang digunakan dalam penelitian ini adalah metode survei dan observasi lapangan di masing-masing kabupaten/kota pantura Jawa Tengah sebagai daerah penerima bantuan kapal >30 GT yang meliputi Kabupaten Pekalongan, Kota Pekalongan, Kabupaten Batang, Kabupaten Pati, dan Kabupaten Rembang. Analisis data untuk menduga potensi dan peluang pengembangan usaha perikanan tangkap di waktu yang akan datang dilakukan dengan menggunakan model bioekonomi dari Gordon-Schaefer (Sparre and Venema, 1999) berdasarkan data time series produksi ikan dan upaya penangkapan dari tahun 2006-2009. Hasil penelitian menunjukkan potensi sumberdaya perikanan tangkap di pantura Jawa Tengah, termasuk di beberapa kabupaten/kota pantura Jawa Tengah terindikasi telah mengalami overfishing. Pemanfaatan sumberdaya perikanan tangkap yang overfishing tersebut terbukti tidak efisien, karena dengan tingkat upaya penangkapan lebih besar dari EMSY, namun hasil tangkapannya justru lebih kecil dibandingkan CMSY, di mana dalam kurun waktu 2006 – 2009 produksi perikanan di pantura Jawa Tengah berkisar 153,698-195,636 ton. Dengan kondisi potensi sumberdaya perikanan tangkap di pantura Jawa Tengah tersebut, maka program bantuan kapal sebesar >30 GT dari pemerintah yang diperuntukan untuk mengurangi tekanan perikanan tangkap merupakan peluang pengembangan usaha perikanan tangkap. Meski demikian perlu dilakukan perbaikan, terutama dalam hal spesifikasi kapal dan perlengkapannya serta peningkatan pelabuhan perikanan yang memadai untuk fishing base dari kapal-kapal tersebut sehingga tujuan peningkatan produksi dan kelestarian sumberdaya ikan dapat dicapai untuk meningkatkan pendapatan nelayan. Kata kunci: produksi perikanan, model bioekonomi, pengelolaan perikanan tangkap skala kecil.   The research on capture fisheries resources in north coastal of Central Java were to anticipate amount produce and effort of capture fisheries. Usefulness from this research expected to earn as reference of management of small scale fisheries and consideration alternative which can be taken for local government of Central Java Province. Primary data were collected from local fishers, while secondary data were collected from district and Marine and Fishery Services Central Java Province. Data series of 2006 to 2009 were also analyzed by bioeconomic analysis with surplus production model. The result indicate that condition of capture fisheries resources in North Coastal of Central Java were overfishing, included its several regency/city adjacent areas. The effort in developing fish capture has reached its boredom circumstance so this situation needs better maintenance and control toward the capturing activities. The policiy expected to minimize exploitation of fishery resources on coastal area, and the vessel can more further to off shore and oceanic area. The government as a policy maker on fisheries management for coastal fisheries must applicable precautionary approach by focusing on biology and economic aspects. Key words : fisheries product, bio-economic model, small scale fisheries management. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8096 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2717 2020-12-07T08:06:22Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc A REVIEW OF PEARL OYSTER (Pinctada maxima) CULTUREIN GENERAL Aji, Ludi Parwadani Tehnical Implementation Unit For Marine Biology Conservation,Research Centre for Oceanography, Indonesian Institute of Science (LIPI) Biak Papua Barat ABSTRACT                   Pearl oyster culture is unique because the product is gem not flesh and one of the species that produce pearl is Pinctada maxima (Silver or Gold lip pearl oyster). Stock for pearl oyster production can be collected from the wild or hatchery. However, hatchery production is a better solution to supply P.maxima for pearl production rather than just depend on wild stocks. Spat from the wild or hatchery will be grown-out for pearl production by longline or raft culture system method in ocean. Raft culture provide a work platform to repair, clean and store culture tools, while, longline culture has better design to deal with wave or wind exposure. There are identified different culture systems according different species (for example between P.maxima and P.fucata) and locations. Several constraints on P. maxima culture also identify such as biofouling organisms, predations and diseases that can reduce productivity and pearl quality. For example, mass mortalities of P.maxima occurred in Western Australia due to viral infection and it disrupted the pearl oyster industry. Therefore, several strategies are needed to mitigate those problems to achieve maximal productivity by using good management culture practice.       Key word: pearl oyster, P. maxima, management, culture Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2717 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/48196 2023-02-10T03:38:44Z saintek:RSA

nmb a2200000Iu 4500 "221028 2022 eng " 2549-0885 1858-4748 dc EFFECT OF COOKING METHODS ON THE REDUCTION OF LEAD (Pb) CONTENT IN KEPAH (Polymesoda erosa) SHELLS Warsidah, Warsidah Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak, Kalimantan Barat Sofiana, Mega Sari Juane Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak, Kalimantan Barat Yuliono, Agus Social Anthropology Department, Faculty of Social Science and Political Science, Universitas Tanjungpura Hartanti, Lucky Food Science and Technology Department, Faculty of Agriculture, Universitas Tanjungpura Gusmalawati, Dwi Biology Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura Safitri, Ikha Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak, Kalimantan Barat Risko, Risko Marine Science and Fisheries Department, Politeknik Negeri Pontianak Jannati, Jannati Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak, Kalimantan Barat Kepah; Polymesoda erosa; frying; boiling; lead (Pb) Kepah shells have important economic value and are widely used as food ingredients because they contain high nutritional content. Heavy metals that enter the waters will generally be accumulated in sediments and absorbed by biota. As filter feeder, Kepah accumulate heavy metals from the environment that toxic to humans. This study aimed to determine the effect of cooking methods on the concentration of lead (Pb) in Kepah shell. The measurement of Pb content was conducted according to SNI 2345.5-2011 by Atomic Absorption Spectrophotometer (AAS). Result showed that different cooking methods influenced the Pb content in Kepah shells. Frying and boiling processes reduced the Pb concentration of 46.34% and 31.48%, respectively. According to the result, frying suggested as the best cooking method to provide healthful food for consumption. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-11-24 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/48196 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 3 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/26390 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200810 2020 eng " 2549-0885 1858-4748 dc Sari, Sri Fatmah Universitas Muhammadiyah Kendari Said, Anwar Anwar, Lely Okmawaty Rosmawati, Rosmawati Nurdin, Iin Nurdiyanty Abalon Haliotis asinina dikenal dengan nama lokal Kerang Mata Tujuh, merupakan salah satu komoditas perikanan yang bernilai ekonomis tinggi yang terdapat dalam jumlah melimpah di Perairan Teluk Kendari, khususnya di Desa Tapulaga, Kabupaten Konawe. Ketersediaan data mengenai komponen bioaktif dari daging abalon dari hasil penelitian ini diharapkan dapat menjadi informasi pelengkap dalam  kegiatan pengembangan dan pengolahan abalon di daerah Sulawesi Tenggara. Sedangkan, kajian mengenai aktivitas antioksidan yang terdapat pada organ visera/jeroan abalon, diharapkan dapat menjadi pilihan dalam  pemanfaatan  hasil samping dari proses pengolahan abalon, yang nantinya bisa dikembangkan sebagai salah bahan antioksidan alami.  Penelitian ini dilakukan dengan beberapa tahapan, antara lain: Pengambilan sampel abalon di Desa Tapulaga, Kabupaten Konawe, Sulawesi Tenggara; Preparasi sampel;  Ektraksi sampel melalui metode maserasi dengan menggunakan pelarut metanol p.a;  Pengujian aktivitas antioksidan dan komponen senyawa bioaktif. Senyawa bioaktif yang terdeteksi pada ekstrak metanol daging maupun visera adalah flavonoid, saponin, alkaloid, dan fenol. Nilai senyawa fenol total dari ekstrak metanol visera sebesar 126,52µg/ml, nilai tersebut jauh lebih besar jika dibandingkan dengan nilai fenol total pada ekstrak metanol daging (77,26 µg/ml), hal ini berkorelasi dengan aktivitas antioksidan yang lebih berpotensi pada visera dibanding daging, dimana hasil pengujian aktivitas antioksidan dengan metode DPPH menunjukkan nilai IC50 ekstrak metanol visera dan daging abalon masing-masing 552,52 dan 632,92 µg/ml. Semakin kecil nilai IC50 pada suatu ekstrak menunjukkan aktivitas antioksidan yang makin tinggi.   Abalone Haliotis asinina known locally as Kerang Mata Tujuh , is one of  fisheries commodities that have a high economic value. This organisms found in abundance in the waters of Southeast Sulawesi, especially in Tapulaga Village, Konawe Regency. Availability of data on bioactive compound of abalone meat from this study is expected to be a supplementary information in the development and processing of abalone in Southeast Sulawesi. Meanwhile, a study of antioxidant activity found in viscera of abalone, is expected to be an option in utilizing byproducts from abalone processing, which can later be developed as one of natural antioxidant ingredients. This research was carried out in several stages, including: Sampling of abalone in Tapulaga Village, Konawe Regency, Southeast Sulawesi; Sample preparation; Sample extraction by maseration method using methanol p.a; and Analysis of antioxidant activity and bioactive compounds. Bioactive compounds detected in crude extract of meat and viscera were flavonoids, saponins, alkaloids, and phenols. Total phenol from viscera methanol extract was 126.52 µg / ml, this value was much greater than the total phenol in meat (77.26 µg / ml), so it correlates to antioxidant activity which has more potential on viscera compared to meat, where the results of antioxidant activity with the DPPH method showed IC50 values of viscera methanol extract and abalone meat respectively 552.52 and 632.92 µg / ml. The smaller the IC50 value in an extract indicates higher antioxidant activity. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/26390 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN ind Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8113 2015-06-29T15:12:13Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc EFEKTIVITAS SUBSTITUSI TEPUNG IKAN DENGAN TEPUNG MAGGOT DALAM PAKAN BUATAN TERHADAP PERTUMBUHAN DAN KELULUSHIDUPAN IKAN PATIN (The Effect of Substitution of Fish Meal with Maggot Meal in Artificial Feed for Growth And Survival Rate of Catfish) Rachmawati, Diana Program Studi Budidaya Perairan Jurusan Perikanan FPIK-UNDIP Samidjan, Istiyanto Program Studi Budidaya Perairan Jurusan Perikanan FPIK-UNDIP Penelitian ini bertujuan untuk mengkaji pengaruh subtitusi tepung ikan dengan tepung maggot terhadap petumbuhan dan kelulushidupan ikan Patin (Pangasius pangasius), serta untuk mengetahui persentase tepung maggot yang paling baik sebagai bahan alternatif pengganti tepung ikan.  Sebanyak 450 ekor ikan Patin (P. pangasius)  dengan bobot rata-rata 147.4+0.062 g dipelihara dalam 15 unit hapa (1m x 1 m x 1.2 m) dengan padat tebar 30 ekor hapa-1 dipelihara selama 56 hari. Pakan uji yang digunakan dalam penelitian ini adalah pakan buatan berbentuk pellet dengan kandungan protein 25% dengan persentase substitusi tepung ikan dengan tepung maggot sesuai dengan perlakuan. Ada 5 tingkatan kombinasi substitusi yaitu: 0%, 25%, 50%, 75%, dan 100% maggot segar dihitung dari bobot kering. Metode penelitian yang digunakan adalah metode eksperimen. Rancangan percobaan menggunakan Rancangan Acak Lengkap (RAL).  Hasil penelitian menunjukkan bahwa pakan uji dengan substitusi tepung ikan dengan tepung maggot persentase berbeda memberikan pengaruh yang sangat nyata (P < 0.01) terhadap  pertumbuhan mutlak, laju pertumbuhan spesifik, rasio konversi pakan dan tidak berpengaruh  nyata (P > 0.05) terhadap terhadap kelulushidupan ikan Patin (P. pangasius).  Hasil penelitian memberikan rataan pertumbuhan bobot mutlak akhir ikan Patin menurun dengan meningkatnya persentase substitusi tepung ikan dengan tepung maggot (147.63 g, 0%; 158.53 g, 25%: 142.76 g, 50%; 127.36 g, 75%; 126.10 g, 100%).  Sedangkan pertumbuhan (SGR) berkisar antara 1.22-1.38% hari-1, dengan konversi pakan (FCR) 2.61-2.98.  Dari hasil analisis ANOVA dapat disimpulkan bahwa untuk mandapatkan pertumbuhan bobot mutlak dan laju pertumbuhan spesifik (SGR) yang terbaik, maggot dapat menggantikan tepung ikan dalam pakan uji sampai 25%, dengan rasio konversi pakan (FCR) sebesar 2.61. Kata Kunci :  Maggot, pakan buatan,  substitusi, pertumbuhan, konversi pakan   The purpose of this study was to assess the effect of substitution of fish meal with maggot meal for growth and survival rate of  catfish (Pangasius pangasius), as well as to determine the best percentage of the Maggot meal on artificial feed for fish meal substitution. The total of 450 catfish with an average individual weight of 47.4+0.062 g were cultivated in 15 unit hapas with the dimension of 1m x 1m x 1,2m.  The density of catfish was 30 tails per hapa and nurtured for 56 days. The artificial feed for the experiment was formed as pellets and its protein content was 25%. The study had 5 reiterations of fish meal substitution on artificial feed with the Maggot meal.  There were 0%, 25%, 50%, 75%, and 100%. The research method used in this study was experimental method. The design of experiments was a complete random design. The results showed that artificial feed of Maggot meal on different reiterations significantly (P < 0.01) affected  on the absolute growth, the specific growth rate, and the feed conversion ratio; however, it did  not significantly (P > 0.05 ) affect on the survival rate of cafish (P. pangasius). The study also revealed that the percentage of Maggot meal subtituions negatively related to the weight of harvested average catfish, the higher the percentage of Maggot substituions the lower the weight of the average catfish  (147.63 g, 0%; 158.53 g, 25%: 142.76 g, 50%; 127.36 g, 75%; 126.10 g, 100%). Special Growth Rate (SGR) ranged from 1.22% to 1.38% per day with the Feed Conversion Ratio (FCR) between 2.61-2.98. Based on the ANOVA analysis the artificial feed of Maggot meal with 25% substitution gave the best effect on  both of the absolute and specific growth rate with the FCR of 2.61. Key words : Maggot meal, artificial feed, substitution, growth, food conversion Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8113 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/1103 2020-12-07T08:06:25Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Exploitation status of Lobster on Kebumen Waters Saputra, Suradi Wijaya staf pengajar PS. MSP, Jurusan Perikanan FPIK UNDIP http://ejournal.undip.ac.id/index.php/saintek The research of the exploitasion status of Lobster (Panullirus sp) was held on Kebumen waters Central Java. The objective research were to analysis of exploitation level and fishing season.of lobster. Samples was collected from August to September 2008, using survey methods. The study area were three TPI : TPI Pasir, TPI Argopeni and TPI Karangduwur. The results showed that Lobster caught occurred through the year, with fishing season from November to February, and peak season on December. Base on carapace length and weigh of Lobster, show that level of exploitation was indicated over-exploitation. Key word : Lobster, exploitation status, Kebumen waters Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/1103 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49257 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230426 2023 eng " 2549-0885 1858-4748 dc Jacinda, Adinda Kinasih Magister Ilmu Perikanan, Universitas Padjadjaran Anang, Asep Yustiati, Ayi Dirjen KKP mulai memberlakukan larangan penggunaan induk asal tambak sejak bulan Mei 2019 dan mewajibkan menggunakan indukan yang berasal dari breeding program. Penelitian ini bertujuan untuk mengetahui bentuk kurva pertumbuhan, mendapatkan model matematika yang paling tepat untuk menduga dan menggambarkan pertumbuhan calon induk udang vaname dan hasil persilangannya sehingga didapat hasil calon induk udang terbaik. Adapun model yang digunakan model Richards, MMF, Gompertz, Logistik dan Von Bertalanffy. Metode penelitian yang digunakan adalah metode studi kasus yang dianalisis secara deskriptif dengan objek penelitian yaitu udang vaname Galur G Jantan, Galur G Betina, Galur R Jantan, Galur R Betina, Hybrid GR Jantan, Hybrid GR Betina, Hybrid RG Jantan dan Hybrid RG Betina. Variabel yang diamati pada objek penelitian adalah bobot badan selama 201 hari. Data dianalisis menggunakan SAS, dibuat grafik serta kurva pertumbuhan, dilihat nilai koefisien korelasi (r) dan galat baku (Se) serta nilai heterosisnya. Hasil yang diperoleh yaitu (1) bentuk kurva pertumbuhan berbentuk sigmoid, dengan titik infleksi pada minggu ke 14, (2) model matematika kurva pertumbuhan terbaik adalah model Richards dan MMF dengan nilai koefisien korelasi yang tinggi (0,997-0,999) serta galat baru (standar error) yang rendah (±0,76 hingga ±1,18), (3) heterosis efek terbaik merupakan hasil persilangan jantan Galur G dan betina Galur R dengan presentase nilai heterosis untuk karakter bobot yaitu 17,24% dan 17,58%.   The Director General of KKP has started to enforce a ban on the use of broodstock from ponds since May 2019 and requires the use of broodstock from breeding programs. This study aims to determine the shape of the growth curve, obtain the most appropriate mathematical model to predict and describe the growth of prospective vannamei shrimp broodstock and the results of their crosses so that the best prospective shrimp broodstock results are obtained. The model used is the Richards, MMF, Gompertz, Logistics and Von Bertalanffy models. The research method used was the case study method which was analyzed descriptively with the research objects namely vaname shrimp Male G Line, Female G Line, Male R Line, Female R Line, Male GR Hybrid, Female GR Hybrid, Male RG Hybrid and Female RG Hybrid. The variable observed in the research object was body weight for 201 days. The data were analyzed using SAS, graphs and growth curves were made, the correlation coefficient (r) and standard error (Se) were seen and the heterosis value. The results obtained are (1) the shape of the growth curve is sigmoid, with an inflection point at week 14, (2) the best growth curve mathematical model is the Richards and MMF model with a high correlation coefficient value (0.997-0.999) and a new error (standard error) is low (±0.76 to ±1.18), (3) the best heterosis effect is the result of crosses of male G lines and R female lines with the percentage of heterosis values for character weights, namely 17.24% and 17.58%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49257 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/37570 2021-04-21T11:21:17Z saintek:RSA

nmb a2200000Iu 4500 "201031 2020 eng " 2549-0885 1858-4748 dc ANALYSIS OF BIOMASS AND STORED CARBON STOCK IN MANGROVE FOREST AREA, TAMAN HUTAN RAYA NGURAH RAI BALI Dewanti, Luh Putu Puspita Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Subagiyo, Subagiyo Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Wijayanti, Diah Permata Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Mangrove; Biomass; Carbon Stock Mangrove forests are transitional ecosystems between land and sea that occur mainly along tropical and subtropical coastlines. Ecologically, mangroves function as carbon sinks and stores, with most of them being allocated below the soil surface. It is possible that the increase in atmospheric CO2 that contributes to global warming can be reduced through the process of sequestration of carbon into the soil. The more carbon stored in the soil as soil organic carbon, it can reduce the amount of carbon in the atmosphere so that it can reduce global warming and climate change. SOC (Soil Organic Carbon) is distributed into various layers of soil, and its stability is also very diverse. The objectives of this research are:(1) Knowing the organic carbon storage below the soil surface in the mangrove forests of the Taman Hutan Raya Ngurah Rai and (2) Knowing the vertical variation of organic carbon stored in the soil in the mangrove forests of Taman Hutan Raya Ngurah Rai. The estimation of biomass using the method without harvesting by measuring diameter at breast height (DBH, 1.3 m) mangrove. Carbon deposits are estimated from 46% of biomass. The method used in this research is loss on ignition (LOI). The average distribution of soil organic carbon storage at a layer of 0 cm - 15 cm, 15 cm - 30 cm, 30 cm -50 cm, 50 cm -100 cm and  > 100 cm respectively is 84.18 ton C / ha, 90 , 43 ton C / ha, 93.39 ton C / ha, 115.70 ton C / ha and 80.75 ton C / ha. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/37570 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8327 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc Production Performance of African Catfish (Clarias gariepinus, burch) were Rearing with Biofloc technology Hastuti, Sri Staff pengajar pada Program Studi Budidaya Perairan, Jur. Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Subandiyono, Subandiyono Staff pengajar pada Program Studi Budidaya Perairan, Jur. Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Exploratory research to measure biological variables consisting of feed intake, feed utilization efficiency, feed conversion ratio (FCR), growth and survival of fish was done in the field, in Comal, Pemalang . The aims of the research were to assess the performance of the production as well as to assess the dynamics of the water quality and feed utilization efiiensi catfish (Clarias gariepinus, Burch) cultivated with biofloc technology.  The trial fish were reared in cement tanks at the density of 1,000 fish/m2. During maintenance periode, the fish were fed on the artificial diet containing protein of 30%, fat of 5%, fiber of 6%, mineral mix of 13%, and water of 13%. The trial feed was given by applying  ad satiation methode.  The data optain were analyzed descriptively, based on the tables, histograms, and charts provided. Water quality parameters were measured in every 2 weeks along the maintenance period. This study indicated that biofloc technology applied in the catfish (C. gariepinus) farming was able to increase the fish production, improve the feed utilization efficiency, and reduced feed conversion rate. This technology was also able to improve the water quality and increase the survivors of the trial fish. By Applying biofloc technology could support  the catfish life until the density  of 1,000 fish/m2. Keywords : catfish, biofloc, production, growth, feed, efficiency  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8327 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2079 2014-04-25T17:01:16Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Development Strategy of Yellow Tail Fusilier Fish (Caesio cuning) Resources Management on Coral Ecosystem in The Seribu Islands Zamani, Neviaty P Staf Pengajar Departemen Ilmu dan Teknologi Kelautan FPIK IPB Wardiatno, Yusli Staf Pengajar Departemen Pengelolaan Sumberdaya Pesisir dan Lautan FPIK IPB. Nggajo, Raimundus Staf pada Direktorat Pesisir dan Lautan Ditjen KP3K DKP RI Population of Yellow tail fusilier fish (Caesio cuning) in Seribu Islands at this time has decreased. The main cause of decreasing in abundance of the fish is due to degradation of coral reef ecosystem as a habitat of the fish. The purposes  of the study is  to examine the association of  Yellow tail fusilier fish resources with habitat characteristics. The study was conducted in the Seribu Islands waters on May 2009, at the four islands, each consisting of two observation locations. Percentage benthic  substrate cover, and the number of coral lifeform using the Square Transect method, while to see the abundance of the fish resources using Underwater Visual Cencus. Benthic substrate cover was dominated by abiotic cover (36.42%), hard coral cover was in fair condition (32.27%), dominated by foliose coral, massive coral, acropora branching and encrusting coral. The abundance of Yellow tail fusilier fish was 67 individu/250 m2. North Pramuka, West Panggang, and South Panggang was only observed some small fishes. Closing area can be implemented for management purposes with the combination of introducing brooder.  In vise versa East Pramuka and East Kayu Angin have been observed only adult fishes. Closing area can be implemented for management purposes with the combination of introducing juveniles. In West Kayu Angin closing area can be implemented to give the opportunity juvenile for growing and adult for breading.  South Belanda have all range of size fishes as well as good condition of habitat. It is therefore, this can be developed as marine protected area with eco-freienly marine tourism activities. Keywords: coral reef ecosystem, fish resources, yellow tail fusilier fish, habitat linkages, Seribu islands. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2079 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/59937 2025-05-15T10:46:39Z saintek:RSA

nmb a2200000Iu 4500 "231231 2023 eng " 2549-0885 1858-4748 dc BUSINESS ANALYSIS OF MUD CRAB (Scylla spp.) FISHING IN BANDENGAN WATERS KENDAL REGENCY Hogantoro, Ega Heidar Departement of Capture Fisheries, Faculty Fisheries and Marine Science, Diponegoro University, Tembalang, Semarang, Central Java, Indonesia. Dewi, Dian Ayunita Nugraheni Nurmala Departement of Capture Fisheries, Faculty Fisheries and Marine Science, Diponegoro University, Tembalang, Semarang, Central Java, Indonesia. Hapsari, Trisnani Dwi Departement of Capture Fisheries, Faculty Fisheries and Marine Science, Diponegoro University, Tembalang, Semarang, Central Java, Indonesia. Financial; Folding trap; Gill net; Mud crab Kendal Regency is one of the areas in northern Central Java which has potential resources for mud crabs (Scylla spp.). Communities in Kendal Regency use folding traps and gill nets to catch mud crabs (Scylla spp.). The catching activities of mud crabs in Bandengan waters Kendal are carried out all the time, without providing a recovery period on the ecosystem cycle at the fishing location. This study aims to analyze the technical and financial feasibility of catching mud crabs using folding traps and gill nets. The method used in this research is descriptive method with a survey approach. Data collection methods used are direct observation, interviews, literature and documentation. The analytical method used is break even point analysis, R/C ratio, B/C ratio, and payback period. The results showed that folding traps and gill nets are feasible to run because folding traps have a BEP value of IDR 43,286 (<sale price); production BEP value of 333 kg/year (<production/year); value of R/C ratio 1.38 (> 1); the B/C ratio value is 0.38 (> 0); PP value for 1 year 7 months while gill net has a BEP value of IDR 41,480 (<sale price); production BEP value of 313 kg/year (<production/year); value of R/C ratio 1.45 (> 1); the B/C ratio value is 0.45 (> 0); PP value for 1 year 6 month. Gill nets is more feasible to run than folding traps because it has a higher R/C ratio and B/C ratio than folding traps. Then the BEP and PP values is lower if it as compared with folding traps. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-12-29 08:03:59 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/59937 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 4 (2023): SAINTEK PERIKANAN eng Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33838 2021-11-30T12:01:21Z saintek:RSA

nmb a2200000Iu 4500 "210420 2021 eng " 2549-0885 1858-4748 dc SOFT CORAL Sinularia gibberosa EXTRACTS ORIGIN PALU BAY, CENTRAL SULAWESI WITH ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY Muliadin, Muliadin Sekolah Tinggi Perikanan dan Kelautan Palu - STPL Palu (Institute of Fisheries and Marine) Dewanto, Didit Kustantio Sekolah Tinggi Perikanan dan Kelautan Palu - STPL Palu (Institute of Fisheries and Marine) Hermawan, Roni Sekolah Tinggi Perikanan dan Kelautan Palu - STPL Palu (Institute of Fisheries and Marine) Riyadi, Putut Har Department of Fisheries Post Harvest Technology, Faculty of Fisheries and Marine Science, Universitas Diponegoro http://orcid.org/0000-0003-2940-4108 Tanod, Wendy Alexander Department of Fisheries and Marine, Politeknik Negeri Nusa Utara, Tahuna, North Sulawesi https://scholar.google.com/citations?authuser=4&user=jPWpX40AAAAJ http://orcid.org/0000-0002-7514-3538 Bioactive compounds; Listeria monocytogenes; soft coral; Pseudomonas aeruginosa; Salmonella typhimurium Sinularia gibberosa is one of the soft coral species reported to produce bioactive compounds for pharmaceutical’s potential. Soft corals produce compounds with antibacterial and antioxidant properties. This study aimed to obtain a bioactive profile of S. gibberosa, which could scavenge DPPH radicals and inhibit the growth of Listeria monocytogenes, Pseudomonas aeruginosa, and Salmonella typhimurium. The research included a sampling of soft corals, extraction by maceration, identification of chemical profiles using LC-HRMS, the assay for antibacterial activity (well-diffusion method), antioxidant assay (DPPH method), and total phenolic content (Folin–Ciocalteu method). Sampling was conducted in Palu Bay, Central Sulawesi, Indonesia. Based on monomorphic colonies and sclerites, soft coral samples were identified as Sinularia gibberosa. The chemical profiles of S. gibberosa extracts was dominated by trimethylethanolamine (22.03%), arachidonic acid (14.13%), (3R)-3-hydroxy-4-(trimethylazaniumyl)-butanoate (10.90%), (5Z,8Z,11Z,14Z,16R)-16-Hydroxy-5,8,11,14-icosatetraenoic acid (5.64%), Octyl decyl phthalate (4.18%), and N-Methylnicotinic acid (3.63%). The antibacterial assaying at 300 mg/mL of S. gibberosa extracts showed moderate to strong antibacterial activity, with the inhibition zone diameter of L. monocytogenes (15.11 ± 0.70 mm), P. aeruginosa (13.44 ± 0.84 mm), and S. typhimurium (19.78 ± 0.39 mm). S. gibberosa extracts showed strong antioxidant activity, with an IC50 of 54.69 ± 0.34 µg/mL and total phenolic content was 5423.76 ± 14.00 mg GAE/25 mg dry extract. Based on the results, S. gibberosa shows the potential for antibacterial and antioxidant activity. This study indicates that soft corals origin Palu Bay, Central Sulawesi, Indonesia, are potential organisms in the discovery and development of antibacterial and antioxidant agents. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33838 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/10555 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150825 2015 eng " 2549-0885 1858-4748 dc ANALISIS EKONOMI ALAT TANGKAP FYKE NET MODIFIKASI (STUDI KASUS DI PERAIRAN REMBANG, JAWA TENGAH) Economic Analysis Fyke Net Modification (Case Study in Rembang Waters, Central Java) Fitri, Aristi Dian Purnama Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Asriyanto, Asriyanto Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Pramonowibowo, Pramonowibowo Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK Fyke net merupakan alat penangkapan statis yang dioperasikan di sekitar pantai. Modifikasi Fyke net dengan sudut kemiringan sayap 45 derajat dan penambahan penaju, bertujuan untuk meningkatkan efektivitas penangkapan. Tujuan dilaksanakannya penelitian adalah untuk menganalisis perbedaan hasil tangkapan, menganalisis aspek ekonomi (Pendapatan, Biaya, Keuntungan dan R/C  Ratio) dari modifikasi Fyke net. Metode yang digunakan dalam penelitian ini adalah metode experimental fishing. Metode analisis yang digunakan adalah analisis Anova dan analisis ekonomi. Dari hasil penelitian diketahui bahwa hasil tangkapan usaha penangkapan modifikasi Fyke net berpenaju lebih besar (10.122 kg)  dibandingkan dengan hasil tangkapan Fyke net kontrol (2.560 kg) dan modifikasi Fyke net dengan sudut kemiringan sayap 75 derajat (1.735 kg). Nilai pendapatan modifikasi Fyke net berpenaju lebih banyak dibandingkan pendapatan dari Fyke net (kontrol) dan modifikasi Fyke net tanpa penaju. Nilai R/C ratio dari kedua jenis modifikasi alat tersebut lebih dari 1 sehingga efisien untuk terus dijalankan.   Kata kunci : Analisis ekonomi; Modifikasi Fyke net; Perairan Rembang   ABSTRACT  Fyke net is static fishing gear which is operated around the coastal area. Modifications Fyke net with a slope angle of 45 degrees and additional wings and leader, aims to improve the effectiveness of the arrest. The objective of the study was to analyze differences in the catch, analyze the economic aspects (Revenues, Expenses, Gains and R/C Ratio) of modification Fyke net. The method used in this study is the experimental fishing. The analytical method used was ANOVA analysis and economic analysis. The survey results revealed that the catches of fishing effort modifications leader greater Fyke net (10122 kg) compared to control catches Fyke net (2560 kg) and modified Fyke net with wing tilt angle of 75 degrees (1735 kg). Fyke net income value modification leader more than Fyke net income of (control) and modifications without leader. R/C ratio of the two types of modification of the tool more than score 1 (one) so efficiently to continue to run.  Keywords : Economic analysis, Fyke net modification, Rembang water  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/10555 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2784 2012-03-28T14:35:07Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc The Controlling of “Ice-ice” Disease to Increase Seaweeds Production in Indonesia Santoso, Limin Jurusan Budidaya Perairan, Fakultas Pertanian,Universitas Lampung Jl. Prof. Soemantri Brojonegoro No.1 Bandar Lampung 35145 Nugraha, Yudha Tri Jurusan Budidaya Perairan, Fakultas Pertanian,Universitas Lampung Jl. Prof. Soemantri Brojonegoro No.1 Bandar Lampung 35145 The potensi of sea weeds farming development in Indonesia is very big, because of large suitable locations, high sea weeds variety, simple technology and small capital relatively. But now this effort facing serious problem that caused by ice-ice disease. That disease usually happen when rainy (October-April) and catching becaused bacterium and the effect of more old the sea weeds and less nutrition. Ice-ice was signed by red pocks then yellow, white and then moults. The change environment suddenly such us salinity, temperature and light intensity were main factor that triggers ice-ice. Pseudoalteromonas gracillis, Pseudomonas spp. and Vibrio spp can isolated from sea weeds that attackted. Remember that disease is so harm, so need to do efforts to solve that problem. One of sollution is do the right and consistent of standard operating procedure (SOP) in sea weeds farming. This SOP consist of three stages, choose suitable locations, qualified sea weed seeds and use sitable technology. Wish the lost of economic will be minimal with applying this SOP. Keywords : Controlling, ice-ice disease, increases production, sea weeds Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2784 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/48463 2025-04-15T08:29:33Z saintek:RSA

nmb a2200000Iu 4500 "240831 2024 eng " 2549-0885 1858-4748 dc Hasna, Salma Khoironnida Departemen Akuakultur, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Sarjito, Sarjito Haditomo, Alfabetian Harjuno Condro Nurhayati, Dewi Desrina, Desrina Prayitno, Slamet Budi Bakteri Aeromonas hydrophila adalah patogen penyebab penyakit Motile Aeromonas Septicemia (MAS) pada ikan mas dan umum dijumpai di Indonesia. Pengendalian bakteri ini dilakukan dengan menggunakan bahan kimia dan antibiotik yang dikhawatirkan dapat membahayakan lingkungan budidaya dan konsumen yang mengonsumsi ikan tersebut. Oleh karena itu, diperlukan bahan alami yang ramah lingkungan, dapat menghambat pertumbuhan bakteri, serta efektif menyembuhkan penyakit MAS. Lidah buaya (Aloe vera) adalah salah satu bahan alami yang dapat digunakan sebagai obat ikan karena memiliki aktivitas antibakteri yang mampu mengobati ikan mas dari infeksi A. hydrophila. Penelitian ini bertujuan untuk mengetahui efek ekstrak lidah buaya sebagai antibakteri, serta pengaruhnya terhadap status kesehatan ikan mas yang terinfeksi A. hydrophila. Efek antimikroba ditentukan secara in vitro dengan metoda cakram dan dilanjutkan dengan bioassay (empat perlakuan dan tiga kali ulangan) dengan merendam ikan mas yang sudah diinfeksi A. hydrophila dalam ekstrak lidah buaya dengan dosis sebagai berikut, perendaman ikan 0 ppm (A), 250 ppm (B), 500 ppm (C), dan 750 ppm (D). Data yang dikumpulkan meliputi ukuran zona hambat, gejala klinis, jumlah A. hydrophila, profil darah, bobot mutlak, SGR, kelulushidupan, dan kualitas air. Ekstrak lidah buaya menghasilkan diameter zona hambat berkisar antara 7,33-11,02 mm. Perendaman dengan ekstrak lidah buaya berpengaruh nyata terhadap jumlah bakteri, profil darah, pertumbuhan, namun tidak berpengaruh nyata terhadap kelulushidupan ikan mas. Perlakuan D (dosis ekstrak lidah buaya 750 ppm) memberikan hasil terbaik dari semua parameter yang diukur.   Aeromonas hydrophila is common carp pathogen that cause Motile Aeromonas Septicemia (MAS) disease and commonly found in Indonesia. Control of this bacteria is carried out using chemicals and it is worried that they can harm aquaculture environment and consumers who consume the fish. Therefore, it is required natural ingredients that are environmentally friendly, can inhibit bacterial growth, and effectively cure MAS. Aloe vera is one of the natural ingredients that can be used as fish medicine because it has antibacterial activity which is expected to be able to treat carp from A. hydrophila infection. This study aims to determine the effect of aloe vera extract as an antibacterial, and its effect on the health status of common carp that attacked by A. hydrophila. The antimicrobial effect was determined in vitro using disc method and continued by bioassay (four treatments and three replications) by immersing carp that infected by A. hydrophila in aloe vera extract with immersion doses of 0 ppm (A), 250 ppm (B), 500 ppm (C), and 750 ppm (D). The data collected included the size of inhibition zone, clinical symptoms, number of bacteria, blood profile, absolute weight value, SGR, SR, and water quality. Aloe vera extract produces inhibition zone diameters from 7,33-11,02 mm. Immersion in aloe vera extract had significant effect on the number of bacteria, blood profile, growth, but had no significant effect on the survival rate of common carp. Treatment D (dose of aloe vera extract 750 ppm) gave the best results from all parameters measured. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/48463 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 2 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/42356 2021-12-03T00:57:43Z saintek:RSA

nmb a2200000Iu 4500 "211126 2021 eng " 2549-0885 1858-4748 dc SUSTAINABILITY STATUS ANALYSIS OF ESTUARIAN MANAGEMENT (CASE STUDY: KUALA TRIPA ESTUARIAN WATERS) NAGAN RAYA REGENCY Edwarsyah, Edwarsyah Aquatic Resources Study Program of Universitas Teuku Umar https://orcid.org/0000-0002-5524-7639 Zurba, Nabil Aquatic Resources Study Program of Universitas Teuku Umar Syahida, Putri Faza Aquatic Resources Study Program of Universitas Teuku Umar Selamat, Muhammad Banda Marine Science Study Program of Universitas Hasanuddin Estuary;sustainability, RAPFISH  The damage in Kuala Tripa Estuary needs sustainable management. This study is aim to determine the sustainability status of the ecological, social, economic, technological and institutional dimension as well as alternative directions for development policies in sustainable management of the Kuala Tripa estuary. This study uses a descriptive approach with the maintenance of survey methods and case studies. The study was conducted from May to July 2021. A total of 11 respondents were selected using purposive sampling and proportional sampling methods. Water quality measurements were also conducted (Salinity, dissolved oxygen, pH, temperature, BOD and COD) at three station points. To test the water quality, BOD (Bisolved Oxygent Demand) and COD (Chemical Oxygent Demand) were analyzed at the Aceh Health Laboratory. The data were analyzed using RAPFISH (Rapid Apprasial for Fisheries) software. The measured attributes are the ecological, social, economic, technological and institutional dimensions. The status of the Multi-Dimensional Scaling estuarine sustainability index status of Kuala Tripa is quite sustainable with a score of 55.41. The most sensitive attributes from the leverage analysis are used to identify efforts (policy recommendations) through the AHP (Analytical Hierarchy Process) method. The first alternative is water extension policy with a priority value of 0.29. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/42356 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/70968 2025-04-15T08:09:35Z saintek:RSA

nmb a2200000Iu 4500 "241231 2024 eng " 2549-0885 1858-4748 dc SHARK SPECIES COMPOSITION AND DISTRIBUTION OF FISHING GROUND BASED ON FISHING GEAR IN CILACAP OCEAN FISHERY PORT Novianto, Dian National Research and Innovation Agency https://brin.go.id/orkm/pusat-riset-perikanan/page/pelagis-besar-dan-elasmobranch https://orcid.org/0000-0002-9530-8205 Widiarto, Santoso Budi Coastal and Sea Resource Management Loka Serang Muslim, Anhar Coastal and Sea Resource Management Loka Serang Aji, Miftah Wahyu Purnomo Coastal and Sea Resource Management Loka Serang Prakoso, Kukuh Aquatic Resources Department, Faculty of Fisheries Management, Universitas Diponegoro Shark species; fishing gear; fishing grounds. This study focuses on shark species composition, fishing techniques, and geographical distribution in the South Java Waters of Cilacap Ocean Fishing Port (COFP) during 2023. From the data collected, 18 shark species from 8 families were landed, with Alopias superciliosus as the dominant species (29%), followed by Carcharhinus falciformis (25%), and Alopias pelagicus (18%). Shark fishing was conducted with various gears such as tuna longline, drift longline, longline, drift gillnet, and bottom gillnet, with drift longline being the most effective gear with the largest contribution to the catch. Most of the sharks caught were categorized as endangered (EN) and vulnerable (VU) based on the IUCN conservation list, and listed in Appendix II of CITES. The results show that the geographic distribution of shark fishing grounds covers a wide area from the coast to the Indian Ocean, with high concentrations in the waters around Kebumen to the south of Yogyakarta. Fishing activities often overlap between fishing gears, increasing the risk of overfishing. Length distributions and maturity rates of sharks also indicate that many mating-ready adults are being caught, threatening slow population regeneration. To ensure the sustainability of shark populations and maintain the balance of marine ecosystems, a holistic and data-driven management strategy is needed. This includes strengthening regulations, raising public awareness through conservation education, and developing collaborative approaches involving fishers, government, and conservation organizations. Consistent law enforcement is also key in minimizing violations and ensuring the sustainability of shark fisheries in Indonesia. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-31 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/70968 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 4 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11145 2020-04-17T19:23:11Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc STUDI BACILLUS FIRMUS SEBAGAI KANDIDAT PROBIOTIK DALAM MENGHADAPI Aeromonas hydrophila PADA MEDIA BUDIDAYA The Study of Bacillus firmus as Probiotic Candidate in Supressing Aeromonas hydrophila in Culture Media Haditomo, Alfabetian Harjuno Condro Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Lusiastuti, Angela Mariana Balai Riset Penelitian Budidaya Air Tawar Sempur Bogor Widanarni, Widanarni Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Institute Pertanian Bogor Bacillus firmus; probiotik; Aeromonas hydrophila; media budidaya   Pengendalian penyakit bakterial yang umum dilakukan dengan pemakaian antibiotik atau  bahan kimia sudah tidak diperbolehkan lagi karena menimbulkan patogen yang resisten  terhadap bahan kimia tersebut, terlebih jika penggunaan tidak sesuai dengan anjuran yang diberikan. Dampak negatif terhadap kesehatan konsumen berupa residu antibiotik juga menjadi pertimbangan yang harus diperhatikan. Manipulasi terhadap populasi mikroba yang berada di perairan guna pencegahan sebelum terjadinya serangan bakteri yang bersifat mematikan perlu dilakukan sebagaimana konsep probiotik sebagai biokontrol. Tujuan penelitian ini adalah menguji kandidat probiotik dalam menekan atau menghambat bakteri patogen Aeromonas hydrophila. Penelitian ini dilaksananakan dalam dua tahap. Tahap pertama adalah tahap pengujian bakteri kandidat probiotik secara in vitro menggunakan metode zona hambat dan kultur bersama pada media agar.  Tahap kedua adalah uji tentang bakteri kandidat probiotik dengan patogen pada media budidaya. Hasil terbaik penelitian tahap pertama pada  uji kultur bersama antara kandidat probiotik B. firmus dengan A. hydrophila pada skala in vitro adalah dengan penambahan probiotik  B. firmus sebanyak 108 cfu/ml. Sedangkan pada penelitian tahap kedua didapatkan hasil berturut-turut perlakuan D dengan tingkat kelangsungan hidup (SR) mencapai 90%, perlakuan C dengan SR 75%, perlakuan A dengan SR 50% dan perlakuan K dengan SR 50%.    Controlling bacterial disease with the use of antibiotics or chemicals is no longer allowed as it results in pathogens that are resistant to the chemicals, especially when not in accordance with the recommendations provided. The negative impactsof the antibiotics residues on the consumers’ health  also need to be considered. Manipulation of microbial populations present in the waters as preventation before the lethal attack of bacteria needs to be done which is in accordance with the concept of probiotics as biocontrol.The purpose of this study was to test the probiotic candidates in suppressing or inhibiting pathogenic bacteria Aeromonas hydrophila. This study was conducted in two stages. The first stage was to test a candidate probiotic bacteria in vitro using culture methods and inhibition zone on the media together. The second stage wasto test candidate probiotic bacteria to pathogens on the cultivation media. The best results in the first phase of the research is shared culture test between probiotic candidate B. FIRMUS with A. hydrophila on vitro scale is the addition of the probiotic B. FIRMUS 108 cfu / ml. While in the second phase of the research results obtained successively: treatment D with a survival rate (SR) reaches 90%, treatment C with SR 75%, treatment A with SR 50% and treatment K with SR 50%.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11145 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/6766 2025-04-26T12:34:22Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc The Effect of Leaching Times on the Gel Properties of Catfish (Clarias gariepinus) Surimi Wijayanti, Ima Staf Pengajar Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Santoso, Joko Staf Pengajar Departemen Teknologi Hasil Perairan Pascasarjana Institut Pertanian Bogor (IPB) Jacoeb, Agus M. Staf Pengajar Departemen Teknologi Hasil Perairan Pascasarjana Institut Pertanian Bogor (IPB) The effect of leaching times on the proximate composition and gel properties of surimi has been studied in this research. Leaching times significantly influenced the chemical composition of catfish surimi. The raise of leaching times increased the water content and decreased protein, fat and minerals composition of catfish surimi. Water holding capacity value of surimi gel by leaching 3 times increased 29.78% compared to leaching one time. Deformation increased with the rising of leaching times. The highest deformation was  reached by leaching 4 times with raising 74.27% compared to leaching one time. Result of sensory evaluation indicated that the rising of leaching times had positive impact in folding test and teeth cutting test. Three  and four times of leaching produced better characteristics of the gel rather than leaching 1 and 2 times.   Keywords: cat fish, gel properties, leaching times, surimi Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6766 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/35669 2022-04-19T17:13:22Z saintek:RSA

nmb a2200000Iu 4500 "220325 2022 eng " 2549-0885 1858-4748 dc Wafi, Abdul Ariadi, Heri Pekalongan University http://ub.edu/heri http://orcid.org/0000-0003-4828-0753 Sebanyak 15% biaya produksi budidaya udang digunakan untuk konsumsi energi listrik oleh penggunaan kincir air, selain itu penggunaan kincir air juga merupakan faktor kunci yang menentukan dalam keberhasilan budidaya udang. Tujuan dari penelitian ini adalah untuk mengetahui estimasi daya tenaga listrik yang dibutuhkan untuk produksi oksigen terlarut oleh penggunaan kincir air selama periode budidaya “Blind Feeding” udang vaname (L. vannamei). Metode penelitian yang digunakan adalah metode riset lapang dengan mengamati variabel parameter kualitas air (pH, suhu, Oksigen terlarut, salinitas), laju difusi oksigen pada kincir air, laju pertumbuhan udang, dan estimasi tingkat kebutuhan listrik untuk operasional kincir air yang dilakukan selama 30 hari awal masa budidaya intensif udang vaname. Hasil penelitian menunjukan kondisi parameter kualitas air selama masa budidaya cenderung stabil dan sesuai dengan kriteria baku mutu kualitas air untuk budidaya udang. Laju pertumbuhan udang harian rata-rata sebesar 1.21 gr/hari dan memiliki hubungan korelatif terhadap tingkat produksi oksigen oleh difusi kincir air dengan membentuk model persamaan Y = 4.769 + 0.344x. Sedangkan jumlah estimasi daya listrik yang dibutuhkan untuk mengoperasikan kincir air sepanjang periode blind feeding berkisar antara 0.97-1.07 kW yang berfluktuasi mengikuti efektifitas tingkat produksi oksigen di perairan tambak. Selama periode blind feeding budidaya udang intensif jumlah estimasi daya listrik yang dibutuhkan untuk mengoperasionalkan kincir air dengan kapasitas 2 HP dibutuhkan energi listrik antara 0.97-1.07 kW yang berfluktuasi secara osilatif sepanjang periode blind feeding budidaya udang vaname berlangsung.   15% of shrimp culture production cost is used for electricity consumption by paddle-wheels aerator operation, in addition, the use of paddle-wheel aerator is also a key determining factor in shrimp farming. The purpose of this study was to determine the estimated electric power required for dissolved oxygen production by the use of a paddle-wheel aerator during the "Blind Feeding" period of vaname shrimp (L. vannamei). The research method used with the field research method by observing the variable water quality parameters (pH, temperature, dissolved oxygen, salinity), oxygen diffusion rate in paddle-wheel aerators, shrimp growth rate, and estimation of the level of electricity demand for paddle-wheel aerator operations during the initial 30 days of intensive shrimp culture. The results showed that of water quality parameters condition during the cultivation period tended to be stable and in accordance with the water quality standard criteria for shrimp culture. The daily shrimp growth rate an average of 1.21 g/day and has a correlative relationship with the level of oxygen production by paddle-wheel aerators diffusion by forming the equation model Y = 4.769 + 0.344x. Meanwhile, the estimated amount of electric power needed to paddle-wheel aerators operate during the blind feeding period ranges from 0.97-1.07 kW which fluctuates following by oxygen production rate effectiveness in pond waters. During the blind feeding intensive shrimp farming periods, the estimated amount of electrical power require to operate of 2 HP paddle-wheel aerators capacity need electrical energy between 0.97-1.07 kW which fluctuates oscillatively throughout the blind feeding periods. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/35669 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/71440 2025-08-04T07:38:07Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Silaban, Jecky Ramdhani, Farhan Universitas Jambi https://scholar.google.com/citations?user=GVgM2rcAAAAJ&hl=en https://orcid.org/0000-0001-9099-7980 Nurhayati, Nurhayati Mairizal, Mairizal Ramadan, Fauzan Pangentasari, Dwinda Struktur komunitas ikan demersal menggambarkan komposisi serta hubungan antarspesies ikan dasar laut yang hidup di suatu ekosisitem perairan. Pemahaman tentang struktur komunitas ikan demersal diperlukan sebagai dasar pengelolaan sumber daya perairan yang berkelanjutan. Penelitian ini bertujuan untuk mengidentrifikasi struktur komunitas ikan demersal di perairan Pantrai Barat Provinsi Sumatera Utara, meliputi Kabupaten Tapanuli Tengah dan Kabupaten Nias Selatan. Pengambilan data dilakukan pada 28 Oktober-25 November 2024. Metode yang digunakan adalah metode survei dan observasi yang melibatkan 114 unit bubu kawat selama 14 hari penangkapan dengan total organisme tertangkap sebanyak 1.626 ekor dengan berat 1.306,81 kg. Analisis data mencakup komposisi hasil tangkapan (utama, sampingan dan buangan), indeks keanekaragaman, keseragaman, dominansi, dan frekuensi kemunculan. Hasil penelitian menunjukkan terdapat 33 spesies ikan yang tertangkap. Hasil tangkapan utama memperoleh persentase dalam berat (44,1%), dan ekor (30%). Hasil tangkapan sampingan memperoleh persentase dalam berat (52,5%), dan ekor (64,5%). Hasil tangkapan buangan memperoleh persentase dalam berat (3,4%), dan ekor (5,6%). Organisme yang tertangkap memiliki nilai indeks keanekaragaman sedang (2,80), keseragaman tinggi (0,80), dan dominansi rendah (0,10). Berdasarkan nilai indeksnya dan secara ekologis mengindikasikan bahwa situasi maupun kondisi di perairan berada dalam keadaan stabil dan juga lingkungan yang mendukung. Frekuensi kemunculan tertinggi adalah ikan ayam-ayam biasa (Abalistes stellaris) 48,2%, dan terendah ikan pepetek (Leiognathus sp.) 4,4%. Disimpulkan bahwa organisme ikan demersal yang tertangkap pada bubu kawat mencakup 33 spesies ikan demersal, dengan 7 spesies sebagai hasil tangkapan utama, 23 spesies sebagai tangkapan sampingan, dan 3 spesies sebagai tangkapan buangan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71440 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13194 2020-04-17T19:24:57Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc DAMPAK IMPLEMENTASI PERMEN KP No. 1 TAHUN 2015 TERHADAP KONDISI SOSIAL EKONOMI NELAYAN DI JAWA TENGAH Impacts of Implementation PERMEN KP No. 1 Tahun 2015 to Social Economic Fisher Condition in Central Java Triarso, Imam Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Wibowo, Bambang Argo Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Dampak; Permen KP No. 1/2015; Nelayan Lobster dan Rajungan   Diberlakukannya Permen KP No. 1 Tahun 2015 tentang Penangkapan Lobster (Panulirus spp),  Kepiting (Scylla spp) dan Rajungan (Portunus pelagicus) dengan tujuan untuk mengelola potensi sumberdaya Crustacea, disebabkan adanya fenomena semakin turunnya produksi Crustacea dan semakin kecilnya ukuran yang ditangkap. Tujuan penelitian ini adalah  untuk mengetahui dampak implementasi Permen KP No. 1/2015 tersebut terhadap kondisi sosial ekonomi nelayan di sentra penangkapan Lobster di Kabupaten Kebumen dan sentra penangkapan Rajungan di Kabupaten Demak dengan menggunakan metoda skoring. Hasil penelitian menunjukkan bahwa implementasi Permen KP No. 1/2015 ternyata berdampak positif terhadap nelayan Lobster di Kabupaten Kebumen dilihat dari segi nilai ekonomi nilai sosial. Namun, berbeda halnya dengan nelayan Rajungan di Kabupaten Demak, dimana kurang berdampak positif, baik nilai ekonomi maupun nilai sosial. Kondisi yang terjadi di Kabupaten Demak tersebut dikarenakan oleh ulah para bakul pengumpul/pengepul yang masih tetap membeli Rajungan, meskipun kondisinya bertelur dan ukurannya kecil. Selain itu, tidak diimbanginya pengawasan atau tindakan hukum bagi para pelanggar Permen KP No. 1/2015 tersebut sehingga telah menimbulkan adanya kecemburuan sosial antar nelayan setempat dan luar daerah.    The implementation of the PERMEN KP No. 1 Tahun 2015 with the aim to review manage resource potential Crustaceans, due to the phenomenon of the decline in production Crustaceans and captured the increasingly smaller sizes. Research objectives to know impact of  implementation Permen KP No. 1/2015 to Socio-Economic Fisher Conditions in Central of Java, especially at the center catching Lobster fishers in Kebumen District and center catching Crab in Demak District with using scoring method. The results showed that the implementatioo of Permen KP No. 1/2015 turned positive impact Lobster fishers in Kebumen District, seen view of economic value and social value. However,with different well asCrab in Demak District, that negaitive impact. In Demak District is caused by that remains buying Crabs, although the condition is laying andsmall size.      Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf application/pdf application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13194 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/22064 2020-04-17T19:29:58Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc PEMANFAATAN UMPAN ALTERNATIF LIMBAH KEPALA UDANG DAN WAKTU IMMERSING BUBU LIPAT TERHADAP HASIL TANGKPAAN RAJUNGAN (Portunus pelagicus) DI PERAIRAN KARIMUNJAWA KABUPATEN JEPARA (Utilization of Alternative Shrimp Head Waste Feed and Immersing Time of Pot on the Catch of Swimming Crab (Portunus Pelagicus) in Karimunjawa Waters of Jepara District) Neilirrohmah, Martiana Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Fitri, Aristi Dian Purnama Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Sardiyatmo, Sardiyatmo Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Karimunjawa; rajungan (Portunus pelagicus); jenis umpan;waktu immersing. Bubu lipat adalah alat tangkap yang digunakan untuk menangkap rajungan di Perairan Karimunjawa. Umpan yang biasa digunakan yaitu ikan segar (Damselfish), namun memiliki kendala sehingga peneliti memberikan solusi menggunakan umpan limbah kepala udang (Paneus merguensis) karena murah, bisa didapat dari limbah rumah tangga, serta mengandung protein yang dapat merangsang indera penciuman Rajungan (Portunus pelagicus). Tujuan penelitian adalah menganalisis hasil tangkapan Rajungan (Portunus pelagicus) dengan bubu lipat umpan limbah kepala udang (Penaeus merguensis) dan umpan ikan segar (Damselfish), serta perbedaan waktu immersing (6 jam dan 12 jam). Metode penelitian yang digunakan adalah experimental fishing dengan 8 kali pengulangan. Penelitian dilakukan di Perairan Karimunjawa, Kabupaten Jepara pada bulan Februari 2018. Analisis data menggunakan uji normalitas, uji homogenitas, dan uji-t. Hasil tangkapan Rajungan (Portunus pelagicus) dengan umpan limbah kepala udang lebih sedikit dibandingkan dengan umpan ikan segar (Sig. 0,538). Hasil tangkapan Rajungan (Portunus pelagicus) pada waktu immersing 6 jam lebih banyak dibandingan waktu immersing 12 jam (Sig. 0,512). Tidak terdapat interaksi antara umpan dan waktu immersing terhadap hasil tangkapan Rajungan (Portunus pelagicus) pada penangkapan bubu lipat di Karimunjawa.   Trap is one of the fishing gear used to catch a swimming crabs in Karimunjawa. Usually the bait is used fresh baits (Damselfish), but have constraints so the researcher giving a solution to use shrimp head waste (Penaeus merguensis) because cheap, can get from household waste, and contains protein that can stimulate the sense of swimming crabs’s smell. The research purposes to analyze the ratio of the catches between pot using shrimp head waste (Penaeus merguensis) with fresh baits (Damselfish) and immersing time difference (6 hours and 12 hours). The research method used in this study was the experimental fishing with 8 times repetition. The research held at Karimunjawa waters of Jepara District on February 2018. The data analysis used were the normality test, the homogenity test and t-test. The resulted of swimming crabs on the pot with shrimp head waste is less more than fresh baits (Sig. 0,538) . The resulted of swimming crabs on pot with 6 hours of immersing time is in the largest number of catch (Sig. 0,512). Fresh fish baits and shrimp head waste feed and immersing time between 6 hours and 12 hours no interaction the catch of swimming crabs in Karimunjawa   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22064 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/43315 2022-10-21T03:37:18Z saintek:RSA

nmb a2200000Iu 4500 "220906 2022 eng " 2549-0885 1858-4748 dc CLUSTERING CHARACTERISTICS OF SMALL-SCALE CAPTURE FISHERIES IN PRIGI, EAST JAVA Sari, Wahida Kartika Universitas Brawijaya Harlyan, Ledhyanne Ika Universitas Brawijaya Fuad, Fuad Universitas Brawijaya Diversity of fish species; catch per unit effort; principle component analysis; hierarchy of cluster Small-scale capture fisheries condition is multi gear and multispecies has an impact on increasing the pressure of fish condition. The information related to fisheries resource status is very essential in order to build sustainable fisheries management planning. This study aims to analyze the level of fishing gear productivity, clustering of fishing gear based on the number of catch fish in Prigi, East Java. These study results are expected as sustainable small-scale fisheries management recommendations. This research methods were used the analyzed of diversity by Shannon-Wiener index, catch per unit effort (CPUE) and clustering of fishing gear based on a combination between principal component analysis (PCA) and hierarchical cluster. The results showed that the composition of the catch in each fishing gear was varied. The highest diversity of fish used gillnet as fishing gear. In general, the type of fishing gear with the most catches in AFP Prigi is handline, meanwhile scoop net became the highest CPUE of fishing. Clustering of fishing gear tends to be the same with varying proximity and gillnet fishing gear is a fishing gear that tends not to group with other tools. This study resulted that the clustering of fishing gear tends not to change in the last 10 years, however the correlation between groups are dynamic and this case has an impact on the variations of catch fish and fishing gear productivity. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/43315 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/74284 2025-10-03T03:26:09Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc Sari, Gina Aprella Program Studi Pendidikan Ilmu Pengetahuan Alam, Fakultas Keguruan Dan Ilmu Pengetahuan, Universitas Bengkulu, Jl. W. R. Supratman, Kandang Limun, Kota Bengkulu, Provinsi Bengkulu, Indonesia 38122 Ruyani, Aceng Johan, Henny Defianti, Aprina Yani, Ariefa Primair Astuti, Annisa Puji Penyu lekang (Lepidochelys olivacea) merupakan spesies yang terancam punah sehingga upaya konservasi berbasis data ilmiah menjadi sangat penting. Penelitian ini bertujuan untuk mengkaji pengaruh pemberian dua jenis pakan lokal ikan bleberan (Thryssa sp.) dan ikan tamban (Sardinella fimbriata) terhadap pertumbuhan tukik penyu lekang di Konservasi Alun Utara, Desa Pekik Nyaring, Bengkulu Tengah. Metode yang digunakan dalam penelitian ini menggunakan eksperimental kuantitatif dengan desain rancangan acak lengkap (RAL) dengan lima perlakuan pakan yaitu A (50% S. fimbriata, 50% Thryssa sp.), B (75% S. fimbriata, 25% Thryssa sp.), C (25% S. fimbriata, 75% Thryssa sp.), D (100% S. fimbriata), dan E (100% Thryssa sp.). Pengukuran dilakukan setiap 7 hari sekali selama empat pekan. Pengamatan eksperimental kuantitatif terhadap empat parameter pertumbuhan, yaitu massa tubuh, panjang total, panjang karapas, dan lebar karapas. Kualitas air pemeliharaan juga dipantau meliputi suhu, salinitas, pH, dan Total Dissolved Solids (TDS) dengan frekuensi pengukuran satu kali setiap pekan. Analisis dilakukan dengan menghitung selisih rata-rata pertumbuhan antar waktu pada masing-masing perlakuan pakan. Hasil penelitian memperlihatkan bahwa pakan Thryssa sp. menunjukkan tren peningkatan pertumbuhan pada keempat aspek yang diamati dibandingkan S. fimbriata, dengan pertambahan tertinggi terdapat pada kelompok yang diberi 100% Thryssa sp. Diduga kandungan nutrisi dalam Thryssa sp., terutama lemak tak jenuh dan karbohidrat, berkontribusi terhadap efisiensi metabolisme dan percepatan pertumbuhan tukik. Temuan ini mendukung pemanfaatan pakan lokal bernutrisi tinggi sebagai bagian dari strategi konservasi nutrisi tukik penyu lekang. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/74284 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15292 2020-04-17T19:26:04Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc ANALISIS BAHAN ORGANIK DENGAN KUALITAS TANAH TERHADAPUKURAN DAUN BAKAU (Rhizopora mucronata Lamk) DI HUTAN MANGROVE DESA MOJO, ULUJAMI, PEMALANG (Analisis of Organic Matter and Soil Quality on the Size of Mangrove Leaf at Mojo Village, Ulujami Pemalang) Ismoyo, Untung Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Hendrarto, Boedi Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Pohon Bakau; Luasan Daun; Hutan Mangrove Desa Mojo   Bakau (Rhizopora mucronata) merupakan salah satu jenis mangrove yang terdapat pada kawasan rehabilitasi hutan mangrove Desa Mojo, Kabupaten Pemalang.Jenis mangrove ini ditanam karena bibitnya mudah diperoleh dan disemai sehingga mendominasi pada kawasan tersebut.Untuk mengetahui faktor-faktor yang berkaitan dengan pertumbuhan mangrove, maka telah dilakukanpenelitian tentang hubungan antara kualitas tanahdengan luasan helai daun mangrove.Jumlah sampel yang digunakan adalah405helai daun yang dipilih dengan kondisi yang sama dan berasal dari 9 stasiun penelitian. Dalam stasion yangsama dilakukan pula pengambilan sampel tanah sampai kedalaman 50 cm, untuk dianalisis kandungan bahan organik dan sifat fisik-kimia.  Sampel daun yang diperoleh kemudian diproses dalam photo studio mini buatan untuk diambil gambarnya menggunakan kamera digital beresolusi tinggi dalam jarak 30 cm dan dihitung luasannya denganperangkat lunak komputer Corel Draw X7.Analisis data menggunakan PCA dan hasilnya menunjukkan, bahwa dari semua variabel yang diukur dari tanah, maka hanya faktorbahan organik saja yang memiliki korelasi positif tinggi dengan luasan daunR. mucronata.     Mangrove (Rhizopora mucronata) is one of the mangrove species found in the rehabilitation area of mangrove forest of Mojo Village, Pemalang Regency. This type of mangrove is grown because the seeds are easy to obtain and sowing so as to dominate in the area. To know the factors related to the growth of mangroves, so has been conducted research on the relationship between soil quality with the extent of mangrove leaves. The number of samples used is 405 leaf blades selected under the same conditions and derived from 9 research stations. In the same station, soil sampling is done up to 50 cm depth, to analyze organic material content and physical-chemical properties. The leaf samples were then processed in an artificial mini studio photo to be photographed using a high resolution digital camera within 30 cm and calculated the extent of Corel Draw X7 computer software. Analysis of data using PCA and the results show, that of all variables measured from the soil, then only the factor of organic material alone has a high positive correlation with the leaf area of R. mucronata.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15292 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/21857 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190717 2019 eng " 2549-0885 1858-4748 dc PENGARUH BERBAGAI JENIS GELATIN KULIT IKAN TERHADAP KARAKTERISTIK KEKIAN IKAN NILA (Oreochromis niloticus) (The Effect of Various Types of Skin Fish Gelatine to Fish Kekian Characteristics from Tilapia (Oreochromis niloticus)) Mustafida, Helmy Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Darmanto, Y S Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Anggo, Apri Dwi Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kulit Ikan; Gelatin; Kualitas; Kekian; Ikan Nila “Kekian” merupakan salah satu produk diversifikasi perikanan. Kekian yang baik memiliki tekstur yang kenyal dan mudah dikunyah, sehingga perlu gelling agent (bahan pembentuk gel) untuk bisa membuat gel kekian tersebut tetap baik. Gelatin memiliki sifat sebagai penstabil dan pembentuk gel sehingga mempunyai kemampuan untuk meningkatkan kekuatan gel dan memperbaiki tekstur dari kekian. Tujuan penelitian ini adalah untuk mengetahui karakteristik gelatin dari berbagai jenis kulit ikan dan mengetahui pengaruh penambahan gelatin kulit ikan tersebut terhadap mutu produk kekian. Metode penelitian yang digunakan adalah experimental laboratories menggunakan Rancangan Acak Lengkap (RAL). Perlakuan pada penelitian adalah penambahan gelatin kulit ikan yang berbeda yaitu ikan patin, ikan cobia, dan ikan payus, masing-masing dengan tiga kali pengulangan. Parameter yang diamati adalah gel strength, kadar air, kadar protein, kadar lemak, hedonik, uji gigit, uji lipat, dan uji derajat putih. Data parametrik dianalisis menggunakan ANOVA dan uji lanjut Beda Nyata Jujur, sedangkan data non-parametrik dianalisis menggunakan Kruskall-Wallis dan uji lanjut Mann-Whitney Test. Hasil penelitian menunjukkan bahwa kekian dengan penambahan gelatin kulit ikan patin, cobia, dan payus mempunyai pengaruh yang berbeda nyata (P<0,05) terhadap kualitas kekuatan gel, kadar air, kadar protein, kadar lemak, hedonik (tekstur dan warna), uji gigit, uji lipat dan uji derajat putih. Formulasi kekian terbaik pada penelitian ini dengan penambahan gelatin kulit ikan cobia dinilai dari gel strength (1886,14 g.cm); nilai kadar air (51,75 %); nilai kadar protein (25,91%); nilai kadar lemak (9,21%); nilai hedonik (7,46<µ<7,73); nilai uji gigit (8,36); nilai uji lipat (4,46) dan nilai derajat putih (69,51).   “Kekian” is one of the fisheries diversification products. Good kekian has a chewy texture and is easy to chew, so it needs a gelling agent to make the gel remain good. Gelatine has the properties of a stabilizer and gel formation, so it has the ability to increase gel strength and improve texture from kekian. The purpose of this research is to know the characteristics of gelatine from various types of fish skin and determaine the effect gelatine addition of fish skin on the quality of product. The research method used was experimental laboratories using a Completely Randomized Design (CRD). The treatments were addition of different skin fish gelatine, namely catfish, cobia fish, and payus fish, each treatment was repeated in three replications. The parameters observed were gel strength, water content, protein content, fat content, hedonic, bite test, folding test, and degree of whiteness. Parametric data were analyzed using ANOVA and Honestly Significant Difference, while non-parametric data were analyzed using Kruskall-Wallis and Mann-Whitney test. The results showed that the kekian with the addition of  fish skin gelatine had a significantly different effect (P<0.05) on the quality of gel strength, moisture content, protein content, fat content, hedonic (texture and color), bite test, folding test and degree of whiteness. The best kekian formulation in this study with the addition of white cobia gelatine assessed from a value of gel strength (1886.14 g.cm); moisture content of water (51.75%); the value of protein level (25.91%); the value of fat (9.21%); a value hedonik (7.46<µ<7.73); the value of bite test (8.36); the value of folding test (4.46) and the value of degree of whiteness (69.51). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21857 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6834 2025-04-26T12:53:02Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc Hematological Performances of Catfish ‘SANGKURIANG’ (Clarias gariepinus, Burch.) Fed on Deits Containing Organic Chromium Hastuti, Sri Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Subandiyono, Subandiyono Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro A research on hematological performances and body immunity of catfish ‘sangkuriang’ (Clarias gariepinus, Burch.) fed on diets containing different levels of organic chromium was conducted.  Three thousands of experimental fishes with their body weight varied from 6 to 7 grams were reared for 40 days in (2x1x1)-m3 of plastic-lining wooden tanks.  The stocking density used was 200 fishes per tank.  The tanks, with a total number of 15 tanks, were connected to each others and to a filtration concrete pond of (5x1x1) m3 to become a semi-closed water system.  The filtered water was pumped up to an every single tank through 1”-PVC pipe as an inlet.  The pipe of each tank was facilitated by a tap to enable controlling its water flow.  During the fish rearing period, a daily siphon was done to clean the fish fesses out from the system.  Diets containing 5 different levels of organic chromium, i.e. 0, 1.5, 3.0, 4.5, and 6.0 ppm of Cr+3, were fed to the experimental fish  thirth a day at satiation.  Each unit of treatment was replicated 3 times.  At the end of rearing period, variables i.e. leucocytes, erythrocytes, hemoglobin, and blood  glucose levels at fasting state were measured for the each treatment.  Results showed that the fish fed on dietary organic chromium tended to improve its body immunity and decrease its total account of leucocytes and its blood glucose level.  Bloods of the fish with dietary organic chromium also tended to contain lower erythrocytes, hemoglobin, hematocryte, and thrombocytes levels than those of the control (i.e. the fish fed on a diet without organic chromium).  The fish which consumed a diet containing 1.5 ppm of Cr+3 showed better hematological performances.   Keywords: Hematology, Immunity, Blood glucose, Chromium, Catfish, Sangkuriang, Clarias Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6834 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21336 2018-12-04T14:49:37Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/78159 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Nusaibah, Nusaibah - Department of Marine Product Processing, Polytechnic of Marine and Fisheries Pangandaran, Indonesia https://scholar.google.com/citations?user=Oaqg4hUAAAAJ&hl=id&authuser=1 http://orcid.org/0000-0002-1826-1757 Lestari, Syifa Candra Maulid, Deden Yusman Tepung tulang Ikan Manyung dikenal memiliki kandungan kalsium yang tinggi, sedangkan Ulva lactuca dikenal memiliki kandungan serat pangan yang tinggi. Kue seroja merupakan salah satu kue tradisional yang sering dikonsumsi oleh masyarakat. Pemanfaatan kedua bahan ini berpotensi meningkatkan nilai gizi kue seroja. Oleh karena itu, dilakukan penelitian dengan tujuan untuk mengetahui pengaruh penambahan tepung tulang ikan manyung dan filtrat rumput laut U. lactuca terhadap sifat sensori dan peningkatan gizi pada kue seroja (proksimat, kalsium dan serat pangan). Rancangan penelitian ini dilakukan dengan 4 perlakuan yaitu P0 (tanpa penambahan tepung tulang ikan manyung dan filtrat U. lactuca), P1 (penambahan tepung tulang ikan manyung), P2 (penambahan filtrat U. lactuca), dan P3 (penambahan kombinasi tepung tulang dan filtrat U. lactuca). Uji yang dilakukan untuk semua perlakuan adalah hedonik, sedangkan untuk uji proksimat, serat pangan dan kalsium hanya dilakukan pada perlakuan P0 dan P3. Analisis data hedonik menggunakan uji Kruskal Wallis dan Mann Whitney U dengan tingkat kepercayaan 95%. Hasil uji hedonik menunjukkan bahwa perlakuan P3 paling disukai panelis (warna dan tekstur) dan P0 (aroma dan rasa). Hasil uji proksimat menunjukkan kadar abu dan protein pada P3 lebih besar jika dibandingkan dengan P0 yaitu 4,28±0,17% dan 5,8±0,21%. Selain itu, kandungan kalsium dan serat pangan P3 juga lebih tinggi dari P0, dengan kadar kalsium sebesar 7756,96 mg/kg dan serat pangan 67,91%. Hasil ini menunjukkan bahwa penambahan tepung tulang manyung dan filtrat U. lactuca terbukti dapat meningkatkan gizi pada Kue Seroja. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/78159 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/20533 2020-04-17T19:27:55Z saintek:RSA

nmb a2200000Iu 4500 "181002 2018 eng " 2549-0885 1858-4748 dc INVENTARISASI MANGROVE DAN GASTROPODA DI PULAU TUNDA SERANG BANTEN, INDONESIA SERTA DISTRIBUSI SPASIAL DAN KONEKTIVITASNYA (Mangrove and Gastropods Inventarization, Spacial Distribution and Connectivity in Tunda Island Serang Banten, Indonesia) Syahrial, Syahrial Sekolah Tinggi Perikanan dan Kelautan Maju Tapian Nauli Jl. Ki Hajar Dewantara No. 1 Pandan Tapanuli Tengah Sumatera Utara 22611 Belukap Mangrove Club Jurusan Ilmu Kelautan Universitas Riau Kampus Bina Widya Jl. HR. Soebrantas Km 12,5 Gedung Marine Center Lantai 1 Fakultas Perikanan dan Kelautan Universitas Riau, Pekanbaru 28293 Novita MZ, Novita MZ Program Studi Manajemen Sumberdaya Perairan Universitas Muhammadiyah Sukabumi Jln. R. Syamsudin, SH No. 50 Sukabumi Mangrove; Gastropoda; Pulau Tunda; Indonesia; Distribusi; Konektivitas Ekosistem mangrove adalah ekosistem yang unik, sangat rentan, tetapi paling produktif diantara ekosistem lainnya. Salah satu manfaat hutan mangrove adalah sebagai tempat hidup berbagai biota pesisir dan laut. Penelitian tentang inventarisasi jenis mangrove dan biota asosiasi gastropoda serta distribusi dan konektivitasnya telah dilakukan di Pulau Tunda Serang Banten pada bulan Januari 2014 yang bertujuan untuk mendata keanekaragaman hayati di Indonesia. Stasiun 1 berada di bagian Timur pulau, sedangkan Stasiun 2 berada di bagian Selatan pulau. Data kondisi vegetasi mangrovenya dikumpulkan dengan cara membuat transek garis dan plot berukuran 10 x 10 m2, 5 x 5 m2 dan 1 x 1 m2 yang ditarik dari titik acuan (tegakan mangrove terluar) dan tegak lurus garis pantai sampai ke daratan, sedangkan data kondisi biota asosiasi gastropodanya dikumpulkan dalam plot berukuran 1 x 1 m2 yang dipasang dalam plot transek vegetasi mangrove berukuran 10 x 10 m2. Kemudian distribusi mangrove, biota asosiasi gastropoda dan konektivitasnya dianalisis menggunakan Analisis Faktorial Koresponden (AFK). Hasil penelitian menunjukan bahwa terdapat 5 jenis mangrove dan 20 jenis biota asosiasi gastropoda. Kerapatan mangrove untuk kedua stasiunnya bervariasi, dimana untuk kategori pohon dan semai kerapatan tertingginya pada bagian Selatan, sedangkan kerapatan anakan pada bagian Timur. Sementara untuk biota asosiasi (gastropoda), kepadatan tertinggi untuk kedua stasiunnya adalah L. scabra (6,31 dan 2,24 ind/m2). Distribusi jenis mangrove berdasarkan AFK dikelompokan menjadi dua kelompok, sedangkan distribusi gastropodanya menjadi 3 kelompok. Selanjutnya spesies mangrove R. apiculata memiliki hubungan yang kuat terhadap spesies gastropoda L. scabra, kemudian B. gymnorrhiza dan R. stylosa berkaitan erat dengan C. cingulata maupun T. sulcata, sedangkan R. mucronata, L. racemosa maupun S. caseolaris berkaitan erat dengan gastropoda T. palustris, N. planospira dan M. puella. Mangrove is an unique and susceptible ecosystem, but the most productive than others ecosystem. One of the mangove forest function is as a living place for many coastal and sea biota such as sea gastropods. The research is included some activity to inventory the mangrove and sea gastropod as association biota with it’s spacial distribution and connectivity. It was conducted in Tunda Island Serang Banten on January, 2014 with the aim to collect biodiversity data in Indonesia. Station one (1) is on the East part of the island, while station two (2) on the South part. The mangrove vegetations condition data were collected by line transect and plot (10 x 10 m2, 5 x 5 m2 and 1 x 1 m2) method. It is pulled from the point reference direction (the outer mangrove stand) perpendicular to the shoreline from the main land and divided into 2 (two) research station located on east and south part of the island. While, the associations biota (sea gastropod) condition data were collected by plot size method (1 x 1 m2) located on mangrove vegetation transect plot (10 x 10 m2). Mangrove and gastropods spacial distribution and it connectivity were analyzed by Correspondent Analysis Factorial (CAF) function in SPSS (Statistical Package for Social Science) software. The spacial distribution results shown there were 5 (five) mangrove species and 20 (twenty) sea gastropods. Mangrove density for both station is variated, which for the highest tree and seedling density category stranded on the South part of the island, while for sapling on the East part. While, the highest densities of L. scabra (sea gastropod) as mangrove asscociation biota are located in both station (6.31 and 2.24 ind/m2). According to CAF analysis, the mangrove species are distributed into 2 (two) groups, while, gastropods are distributed into 3 (three) groups for its connectivity measurement. The results showns that mangrove species of R. apiculata has strength relation with gastropods species as gastropoda L. scabra. Therefore, B. gymnorrhiza and R. stylosa has strength relation with C. cingulata and T. sulcata, whereas, R. mucronata, L. racemosa and S. caseolaris has strength relation with gastropoda T. palustris, N. planospira and M. puella.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/20533 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22455 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc Electrofishing AMAN DAN SELEKTIF UNTUK PENANGKAPAN LELE (Study of Human Safe Electrofishing Which Selective to Catch Catfish) Puspito, Gondo Institut Pertanian Bogor Wenang, Rolando Akbar Institut Pertanian Bogor Kurohman, Faik Universitas Diponegoro Semarang Penyetruman; ekosistem perairan; arus listrik; lele; waktu pingsan; waktu pulih Metode penangkapan ikan dengan penyetruman telah dilarang oleh pemerintah Indonesia sejak tahun 2004, meskipun masyarakat masih melakukannya secara diam-diam.. Penyebabnya adalah penyetruman dianggap membahayakan keselamatan manusia dan merusak ekosistem perairan. Penelitian mencoba mendapatkan arus listrik yang aman dan efektif untuk menangkap lele (Clarias sp.) layak tangkap tanpa merusak lingkungan perairan. Arus listrik yang diinginkan dapat memingsankan lele layak tangkap dengan cepat, tetapi waktu siumannya lambat, sehingga memberi waktu yang cukup lama untuk penangkapannya.  Jumlah lele yang diuji sebanyak 90 ekor yang dibagi atas 3 kelompok dengan panjang total tubuh antara 18,5-32,5 cm. Masing-masing terdiri atas 30 lele yang disetrum dengan arus listrik 1 mA, 2 mA, dan 3 mA.  Ketiga besaran arus listrik masih dianggap aman karena belum memberikan efek negatif bagi tubuh manusia (Ouazani et al., 2012). Hasilnya adalah penyetruman lele sebaiknya menggunakan arus listrik 2 mA, karena aman bagi manusia dan efektif untuk menyetrum lele. Waktu pingsan lele berukuran layak tangkap yang memiliki panjang tubuh ≥ 24,5 cm antara 83 – 140 detik, atau lebih cepat dibandingkan dengan 1 mA (120-309 detik), sedangkan waktu siumannya  117-225 detik atau lebih lama dari 3 mA (79-125 detik).   Electrofishing currently has been banned by Indonesian Government since 2004, regardless, some of the people still do that secretly. The banning caused by the thought that electrofishing indeed harmful to human safety and aquatic ecosystem. This research aimed to obtain the electricity current that safe and effective to catch  the proper size of catfish (Clarias sp.) without harming the aquatic ecosystem. Desired electricity current strength is the one that able to temporarily immobilised catfish quickly with long time to be conscious so gives longer time in harvesting activity. The amount catfish used in the experiment was 90 fishes with average body length 18.5-32.5 cm, divided in to 3 groups. Each group consists of 30 catfishes which shocked by current strength of 1 mA, 2 mA, and 3 mA. Each of the current strength still regarded as save as it has not given negative effect to human body (Ouazani et al. 2012). Result showed that the most recommended electric current is 2 mA as it is safe for human body and able to shock the catfishes effectively. Unconscious time of catfish with body length of ≥ 24.5 cm were between 83 – 140 seconds, which faster compared to 1 mA (120-309 seconds), with conscious time of 117-225 seconds which took longer than 3 mA (79-125 seconds). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22455 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6852 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Perbandingan Hasil Tangkapan Udang dengan Menggunakan Lapdu, Giltong Dan Trammel Net di Perairan Saengga Kabupaten Teluk Bintuni Iskandar, Dahri Departemen Pemanfaatan Sumberdaya Perikanan, FPIK IPB Kampus IPB Dramaga, Bogor This experiment was carried out at Saengga Waters of Teluk Bintuni Regency using 6 (six) pieces of trammel net, lapdu and gilltong, respectively. The objective of this experiment was to compare catchability of trammel net, lapdu and gilltong for capturing shrimp. Total catch obtained in this experiment was 534 fishes which consist of 25 species. Dominant catch was banana prawn (Penaeus indicus) i.e 38.6% of total catch, followed by flatfish (Cynoglosus sp) and croaker fish (Cynoglosus sp) which consist of 17.04 % and 10.11 % of total catch, respectively. Dominant catch of gilltong and lapdu was dominated by fish while catch of trammel net was dominated by prawn. In term of Catch per Piece of Net, trammel net caught significantly large number of catch than gilltong and lapdu. Keywords: Trammel Net, Gilltong, Lapdu, Catch, Shrimp Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6852 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/51861 2025-01-08T02:24:48Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/23948 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200501 2020 eng " 2549-0885 1858-4748 dc ANALISIS KESESUAIAN PERMINTAAN WISATA DAN PENAWARAN OBJEK WISATA DI TAMAN NASIONAL KEPULAUAN SERIBU (KASUS DI PULAU PRAMUKA), JAKARTA. Risqiani, Agustina Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suprapto, Djoko Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Purwanti, Frida Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro wisata bahari; Pulau Pramuka; analisis supply demand Pulau Pramuka sebagai zona pemukiman di Taman Nasional Kepulauan Seribu memiliki keindahan alam yang potensial untuk pengembangan wisata bahari. Tujuan penelitian untuk mengidentifikasi potensi lokal dan menganalisis kesesuaian antara permintaan (demand) wisata dengan penawaran (supply) potensi wisata lokal di Pulau Pramuka. Penelitian dilaksanakan pada bulan Februari 2019. Metode analisis data yang digunakan pada penelitian ini adalah analisis supply-demand. Hasil penelitian menunjukkan potensi wisata yang dimiliki Pulau Pramuka meliputi atraksi wisata alam dan buatan, kuliner dan souvenir khas, aksesibilitas dan transportasi yang mudah, fasilitas lengkap, serta adanya peran dari pemerintah dan masyarat dalam pengembangan pariwisata. Permintaan wisata dengan potensi wisata terjadi ketidaksesuaian disebabkan oleh kurangnya penambahan hewan di penangkaran, penambahan atraksi wisata air dan area bermain bagi wisatawan, tidak tersedianya wisata pada malam hari, peningkatan kenyamanan transportasi, wifi corner, spot foto, kebersihan dan jumlah fasilitas wisata serta kesadaran masyarakat dalam menjaga lingkungan daerah wisata Pulau Pramuka.   Pulau Pramuka as a zone of housing site in a national park of Kepulauan Seribu having a natural beauty whose potential for the development of maritime tourism. The research objective to identify local potential and analyze the suitability of tourist demand with the supply of local tourism potential on Pulau Pramuka. The research was conducted in February 2019. The data analysis method used in this study was supply-demand analysis. The results showed that the tourism potential of Pulau Pramuka included natural and artificial tourist attractions, unique culinary and souvenirs, accessibility and easy transportation, complete facilities, and the role of the government and society in tourism development. Tourism demand with potential tourism occur some problems due to lack of development of animals in captivity, addition of water tourism and play areas for tourists, unavailability of tourism at night, increased transportation convenience, wifi corner, photo spots, cleanliness and the number of tourist facilities and community awareness in maintain the environment of the Pulau Pramuka tourism area. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23948 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8108 2015-06-29T14:44:03Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc RESTOCKING SPECIES IKAN LOKAL DI PERAIRAN DANAU RAWA PENING (Restocking Local Fish Species in Rawa Pening) Muskananfola, Max Rudolf Program Studi Manajemen Sumberdaya Peraira FPIK-UNDIP Semarang Afiati, Norma Program Studi Manajemen Sumberdaya Peraira FPIK-UNDIP Semarang Ghofar, Abdul Program Studi Manajemen Sumberdaya Peraira FPIK-UNDIP Semarang Kompleksnya permasalahan yang terjadi di Rawa Pening telah berdampak pada menurunnya potensi sumberdaya perikanan khususnya populasi spesies ikan lokal. Kehilangan spesies lokal (spesies endemik) adalah kerugian besar, mulai dari hilangnya ‘warisan alam’ sehingga tidak dikenali lagi oleh anak cucu ataupun generasi yang akan datang, hilangnya nilai manfaat dari spesies tersebut, hingga gangguan keseimbangan ekologis akibat ada relung ekologi yang kosong. Tim Hibah Pengabdian Masyarakat FPIK Undip sebagai akademisi mempunyai tanggung jawab untuk berperan memberikan solusi atas permasalahan yang terjadi di Rawa pening, Salah satu solusi yang ditawarkan adalah Restocking ikan. Program ini dilaksanakan selama 5 bulan dengan 3 (tiga) tahapan. Pertama, Ecological Review yang terdiri dari program sosialisasi, pelatihan teknik restocking dan survai lingkungan serta lokasi untuk pertimbangan jenis biota yang dipilih untuk ditebar, ikan yang dipilih adalah ikan Nila Merah (Oreochromis niloticus). Kedua, Pre–Restocking, tahap ini adalah pengadaan/pembelian benih ikan untuk restocking serta aklimatisasi. Ketiga, Restocking, merupakan tahap inti kegiatan pengabdian masyarakat, jumlah ikan yang ditebar sebanyak 6,000 ekor bibit ikan dengan ukuran 5-10 cm, dan ditebar di tiga lokasi yang telah ditentukan pada saat survai, jadi masing–masing titik ditebarkan 2,000 ekor bibit ikan .Ketiga, Monitoring, kegiatan ini dilakukan untuk mengetahui keberhasilan program sekaligus evaluasi kekurangan–kekurangan pada pelaksanaan program yang dapat digunakan untuk penyempurnaan pelaksanaan kegiatan serupa di masa yang akan datang. Masyarakat sekitar Rawa Pening sangat mendukung dan antusias terhadap program restocking yang dilakukan dan merasakan manfaat positif dari kegiatan restocking meskipun belum signifikan. Dukungan, perencanaan, kontinuitas monitoring dan evaluasi menjadi unsur penting bagi keberhasilan program restocking. Saran yang diberikan setelahn evaluasi program pengabdian adalah perlunya tagging pada program restocking untuk memudahkan proses monitoring dan kontrol keberhasilan program restocking. Kata Kunci : Restocking, Pengabdian Masyarakat, Rawa pening   The complexity of prevailing problems in Rawa Pening has resulted in decreasing fishery resources potential in particular affecting the population of local fish species. The extinction of endemic species is an immense loss as the ‘natural heritage’ will not be  passed on to the next generation, the reduced benefit of the species and the disturbed ecological balances due to the missing ecological niche. Community Service Team of FPIK Undip bears the responsibility to take important part in finding solutions to the problems encountered in Rawa Pening. One of the proposed recommendation is  Fish Restocking. This program was carried out for 5 months in 3 (three) stages. First, Ecological Review consisting socialization programs, training on restocking techniques, and location and environment surveys for determining the species to be restocked, the selected species is Red Tilapia (Oreochromis niloticus). Second, Pre-restocking: provision of fish fry for restocking and acclimatization. Third, Restocking, which is the core stage of this community  service activity: the release of 6,000 fish fry with the sizes of 5-10 cm  released in three locations which were determined during the pre-survey stage. The total fry was 2,000. Third, Monitoring: carried out to assess the programs achievement as well as to evaluate the activity implementation deficiencies which can be refered to in similar acitivies in the future. The neighboring community was very supportive and showed appreciation and enthusiasm to this restocking activity and has got valuable benefits to some extent although can not yet significantly measured. Supports, planning and continuous evaluation and monitoring will become the key to the restocking success. Recommendations after the evaluation include tagging in the restocking program to allow the program monitoring and control of the activity accomplishment. Key words : Restocking, Community Service, Rawa Pening Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 https://ejournal.undip.ac.id/index.php/saintek/article/view/8108 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/6787 2025-04-26T12:39:40Z saintek:RSA

nmb a2200000Iu 4500 "080822 2008 eng " 2549-0885 1858-4748 dc ANALISIS KETERKAITAN SEKTOR PERIKANAN DENGAN SEKTOR LAIN PADA PEREKONOMIAN JAWA TENGAH Dault, Adhyaksa Program Doktor Manajemen Sumberdaya Pantai Universitas Diponegoro Kohar M, Abdul Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Suherman, Agus Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Pengembangan sektor perikanan   perlu diarahkan untuk dapat meningkatkan peran dalam menciptakan keterkaitan yang kuat dengan sektor yang lain baik keterkaitan ke depan maupun ke belakang melalui peningkatan nilai tambah, penyerapan tenaga kerja, dan pendapatan. Penelitian ini bertujuan untuk mengetahui ; keterkaitan (linkage) sektor perikanan dengan sektor lain pada perekonomian Jawa Tengah. Metode  penelitian  menggunakan  studi  kasus  dan  dilanjutkan  dengan  analisis  deskriptif.  Data  yang dianalisis adalah  Tabel Input Output Transaksi Domestik atas Dasar  Harga Produsen  Klasifikasi  19 Sektor Propinsi Jawa Tengah Tahun 2007, sebagai hasil pemuktahiran data (up dating). Analisis data dilakukan dengan menggunakan matematika ekonomi dan model input output yang dibantu dengan menggunakan program Excel, IOW dan GRIMP 7.1. Hasil penelitian menunjukkan bahwa analisis keterkaitan sektor perikanan ke belakang yang lebih besar daripada ke depan, hal ini menunjukkan bahwa sektor tersebut lebih mampu menarik sektor hulu, dibandingkan dengan sektor hilir atau lebih berorientasi memanfaatkan input dari sektor yang lain dari pada menyediakannya. Akan tetapi jika dibandingkan dengan sektor yang lain, nilai keterkaitan sektor perikanan baik kedepan maupun ke belakang masih rendah,  sehingga  akan  lebih  banyak  dipengaruhi  sektor  lain,  untuk  menyediakan  input  maupun penggunaan output.   Kata Kunci : Keterkaitan, Perekonomian, Jawa Tengah Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6787 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/40545 2025-04-15T07:52:27Z saintek:RSA

nmb a2200000Iu 4500 "221225 2022 eng " 2549-0885 1858-4748 dc Sugiarti, Sugiarti Research Center for Limnology Indonesian Institute of Sciences Jl Raya Jakarta Bogor km 46 Cibinong Bogor 16911 https://orcid.org/0000-0001-8943-3184 Rohaningsih, Denalis Waluyo, Agus Muara - muara sungai di Teluk Banten merupakan daerah penangkapan ikan diantaranya adalah muara sungai Cibanten, Wadas, Cengkok dan Pamong. Aktivitas manusia yang padat di muara - muara sungai tersebut dapat mengancam kondisi perairan dan dikhawatirkan dapat mempengaruhi hasil tangkapan ikan. Tujuan penelitian ini untuk mengetahui kualitas perairan di muara  - muara sungai di Teluk Banten apakah sesuai dengan kondisi ideal untuk kehidupan biota ikan. Penelitian dilakukan di muara sungai Cibanten, Wadas, Cengkok dan Pamong. Pengukuran kualitas air dilakukan  pada bulan April 2021 dan hasilnya dibandingkan dengan hasil penelitian di bulan Mei, Juli dan Oktober tahun 2013. Contoh air diambil secara komposit dari permukaan, kedalaman sechi dan dasar perairan. Analisis kualitas air yang dilakukan adalah parameter suhu air, pH, oksigen terlarut, kapasitas oksidasi reduksi, kekeruhan, Total Padatan Terlarut, Total Padatan Tersuspensi, Salinitas, N-NO2, N-NO3, N-NH4, P-PO4, Total N, Total P, Logam Fe, Cr dan Pb serta klorofil -a. Hasil analisis yang didapat dibandingkan dengan baku mutu air laut.  Hasil analisis umumnya masih memenuhi baku mutu kecuali beberapa parameter seperti TSS dan kondisinya sama seperti tahun 2013. Hal ini harus menjadi perhatian serius untuk diatasi agar perikanan tangkap di muara – muara sungai di Teluk Banten tetap lestari. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-02-10 02:56:07 https://ejournal.undip.ac.id/index.php/saintek/article/view/40545 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 4 (2022): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33155 2021-11-30T10:59:23Z saintek:RSA

nmb a2200000Iu 4500 "201031 2020 eng " 2549-0885 1858-4748 dc THE ROLE OF SEAWEED (Gracilaria verucosa) IN CO-CULTIVATION WITH TIGER SHRIMP (Penaeus monodon) AS AN ECOLOGICAL INTENSIFICATION Widowati, Lestari Lakhsmi Aquaculture Department. Faculty of Fisheries and Marine Science. Diponegoro University https://orcid.org/0000-0002-1004-0255 Elfitasari, Tita Departemen Akuakultur Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Prayitno, S Budi Departemen Akuakultur Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rejeki, Sri Departemen Akuakultur Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Purnomo, Pujiono W Departemen Manajemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ariyati, Restiana W Departemen Akuakultur akultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Bosma, Roel Wageningen Institute of Animal Science, Wageningen University macro algae, ammonia, nitrite, nitrate The use of seaweed as ecological tools for improving environmental condition has been proved to sustain shrimp production. However, adding too much seaweeds caused oxygen depletion and nutritional competition. The objective of this study was to determine the optimum density of G. verucosa for supporting the growth of monodon shrimp. The research was conducted in Tambakbulusan village, Demak Regency with 20 fiber semi outdoor tanks. The tanks were used for the experiment without seaweed and with four densities of seaweed (50, 100, 150 and 200 g.m-2) using hanging rope and were co-cultivated with 80 individuals of post larva (2.0-2.9 g) monodon shrimp in 800 L brackish-water system. The concentration of TAN, NO3, and NO2 were monitored every week, while dissolved oxygen (DO), pH, temperature, and salinity werechecked daily for 30 days. The highest shrimp survival rate (79.75%) and growth rate (6.6%day-1) were obtained in the 100 g.m-2 of G. verucosa, significantly higher than in other treatments. Furthermore, seaweed density has a decreasing effect of NO3 content (g/L) in RL100 from 0.26 to 0.16. and the lowest concentration of NO2 and NO3 were determined. Conversely, the highest density of seaweed (200 g m-2) gave the lowest survival rate of shrimp (53.67%) due to high NO2 content. DO had various values depending on the density and drop to less than 3.5 ppm in the highest density. In all treatments,  pH, temperature and salinity werein a good range for shrimp culture. Thus, 100 g.m-2 of seaweed was optimal for ensuring the function as nutrient removal in shrimp co-culture. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33155 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8322 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc Analysis of the Density of Sea Cucumbers (Holothurians) based on the Type of Coral Cover in Karimunjawa Waters, Jawa Tengah Sulardiono, Bambang Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Hendrarto, Boedi Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ecologically Karimunjawa waters dominated by the type of coral reef ecosystems and their associated, so that the biological diversity, beauty, and can provide backup germplasm. Thus, the territorial waters of Karimunjawa has a very high productivity rate, one of which is a resource of sea cucumbers ( holothurians ). Types of coral cover as a exogeneous factor in an area waters contribute to the stability of sea cucumber populations in habitat. With the different types of coral cover will give the effect of the presence of population dynamics in the habitat, which in this case is expressed as the density of sea cucumbers (ha-1). Therefore, to see how the conditions of the type of coral cover in Karimunjawa waters and how the relationship between the type of coral cover with a density of sea cucumbers, then this research be done. Furthermore, the results of this study can be used as a reference for resource management in the Karimunjawa waters of the sea cucumber. The purpose of this study to determine (a) the type of coral cover in Karimunjawa waters, (b) the relationship between the type of coral cover with a density of sea cucumbers.The results of the analysis provide information that density individual ha-1 of sea cucumbers at all stations observed ranged from 70.6-110.9 individuals ha-1. Overall stations observed, it was found that the types of abiotic  coral cover dominated by dead coral algae (DCA) and sand coral (S). Types of coral cover between stations on the magnitude of the density of sea cucumbers were not significantly different. There are similarities types of relatively low coral cover of the station Mrican against 3 other stations, namely Small Menjangan station, Legon Goprak and Karang Gumuk station at 12.10%, while the percentage of the greatest similarity exists between a Menjangan Kecil station to station sand coral by 63.47%. Keywords : Density, sea cucumbers and coral cover Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8322 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2067 2020-12-07T08:07:05Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Hematological performances of African catfish (Clarias gariepinus) and media water qualities in culture system with bio-filtration pond Hastuti, Sri Program Studi Budidaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Semarang Subandiyono, Subandiyono Program Studi Budidaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Semarang The aim of This study was to determine the effect of application biofiltration pond on water quality media and fish hematological performance consisting of erythrocytes, leukocytes, hemoglobin, hematocrit and platelets. Two treatments, namely water management systems with and without applied biofiltration pond to the catfish rearing system in the village of Beji, District East Ungaran. Dumbo Catfish Seed 8-10 cm in size were reared on the pond with a density 200 fish/m2. During the rearing of fish fed with pellets by the method of ad satiation, twice a day at noon and at night. Rearing the fish was done until size of consumption. At the end of the rearing carried out measurements of water quality conditions of temperature, pH, dissolved oxygen, carbon dioxide and ammonia, as well as hematological performance consisting of erythrocytes, leukocytes, hematocrit, hemoglobin, hematocrit and platelets. Data were analyzed descriptively. The results showed changes in leukocyte count from 107.57 thousand cells / ul to 92.3 thousand cells / ul. Platelets 42 000 cells / ul to 6000 cells / ul, while the erythrocytes and hematocrit values, each for 1.72 to 1.74 million cells / ul and 7.8 to 9.73 thousand cells / ul, water quality media were improvement, especially on the total ammonia content of 0.92 ppm to 0.14 ppm and dissolved oxygen is 0.08 ppm to 0.5 ppm. From the data can conclude that applied biofiltration pond on catfish farming systems can improve water quality media that support life and growth of fish. Keywords: African catfish, biofiltration pond , hematological performance, water quality management http://ejournal.undip.ac.id/index.php/saintek/article/view/2067 Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2067 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/58370 2025-04-15T07:25:05Z saintek:RSA

nmb a2200000Iu 4500 "231031 2023 eng " 2549-0885 1858-4748 dc PREVALENCE OF PARASITES IN CRUSTACEAN AT PANMUTI BEACH, KUPANG REGENCY Rebhung, Felix Study Program of Aquaculture, Universitas Nusa Cendana Dahoklory, Nicodemus Djonu, Asriati Study Program of Aquaculture, Universitas Nusa Cendana https://orcid.org/0000-0003-1072-9690 Pasaribu, Wesly Crustacean; Litopenaeus vannamei; Panmuti Beach; Prevalence; Swimming Crab Crustacean catches in Panmuti Beach, including white shrimp (Litopenaeus vannamei) and swimming crab, are commodities with high economic value. This certainly increases the demand for both commodities, but the fulfillment of market needs is faced with various problems. One of them is the emergence of disease by parasite infection. The purpose of this research is to identify the types and determine the prevalence of parasites that infect these Crustaceans. Parasite identification was carried out at the Kupang Fish Quarantine, Quality Control and Fishery Product Safety Center. The sampling method uses purposive sampling. The samples observed were white shrimp (Litopenaeus vannamei) and swimming crab in live condition. The results obtained in the white shrimp sample contained one type of parasite, namely Chilodonella sp. with a prevalence of 20%. In swimming crab samples there is one type of parasite, Octolasmis sp. with a prevalence of 100%.  The results of this study can be used as information on product quality control and efforts to prevent and spread disease by parasites. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-11-01 05:59:06 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/58370 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 3 (2023): SAINTEK PERIKANAN eng Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/32430 2021-11-30T12:01:20Z saintek:RSA

nmb a2200000Iu 4500 "210412 2021 eng " 2549-0885 1858-4748 dc Kasitowati, Rarasrum Dyah Fakultas Perikanan dan Ilmu Kelautan-Universitas Brawijaya Huda, Muhammad Miftahul Asmara, Rosihan Aliviyanti, Dian Iranawati, Feni Panjaitan, Mikchaell Alfanov Pardamean Pratiwi, Dwi Candra Arsad, Sulastri Sargassum sp. dikenal sebagai salah satu sumber hayati yang memiliki kandungan senyawa bioaktif yang berpotensi sebagai bahan esesnsial industri. Namun, komoditi ini kurang bernilai ekonomis sehingga perlu eksplorasi secara optimal untuk meningkatkan nilai ekonomisnya. Salah satu potensi yang dapat dikembangkan adalah aktivitas fotoprotektif yang dimiliki oleh Sargassum sp. Tujuan dari penelitian ini adalah untuk mengeksplorasi aktivitas fotoprotektif Sargassum sp. terhadap paparan sinar UV-B dan UV-A. Potensi fotoprotektif diperoleh dari hasil pengujian nilai SPF (Sun Protection Factor), %Te dan %Tp dari tiga ekstrak Sargassum sp. menggunakan jenir pelarut yang berbeda (methanol, etil asetat dan nheksana). Hasil penelitian menunjukkan bahwa ketiga ekstrak memiliki aktivitas fotoprotektif (SPF) bersifat ultra pada konsentrasi 1100 ppm dan memiliki efek perlindungan (%Te dan %Tp) sebagai Sunblock pada konsentrasi 1100 ppm ekstrak Sargassum sp. Namun dari ketiga ekstrak, ekstrak dengan pelarut etil asetat (ESE) menunjukkan nilai SPF yang tertinggi (32,63) dan nilai %Te (0,055) %Tp (0,075) terendah pada konsentrasi yang sama. Semakin tinggi nilai SPF menunjukkan sifat fotoprotektif yang semakin baik, sedangkan semakin rendah nilai %Te dan %Tp menunjukkan efek perlindungan yang semakin baik.   Sargassum sp. known as one of the biological sources that contain bioactive compounds. These compounds have the potential to be industrial essential ingredients. However, this commodity is less economically valuable, so it is important to explore its bioactive compounds in order to increase its economic value. One of the potentials that can be developed is its photoprotective activity. The study aimed  to explore the photoprotective activity of Sargassum sp. against exposure of UV-B and UV-A rays. The photoprotective activity was obtained from the results of the SPF (Sun Protection Factor), % Te and % Tp values of three different Sargassum sp. extracts (methanol, ethyl acetate, and n-hexane). The results showed that the three extracts had an ultra-photoprotective activity (SPF) at a minimum concentration of 1100 ppm and had a protective effect (% Te and% Tp) as sunblocks at the same minimum concentration of 1100 ppm. Among these three extracts, the ethyl acetate extract (ESE) showed the highest SPF value (32.63) and the lowest % Te (0.055) % Tp (0.075) value, at the same concentration. The higher SPF value indicates the better photoprotective properties, while the lower % Te and% Tp values explain the better protective effect.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/32430 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9330 2015-10-27T11:23:08Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc STATUS KEBERLANJUTAN DIMENSI EKOLOGI DALAM PENGEMBANGAN KAWASAN MINAPOLITAN BERKELANJUTAN BERBASIS PERIKANAN BUDIDAYA AIR TAWAR DI KABUPATEN MAGELANG Wibowo, Arif Budi Program Studi Magister Ilmu Lingkungan, Pascasarjana, Universitas Diponegoro Semarang Anggoro, Sutrisno Program Studi Doktor Manajemen Sumberdaya Pantai, Pascasarjana, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Yulianto, Bambang Program Studi Doktor Manajemen Sumberdaya Pantai, Pascasarjana, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Sustainability Status of  Ecological Dimensions in Development of Sustainable Minapolitan Region Based on Freshwater Aquaculture in Magelang Regency     ABSTRAK   Pengembangan kawasan minapolitan berkelanjutan adalah pembangunan kawasan yang mengintegrasikan antara dimensi ekologi, dimensi ekonomi, dimensi sosial, dimensi infrastruktur, dan dimensi hukum dan kelembagaan. Tujuan dari penelitian ini adalah untuk: 1) mengkaji status keberlanjutan dimensi ekologi dalam pengembangan kawasan minapolitan, 2) mengkaji atribut yang sensitif berpengaruh terhadap nilai indeks dan status keberlanjutan dimensi ekologi pengembangan kawasan minapolitan serta 3) merumuskan prioritas kebijakan yang bisa diterapkan untuk pengembangan kawasan minapolitan berkelanjutan di Kabupaten Magelang. Penelitian ini dilaksanakan pada bulan Mei sampai dengan September 2014 berlokasi di tiga kecamatan (Sawangan, Mungkid dan Muntilan) di Kabupaten Magelang. Responden sebagai sumber informasi berasal dari unsur pemerintah, pembudidaya, dan unsur akademisi yang dipilih menggunakan teknik purposive random sampling. Analisa data penentuan status dan faktor pengungkit menggunakan metoda  RAP-multidimensi, sedangkan untuk penentuan prioritas kebijakan menggunakan teknik Analitycal Hierarchy Proses (AHP). Dari hasil penelitian diperoleh bahwa status keberlanjutan dimensi ekologi dalam pengembangan kawasan minapolitan Kabupaten Magelang berada pada status cukup berkelanjutan (50-70%). Strategi untuk peningkatan status keberlanjutan dilakukan dengan perbaikan pada atribut yang sensitif berpengaruh signifikan terhadap nilai dan status berkelanjutan.   Kata kunci : RAP-Multidimensi, RAP-fish, faktor pengungkit, AHP, perikanan budidaya air tawar   Minapolitan sustainable development is development of the area that integrates between the ecological dimension, economic dimension, the social dimension, the dimension of infrastructure, and the legal and institutional dimensions. The purposes of this study were: 1) to determine the status of sustainability of ecological dimension, 2) to determine sensitive attributes affecting the index value and status of ecological dimension sustainability and 3) formulating  policy priorities that can be applied  to the development of sustainable minapolitan development in Magelang regency.This study was conducted in May to September 2014 in three districts (Sawangan, Mungkid, and Muntilan) of  Magelang. Respondents as a source of information came  from the government, fish farmers, and academicians . They were selected using purposive random sampling technique. Status of sustainability and the lever factor were analysed using RAP-multidimensional method, whereas for formulating policies using techniques of Analitycal Hierarchy Process (AHP). The result showed that the ecological dimension is in the status of sustainable enough (50-70%). Strategies to increase the status of  sustainability were realized by repair the sensitive attribute significantly affect on the value and sustainable status. Keywords : RAP-Multidimensional, RAP-fish, leverage factor, AHP, freshwater aquaculture Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9330 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2778 2012-03-28T14:01:34Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Dispersion of Fine Shrimp (Metapenaeus elegans de Man 1907) on Segara Anakan Lagoon Cilacap Central Java Saputra, Suradi Wijaya Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang Jl. Prof. Soedharto, SH Semarang The research of the dispersion of fine shrimp (Metapenaeus elegans de Man 1907) was held on Segara Anakan Lagoon, Cilacap Central Java. Sampling was collected systematically during survey from February to December 2004. Based on habitat condition and the distribution of Apong (small size set net) fishing units, study area was divided into three zone : the West, Central and the East Zone. Results showed that fine shrimp caught along the year, was distributed to all Segara Anakan waters. M. elegans catched more in Donan river waters (East zone). Shrimp caught in the lagoon (West zone) was lagger in size than those collected from other zone and they were in the maturing reproductive status. Specimens caught from Tritih Kulon and west Kutawaru were reconded on the smallest. Spawning occurred along the year, with peak seasons in May. The spawning ground in the West Zone, is mainly the lagoon of East Karanganyar.   Key word : M. elegans, dispersion, Segara Anakan Lagoon Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2778 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/63189 2025-04-15T08:09:35Z saintek:RSA

nmb a2200000Iu 4500 "241229 2024 eng " 2549-0885 1858-4748 dc Mardiana, Tri Yusufi Prodi Budidaya Perairan, Fakultas Perikanan, Universitas Pekalongan Linayati, Linayati Maulidiya, Elsa Yahya, Muhammad Zulkham Handayani, Handayani Aminuddin, Nur Masita Penelitian ini ditujukan untuk menguji efektivitas ekstrak daun Rhizopora mucronata dalam meningkatkan biomassa mutlak ikan kerapu cantang serta menentukan dosis optimal yang memberikan hasil terbaik. Mengaplikasikan penelitian eksperimental dengan Rancangan Acak Lengkap (RAL), meliputi 4 perlakuan dan 3 replikasi per perlakuan ditambah dengan dosis ekstrak daun R.mucronata, yaitu pakan 0 mg/kg(A), 1,5 mg/kgpakan (B), 1,7 mg/kgpakan (C), 1,9 mg/kgpakan (D). Parameter yang diamati adalah pertumbuhan biomassa absolut, Pertumbuhan spesifik (SGR), Rasio Pemanfaatan Pakan (FCR), Efisiensi pakan (EP), Survival rate (SR) dan kualitas air. Ikan kerapu diberikan pakan sebanyak 3% per hari dan frekuensi pakan sebanyak 3 kali sehari selama 30 hari. Hasil penelitian menunjukan bahwa ikan kerapu yang diberi perlakuan daun R.mucronata 1,7 mg/kg pakan menghasilkan rerata pertumbuhan tertinggi sebesar 24,19 g dengan laju harian 2,69%, FCR 1,09, EP 91%, sintasan 100%, suhu 28–29 °C, pH 7,6–7,9 , salinitas 29–31 ppt dan DO 7,2–7,7 ppm. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-31 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/63189 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 4 (2024): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/63189/205858 Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/38254 2021-11-30T11:46:08Z saintek:RSA

nmb a2200000Iu 4500 "210828 2021 eng " 2549-0885 1858-4748 dc CHARACTERISTICS OF TUNA, SMALL TUNA AND SKIPJACK (TTS) FISHERY IN KUTARAJA OCEAN FISHING PORT, ACEH Arnenda, Gussasta Levi LOKA RISET PERIKANAN TUNA Rochman, Fathur LOKA RISET PERIKANAN TUNA Biology; Catch Per Unit effort; fishing gear; little tuna; Skipjack Kutaraja Ocean Fishery Port is the oldest port in Banda Aceh City, Lampulo. Fishery resources are a new potential in the regional economic development of Aceh province. Fish resources that have great potential are from the large pelagic fish groups, including Tuna, Small Tuna and Skipjack (TTS) . Fishery characteristics are used to carry out sustainable fishing. This research was conducted at PPS Kuta Raja, Aceh for one year. Data collection was carried out directly through site surveys and interviews with related fisheries actors. Biological data and capturing aspects were carried out using a stratifield random sampling system by placing enumerators. The results showed that the production of TCT at PPS Kutaraja was dominated by 2 fishing gears, purse seine and hand lines. Based on the results of enumeration in 2020, the estimated total production of tuna skipjack and small tuna at PPS Kuta Raja reaches 11,520 tons. The highest total estimated fish catch is skipjack tuna (Katsuwonus pelamis) (SKJ) 5,802 tons, Bullet tuna (Auxis rochei)(BLT) 2814 tons, Yellow fin  (Thunnus albacares) (YFT) 2,452 tons, Krai Tongkol (Auxis thazard) (FRI) 448 tons, and Eastern little tuna (Euthynnus affinis) (KAW) 1,745 tonnes. All of the fish caught were dominated by immature fish. So it is very necessary to evaluate the use of fishing gear or the licensing of FADs. The monthly CPUE distribution pattern is the same, where in August it reaches the highest CPUE and in October it reaches the lowest CPUE value. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/38254 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/69817 2025-04-15T08:09:35Z saintek:RSA

nmb a2200000Iu 4500 "241231 2024 eng " 2549-0885 1858-4748 dc SEBARAN KEJADIAN DAN TEKNIK PENANGANAN MAMALIA LAUT TERDAMPAR DI PROVINSI SULAWESI BARAT Anggara, Dimas Wahyu Balai Pengelolaan Sumber Daya Pesisir dan Laut Makassar Kantor BPSPL Makassar, Jl. Makmur Daeng Sitakka No. 129 Kab. Maros Provinsi Sulawesi Selatan Ardy, Ardy Balai Pengelolaan Sumber Daya Pesisir dan Laut Makassar Kantor BPSPL Makassar, Jl. Makmur Daeng Sitakka No. 129 Kab. Maros Provinsi Sulawesi Selatan Rini, Indri Putri Sekar Balai Pengelolaan Sumber Daya Pesisir dan Laut Makassar Kantor BPSPL Makassar, Jl. Makmur Daeng Sitakka No. 129 Kab. Maros Provinsi Sulawesi Selatan Jakasukmana, Munandar Balai Pengelolaan Sumber Daya Pesisir dan Laut Makassar Kantor BPSPL Makassar, Jl. Makmur Daeng Sitakka No. 129 Kab. Maros Provinsi Sulawesi Selatan Yusma, Andi Muh Ishak Balai Pengelolaan Sumber Daya Pesisir dan Laut Makassar Kantor BPSPL Makassar, Jl. Makmur Daeng Sitakka No. 129 Kab. Maros Provinsi Sulawesi Selatan Yudiarso, Permana Balai Pengelolaan Sumber Daya Pesisir dan Laut Makassar Kantor BPSPL Makassar, Jl. Makmur Daeng Sitakka No. 129 Kab. Maros Provinsi Sulawesi Selatan Ain, Churun Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof Jacub Rais, Tembalang, Semarang, Indonesia 50275 Selama dekade terakhir ini, informasi tentang kejadian mamalia laut terdampar cukup sering terjadi di Indonesia, salah satunya di wilayah Sulawesi Barat. Kecepatan dan ketepatan dalam melakukan tindakan penanganan sesuai dengan kondisi mamalia laut (hidup atau mati) dapat memberikan banyak informasi yang akan berguna dalam melakukan pengelolaan pesisir dan laut. Penelitian ini bertujuan untuk menyusun basis data dan informasi sebaran dan teknik penanganan kejadian mamalia laut terdampar di Sulawesi Barat. Studi dilakukan melalui pengumpulan data secara langsung saat penanganan mamalia laut terdampar selama periode tahun 2022 – 2024. Data tersebut selanjutnya ditabulasi dengan Microsoft Excel dan dianalisis secara deskriptif kualitatif berdasarkan kode terdampar, selanjutnya dilakukan analisis secara spasial dengan bantuan software ArcMap untuk memvisualisasikan sebaran kejadian mamalia terdampar. Berdasarkan data penanganan mamalia laut terdampar selama periode tahun 2022 s/d 2024 di Sulawesi Barat, terdapat 4 kejadian mamalia laut terdampar diantaranya di Kabupaten Mamuju sebanyak 2 ekor, Kabupaten Pasangkayu sebanyak 1 ekor dan Kabupaten Polewali Mandar sebanyak 1 ekor, dengan total mamalia laut terdampar sebanyak 4 ekor. Seluruh mamalia laut tersebut terdampar dalam kondisi mati yaitu kode 2, 3, dan 4. Teknik penanganan yang dilakukan terhadap mamalia laut yang terdampar selama tahun 2022-2024 di Sulawesi Barat adalah dengan cara ditenggelamkan dan dikubur. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-31 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/69817 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 4 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11139 2020-04-17T19:22:44Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc PERBEDAAN SUHU PENGOLAHAN DENGAN METODE STEAM JACKETED SEDERHANA TERHADAP MUTU MINYAK DARI LIMBAH KEPALA IKAN MACKEREL Different Processing Temperatures of Simple Steam Jacketed Method toward Quality of Crude Fish Oil from Head Wasteof Mackerel Lestari, Rukmana Rahayu Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ibrahim, Ratna Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Riyadi, Putut Har Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kepala ikan Mackerel; Minyak ikan kasar; Steam jacketed sederhana   Proses pengolahan minyak ikan kasar dengan metode steam jacketed di salah satu perusahaan pengolahan hasil perikanan menggunakan bahan baku campuran limbah padat pengalengan ikan Mackerel dengan suhu yang tinggi 90-100 °C menghasilkan produk yang belum memenuhi persyaratan mutu minyak ikan secara nasional. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan suhu pengolahan minyak ikan kasar ≤ 85 °C dari kepala ikan Mackerel tanpa insang dengan metode steam jacketed sederhana terhadap mutu produknya serta untuk mengetahui suhu dan lama waktu pengolahan yang menghasilkan minyak ikan kasar yang memenuhi persyaratan mutu secara nasional maupun internasional. Materi penelitian berupa kepala ikan Mackerel tanpa insang. Penelitian dilakukan dengan metode eksperimental laboratoris. Percobaan dirancang dengan Rancangan Percobaan Kelompok dengan perlakuan suhu berbeda (85 °C, 75 °C, dan 65 °C). Masing-masing perlakuan diulang tiga kali. Variabel mutu yang diamati adalah asam lemak bebas, bilangan peroksida, bilangan iod, kadar air, rendemen dan nilai sensori, serta uji profil asam lemak untuk produk yang terbaik. Data dianalisis menggunakan ANOVA dan perbedaan diantara perlakuan diuji dengan Uji Tukey. Hasil penelitian menunjukkan bahwa perbedaan suhu pengolahan minyak ikan kasar dari kepala ikan Mackerel tanpa insang dengan metode steam jacketed sederhana memberikan pengaruh berbeda nyata terhadap nilai asam lemak bebas, bilangan peroksida, bilangan iod, dan rendemen, tetapi tidak menyebabkan perbedaan nyata terhadap nilai sensori. Mutu produk terbaik yaitu produk yang diolah pada suhu 65 °C selama 20 menit, produk tersebut mengandung asam lemak omega-3 dan omega-6.    The process of crude fish oil processing using the steam jacketed method in a fish product processing company which uses the raw material of solid mixed waste of canned Mackerel at 90-100 °C result in the products which have not fulfilled the requirement of national fish oil quality. The purpose of this research is to figure out the effect of processing temperature difference in the processing of crude fish oil below or at 85 °C from gill-less Mackerel fish head using the simple steam jacketed method on the quality of the processing products. This research is also intended to figure out the temperature and duration for the processing which produces the crude fish oil to fulfill both national and international quality standard.The research materials were gill-less Mackerel fish heads. The research was conducted using laboratory experimental method. The experiments were designed into Randomized Block Design with difference temperatures (85 °C, 75 °C, and 65 °C). Each of the temperature treatments was made in triplicate. The quality variables to be observed were free fatty acid value, peroxide value, iodine value, moisture content, yield and sensory value. The quality variables which made the best treatment was then tested using the fatty acid profile test for the best crude fish oil product. The data obtained were analyzed using ANOVA, and the difference among the treatments were tested using HSD test.The research result showed that the temperature difference in crude fish oil processing from gill-less Mackerel fish heads using the simple steam jacketed method gave significantly different effect on free fatty acid value, peroxide value, iodine value, and yield. However, did not give significantly different effect on sensory value. The best product quality was obtained from the product which was processed at 65 °C for 20 minutes, the product contains fatty acid omega-3 and omega-6.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11139 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/6759 2014-04-25T17:01:16Z saintek:RSA

nmb a2200000Iu 4500 "120222 2012 eng " 2549-0885 1858-4748 dc A Study on The Domestication of Tiger Snail (Babylonia spirata l) in An Abanont Brackish Water Pond at Different Stocking Denstities Rejeki, Sri Susilowati, Titik Tiger snail (Babylonia spirata L) is one of molllucs family which has a good economic value both for local and international market. This study was aimed to find out the effects of different stocking densities on the specific growth rate and survival rate of tiger snail cultured in an abandon brackish water pond. A completely randomized design was applied in this research. The treatments were A (18 tiger snail/0,15m2), B (22 tiger snail/0,15m2), C (26 tiger snail/0,15m2), D (30 tiger snail/0,15m2), E (34 tiger snail/0,15m2).  Each treatment was repicated three times.  Plastic baskets at the size of 0.15 were used as a cage for holding system. Tiger snail at initial average body weight of  8 gram approximately was used as tested animal. The study was carried out at an abandon brackish water pond Desa Tapak Kecamatan Semarang Barat, Central java Province from May – July 2007. The results show that different stocking densities affected the specific growth rate and food conversion ratio of tiger snail significantly.  Stocking density of 18 snail/0.15 m2 gave the highest specific growth rate (2.07%/day) and food conversion ratio of 1,747. Keyword: Domestication, tiger snail, stocking density, abandon brackish water pond Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6759 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/33811 2022-06-18T09:12:11Z saintek:RSA

nmb a2200000Iu 4500 "211210 2021 eng " 2549-0885 1858-4748 dc UJI BAKU MUTU PROBIOTIK IKAN BERBAHAN DASAR AIR LIMBAH CUCIAN BERAS, KULIT BAWANG PUTIH (Allium sativum), DAN FERMENTASI EKSTRAK DAUN KELOR (Moringa oleifera) Atho'illah, M. Fadila, Mara Dwi Junaedi, Abdus Salam air limbah cucian beras; Allium sativum; fermentasi Moringa oleifera; probiotik Probiotik merupakan mikroba hidup dengan sifat menguntungkan. Jumlah air limbah cucian beras sangat melimpah dan memiliki kandungan nutrisi yang cukup banyak, terutama karbohidrat sebesar 85-90%. Air limbah kulit bawang putih berfungsi untuk menghambat pertumbuhan bakteri seperti Escherichia coli, Staphylococcus aureus, dan Salmonella enteritidis. Daun kelor (Moringa oleifera) merupakan tumbuhan yang mempunyai kandungan protein sebesar 27-29%. Tujuan penelitian ini adalah mengevaluasi kombinasi terbaik probiotik yang dapat digunakan dalam budidaya perikanan guna meningkatkan pertumbuhan dan kualitas ikan. Penelitian ini menggunakan rancangan acak faktorial (RAF) 4x4 dengan 2 faktor. Faktor pertama berupa kultur fermentasi ekstrak daun kelor yang terdiri atas 4 perlakuan, yaitu 10%; 20%; 30%; dan 40% dengan kombinasi antara air limbah cucian beras dan air limbah kulit bawang putih sebesar 1:1. Faktor kedua berupa lama waktu fermentasi probiotik yang terdiri atas 4 perlakuan, yaitu 1; 2; 3; dan 4 minggu. Kontrol negatif berupa air limbah cucian beras dan kulit bawang putih dengan perbandingan 1:1 dan kontrol positif dengan penambahan probiotik EM4 berkonsentrasi 10%. Setiap perlakuan diuji menggunakan 3 pengulangan. Metode penelitian ini menggunakan metode observatif. Hasil penelitian menunjukkan bahwa probiotik ikan yang diamati menghasilkan pelet pada permukaan dasar wadah fermentasi, gelembung gas, perubahan warna menjadi cokelat kuning, perubahan bentuk wadah fermentasi, bau khas seperti bau tape, dan tidak adanya kontaminasi jamur.   Probiotics are a living microbe with a beneficial nature. Rice dishwater is plentiful and has a good amount of nutrition, especially a carbohydrate of 85-90%. Garlic skin wastewater helps prevent the growth of bacteria such as Escherichia coli, Staphylococcus aureus and Salmonella enteritidis. Kelor (Moringa oleifera) is a plant that has a protein content of 27-29%. The aim of this study is to evaluate the best possible combination of probiotics that can be used in fisheries cultivation to promote the growth and quality of fish. The study uses randomly vectorial design 4x4 with 2 factors. The first factor is the four treatments fermentation culture extract of kelor leaves, which is 10%; 20%; 30%; and 40% by the combination of rice dishwater and garlic wastewater by 1:1. The second factor is long-term probiotic fermentation, consisting of 4 treatments, 1; 2; 3; and 4 weeks. The negative control of rice and garlic skin dishwater by comparison 1:1 and positive control with an additional probiotic EM4 concentrates 10%. Each treatment is tested using three repetitions. This research method using observative. Research indicates that probiotic fish observed produce pellets on the ground surfaces of fermentation containers, gas bubbles, discoloration to yellow chocolate, fermentation containers change in shape, typically smells like tape, and an absence of fungal contamination.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-12-10 06:13:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33811 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 4 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/65071 2025-04-25T14:22:56Z saintek:RSA

nmb a2200000Iu 4500 "250416 2025 eng " 2549-0885 1858-4748 dc Syifa, Nor Universitas Lambung Mangkurat Solihin, Ahmad Aisyah, Siti Nur Siswanto, Siswanto Ikan papuyu (Anabas testudineus) membutuhkan pakan yang optimal untuk pertumbuhannya, dan maggot (Hermetia illucens) merupakan salah satu alternatif pakan bernutrisi tinggi. Penelitian ini bertujuan untuk menganalisis pengaruh talas dan ampas tahu sebagai media budidaya terhadap pertumbuhan maggot dan menganalisis pengaruh pemberian maggot sebagai pakan alternatif terhadap pertumbuhan benih ikan papuyu. Metode yang digunakan adalah fermentasi media budidaya maggot dan pengamatan pertumbuhan dengan Rancangan Acak Lengkap (RAL) dengan lima perlakuan dan tiga ulangan yaitu (A) 100% talas, (B) 25% talas + 75% ampas tahu, (C) 50% talas + 50% ampas tahu, (D) 75% talas + 25% ampas tahu dan (E) 100% ampas tahu. Hasil penelitian menunjukkan bahwa pertumbuhan populasi maggot tertinggi terdapat pada perlakuan E (3.990 ekor), sedangkan pertumbuhan bobot relatif dan pertumbuhan panjang relatif maggot tertinggi terdapat pada perlakuan D dengan peningkatan sebesar 2,77% dan 29,64%. Sedangkan pertumbuhan bobot mutlak ikan papuyu tertinggi ada pada perlakuan B (0,59 gram) dan pertumbuhan panjang mutlak ikan papuyu tertinggi ada pada perlakuan D (0,19 cm). Hasil ini menunjukkan bahwa kombinasi talas dan ampas tahu yang difermentasi dapat dijadikan sebagai media budidaya maggot dan memberikan pengaruh terhadap pertumbuhan maggot dan ikan papuyu. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-04-16 03:41:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/65071 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 1 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13189 2020-04-17T19:24:27Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc PERFORMA PERTUMBUHAN IKAN LELE(Clarias gariepinus, Burchel) YANG DIBUDIDAYAKAN SECARA SUPERINTENSIF MELALUI APLIKASI SISTEM IMTA DENGAN CACING Tubifex DI BOYOLALI Growth Performances of Catfish (Clarias gariepinus, Burchel) cultivated superintensif through Application of IMTA with Tubifex worm System in Boyolali Hastuti, Sri Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Subandiyono, Subandiyono Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Sarjito, Sarjito Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro sistem imta; lele; Boyolali; efisiensi produksi   Usaha  budidaya ikan di Boyolali mampu memberikan pendapatan dari usaha budidaya lele dengan hasil yang menjajikan. Usaha lele tersebut mampu memberikan kontribusi terhadap pendapatan rumah tangga sebesar 54% hingga 100%. Nilai R/C rasio lebih besar 1, yang berarti  bahwa usaha tani budidaya ikan lele tersebut efisien dan layak untuk dikembangkan. Ketenaran Kabupaten Boyolali akan hasil budidaya ikan lele yang menjajikan secara ekonomi telah memacu penduduknya untuk memproduksi ikan lele.Hasil produksi ikan lele di Boyolali secara nyata dipengaruhin oleh variabel luas lahan dan variabel benih lele.Oleh karena itu, keterbatasan lahan yang dimiliki oleh para usahatani Sumber Rejeki tersebut menjadi permasalahan yang perlu dipecahkan.Untuk memaksimumkan produksi lele dengan lahan terbatas tersebut dapat dilakukan dengan teknologi IMTA (Integrated Multi TrophicAquaculture). Teknologi ini menggabung ikan lele dengan cacing tubifec, sehingga akan menghasilkan ikan lele dan tubifek.Namun kegiatan budidaya sistem IMTA yang menggabungkan antara ikan lele dengan cacing Tubifek masih tergolong belum pernah dilakuakan oleh para petani.Sistem IMTA ini memiliki beberapa kelebihan, yaitu (1) meningkatkan efisiensi input dan output yang menghasilkan kenaikan nilai ekonomis, karena dihasilkan ikan lele dan cacing tubifek. (2) memperbaiki atau meminimalisir limbah buangan kegiatan budidaya ikan, (3) meningkatkan kemanfaatan limbah kegiatan budidaya ikan yang potensial sebagai pupuk organik untuk proses produksi Tubifec.  Benih lele berukuran bobot 1,5±0,1 g dipelihara dengan kepadatan 500 ekor per meter persegi.  Selama pemeliharaan 3 bulan, ikan diberi pakan pelet komersial untuk lele secara ad satiationdengan frekwensi dua kali sehari.  Pada bagian atas kolam dilengkapi dengan talang bertingkat sebagai tempat pemeliharaan tubifec.  Air dari kolam dipompa ke atas talang atau wadah cacing tubifec.  Hasil pemeliharan diperoleh ikan lele dengan pertumbuhan relatif sebesar 72,96 g% perhari dan angka kelngsungan hidup mencapai 96,66% dan nilai FCR sebesar 1.  Selama satu bulan, Tubifec mengalami pertumbuhan sebesar 66,66%       Fish farming in Boyolali are able to provide income from catfish culture with promising results. The catfish effort to contribute to the household income by 54% to 100%.  Rated R / C ratio is greater than 1, which means that the catfish farming are efficient and feasible to develop.  The Boyolali was known as location of catfish production and  that will be farmed economically promising has spurred citizens to produce catfish.  The production of catfish in Boyolali significantly was affectedby land area and seed catfishvariable.  Therefore, the limited land owned by the farmers “Sumber Rejeki” isa problem that needs to be solved. To maximize the production of catfish with limited space can be done throughIMTAtechnology (Integrated Multi TrophicAquaculture). This technology merge catfish with tubifex worms, so it will produce catfish and tubifex. However, farming activities with IMTA system that combines catfish with worms tubifex still relatively rare by farmers.   IMTA system has several advantages, (1) improve the efficiency of inputs and outputs that result in increased economic value, as produced catfish and worm tubifex. (2) correct or minimize waste from fish farming activities, (3) increase the utilization of the fish farming waste as an organic fertilizer for the tubifex production process.  Sized catfish seed weight of 1.5±0.1 g maintained at densities of 500 individuals per square meter. During the three-month rearing time, fish fed a commercial pellet for catfish ad satiation with a frequency of twice a day.At the top of the catfish pondwas put the equipment with arranged adouble level drine pipe as a tubifec pond culture. The water from the catfish pond is pumped to the top drine pipe or worm tubifecrearing tank. Results of the catfish farming wtih IMTA system were relative growth rate of catfish i.e. 72.96 g% daily and survival rate  reached 96.66% and FCR value is 1. During one month, tubifex grow were66.66%  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13189 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21412 2020-04-17T19:29:32Z saintek:RSA

nmb a2200000Iu 4500 "180826 2018 eng " 2549-0885 1858-4748 dc STUDI KASUS PENANGKAPAN IKAN YANG RAMAH LINGKUNGAN DI PANGKALAN PENDARATAN IKAN (PPI) CELONG, KABUPATEN BATANG (Case Study of Eco-Friendly Fishing Gears at Celong Fishing Port, Batang Regency) Kurohman, Faik Departemen Perikanan Tangkap Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Chairunnisa, Shasa Departemen Perikanan Tangkap Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Bambang, Azis Nur Departemen Perikanan Tangkap Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Ramah Lingkungan; CCRF; Arad; Gill net; Trammel net Peristiwa overfishing semakin marak terjadi di beberapa wilayah perikanan Indonesia akibat penggunaan alat tangkap yang merusak (destruktif). Jika hal ini terus dilakukan, maka kelestarian sumberdaya dikhawatirkan akan semakin menurun. Maka dari itu dibutuhkan strategi agar usaha perikanan tangkap ramah lingkungan secara ekologi dengan cara mengidentifikasi alat tangkap berdasarkan kriteria Code of Conduct for Responsible Fisheries (CCRF). Tujuan dari penelitian ini adalah untuk menganalisis alat tangkap ramah lingkungan di PPI Celong berdasarkan Sembilan kriteria CCRF. Metode penelitian yang digunakan adalah deskriptif mengenai alat penangkapan ikan yang ramah lingkungan di Pangkalan Pendaratan Ikan (PPI) Celong pada bulan Desember 2017 dengan wawancara dan observasi lapangan. Responden diambil secara sensus sebanyak 121 orang. Hasil analisis ramah lingkungan menghasilkan skor 17,87 pada arad, 27,44 pada trammel net, dan 28,40 pada gill net. Kesimpulan yang diperoleh dari penelitian ini adalah status alat tangkap arad tidak ramah lingkungan, trammel net ramah lingkungan, dan gill netsangat ramah lingkungan. Arad termasuk dalam kategori tidak ramah lingkungan karena cara pengoperasiannya yang tidak selektif dan merusak dasar perairan.   Overfishing are increasingly prevalent in some Indonesian fishery areas due to the use of destructive fishing gear. If it continues, then the sustainability of resources feared will decrease further. Therefore a strategy is needed for eco-friendly fishery business by identifying fishing gear based on the criteria of Code of Conduct for Responsible Fisheries (CCRF). The purpose of this research is to analyze the eco-friendly fishing gear at Celong Fishing gear based on Nine criteria of CCRF. The research method used is descriptive of eco-friendly fishing gear at Celong Fishing Port in December 2017 with interviews and observations. Respondents who were taken by census was 121 respondents. The results of eco-friendly analysis resulted in a score 17.87 for  arad, 27.44 for trammel net, and 28.40 for gill net. The conclusions obtained from this research are arad status is not eco-friendly, trammel net is eco-friendly, and gill net is very eco-friendly. Arad is categorized as eco-unfriendly due to its non-selective way of operating and damaging the sea base. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21412 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6812 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc The Utilization Lizardfish As Base Material for Fish Jelly Processing With Arrrowroot Starch Addition Riyadi, Putut Har Staf Pengajar Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Processing of lizardfish (Saurida tumbil) for fish jelly product one of alternative product diversification that expect to be an acceptable product to the society. In Japan, Lizardfish has become generally used as raw material for producing fish jelly product. Meanwhile, arrow roots starch is considered to be the best choice for alternative substitute material of wheat in large scale. This research was aimed to observed the proper heating temperature and concentration of arrowroot starch and effect of the period of storage on quality of the fish jelly product. The research using laboratoriy experimental method. The result showed that different concept  of  arrowroot starch gave significant  effect on the gel strength,  elasticity, WHC, whiteness,  expcep  for  pH,  folding  test  (p<0,05).  The  concentration  of  arrowroot  starch  (10%)  gave highest gel strength on optime heat temperature 90 oC. The lenght of storage had significant effect to the quality  of  fish  jelly  product.  The  longer  the  storage  time  to  be  held,  lower  the  value  gel  strength, elasticity, WHC, whiteness and folding test.   Key words : Lizardfish, fishjelly product, arrowroot starch Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6812 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/41594 2022-04-19T17:13:22Z saintek:RSA

nmb a2200000Iu 4500 "220329 2022 eng " 2549-0885 1858-4748 dc THE EFFECT OF KAPPA CARRAGEENAN ADDITION ON THE EMULSION STABILITY OF MILKFISH (Chanos chanos) SAUSAGE Meliana, Edita Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Diponegoro Agustini, Tri Winarni Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Diponegoro Kurniasih, Retno Ayu Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Diponegoro emulsion stability; fish sausage; kappa carrageenan; milkfish Fish sausage is a processed fish product in the form of an emulsion, so that the stability of the emulsion is one of the most important factors for the success of the product. The aim of this study is to find out the effect of kappa carrageenan as a hydrocolloid in increasing the emulsion stability and determining the best concentration of kappa carrageenan based on the value of emulsion stability and the characteristics of milkfish sausage. The research method used was experimental laboratories with a completely randomized one-factor design using ANOVA, which was then continued with the HSD test. Organoleptic value data were analyzed using the Kruskal-Wallis and Mann-Whitney tests. The concentrations of kappa carrageenan used were 0%;0.5%;1%;1.5 with 3 repetitions. The results of the study show that kappa carrageenan addition has a significant effect (p<0.05) on the value of emulsion stability, sensory, moisture content, gel strength, and water holding capacity. The concentration of 1% kappa carrageenan (P2) was the best concentration with quality criteria: sensory of 8.14<µ<8.32, moisture content of 63.02%, water holding capacity of 55%, gel strength of 1200.14 g.cm, and emulsion stability of 83.23. Compared to other treatments, fish sausage with the addition of 1% kappa carrageenan has the brightest appearance according to the specific color of the product, has a chewy texture and solid but not hard, and has the highest value of emulsion stability. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/41594 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/41594/128143 Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/72154 2025-08-04T07:40:12Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Purwangka, Fis Nuranisah, Reghina Yasmine Solihin, Akhmad Erwiantono, Erwiantono Rizal, Daisy Rahma Tingkat pendidikan nelayan di Pelabuhan Perikanan Pantai (PPP) Tegalsari yang didominasi lulusan Sekolah Dasar (SD) berdampak pada rendahnya pemahaman mereka terhadap kesehatan, terutama dalam hal pemeriksaan kesehatan sebelum melaut. Penelitian ini bertujuan untuk mengidentifikasi tingkat pemahaman nelayan terhadap kesehatan, menganalisis sistem pendapatan dan pengeluaran nelayan untuk keperluan kesehatan, serta merekomendasikan strategi peningkatan kesehatan nelayan. Metode yang digunakan yaitu studi kasus eksplanatori dengan metode pengumpulan data survei lapangan melalui kuesioner dan wawancara kepada nelayan. Selanjutnya dianalisis menggunakan SWOT untuk membuat strategi. Hasil menunjukkan bahwa meskipun nelayan memiliki pendapatan yang cukup tinggi, alokasi pengeluaran mereka untuk kesehatan masih sangat kecil, berkisar antara 0,11% hingga 0,98% dari total penghasilan. Selain itu, pemanfaatan layanan BPJS Kesehatan belum optimal akibat kurangnya pemahaman serta kendala administratif. Analisis SWOT yang dilakukan menunjukkan bahwa peluang eksternal, seperti regulasi pemerintah yang menjamin hak kesehatan nelayan dan ketersediaan fasilitas medis di sekitar pelabuhan, lebih mendukung dibandingkan kekuatan internal yang dimiliki oleh nelayan. Di sisi lain, ancaman seperti persaingan pasar ikan dan kerusakan fasilitas pelabuhan dapat menghambat peningkatan kualitas kesehatan nelayan. Oleh karena itu, diperlukan strategi yang meliputi peningkatan edukasi kesehatan berbasis komunitas, optimalisasi fasilitas kesehatan di pelabuhan, serta penyuluhan terkait pemanfaatan BPJS Kesehatan. Dengan penerapan strategi ini, diharapkan nelayan dapat lebih sadar akan pentingnya kesehatan, meningkatkan akses mereka terhadap layanan medis, serta pada akhirnya meningkatkan kesejahteraan mereka secara keseluruhan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/72154 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15287 2020-04-17T19:25:34Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc SKRINING SENYAWA FITOKIMIA RUMPUT LAUT Sargassum sp. DAN AKTIVITASNYA SEBAGAI ANTIBAKTERI TERHADAP Staphylococcus aureus dan Eschericia coli (Phytochemical Compound Screening of Sargassum sp. and It’s Activity as Antibacterial Against Staphylococcus aureus and Escherichia coli) Pangestuti, Indria Eka Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Sumardianto, Sumardianto Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Amalia, Ulfah Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rumput Laut Sargassum sp; Fitokimia, Antibakteri; Staphylococcus aureus; dan Eschericia coli   Bakteri S. aureus dan E. coli merupakan bakteri patogen yang sering menjadi masalah pada produk makanan terutama pada produk perikanan, sehingga diperlukan senyawa antibakteri yang efektif untuk menghambat pertumbuhannya. Rumput laut Sargassum sp. memiliki senyawa bioaktif yang dapat berfungsi sebagai senyawa antibakteri, seperti flavonoid, saponin, tannin, dan fenol. Tujuan dari penelitian ini adalah untuk mengetahui kandungan fitokimia pada ekstrak rumput laut Sargassum sp. dan mengetahui pengaruh penambahan konsentrasi terhadap pertumbuhan bakteri S. aureus dan E. coli. metode yang digunakan pada penelitian ini adalah eksperimental laboratoris dengan menggunakan model Rancangan Acak Lengkap (RAL). Parameter pengujian yang dilakukan adalah uji fitokimia kuantitatif ekstrak rumput laut Sargassum sp. dan zona hambat ekstrak rumput laut Sargassum sp. menggunakan metode difusi sumur dengan penambahan konsentrasi 0%, 5%, 10%, 15% dan dilakukan 3 kali ulangan. Data hasil uji zona hambat dianalisis menggunakan uji ANOVA (Analysis Of Varians) dan Beda Nyata Jujur (BNJ). Hasil uji fitokimia kuantitatif ekstrak rumput laut terbaik diperoleh pada senyawa saponin yaitu sebesar 3,50±0,06 % sedangkan hasil terendah yaitu fenol 0,09±0,05 %. Hasil penelitian zona hambat menggunakan metode difusi sumur menghasilkan diameter pada bakteri S. aureus berkisar 1,527±0,326 mm sampai 6,323±0,27 mm, sedangkan diameter pada bakteri E.coli berkisar 0±0 mm sampai 3,58±0,33 mm. Berdasarkan hasil tersebut, penambahan konsentrasi ekstrak rumput laut Sargassum sp. memberikan pengaruh terhadap diameter zona hambat bakteri S. aureus dan E. coli. Kata kunci: Rumput Laut Sargassum sp., Fitokimia, Antibakteri, Staphylococcus aureus, dan Eschericia coli   S. aureus and E. coli bacteria is a pathogenic bacteria that often cause problems in food products especially in fishery products, so that an effective antibacterial compound is needed to inhibit their growth. Sargassum sp. seaweed has a bioactive compound that can be functioned as antibacterial compound, such as flavonoid, saponin, tannin, and phenol. The aim of this research was to know the phytochemical content in Sargassum sp. seaweed extract and to know the effect of concentration added to the S. aureus and E. coli bacteria growth. This research was using experimental laboratories method with Completely Randomized research Design (CRD). The conducted testing parameter were Quantitative Phytochemical Analysis and Inhibition Zone on Sargassum sp. seaweed extract using diffusion well method with 0%, 5%, 10%, and 15% added concentration for triplicates. The inhibition zone’s data were analyzed using ANOVA (Analysis of Variance) and Honestly SignificaNt Difference (HSD). The best quantitative phytochemical results of seaweed extract was found in the saponin compound which was 3,50 ± 0,06 %while the lowest was found in phenol which was 0,09±0.05 %. The inhibition zone research results using diffusion well method resulted on the S. aureus bacteria’s diameter which was about 1,527±0,326 mm until 6,323 ± 0,27 mm, while E.coli bacteria has about 0±0 mm until 3,58±0,33 mm diameter. Based on the research results above, the concentration addition of Sargassum sp. seaweed extract gave effect to the inhibition zone’s diameter of S. aureus and E. coli bacteria.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15287 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22074 2020-04-17T19:30:39Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc POTENSI PANKREAS KAMBING SEBAGAI BATING AGENT ALAMI TERHADAP KARAKTERISTIK KULIT IKAN NILA (Oreochromus niloticus) TERSAMAK(Pancreas Potential Of Goat As A Natural Bating Agent On Tilapia (Oroeochromus niloticus) Leather) Cahyana, Muhammad Aziz Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Amalia, Ulfah Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suharto, Slamet Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kulit Ikan Nila; Bating Agent; Protease; Pankreas Kambing Pankreas kambing mengandung enzim proteolitik yang berpotensi sebagai bating agent dalam proses penyamakan kulit.Tujuan penelitian ini adalah mengetahui pengaruh penggunaan bating agent dari pankreas kambing terhadap karakteristik fisik kulit ikan nila tersamak dan mengetahui konsentrasi terbaik dari penggunaan bating agent pankreas kambing. Materi yang digunakan dalam penelitian ini adalah kulit ikan niladan pankreas kambing segar. Metode penelitian ini bersifat experimental laboratories menggunakan Rancangan Acak Lengkap (RAL) dengan tiga kali pengulangan dengan 4 konsentrasi bating agent  yaitu (0,5%, 1%, 1,5% dan 2%) kulit ikan tersamak diuji dengankekuatan tarik, kemuluran, kekuatan sobek, kadar krom oksida, dan suhu kerut. Hasil penelitian menghasilkan bahan bating agent berpengaruh terhadap karakteristik kulit ikan tersamak (P<0,05). Konsentrasi bating agent sebesar 2% memberikan hasil yang terbaik sebagai berikut: kekuatan tarik 1300,45 N/cm², kemuluran 87,70%, kekuatan sobek 273,90 N/cm², kadar krom oksida 3,46 %, dan suhu kerut 99,75°C. Kulit ikan nila tersamak hasil penelitian semua perlakuan  memenuhi persyaratan SNI 06-4586-1998 kecuali untuk parameter kemuluran tidak memenuhi syarat.   Goat pancreas, containing proteolytic enzymes which the potential as a bating agent in the process of tanning the skin. The purpose of this study was to determine the effect of using bating agent from goat pancreas on the physical characteristics of tilapia skin and knowing the best concentration of using the goat pancreatic agent. The material used in this study is the skin of tilapia and fresh goat pancreas. This research method is experimental laboratories using Completely Randomized Design (CRD) with three repetitions with 4 concentrations of bating agent namely (0.5%, 1%, 1.5% and 2%) the skin of tanned fish is tested with tensile strength, elongation, tear strength, chrome oxide content, and wrinkle temperature. The results of the study resulted in bating agent material affecting the characteristics of tanned fish skin (P <0.05). Bating agent concentration of 2% gave the best results as follows: tensile strength 1300.45 N / cm², elongation 87.70%, tear strength 273.90 N / cm², chrome oxide content 3.46%, and wrinkle temperature 99, 75 ° C. The results of this study produced a total nitrogen of 2.65% of the goat pancreas which has great potential to be used as bating material. The skin of tanned tilapia from the results of this study meets the requirements of SNI 06-4586-1998 except for elongation parameters that do not meet the requirements. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22074 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6826 2025-04-26T12:45:42Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc The effect of different density towards survival rate of Marble Goby (Oxyeleotris marmorata Blkr.) in closed transportation Arini, Endang Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Elfitasari, Tita Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Purnanto, Siwi Hadi Mahasiswa Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Marble Goby is a fresh water fish with high economic value. The marble goby grow-out business require fish seed  from various seedling Centres. To obtain such output require adequate seeds supply from many sources as well as appropriate transportation. The optimum density of Marble Goby seed in closed transportation is not yet known, therefore, a research on this issue is needed to ensure fish seed quality and survival rate. The aim of this study is to observe the effect of different densities on the survival rate of Marble Goby sized 100 g/ind. and to observe the best density during their transportation using 10 hour – closed system. This study applied a  complete random design method with 4 density treatments, which consist of 6 ind./L, 8 ind./L, 10 ind./L, and 12  ind./L. Each treatment was subject to three replications. Data used were survival rate, energy, activity, and water quality. The study found that different density resulted in significant effect (P < 0.01) on the survival of marble goby seeds. Survival rates of each treatment are as follows: (A) 100%, (B) 95.83%, (C) 93.33%, and (D) 80.56%.  Treatment B with density rate of 8 ind/L provided the most reliable density related to the transportation of marble goby using a 10 hour – closed system.   Key words: marble goby, transportation, density, survival. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6826 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/15285 2017-07-20T11:58:00Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/76176 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Suryono, Jundi Putra Fisheries Science Study Program, Faculty of Agriculture, Sultan Ageng Tirtayasa University Pratama, Ginanjar Hasanah, Afifah Nurazizatul Spirulina sp. adalah mikroalga yang kaya akan senyawa bermanfaat, seperti protein, lemak, mineral, dan pigmen alami (fikosianin, β-karoten, dan klorofil) yang memiliki efek antioksidan. Berbagai macam kandungan yang dimiliki oleh Spirulina sp. sangat dipengaruhi oleh nutrisi dan lingkungan kultivasi. Nutrisi seperti pupuk walne merupakan nutrisi yang sering digunakan dalam kegiatan budidaya Spirulina sp. tetapi dikarenakan harganya yang kurang ekonomis menjadikan hal tersebut sebagai masalah tersendiri. Pupuk alternatif sudah banyak dikembangkan, beberapa bahan seperti magnesium, fosfat, urea, dan molase dapat dijadikan solusi nutrisi yang jauh lebih murah dibandingkan dengan pupuk walne. Metode penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 3 taraf perlakuan pupuk walne, pupuk buatan, dan pupuk campuran (walne dan buatan) dengan masing-masing 3 ulangan. Tahapan penelitian dibagi menjadi dua fase yaitu fase pertama merupakan proses kultivasi dan pemanenan, dilanjutkan dengan fase dua yaitu ekstraksi fikosianin. Hasil yang diperoleh adalah pada penelitian ini adalah laju pertumbuhan Spirulina sp. berjalan serupa hingga terjadi penurunan nilai optical density pada perlakuan penambahan pupuk buatan (P1) dan penambahan pupuk campuran (P2) di hari ke-21. Protein yang dihasilkan tidak berbeda nyata dengan nilai rata-rata tertinggi pada perlakuan penambahan pupuk buatan (P1) senilai 6,03%. Rendemen biomassa basah terbesar berada pada perlakuan penambahan pupuk walne (K) dengan nilai sebesar 0,09%. Rendemen fikosianin yang terbesar berada pada perlakuan penambahan pupuk campuran (P2) dengan nilai 33.48%. Konsentrasi fikosianin terbesar berada pada perlakuan penambahan pupuk walne (K) dan penambahan pupuk buatan (P1) dengan nilai 2.79%. Berdasarkan hasil yang diperoleh diketahui bahwa pupuk buatan memiliki efek yang serupa dengan pupuk walne dalam aspek kadar protein, rendemen biomassa basah, dan konsentrasi fikosianin. Sedangkan pupuk walne lebih optimal pada aspek laju pertumbuhan dibanding dengan pupuk buatan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/76176 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16830 2020-04-17T19:27:28Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc KEANEKARAGAMAN MOLUSKA BERDASARKAN TEKSTUR SEDIMEN DAN KADAR BAHAN ORGANIK PADA MUARA SUNGAI BETAHWALANG, KABUPATEN DEMAK (Molluscs Diversity based on Sediment Texture and Organic Matter Content in Betahwalang Estuary, Demak Regency) Shalihah, Hana Nisau Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Purnomo, Pujiono Wahyu Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Widyorini, Niniek Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Moluska; Tekstur Sedimen; Bahan Organik Sedimen; Muara Sungai Betahwalang   Muara Sungai Betahwalang merupakan ekosistem yang mendapat masukan dari kegiatan penduduk daerah pemukiman sekitar dan dari Sungai Jajar. Muatan pencemar akan mempengaruhi kondisi muara terutama substrat dasar pada sungai Betah walang. Tekstur dan kandungan bahan organik di dalam sedimen menentukan keberadaan moluska. Tekstur sedimen merupakan tempat untuk menempel dan merayap atau berjalan, sedangkan bahan organik merupakan sumber makanan bagi moluska. Tujuan dari penelitian ini adalah untuk mengetahui keanekaragaman moluska, tekstur sedimen dan kadar bahan organik, serta untuk mengetahui hubungan antara variabel. Metode yang digunakan adalah metode survey dengan pengambilan sampel menggunakan metode Purposive Sampling. Sampel diambil pada 5 stasiun dan masing-masing stasiun terdiri dari 3 titik. Hasil penelitian menyebutkan bahwa terdapat 10 genera dari kelas Gastropoda yaitu Littorina, Cerithidea, Turritella, Clathrodrillia, Fasciolaris, Conus, Filopaludina, Pila, Melanoides dan Telescopium dan 4 genera dari kelas Bivalvia yaitu Anadara, Mesodesma, Mytilus dan Donax. Karakteristik substrat di muara Sungai Betahwalang adalah liat dan liat berpasir dengan kadar bahan organik berkisar antara 6,2-17,4 %. Hubungan moluska dengan tekstur sedimen terutama liat mempunyai korelasi positif dengan persamaan y = 6.94x + 224.0 (r = 0.535). Hubungan moluska dengan bahan organik mempunyai korelasi positif dengan persamaan y = 33.44x + 271.1 (r = 0.507) dan R2 = 0.257      Betahwalang Estuary is an ecosystem that gets input from the activities of the surrounding residents area and from the Jajar River. Contaminant load from upstream will affect the condition of the substrate in Betah walang river. Texture and organic matter content in the sediments determine the presence of molluscs. Sediment texture is a place for molluscs to stick, crawl or walk, while organic matter is a source of food for them. The purpose of this research is to know the diversity of molluscs, sediment textures and organic matter content, and to know the relationship between those variables. The method used is survey method with sampling using Purposive Sampling method. Samples were taken at 5 stations and each station consisted of 3 spots. The results show that 10 genera of the Gastropod class were Littorina, Cerithidea, Turritella, Clathrodoillia, Fasciolaris, Conus, Filopaludina, Pila, Melanoides and Telescopium and 4 genera of Bivalves class were Anadara, Mesodesma, Mytilus and Donax. Betahwalang estuary are characterized by clay and sandy clay with organic material content between 6,2-17,4%. The relationship of molluscs with sediment texture, especially clay, has a positive correlation with the equation y = 6.94x + 224.0 (r = 0.535). The relationship of molluscs with organic matter has a positive correlation with the equation y = 33.44x + 271.1 (r = 0.507).   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16830 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23541 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc RESPONS MIMI (LIMULIDAE, 1819 LEACH) TERHADAP CAHAYA LAMPU LED MERAH DENGAN INTENSITAS YANG BERBEDA UNTUK MITIGASI BYCATCH JARING INSANG DASAR Rahayu, Rosi Bogor Agricultural University Technology of Fisheries Wahju, Ronny Irawan Bogor Agricultural University Technology of Fisheries Mawardi, Wazir Bogor Agricultural University Technology of Fisheries Mimi; Mitigasi Bycatch; Tingkah Laku; Light Emitting Diode (LED) Penelitian respons mimi terhadap cahaya light emitting diode merah dengan intensitas yang berbeda telah dilakukan pada skala laboratorium. Penelitian ini bertujuan untuk menentukan pola dan laju respons mimi terhadap lampu LED merah dengan intensitas yang berbeda serta menentukan tingkat intensitas LED merah yang tepat untuk mitigasi bycatch mimi. Metode penelitian yang digunakan adalah eksperimen skala laboratorium dengan tiga variabel intensitas cahaya LED merah, yaitu rendah (3,68 × 10-6 W/cm2), intensitas sedang (5,47 × 10-6 W/cm2), dan intensitas tinggi (1,05 × 10-5 W/cm2). Pengujian dilakukan untuk mengamati pola dan laju respons mimi terhadap tiga intensitas cahaya lampu LED merah. Spesies mimi yang dijadikan objek penelitian adalah Tachypleus gigas. Jumlah mimi yang digunakan sebanyak 20 ekor dengan panjang total 30-38 cm. Analisis data yang digunakan adalah metode deskriptif komparatif. Hasil penelitian menunjukkan terdapat respons mimi menjauhi cahaya terbanyak pada LED merah intensitas rendah sebanyak 60%, sedangkan intensitas sedang dan tinggi sebanyak 35% dan 34%. Adapun waktu respons mimi yang tersingkat terdapat pada intensitas cahaya LED rendah selama 32,05 detik dan waktu respons terpanjang terdapat pada intensitas tinggi selama 59,06 detik. Berdasarkan respons penghindaran tersebut, lampu LED dengan intensitas 3,68 × 10-6 W/cm2 dapat digunakan sebagai alternatif dalam mitigasi bycatch mimi pada perikanan jaring insang dasar.   Research on the response of horsehoe crab toward  red light emitting diode lamps with different intensities were carried out on laboratory scale. The purpose of this study were to analyze the pattern and response rate of horseshoe crab against red LEDs with different intensities and determine the intensity of red LED light that is suitable for mitigation bycatch of horseshoe crab. The research method used was experimental laboratory with three viriables, namely low intensity (3,68 × 10-6 W/cm2), moderate intensity (5,47 × 10-6 W/cm2), and high intensity (1,05 × 10-5 W/cm2). The experiment was carried out by observing the pattern and the response rate for the red LED lights. The type of spesies used in research is Tachypleus gigas. The number of horseshoe crabs used was 20 with a total lenght of 30-38 cm. Data analysis  used was deskriptive comparative method. The result showed that the intensity of the most avoided by horseshoe crab was a low intensity of 60%, while the moderate and high intensity  were 35% and 34% respectively. The shortest horseshoe crab response time is at low intensity for 32,05 seconds and the longest response time is at high intensity for 59,06 seconds. LED light with an intensity of 3,68 × 10-6 W/cm2 provide an avoidance response to horseshoe crab. Based on the avoidance response, LED lights with an intensity of 3,68 × 10-6 W/cm2 can be used as an alternative in mitigation bycatch of horseshoe crab for bottom gillnets fisheries. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23541 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/23541/65554 Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6847 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc The Populations of Macrobenthos Organisms in The Peat Soil in Rawapening Reservoir Ruswahyuni, Ruswahyuni Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Nata, William Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Rawapening a reservoir in Semarang district, which holds the potential fisheries resources. Water in Rawapening comes from eighteen rivers, and there is only one outflow, i.e. Tuntang river. Peat soil in Rawapening has a high organic matter content. In terms of ecology, the presence of organic material is able to enrich the aquatic environment. The waters which has high content of organic material needs more oxygen to dicompose, so that the waters contain less oxygen. This condition can be harmful to aquatic organisms, especially benthic animals that are not active or have a limited movement. A discriptive field research was conducted in July 2008. The objectives of this research was to determine the populations of macrobenthos organisms in the peat soil which has different organic matter content The results show that the structure of macrobenthos populaion found in of 4 classes, consisting of: Oligochaeta, Gastropoda, bivalves and larvae of Insects. Of these 4 classes, there are 10 genera composed of 5 genera Oligochaeta, 1 genus of Bivalves, 3 genera of Gastropods and 1 genus of Cironomid. Chi-Square statistical analysis, showed that there are differences in macrobenthos population in the peat soils with different organic matter content in the waters Rawapening. Key Words: Macrobenthos. Peat Soil, Rawapening Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6847 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/38326 2022-09-06T11:57:40Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/77806 2026-02-05T07:11:14Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Sulthoniyah, Siti Tsaniyatul Miratis Universitas PGRI Banyuwangi Susanti, Reni Eka Evi Asih, Lika Dewi Sakti, Widhi Winata Daun Avicennia sp. merupakan salah satu jenis tanaman mangrove yang tumbuh di Pantai Plengsengan Banyuwangi dan telah diketahui memiliki kandungan kimia dan bioaktif yang tinngi. Penelitian ini bertujuan untuk mengidentifikasi adanya senyawa fitokimia dan aktivitas antibakteri terhadap bakteri Staphylococcus aureus, Salmonella thypi dan Escherichia coli, serta mengevaluasi potensi daun tersebut sebagai bahan tambahan dalam pembuatan antibacterial active packaging. Metode penelitian yang digunakan yaitu eksploratif eksperimen  meliputi ekstraksi sampel daun Avicennia sp. dengan maserasi menggunakan methanol, uji fitokimia secara kualitatif dan uji aktivitas antibakteri dengan mengetahui besaran daya hambatnya. Hasil penelitian menunjukkan bahwa ekstrak methanol daun Avicennia sp. mengandung senyawa flavonoid, tanin, saponin dan triterpenod. Sedangkan hasil uji aktivitas antibakteri yaitu pada maserasi 24 jam, daya hambat terhadap bakteri S. aureus 5,3 mm, S. thypi 2,0 mm dan E. coli 4,3 mm. Maserasi 48 jam, daya hambat terhadap bakteri S. aureus 7,5 mm, S. thypi 5,2 mm dan E. coli 6,2 mm. Maserasi 72 jam, daya hambat terhadap bakteri S. aureus 10,6 mm, S. thypi 6,2 mm dan E. coli 8,0 mm. Berdasarkan hasil penelitian tersebut dapat disimpulkan bahwa ekstrak metanol daun Avicennia sp. berpotensi untuk digunakan sebagai bahan tambahan pada pembuatan antibacterial active packaging. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/77806 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/29017 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200430 2020 eng " 2549-0885 1858-4748 dc Haeruddin, Haeruddin Program Studi Doktor Manajemen Sumberdaya Pantai Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Rahman, Arif Ayuningrum, Diah Kerang darah merupakan salah satu jenis kekerangan yang bernilai ekonomis penting.  Habitat kerang darah yang mengandung pestisida organoklorin dapat menurunkan nilai ekonomis kerang, dikarenakan pestisida organoklorin dapat terakumulasi dalam jaringan lunak kerang, sehingga tidak aman untuk dikonsumsi. Penelitian ini dilakukan untuk menentukan potensi biokonsentrasi pestisida organoklorin dalam jaringan lunak kerang darah ditilik dari faktor biokonsentrasi pestisida tersebut.  Penelitian dilakukan dengan memelihara kerang darah dalam sedimen yang mengandung pestisida pada beberapa akuarium. Sedimen diambil dari Muara Sungai Wakak-Plumbon, Jawa Tengah. Hasil penelitian menunjukkan bahwa pestisida organoklorin mampu terakumulasi dalam jaringan lunak dengan faktor biokonsentrasi yang berbeda untuk masing-masing jenis pestisida organoklorin.  Faktor biokonsentrasi pestisida organoklorin tertinggi pada pestisida lindane.  Faktor biokonsentrasi pestisida terendah adalah aldrin.   Blood clams are one type of clams which have important economic value. Habitat of blood clams mostly contain organochlorine pesticides which then reduce their economic value.  The organochlorine pesticides can accumulate in the blood clams soft tissue, making it unsafe to consume. This research was conducted to determine the accumulation potential of organochlorine pesticides in the soft tissue of blood clams from the bioconcentration factor of these pesticides. The study was conducted by maintaining blood shells in sediments containing pesticides in several aquariums. Sediments were taken from the Wakak-Plumbon River Estuary, Central Java. The results showed that organochlorine pesticides were able to accumulate in soft tissues with different bioconcentration factors for each type of organochlorine pesticide. The highest biochemical concentration of organochlorine pesticides is in lindane pesticides. The lowest bioconcentration factor of pesticides is Aldrin. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/29017 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN ind Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8102 2015-06-29T01:06:48Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc ANALISIS KELAYAKAN USAHA PERIKANAN LAUT KABUPATEN KENDAL (Feasibility Study to Fisheries Bussiness in District of Kendal) Indradi, Ismail Program Studi Pemanfaatan Sumberdaya Perikanan FPIK-Universitas Diponegoro Semarang Wijayanto, Dian Program Studi Pemanfaatan Sumberdaya Perikanan FPIK-Universitas Diponegoro Semarang Yulianto, Taufik Program Studi Pemanfaatan Sumberdaya Perikanan FPIK-Universitas Diponegoro Semarang Suroto, Suroto Program Studi Pemanfaatan Sumberdaya Perikanan FPIK-Universitas Diponegoro Semarang Kabupaten Kendal memiliki jumlah nelayan sebanyak 17,764 orang. Hal ini menunjukkan sektor perikanan tangkap Kabupaten Kendal memiliki peranan yang strategis. Tujuan dari penelitian ini adalah untuk menganalisis kelayakan usaha beberapa usaha perikanan tangkap di Kabupaten Kendal. Penelitian ini menggunakan data primer, yaitu hasil survei dan wawancara. Analisis kelayakan usaha dilakukan dengan pendekatan NPV (net present value), IRR (internal rate of return) dan payback periods. Hasil penelitian menunjukkan bahwa beberapa usaha penangkapan ikan di Kabupaten Kendal adalah feasible (layak), baik dari sisi NPV, IRR, maupun payback periods. Kata Kunci: NPV, IRR, payback periods, usaha perikanan laut, Kabupaten Kendal   There are 17,764 fisherman in District of Kendal. So, that is mean if fisheries sector have the strategic role for District of Kendal. The purpose of this study were to analys the feasibility study of several fisheries business in District of Kendal. The research used primary data through survey and interview. The research used NPV, IRR and payback periods as key variables. The research proved if several fisheries business were feasible, both in NPV, IRR and payback periods. Keywords: NPV, IRR, payback periods, fisheries bussiness, District of Kendal Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8102 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/299 2025-04-26T12:41:56Z saintek:RSA

nmb a2200000Iu 4500 "101023 2010 eng " 2549-0885 1858-4748 dc EVALUASI TINGKAT EKSPLOITASI SUMBERDAYA IKAN GULAMAH (Johnius sp) BERDASARKAN DATA TPI PPS CILACAP Wijaya Saputra, Suradi Rudiyanti, Sit Mahardhini, Atifah Sumberdaya ikan Gulamah (Johnius sp) merupakan salah satu jenis ikan demersal kecil yang banyak ditangkap oleh nelayan dengan menggunakan trammel net dan gill net, payang dan pukat pantai. Produksi ikan Gulamah di perairan Cilacap cenderung mengalami peningkatan sejak tahun 2003. Eksploitasi yang tidak terkendalikan dapat mengakibatkan menipisnya stok ikan. Penelitian ini bertujuan untuk mengetahui beberapa aspek biologi, tingkat pemanfaatan ikan Gulamah ditinjau dari ukuran rata-rata ikan yang tertangkap dan produksi surplus, serta musim penangkapannya. Metode yang digunakan adalah metode survei. Pengambilan sampel menggunakan metode simple random sampling dengan mencatat 10% dari populasi ikan Gulamah yang didaratkan di TPI PPSC Kabupaten Cilacap. Data primer diperoleh dari pengamatan jenis kelamin, mengukur panjang dan berat tubuh ikan Gulamah. Data sekunder yang dikumpulkan berupa data produksi ikan Gulamah, jumlah upaya penangkapan (trip) trammel net dan gill net, serta produksi bulanan ikan Gulamah selama kurun waktu 8 tahun terakhir (2000-2007). Hasil penelitian menunjukkan bahwa sifat pertumbuhan ikan Gulamah jantan adalah allometrik negatif , sedangkan ikan betina isometrik. Ukuran rata-rata tertangkap ikan Gulamah jantan sebesar 150 mm, ikan Gulamah betina sebesar 154 mm, lebih besar dari setengah nilai L∞-nya. Nisbah kelamin antara jantan dengan betina sebesar 1 : 1,86, masih terjamin terjadinya reproduksi alamiahnya. Tingkat eksploitasi ikan Gulamah masih rendah (10% dari MSY). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/299 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/46542 2023-02-10T03:38:44Z saintek:RSA

nmb a2200000Iu 4500 "221030 2022 eng " 2549-0885 1858-4748 dc SOME ASPECTS OF THE REPRODUCTIVE BIOLOGY OF KRAI COB (Auxis thazard) IN SIBOLGA, NORTH SUMATERA Arnenda, Gussasta Levi Research Institute of Tuna Fisheries Rochman, Fathur Research Institute of Tuna Fisheries Kurniawan, Roy Research Institute of Tuna Fisheries Cob Krai, , North Sumatra, Reproductive Biology Tuna, tuna and skipjack (TTC) species in North Sumatra have contributed to world tuna production. One of the sources of neritic tuna caught in Indian Ocean waters (WPP 572 and 573) is tuna krai (Auxis thazard). Tongkol krai (Auxis thazard) has a high economic value in Indonesia, especially in the waters of Sibolga and its surroundings. Ensuring the sustainability of cob krai resources is an absolute must. The purpose of this study was to determine the reproductive biology of Tongkol Krai (Auxis thazard) in North Sumatra. Research on the Sibolga Archipelago Fisheries Port (PPN) in February, July, and October 2019. This study uses quantitative research using survey methods, with the sampling technique used in this study is purposive stratified sampling. The results showed that the correlation between length and weight of 118 Krai Cob W= 0.0078L 3.234, with a positive allometric growth pattern. Spread Length 25-41cmFL. Sex ratio 1:0.83 and not significantly different. The first time the gonads matured in females at 31.74cmFL, and 28.43cmFL in males. Female krai cob had TKG I 21.05%, TKG II 5.26%, TKG III 2.63%, TKG IV 63.17%, and TKG V 7.89%. Cob krai Male TKG I 8.69%, TKG II 4.34%, TKG III 8.69%, TKG IV 73.91%, and TKG 4.34%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-11-24 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/46542 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 3 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/32887 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc ALTERNATIF STRATEGI PENGEMBANGAN PELABUHAN PERIKANAN NUSANTARA BRONDONG LAMONGAN JAWA TIMUR Suherman, Agus Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro PPN Brondong, Strategi Pengembangan, Lamongan Jawa Timur A strategy is increasingly needed by Nusantara Fishing Port (NFP) Brondong due to the tendency of the increasing intensity of competition in the national Fishing Port (FP). This strategy is derived from business strategy for inter-sector regulation on NPF Brondong have the same direction of motion for the achievement of targets NFP Brondong. The purpose of this study is to formulate development strategies NFP Brondong The method used a case study descriptive survey. The results of this study show that NFP Brondong development strategy include 1) optimizing the utilization of the potential of SDI, (2) to provide facilities that meet international standards, (3) maintenance and improvement of operational facilities of FP, (4) institutional capacity building, and (5) supervision and law enforcement Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/32887 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8119 2015-06-29T15:47:52Z saintek:RSA

nmb a2200000Iu 4500 "140225 2014 eng " 2549-0885 1858-4748 dc PENAMBAHAN ENZIM YANG BERBEDA PADA PENGOLAHAN KECAP IKAN DARI ISI RONGGA PERUT IKAN MANYUNG (The Addition of Different Enzymes to the Processing of Fish Sauce Made from the Viscera of Marine Catfish (Arius thalassinus) to the Product Quality) Kristianawati, Ferika Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Rianingsih, Laras Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Kecap ikan merupakan produk bahan makanan hasil olahan melalui proses fermentasi yang dibuat dari ikan maupun limbah ikan dan garam. Proses pengolahan kecap ikan secara tradisional memerlukan waktu yang lama dan kadar garam yang tinggi. Fermentasi kecap ikan dapat dipercepat dengan penambahan enzim proteolitik dan pengurangan kadar garam. Penelitian ini bertujuan untuk mengetahui ada tidaknya pengaruh penambahan enzim yang berbeda pada pengolahan kecap dari isi rongga perut ikan Manyung dengan penggunaan konsentrasi garam 20% selama fermentasi 45 hari terhadap mutu sensori dan kimiawi produk. Hasil penelitian menunjukkan bahwa penggunaan jenis enzim yang berbeda (tripsin dan pepsin) dalam pengolahan kecap ikan dari isi rongga perut ikan Manyung menyebabkan pengaruh yang nyata terhadap aktivitas enzim, warna, prosentase rendemen serta nilai hedonik produknya. Penggunaan enzim tripsin dan pepsin meningkatkan nilai aktivitas enzim, prosentase rendemen dan nilai hedonik produknya secara nyata, tetapi menurunkan nilai pH. Penambahan enzim tripsin 0.3% (b/b) pada pengolahan kecap ikan dari isi rongga perut ikan Manyung dengan lama fermentasi 45 hari menghasilkan produk kecap ikan dengan kriteria pH 5.48 (sudah memenuhi kriteria mutu kecap ikan komersial dari Thailand), aktivitas enzim (0.84 µmol ml-1), prosentase rendemen (48.54), warna produk kuning kecoklatan dan nilai hedonik 6.97 (disukai panelis). Kata kunci: Kecap ikan; isi rongga perut ikan manyung; tipsin; pepsin; mutu   Fish sauce is a product made from fish or fish waste and salt processed by a fermentation method traditionally, processing of fish sauce requires a long time and high level of salt. Fermentation process of fish sauce can be accelerated by the addition of proteolityc enzymes and reduction in salt level. This research aims to determine the effect of using different types of enzymes in the processing of fish sauce made from viscera of Marine Catfish and salt concentration of 20% during 45 days fermentation to the sensory and chemical quality of the product. The results showed that using of different types of enzymes trypsin and pepsin with the concentration of 0.3% in the processing of fish sauce caused the yield, hedonic and enzyme activity values of the product increased significantly, but pH value was lower. The addition of trypsin enzyme of 0.3% (w/w) and 20% of salt in the processing of fish sauce made from viscera of Marine Catfish fermented for 45 days, produced the best product quality which had characteristic pH value of 5.48 that was meet the pH values offish sauce of SNI and TISI, enzyme activity value of 0.84 µmol ml-1, hedonic value of 6.97 (prefered by panelist), brownish-yellow in colour and yield of 48.54%.   Key words: Fish sauce; viscera of marine catfish; trypsin; pepsin; quality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 13:33:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8119 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 2 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2062 2020-12-07T08:06:47Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Zooxanthellae Life Model and Massalization Growth in the Artificial Environment Waters Purnomo, Pujiono Wahyu Program Studi Manajemen Sumberdaya Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Zooxanthellae are part of the phototropic dinoflagellates. This organism  always live as symbiotically with several marine invertebrates. Relationship between zooxanthellae and coral are mutualistic with the transfer nutritif and phisiologis character. With this character, no coral can live without zooxanthellae. Zooxanthellae have vital control on the coral and sessile life. Model of relationship between zooxanthellae and coral are adopted in the artificial environment for take the massalization culture zooxanthellae in the artificial environment. This study was purposed to : (a) Evaluating of environment limiting factors to support optimum growth of zooxanthellae in the artificial environment; (b) Evaluating of purification culture of zooxanthellae and (c) Formulating nutritif to maintenance of maximum gorwth of zooxanthellae. The experiment took place in Natural food and Genetic laboratory of Main Centre of Brackishwater Aquaculture Development Jepara from August 2004 to September 2005. The result showed that: (a) The optimum irradiance for growth of zooxanthellae is green radiance (with comparison 490 - 550 nm); (b) The optimum temperature for growth of zooxanthellae are 20 – 25oC and (c) Adding of 200 µM NaNO3 with repeat again for 16 days,   Key Words: Zooxanthellae, Life Model,Massalization Growth Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2062 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/57292 2025-04-15T07:25:05Z saintek:RSA

nmb a2200000Iu 4500 "231029 2023 eng " 2549-0885 1858-4748 dc STRATEGY OF GILL NET FISHING OPERATIONS FOR COASTAL FISHERIES MANAGEMENT IN BATANG REGENCY Rochmat, Rochmat Master Student of Fisheries Management Study Program, Terbuka University Mudzakir, Abdul Kohar Capture Fisheries Department, Fisheries and Marine Sciences, Diponegoro University https://orcid.org/0000-0003-3995-7232 Santoso, Agus Statistics Study Program, Terbuka University Sudarmo, Agnes Puspitasari Fisheries Management Study Program, Terbuka University gill net fishing gear, business feasibility, CCRF, management strategy Batang Regency is located on the North Coast of Central Java, with geographical coordinates between 6°51'46" - 7°11'47" South Latitude and 109°40'19" - 110°03'06" East Longitude. This study aims to determine fisheries statistics, analyze business feasibility, and identify environmentally friendly fishing gear and strategies for managing fishing efforts. The method used in this research is purposive sampling. In addition, the method of interviewing social respondents was used. Methods of data analysis using business feasibility analysis, descriptive analysis with a quantitative approach, and SWOT. The results of this study included: an increase in the number of fishing gear indicating the intensity of fishing trips and the number of catches; gill net capture fisheries business with financial analysis obtained a PP value of 0.67 and an NPV value of Rp. 178,467,972, - the Net B/C value obtained was 5 and the IRR value obtained was 117%; environmentally friendly fishing gear based on the Code of Conduct for Responsible Fisheries (CCRF) gets a score of 30 and shows that gill net fishing gear is classified as environmentally friendly fishing gear; and there are gill net fishing gear management strategies such as increasing fishing activities, stabilizing the price of fish caught, developing port facilities, fostering the use of business management fishing technology and diversifying catches in the utilization of natural resource potential. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-11-01 05:59:06 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/57292 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 3 (2023): SAINTEK PERIKANAN eng Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/27244 2022-04-19T17:30:04Z saintek:RSA

nmb a2200000Iu 4500 "201222 2020 eng " 2549-0885 1858-4748 dc Dollu, Efrin Antonia Pulau Pura merupakan salah satu pulau di Kabupaten Alor, Nusa Tenggara Timur, dimana memiliki perairan terbuka (open access). Kondisi perairan tersebut membuat para nelayan memanfaatkannya untuk pengoperasian alat tangkap Bubu namun kurang memperhatikan kaidah-kaidah pengelolaan perikanan yang lestari dan berkelanjutan. Kondisi tersebut dapat mempengaruhi ketersediaan ikan pada suatu perairan. Tujuan dalam penelitian ini adalah untuk mendeskripsikan pola spasial hasil tangkapan Bubu,  dengan sampel penelitian pada beberapa perairan yaitu Perairan Desa Pura Utara, Perairan Desa Pura Timur dan Perairan Kelurahan Pulau Pura. Analisis data yang digunakan untuk mengetahui pola keruangan hasil tangkapan ikan dalam Bubu digunakan analisis secara deskriptif dengan menggunakan peta dan tabel kemudian diperkuat dengan analisis statistik untuk melihat pengaruh pola spasial terhadap hasil tangkapan bubu. Analisis yang digunakan yaitu analisis regresi linear sederhana dan analisis varians satu arah . Pola spasial dianalisis berdasarkan jarak bubu dengan garis pantai dan juga berdasarkan kedalaman dari bubu. Hasil tangkapan pada kedalaman 0 – 5 m, dimana hasil tangkapan paling banyak terdapat Desa Pura Utara dengan Total tangkapan 1300 ekor yang terdiri dari 82 spesies ikan, sedangkan tangkapan paling sedikit ada pada Kelurahan Pulau Pura dengan total tangkapan 887 ekor yang terdiri dari 61 spesies ikan. Hasil tangkapan pada kedalaman 6 – 10 m dimana hasil tangkapan paling banyak adalah Desa Pura Utara dengan total tangkapan 796 ekor yang terdiri dari 22 spesies ikan, sedangkan tangkapan paling sedikit ada pada Kelurahan Pulau Pura dengan total tangkapan 694 ekor yang terdiri dari 22 spesies ikan.   Pura Island is one of the islands in Alor Regency, East Nusa Tenggara, which has the open water (open access). The condition of these waters make fishermen using for the operation of trap fishing gear, but they do not pay attention to the principles of sustainable and sustainable fisheries management. these conditions can affect the availability of fish in the waters. The aims on this study was to describe the spatial pattern of Bubu's catch, with the research samples in several waters, namely North Pura Village Waters, East Pura Village Waters and Pulau Pura Kelurahan Waters. The Analysis of the data used to determine the spatial pattern of the fish catch in the bubu used the descriptive analysis using maps and tables and then strengthened by statistical analysis to see the effect of spatial patterns on the catch. The analysis used is the simple linear regression analysis and one-way analysis of variance. The spatial patterns were analyzed based on the distance of the bubu to the coastline and also the depth of the traps. The catch is at a depth of 0 - 5 m, where the most catch is in Pura Utara Village with a total catch of 1300 consisting of 82 fish species, while the least catch is in Pulau Pura Village with a total catch of 887 consisting of 61 fish species. . The catch is at a depth of 6 - 10 m where the most catch is Pura Utara Village with a total catch of 796 fish consisting of 22 fish species, while the least catch is in Pulau Pura Village with a total catch of 694 consisting of 22 fish species. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/27244 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9324 2015-10-27T09:48:56Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc KONDISI KESEHATAN IKAN LELE DUMBO (Clarias gariepinus, Burch) YANG DIPELIHARA DENGAN TEKNOLOGI BIOFLOC (Health conditions of catfish (Clarias gariepinus, burch) were rearing with biofloc technology) Hastuti, Sri Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Universitans Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Subandiyono, Subandiyono Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Universitans Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang ABSTRAK   Penelitian ini difokuskan untuk memperoleh gambaran performa kimiawi darah, enzim anonitransferase (GPT dan GOT) serum dan kondisi kesehatan ikan lele yang dipelihara dengan kepadatan sangat tinggi dengan menerapkan teknolobi biofloc. Tujuan jangka panjang dari penelitian ini adalah sebagai dasar untuk antisipasi penerapan teknologi budidaya ikan lele yang ramah lingkungan dan berkelanjutan.  Penelitian dilakukan dengan mengambil ikan lele contoh dari lapangan, yaitu di daerah Comal, Pemalang yang dibudidayakan dengan teknologi biofloc.  Paramater kesehatan ikan diukur melalui hematologi serta performa  kimiawi darah.  Variabel yang diukur meliputi kadar bilirubin total, bilirubin direk dan bilirubin indirek, GPT dan GOT dalam serum darah, serta Konsentrasi berbagai sel dalam darah Ikan.  Kondisi kualitas air diukur secara rutin setiap dua minggu. Data yang terdiri dari bilirubin, GPT, GOT, konsentrasi sel dalam darah ikan lele serta kualitas air media pemeliharaan dianalisis secara diskriptif.  Hasil penelitian menunjukkan konsentrasi enzim aminotranserase dalam serum darah mengalami kenaikan selama masaa pemeliharaan yaitu  200±5 hingga 232,3±2,5/Ul (SGOT) dan 105,3±1,5 hingga 107,7±2,5/Ul (SGPT).  Konsentrasi leukosit, eritrosit, hemoglobin, hematokrit, dan trombosit pada minggu ke 6 masing-masing sebesar 206,3±2,9 ribu sel/µl; 1,7±0,1 juta sel/µl; 6,6±0,3 g/dl; 26,2±0,2% dan 1,1±0,1 ribu sel/µl. Pada akhir pemeliharaan nilai leukosit, eritrosit, hemoglobin, hematokrit, dan trombosit mengalami perubahan menjadi 175±5,0 ribu sel/µl, 1,6±0,2 juta sel/µl, 6,4±0,4 g/dl, 21,7±1,5% dan  9,3±0,6 ribu sel/µl. Nilai bilirubin total, bilirubin direk dan bilirubin indirek masing-masing pada kisaran 0,4±0,1  hingga 175±5,0 mg/dl,  0,2±0,1 hingga 0,5±0,1 mg/dl dan 0,2±0,1 hingga 0,4±0,2 mg/dl.  Gukosa darah sebesar  154,3±5,1 hingga 188,0±2,6 mg/dl.  Dari parameter hematologis dan kimiawi darah tersebut ikan lele dumbo yang dipelihara dengan kepadatan 1.000 ekor/m2 dan teknologi biofloc memiliki kondisi kesehatan yang baik yang dapat dilihat dari angka kelangsungan hidup mencapai 95,70±3,27%. Sel hati ikan mengalami kerusakan. Kata kunci : serum aminotransaminase, bilirubin, sel darah, lele, teknologi biofloc   This study was focused to obtain of the performance of blood chemistry , enzyme anonitransferase ( GPT and GOT ) in serum and catfish health conditions were rearing with very high densities by applying biofloc teknology . The goal in the long term of this research was the basic information for the application of biofloc technologies in catfish farming that are environmentally friendly and sustainable. The study was conducted by taking a sample of catfish from the field , in Comal area, Pemalang.  Catfish (Clarias gariepinus, burch) were rearing with biofloc technology . Fish health parameters measured by the performance of hematology and blood chemistry. The variables measured include total bilirubin , direct bilirubin and indirect bilirubin , GPT and GOT in the blood serum , as well as a variety of cells in the blood of fish. Water quality conditions measured regularly every two weeks . The data consists of bilirubin , GPT , GOT , the concentration of blood cells in the catfish and water quality were analyzed descriptively . The results showed aminotranserase enzyme concentration in blood serum increased from 200±5 to 232,3±2,5/Ul  ( SGOT ) and 105,3±1,5 to 107,7±2,5/Ul (SGPT). The concentration of leukocytes , erythrocytes , hemoglobin , hematocrit , and platelet count at week 6 respectively 206.3±2.9 (x103) cells/µl; 1,7±0,1 (x106) cells/µl; 6,6±0,3 g/dl; 26,2±0,2% and 1,1±0,1 (x103) cell/µl. At the end of the rearing, number of leukocytes, erythrocytes, hemoglobin, hematocrit, and platelet count changed to 175±5,0 (x103)cells/µl, 1,6±0,2 (x106) cells/µl, 6,4±0,4 g/dl, 21,7±1,5% and 9,3±0,6 (x103) cells/µl.  Value of total bilirubin , direct bilirubin and indirect bilirubin, respectively in the range of 0,4±0,1 to 175±5,0 mg/dl, 0,2±0,1 to 0,5±0,1 mg/dl and 0,2±0,1 to 0,4±0,2 mg/dl. Blood gluucose level were 154,3±5,1 to 188,0±2,6 mg/dl. The haematological and blood chemistry parameters of the African catfish were rearing at density of 1.000 individuals/m2 and appliede biofloc technology have good health condition that can be seen from the survival rate reached 95,70±3,27%. Fish liver cell was damage. Keywords : serum aminotransaminase, bilirubin, blood cell, catfish, biofloc teknology Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9324 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2791 2012-03-28T15:02:05Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc The Role of Fisheries Sector Before and After the Implementation of Regional Outonomy in Central Java Dault, Adhyaksa Program Doktor Manajemen Sumberdaya Pantai Universitas Diponegoro Semarang Jl. Imam Bardjo SH No 5 Semarang Mudzakir, Abdul Kohar Program Studi Pemanfaatan Sumberdaya Perikanan FPIK UNDIP Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Hayam Wuruk No. 4A, Semarang Suherman, Agus Program Studi Pemanfaatan Sumberdaya Perikanan FPIK UNDIP Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Hayam Wuruk No. 4A, Semarang The objectives of this research is to find out the character of fisheries sector, before and after the act of regional in Central Java otonom. A discriptive method was apply by using secondary data from Central Java Input Output Table Data, Domestic Transaction Based on Producer Price 19 Sector year 1993, 2000, 2004 and 2007. The results showed that the Regional Autonom Act since 1 January 2000 in Central Java influenced the monetary, and others fisheries sectors, such as on the supply and demand, output, added value and trading structure. Those impacts were shown by the decreasing of trade structure after the regional outonom act Keywords : Regional otonomy, input output table, fisheries, Central Java Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2791 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49490 2025-04-15T07:55:11Z saintek:RSA

nmb a2200000Iu 4500 "240430 2024 eng " 2549-0885 1858-4748 dc IDENTIFIKASI, KARAKTERISASI DAN POTENSI PROBIOTIK BAKTERI DARI SALURAN PENCERNAAN IKAN BANDENG (Chanos chanos Forsskal.) Firmani, Ummul Program Studi Akuakultur, Fakultas Pertanian, Universitas Muhammadiyah Gresik, Jl. Sumatra No.101 GKB, Gresik, Jawa Timur, Indonesia Rahim, Andi Rahmad Program Studi Akuakultur, Fakultas Pertanian, Universitas Muhammadiyah Gresik Jl. Sumatra No.101, GKB, Randuagung, Gresik, Jawa Timur Safitri, Nur Maulida Program Studi Akuakultur, Fakultas Pertanian, Universitas Muhammadiyah Gresik Jl. Sumatra No.101, GKB, Randuagung, Gresik, Jawa Timur Ekawati, Arning Wilujeng Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Jl. Veteran, Malang 65145, Jawa Timur Nurdiani, Rahmi Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Jl. Veteran, Malang 65145, Jawa Timur Nursyam, Happy Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Jl. Veteran, Malang 65145, Jawa Timur Amilolitik; Antagonistik; Bandeng; Probiotik; Pseudomonas guezennei Saluran pencernaan ikan bandeng dihuni oleh beraneka ragam komunitas bakteri dengan karakteristik berbeda-beda. Bakteri tersebut memiliki kemampuan adaptasi dengan kondisi saluran pencernaan ikan bandeng serta menghasilkan enzim pencernaan yang bisa membantu proses pencernaan makanan dalam tubuh ikan. Identifikasi dan karakterisasi bakteri dari saluran pencernaan ikan bandeng penting untuk dilakukan dengan tujuan diantaranya untuk mendapatkan bakteri dengan kemampuan unggul dalam mengurai makanan ikan. Metode penelitian adalah eksperimental, sedangkan tahapan penelitian yaitu (1) isolasi dan pemurnian bakteri, (2) identifikasi secara molekuler dan karakterisasi koloni, sel serta biokimia, (3) uji potensi probiotik bakteri. Hasil penelitian menunjukkan ditemukan beberapa isolat bakteri, satu diantaranya telah diidentifikasi secara molekuler dengan 16s rRNA yaitu Pseudomonas guezennei. Karakteristik isolat B2.6 antara lain koloni berbentuk oval dengan pinggiran tidak rata/bergerigi dan diameter sekitar 2,06 cm, warna koloni krem dengan permukaan cembung dan konsistensi kering, bentuk sel batang, gram negatif, memiliki spora dan non-motil. Hasil uji biokimia isolat B2.6 bersifat positif pada produksi indol, katalase, xylosa, ONPG, gelatin, rhamnosa, arabinosa, hidrolisis pati dan kasein. Isolat B2.6 bersifat negatif pada uji oksidase, penggunaan karbon dari sitrat, manitol, urease, sitrat, TDA, malonat, inositol, sorbitol, sukrosa, laktosa, adonitol rafinosa, salisin, arginin, dan koagulase. Potensi probiotik P. guezennei antara lain bersifat amilolitik, mampu bekerja sinergis, bersifat non hemolitik, sensitif terhadap antibiotik jenis Ampicillin, Tetracycline dan Erythromycin, bersifat antagonistik terhadap patogen Aeromonas hydrophila dan Vibrio parahaemolyticus, serta mampu bertahan hidup pada pH asam 2, 3, dan 4. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49490 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33627 2021-11-30T11:46:09Z saintek:RSA

nmb a2200000Iu 4500 "210828 2021 eng " 2549-0885 1858-4748 dc AKTIVITAS ANTIOKSIDAN BERBAGAI JENIS MAKROALGA DI PANTAI SEPANJANG, KABUPATEN GUNUNGKIDUL, YOGYAKARTA (Antioxidant Activities in Various Types of Macroalgae at Sepanjang Beach, Gunungkidul District, Yogyakarta) Setyorini, Heny Budi Institut Teknologi Yogyakarta https://orcid.org/0000-0001-8888-416X Puspitasari, Amallia Institut Teknologi Yogyakarta antioxidant; macroalgae; Sepanjang Beach; Gunungkidul Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan berbagai jenis makroalga di Pantai Sepanjang, Kabupaten Gunungkidul, Yogyakarta. Penelitian ini dilaksanakan di Pantai Sepanjang, Kabupaten Gunungkidul, Yogyakarta pada bulan Agustus 2020. Jenis makroalga yang ditemukan pada saat penelitian antara lain Ulva lactuca, Palmaria palmata, Sargassum crassifolium, Gelidium spinosum, Gelidiella acerosa, dan Gracilaria verrucosa. Metode yang digunakan dalam penelitian ini adalah deskriptif eksploratif. Pengambilan sampel makroalga dilakukan secara purposive sampling meliputi bagian timur, tengah dan barat Pantai Sepanjang. Analisis aktivitas antioksidan menggunakan metode DPPH (1,1-diphenyl-2-picrylhydrazyl). Hasil analisis menunjukan bahwa potensi aktivitas antioksidan tertinggi terdapat pada Gelidiella acerosa yang berada di bagian tengah Pantai Sepanjang dengan nilai IC50 sebesar 22,407 g/ml.   This research aimed to analyze antioxidant activities from various types of macroalgae. Sample collection was taken at Sepanjang Beach, Gunungkidul District, Yogyakarta in August 2020. Various types of macroalgae were found are: Ulva lactuca, Palmaria palmata, Sargassum crassifolium, Gelidium spinosum, Gelidiella acerosa, and Gracilaria verrucosa. A method of descriptive exploratory was used in this research. Macroalgae samples were collected by purposive sampling from the eastern, central and western area of Sepanjang Beach. Antioxidant activities were carried out using DPPH method. The results showed that fresh Gelidiella acerosa which is located in the middle of Sepanjang Beach, has the highest antioxidant activities with IC50 value 22.407 g ml-1. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33627 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/69555 2025-04-15T08:15:44Z saintek:RSA

nmb a2200000Iu 4500 "241026 2024 eng " 2549-0885 1858-4748 dc VERTICAL AND HORIZONTAL POPULATION DENSITY DISTRIBUTION OF BANGGAI CARDINALFISH (Pterapogon kauderni, Koumans, 1933) IN GILIMANUK BAY, BALI Indriyawan, Muji Wasis Faculty of Fisheries and Marine Science, Diponegoro University Widowati, Ita Faculty of Fisheries and Marine Science, Diponegoro University Hartati, Retno Faculty of Fisheries and Marine Science, Diponegoro University Wibowo, Muhammad Reyhan Faculty of Fisheries and Marine Science, Diponegoro University Ramadhani, Muhammad Rizqi Faculty of Fisheries and Marine Science, Diponegoro University Rahman, Arif Faculty of Fisheries and Marine Science, Diponegoro University Nugroho, Suciadi Catur Research Institute fo Tuna Fisheries Wahyudi, Yudisthio Coastal and Sea Resources Management Regional Office Denpasar Ministry of Marine Affairs and Fisheries Petta, Constantein Coastal and Sea Resources Management Regional Office Denpasar Ministry of Marine Affairs and Fisheries Banggai Cardinalfish; Endemic; Gilimanuk Bay; Introduction The Banggai cardinalfish (Pterapogon kauderni, Koumans, 1933) is an endemic coral reef fish species native to the waters of the Banggai Islands Regency. In 2007, the species was classified as endangered by the International Union for Conservation of Nature (IUCN), followed by its designation as a protected species with limited conservation status by Indonesia’s Ministry of Marine Affairs and Fisheries in 2018. Research on the Banggai cardinalfish has been conducted in its native habitat in the Banggai Islands as well as in introduced locations. One of these introduction sites is Gilimanuk Bay, Bali, which serves as a temporary holding area for ornamental corals before export and as a release site for Banggai cardinalfish that do not meet export standards, typically due to physical deformities. This study aims to analyze the horizontal and vertical distribution of the Banggai cardinalfish in Gilimanuk Bay, Bali, with the expectation that the findings may provide insights for government policy formulation in terms of conservation efforts. The research employed a descriptive exploratory method to provide a comprehensive description of the subject and to establish a data foundation for further research or decision-making. The results showed a total population of 2,253 fish. The highest horizontal population density was observed in the southwestern part of Gilimanuk Bay, with 2.87 individuals/m² across a 500 m² observation area distributed over 5 stations. Meanwhile, the highest vertical population density was found at a depth of 6–7 meters, with a density of 3.88 individuals/m² over a 100 m² observation area at one station. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-11 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/69555 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 3 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/10563 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150828 2015 eng " 2549-0885 1858-4748 dc KEMUNDURAN MUTU DAN UMUR SIMPAN IKAN TERI NASI SETENGAH KERING (Stolephorus spp) SELAMA PENYIMPANAN DINGIN Deterioratiom Rate and Shelf life of Semi-dried Anchovy (Stolephorus spp) during Chilled Storage Fahmi, A Suhaeli Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK   Ikan teri nasi, selain banyak diolah menjadi produk kering, juga dapat ditemukan dalam bentuk setengah kering. Produk setengah kering dari ikan teri nasi ini juga sudah distandarisasi oleh BSN dengan SNI 1.3461.1:2013. Penelitian ini bertujuan untuk mengetahui proses kemunduran mutu organoleptik dan oksidasi lemak yang terjadi pada ikan teri nasi setengah kering selama penyimpanan dingin. Pada penelitian ini ikan teri nasi dikeringkan dengan sinar matahari selama 1,5 dan 2 jam. Penyimpanan dingin dilakukan pada suhu 6,40⁰C dan pengujian mutu produk dilaksanakan pada hari ke-0, 7, 14, 21 dan 28 penyimpanan dingin. Data hasil uji mutu yang berupa nilai Aw, PV, nilai proksimat dan nilai organoleptik dianalisis secara deskriptif untuk menarik kesimpulan. Hasil penelitian menunjukkan bahwa  kadar air dan nilai Aw produk setelah proses pengeringan selama 1,5 jam dan 2 jam tercatat masing-masing sebesar 63,7% dan  59,6% serta 0,92 dan 0,90. Sedangkan nilai PV masing-masing sebesar 3,84 mEq/kg lipid dan 6,04 mEq/kg lipid. Selama penyimpanan dingin nilai Aw semua produk menunjukkan nilai yang meningkat sampai akhir masa penyimpanan, sedangkan nilai PV menunjukkan pola yang fluktuatif. Ikan teri nasi yang dikeringkan selama 2 jam ditolak panelis pada hari penyimpanan dingin ke-28 sementara ikan teri nasi yang dikeringkan selama 1,5 jam sudah ditolak lebih dahulu oleh panelis yaitu pada hari ke-14 karena adanya kapang.   Kata kunci : ikan teri nasi setengah kering, Aw, kadar air, kemunduran mutu, oksidasi lemak   ABSTRACT   Dried anchovy can be found as semi-dried product with relative mild textural properties. Semi-dried anchovy have been standardized with SNI 1.3461.1:2013. This research is aimed to analyze the organoleptic value and lipid oxidation rate in semi-dried anchovy during chilled storage. The result showed that after sun drying process in 1,5 and 2 hours, moisture content of the products were 63,7% and  59,6% respectively. Aw of the products were 0,92 and 0,90 respectively. PV recorded 3,84 mEq/kg lipid dan 6,04 mEq/kg lipid respectively. During chilled storage in refrigerator (6,40⁰C), Aw were increased otherwise the PV showed fluctuative pattern. 2 hours dried anchovy was rejected on 28 days storage while 1,5 hours dried anchovy was rejected in 14 days storage due to mold  existance. Keywords : semi-dried anchovy, Aw, moisture content, quality deterioration, lipid oxidation  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/10563 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49699 2025-04-15T07:39:12Z saintek:RSA

nmb a2200000Iu 4500 "230831 2023 eng " 2549-0885 1858-4748 dc Adibrata, Sudirman Jurusan Manajemen Sumberdaya Perairan FPPB Universitas Bangka Belitung Kampus Terpadu UBB, Gd. Babel IV, Ds. Balunijuk. Kec. Merawang Kab. Bangka, Prov. Kep. Bangka Belitung 33172 Lingga, Rahmad Roanisca, Occa Pemilihan jenis ikan lokal sebagai sumber probiotik sebaiknya jenis yang sudah beradaptasi terhadap lingkungan alami. Ikan lokal merupakan ikan yang paling tahan terhadap perubahan kondisi cuaca dan keberadaannya masih dapat dijumpai di wilayah tersebut. Penelitian dilakukan bulan Maret hingga September 2022. Lokasi pengambilan sampel di 5 kecamatan di Pulau Bangka yaitu Kecamatan Sungailiat, Merawang, Mendo Barat, Toboali, dan Gabek. Pengujian di Laboratorium Mikrobiologi Universitas Bangka Belitung (UBB) dan CV. Dua Agri Mandiri (CV. DAM) Desa Petaling  Kecamatan Mendo Barat, Kabupaten Bangka. Metode analisis sampel menggunakan rumus kelimpahan relatif, indeks dominansi, kualitas air, dan metode Total Plate Count (TPC) untuk menghitung jumlah mikroba. Hasil menunjukan bahwa terdapat 5 besar sampel ikan yang memiliki kelimpahan relatif tinggi secara berurut yaitu ikan putihan / tawes (Barbonymous gonionotus) 28,05%, ikan lele kelik / lembat (Clarias nieuhofii) 20,73%, ikan nila (Oreochromis niloticus) 9,76%, ikan sepat rawa (Trichogaster trichopterus) 9,76%, dan ikan tepalak (Betta simorum) 7,32%. Nilai indeks dominansi (C) sebesar 0,16 termasuk dominansi rendah artinya tidak ada spesies yang mendominasi secara signifikan dari sampel tersebut. Berdasarkan pertimbangan kelimpahan relatif, indeks dominansi, dan persebaran spesies maka dipilih jenis ikan lele kelik sebagai kandidat isolate BAL probiotik. Kelimpahan ikan air tawar di kolong, rawa, atau sungai ditentukan oleh karakteristik habitat perairannya, begitu juga ikan lele kelik yang hidup di perairan rawa alami dengan entitas kualitas air yang menjadi faktor pembatas. Hal ini diduga bahwa ikan tersebut memiliki toleransi yang luas, kekebalan tubuh yang kuat, serta didukung oleh bakteri baik yang ada dalam tubuhnya. Jumlah mikroba pada sampel lele kelik / lembat (Clarias nieuhofii) yaitu 1,4 x 10⁹ dimana nilai ini lebih tinggi dari jumlah mikroba pada ikan nila, udang vaname, ikan mackerel. The study was conducted from March to September 2022. The locations for sampling were in 5 districts on Bangka Island, namely Sungailiat, Merawang, Mendo Barat, Toboali, and Gabek Districts. The tests were conducted at the Microbiology Laboratory at Universitas Bangka Belitung and CV. DAM in Petaling Village, Mendo Barat District, Bangka Regency. The method used the formula for relative abundance, dominance index, water quality, and the Total Plate Count (TPC) method to calculate the number of microbes. The results showed that there were 5 large samples that had relatively high abundances sequentially, namely tawes (Barbonymous gonionotus) 28.05%, catfish kelik / lembat (Clarias nieuhofii) 20.73%, tilapia (Oreochromis niloticus) 9.76%, swamp fish (Trichogaster trichopterus) 9.76%, and tepalak fish (Betta simorum) 7.32%. The dominance index value is 0.16, including low dominance, meaning that no species dominates significantly from the sample. Based on the relative abundance, dominance index, and species distribution chosen the type of catfish kelik is a candidate for probiotic LAB isolates. The abundance of fish in kolong, swamps, or rivers is determined by the characteristics of their aquatic habitat, like catfish that live in the natural swamp with water quality entities being the limiting factor. It is supposed that these fish had a wide tolerance, and a strong immune system, and were supported by beneficial bacteria in the body of the fish. The number of microbes in the sample of catfish kelik (Clarias nieuhofii) was 1.4 x 10⁹ CFU/ml which was higher than the number of microbes in tilapia, vaname shrimp, mackerel.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-08-31 14:43:36 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49699 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 2 (2023): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/49699/157512 Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/40897 2021-12-03T05:43:36Z saintek:RSA

nmb a2200000Iu 4500 "211022 2021 eng " 2549-0885 1858-4748 dc ANALYSIS OF OPERATIONAL CHARACTERISTICS OF PURSE SEINE VESSELS BASED IN PPS NIZAM ZACHMAN USING VESSEL MONITORING SYSTEM DATA (Case Study at WPP 572) Fakhrunnisa, Khansa Harisa Capture Fisheries Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Triarso, Imam Capture Fisheries Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Setyawan, Hendrik Anggi Capture Fisheries Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro https://orcid.org/0000-0001-7708-5557 VMS; logbook; purse seine A purse seine is one of the effective fishing gear, especially for catching pelagic fish. The fishing vessel based at Nizam Zachman Fishing Port Type A (PPSNZJ) and has an arrest permit in WPP 572 is dominated by purse seine. The surveillance function by the Ministry of Marine Affairs and Fisheries  (KKP) is carried out by looking at the position data of the ship recorded by the VMS, as well as looking at the fishing logbook by fishermen. The study aimed to identify the characteristics of purse seine vessels using VMS data derived from KKP and looked at the degree of conformity of VMS data with fishing logbooks. The method used in this research is descriptive analysis methods. Fishing ground data is mapped using spatial data processing software. The results showed that the characteristics of purse seine vessels in 2017 were most in operation in April - July, 2018 in January - June, and in 2019 in May. Cross-matching fishing logbook with VMS data from 2017 - 2019 increased by 68% in 2017, 80% in 2018, and 83% in 2019. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/40897 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/48021 2025-04-15T08:33:55Z saintek:RSA

nmb a2200000Iu 4500 "240430 2024 eng " 2549-0885 1858-4748 dc Wardhana, R.A Media Graha Siswi Badan Riset dan Inovasi Nasional Semakin berkembangnya budidaya udang vaname membuat permintaan akan benih yang berkualitas juga semakin meningkat hal ini dikarenakan kualitas benih memegang peranan penting pada tingkat pembesaran. Salah satu kendala dalam kegiatan pembenihan adalah kurangnya produksi nauplius akibat kurangnya stok induk yang berkualitas. Kegiatan ini bertujuan untuk mengetahui performa reproduksi induk udang vaname hasil pemuliaan dengan seleksi famili. Observasi performa induk dilakukan selama 3 tahun berturut-turut pasca 3 bulan induk betina diablasi dengan durasi pengambilan data setiap tahunnya masing-masing selama tujuh hari berturut-turut. Hasil observasi tahun 2019, 2020 dan 2021 menunjukkan prosentase induk matang gonad 10,57±2,27; 10,59±2,58; 11,00±5,71. Prosentase induk mating 50,20±34,19; 52,05±10,22; 45,00±35,72. Rata-rata produksi telur 243.565±57.030; 162.632±37.446; 153.478±50.604. Rata-rata produksi nauplius 139.945±55.963; 103.310±43.656; 99.000±41.325. Hatching rate 65,73±32,68; 66,00±26,00; 66,00±33,00. Rata-rata setiap tahun terjadi peningkatan induk betina matang gonad sebesar 2,03% dan hatching rate sebesar 0,21%. Namun, setiap tahun terjadi penurunan juga pada beberapa parameter lainnya, yaitu induk mating sebesar 4,9%, rata-rata produksi telur 19,43% dan rata-rata produksi nauplius 15,18%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 https://ejournal.undip.ac.id/index.php/saintek/article/view/48021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/48021/151784 Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13184 2020-04-17T19:23:45Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc POLA GERAKAN STADIA UMUR KEPITING BAKAU (Scylla serrata) DALAM MERESPON MAKANAN YANG BERBEDA (SKALA LABORATORIUM) The Model Movement of Mud Crab’s Life Stage (Scylla serrata) in Responds to Different Food (Laboratory Scale) Supadminingsih, Fahresa Nugraheni Awardee LPDP Kemenkeu, Teknologi Perikanan Laut, Institut Pertanian Bogor Fitri, Aristi Dian Purnama Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Asriyanto, Asriyanto Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Tingkah Laku; Makanan; Pola Gerakan; Umur; Kepiting Bakau   Kepiting bakau merupakan salah satu jenis crustacea yang daur hidupnya memiliki beberapa tahapan tingkatan umur berdasarkan lebar karapas. Habitat kepiting bakau terdapat di perairan estuari hingga laut dengan kebiasaan hidup yang berbeda, terutama dalam mencari makanan dan habitat tiap stadia. Penelitian ini bertujuan untuk mengetahui pola tingkah laku kepiting bakau pada stadia umur yang berbeda terhadap makanan. Materi penelitian adalah  kelompok umur kepiting muda (lebar karapas 8 cm) dan dewasa (lebar karapas 11 cm) serta jenis makanan berupa makanan kepala ayam, ikan petek dan keong mas yang ketiganya dalam keadaan segar. Metode penelitian menggunakan eksperimen skala laboratorium dengan 2 variabel umur dan makanan dengan 6 perlakuan secara deskriptif. Hasil penelitian mengindikasikan terdapat 2 pola gerakan pola tingkah laku dimana kepiting dewasa memberikan respon langsung, sedangkan kepiting muda menunjukkan respon tidak langsung terhadap makanan.     The Mud Crab’s  is one of crustaceans species that their life circle have some stage based on carapas length. The Mud crab’s live in differences behavior between  estuarine trought deep sea, mostly in the feeding behavior in the different life stage. The purpose of this study is to know the model movement between life stage factor towards food factor. The materials used  in this research are sub-adult (carapace width 8 cm) and adult (carapce 11 cm) mud crab and the types of  fresh food in the form of chicken’s head, leiognathus fish, and golden snail. The methods used in this reasearch are  experimental laboratory  with two variables: the types of bait and life stage with six treatments. The result shows that the adult crab’s  movement give the direct responses, but the subadult crab give  the indirect responses to the food.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13184 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21369 2020-04-17T19:28:38Z saintek:RSA

nmb a2200000Iu 4500 "180301 2018 eng " 2549-0885 1858-4748 dc EFEKTIVITAS EKSTRAK LAMUN Cymodocea rotundata, Thalassia hemprichii, DAN Enhalus acoroides DARI PERAIRAN JEPARA SEBAGAI ANTIBAKTERI PADA FILLET IKAN NILA (Oreochromis niloticus) SELAMA PENYIMPANAN DINGIN (Effects Of Seagrass Extracts Cymodocea rotundata, Thalassia hemprichii, and Enhalus acoroides From Jepara As Antibacterials On Tilapia (Orechromis niloticus) Fillets During Cold Storage) Pradana, Nikolaus Eric Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Wardiwira, Fath F Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Hakim, Luqmanul Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Imamah, Azizatul Nur Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Istianisa, Winne Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Fillet ikan nila; Enhalus accoroides; Antibakteri; TPC Penanganan fillet ikan nila segar merupakan bagian penting karena dapat mempengaruhi mutu. Ikan nila memiliki pH mendekati netral yang merupakan media untuk pertumbuhan bakteri pembusuk maupun mikroorganisme lain sehingga mudah mengalami pembusukan. Penambahan bahan antibakteri dari jenis lamun diharapkan mampu menambah masa simpan fillet ikan nila. Ketiga jenis lamun, yaitu Cymodocea rotundata, Thalassia hemprichii, dan Enhalus acoroides digunakan pada penelitian pendahuluan, selanjutnya diambil salah satu yang terbaik untuk masuk dipenelitian utama. Lamun dikeringkan dengan cara diangin-anginkan,  lamun kering diekstrak dengan etanol 96% selama 2 x 24 jam dengan perbandingan bahan : pelarut (1 : 5). Ekstrak lamun disaring untuk memisahkan residu dan pelarut, filtrat diuapkan menggunakan rotary evaporator. Fillet ikan nila direndam ekstrak lamun dengan konsentrasi 20%, 25%, dan 30% selama 2 jam, kemudian diuji TPC dan organoleptik. Berdasarkan hasil  penelitian pendahuluan didapatkan Enhalus accoroides dengan konsentrasi 25% merupakan konsentrasi terbaik berdasarkan nilai TPC dan organoleptik. Penelitian selanjutnya adalah menambahkan ekstrak lamun Enhalus acoroides 25% dan tanpa penambahan ekstrak Enhalus acoroides sebagai control. Fillet dikemas menggunakan plastik seal dan disimpan pada suhu dingin 4oC dalam refrigerator dengan lama penyimpanan 0, 3, 6, 9, dan 12 hari. Fillet ikan nila yang disimpan pada suhu dingin menunjukkan bahwa perbedaan penambahan lamun dan lama penyimpanan memberikan pengaruh yang nyata terhadap nilai TPC pada hari ke-12 yaitu            1,16 x 105 CFU/g, nilai TVBN 26,67 mgN/100g, dan nilai pH sebesar 7,01   Handling fresh tilapia fillets is an important part because it can affect quality. Tilapia has a pH close to neutral which is a medium for the growth of decomposing bacteria and other microorganisms so that it can easily decay. The addition of antibacterial ingredients from seagrass species is expected to increase the shelf life of tilapia fillets. The three types of seagrass, namely Cymodocea rotundata, Thalassia hemprichii, and Enhalus acoroides were used in the preliminary study, then taken one of the best to enter in the main study. Seagrass is dried by aerating, dried seagrass is extracted with 96% ethanol for 2 x 24 hours with a ratio of ingredients: solvent (1: 5). Seagrass extract is filtered to separate the residue and solvent, the filtrate is evaporated using a rotary evaporator. Tilapia fillets were soaked with seagrass extract with concentrations of 20%, 25%, and 30% for 2 hours, then tested for TPC and organoleptic. Based on the results of preliminary research, Enhalus accoroides with a concentration of 25% was the best concentration based on the value of TPC and organoleptic. The next study was to add 25% seaweed extract Enhalus acoroides and without the addition of Enhalus acoroides extract as a control. Fillets are packaged using a plastic seal and stored at a cool temperature of 4oC in a refrigerator with a storage time of 0, 3, 6, 9, and 12 days. Tilapia fillets stored at cold temperatures showed that the difference in the addition of seagrass and storage time had a significant effect on the value of TPC on day 12, that is          1,16 x 105 CFU/g, the TVBN value was 26.67 mgN / 100g, and the pH value was 7.01. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21369 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6791 2014-04-28T09:15:58Z saintek:RSA

nmb a2200000Iu 4500 "080822 2008 eng " 2549-0885 1858-4748 dc PENGGUNAAN MEDIA KULTUR YANG BERBEDA TERHADAP PERTUMBUHAN Chlorella sp Chilmawati, Diana Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Suminto, Suminto Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Usaha budidaya ikan di perairan payau dan laut semakin berkembang dan tidak dapat terlepas dari tahap pembenihan. Diperlukan budidaya benih dengan pemberian pakan alami yang cukup dan berkualitas. Pakan alami belum dapat digantikan oleh pakan buatan terutama pada saat awal pemeliharaan larva. Salah satu jenis pakan alami adalah Chlorella sp. yang diberikan kepada jenis zooplankton maupun langsung kepada kultivan ikan atau udang. Media kultur Walne, Gullard’s f/2 dan Erdschreiber merupakan media yang cocok digunakan untuk mengkultur phytoplankton. Tujuan penelitian adalah mengetahui pengaruh penggunaan media Walne, Gullard’s f/2 dan media Erdschreiber terhadap pertumbuhan Chlorella sp dan mengetahui media terbaik dari ketiga media tersebut terhadap pertumbuhan Chorella sp. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan 3 perlakuan dan 3 kali ulangan, yaitu perlakuan A menggunakan Media Walne, perlakuan B menggunakan Media Guillard’s f/2, dan perlakuan C menggunakan Media Erdschreiber. Hasil penelitian menunjukkan bahwa penggunaan media kultur yang berbeda berpengaruh nyata (P<0,05) terhadap waktu lag phase dan berpengaruh sangat nyata (P<0,01) terhadap konstanta pertumbuhan spesifik, puncak populasi dan kepadatan akhir Chlorella sp. Media Guillard f/2 memberikan pertumbuhan Chlorella sp terbaik dengan waktu lag phase tercepat (0,290 hari), konstanta pertumbuhan spesifik terbaik (0,655), puncak populasi tertinggi (8,53 x 107  sel/ml) dan kepadatan akhir tertinggi (2,77 x 106 sel/ml)   Kata Kunci : media, kultur, pertumbuhan, Chlorella sp Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6791 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/22066 2020-04-17T19:30:17Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc PRODUKSI Chlorella sp. DENGAN PERLAKUAN LIMBAH CAIR TAMBAK UDANG VANAME (Litopenaeus vannamei) STERIL (Production of Chlorella sp. with Steril White Shrimp (Litopenaeus vannamei) Liquid Waste Treatment) Tangguda, Sartika Program Studi Budidaya Kelautan, Jurusan Perikanan dan Kelautan Fakultas Matematika dan Ilmu Pengetahuan Alam,Universitas Pendidikan Ganesha Prasetia, I Nyoman Dodik Program Studi Budidaya Kelautan, Jurusan Perikanan dan Kelautan Fakultas Matematika dan Ilmu Pengetahuan Alam,Universitas Pendidikan Ganesha Limbah cair steril; produksi Chlorella sp.; kultur skala laboratorium Limbah cair tambak udang vaname (L. vannamei) merupakan hasil buangan dari proses budidaya yang umumnya langsung dibuang ke perairan umum. Limbah tersebut masih mengandung sejumlah unsur hara yang diperlukan untuk pertumbuhan organisme pada tingkatan trofik dibawahnya, salah satunya adalah mikroalga Chlorella sp. Namun, pada limbah tersebut masih ditemukan sejumlah organisme yang mengganggu pertumbuhan Chlorella sp. sehingga limbah harus disterilkan terlebih dahulu sebelum digunakan untuk menumbuhkan mikroalga tersebut. Tujuan dari penelitian ini adalah untuk mengetahui dosis limbah cair tambak udang vaname steril dalam produksi Chlorella sp. Penelitian ini menggunakan metode eksperimental dengan 4 perlakuan, yaitu A (dosis limbah 25%), B (dosis limbah 50%), C (dosis limbah 75%), dan D (dosis limbah 100%); masing-masing perlakuan diulang sebanyak 3 kali. Hasil penelitian menyatakan bahwa perlakuan D memberikan produksi Chlorella sp. tertinggi yang dapat dilihat dari kepadatan sel dan laju pertumbuhan spesifik pada saat puncak pertumbuhan, yaitu 2.833.333 sel/mL dan 0,472. Dari hasil penelitian ini dapat disimpulkan bahwa limbah cair tambak udang vaname steril dengan dosis 100% dapat digunakan untuk mengkultur Chlorella sp. skala laboratorium dengan menghasilkan produksi mikroalga tertinggi. Diharapkan limbah yang berasal dari hasil budidaya udang vaname dapat dimanfaatkan untuk mengkultur mikroalga sehingga mengurangi pencemaran yang terjadi di perairan umum sekitarnya.   Liquid waste of vaname shrimp ponds (L. vannamei) is the result of waste from the cultivation process which is generally discharged directly into public waters. The waste still contains a number of nutrients needed for the growth of organisms at the lower trophic level, one of which is Chlorella sp. However, in these wastes there are still organisms that interfere with the growth of Chlorella sp. therefore the waste must be sterilized before using it to grow the microalgae. The purpose of this study was to determine the dose of liquid waste of sterile vaname shrimp ponds in the production of Chlorella sp. This study used an experimental method with 4 treatments, namely A (25% waste dose), B (50% waste dose), C (75% waste dose), and D (100% waste dose); each treatment was repeated 3 times. The results of the study stated that treatment D gave the production of Chlorella sp. the highest can be seen from cell density and specific growth rate at the peak of growth, which is 2,833,333 cells / mL and 0.472. The results of this study can be concluded that sterile liquid waste of vaname shrimp ponds with a dose of 100% can be used to culture Chlorella sp. laboratory scale by producing the highest microalgae production. It is expected that waste derived from vaname shrimp culture can be used to cultivate microalgae so as to reduce pollution in the surrounding public waters Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22066 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6818 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc Effect of Sugar On Dried-Spiced Fish Fillets Processing to The Quality Dewi, Eko Nurcahya Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro “Dendeng ikan” (dried-spiced fish fillets) is a traditionally processed fish product in Indonesia involving spicing and drying process. In terms of the quality the product has some problems such as the quality is not satisfying yet, the product contains highly palm sugar which cause the colour is too brown and the product is easily to be burn when it is fried, the taste is very sweet, the moisture content of the product is relatively  high.  Some  people  like  sweet  taste of  fish  product  but  some  do  not.  The  experiment  was conducted in order to find out the data on the effect of using the mixture of granulated sugar and palm sugar (1:1) and sorbitol on “dendeng ikan” processing to the preference value and moisture content of the product. The results showed that the mixture of granulated sugar and palm sugar (1:1) and sorbitol used on “dendeng ikan” processing did not affect significantly to the preference value of fried “dendeng ikan”. However, it caused the moisture content of the products differ significantly (P<0,05).   Key words : “Dendeng ikan”, dried-spiced fish fillets, preference value, moisture content Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6818 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/34478 2022-10-21T03:45:18Z saintek:RSA

nmb a2200000Iu 4500 "220825 2022 eng " 2549-0885 1858-4748 dc Wahono, Famella PG.Dipl.,M.Gz, Ir. Sumardianto Rianingsih, S.Pi., M.Sc, Laras Terasi adalah salah satu produk fermentasi yang terbuat dari udang rebon dengan penambahan garam yang berfungsi yaitu sebagai pengawet, pertumbuhan bakteri asam laktat dan memperbaiki mutu sensori terasi. Penggunaan jenis garam yang berbeda pada proses pembuatan terasi dapat berpengaruh terhadap karakteristik fisikokimia dan sensori terasi. Tujuan penelitian ini untuk mengetahui pengaruh penggunaan jenis garam yang berbeda terhadap karakteristik fisikokimia dan sensori terasi dan mengetahui jenis garam yang terbaik terhadap karakteristik fisikokimia dan sensori terasi. Penelitian ini bersifat experimental laboratories dengan model Rancangan Acak Lengkap (RAL)  menggunakan faktor perbedaan jenis garam (Garam Krosok, Garam Bledug Kuwu dan Garam Himalaya) dengan tiga kali pengulangan. Parameter pengujian yang dilakukan yaitu kadar air, kadar garam, Aw, TPC BAL, pH, warna dan organoleptik. Data parametrik dianalisis dengan ANOVA dan BNJ, sedangkan data non parametrik menggunakan uji Kruskal-wallis dan Mann-Whitney. Hasil penelitian didapatkan nilai kadar air 30,62-31,41%; kadar garam antara 6,84-22,46%; Aw 0,64-0,66; TPC BAL 1,5 x 106 – 5,3 x 108; nilai pH 6,28-6,32; derajat warna oHue berkisar 72 -83o  menunjukan terasi berwarna yellow red ; dan nilai organoleptik terasi GK, GB dan GH secara berurutan 7,74 <µ< 8,16; 7,48 <µ< 7,85 dan  7,79 <µ< 8,12. Kesimpulan menunjukkan perlakuan jenis garam himalaya merupakan perlakuan terbaik dengan memberikan pengaruh nyata (P<5%) terhadap nilai kadar garam, TPC BAL, nilai a* redness dan rasa pada uji organoleptik.     Kata kunci: udang rebon; jenis garam; karakteristik terasi Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/34478 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/75435 2025-10-03T03:26:09Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc Adiyanto, Fajar Jenderal Soedirman University Fitri, Aristi Dian Purnama Hanifa, Irfan Suryanti, Ani Hartono, Sugeng Junaidi, Teuku Kajian mengenai jaring scoop net di perairan Cilacap masih tergolong minim. Keterbatasan data perikanan ini berdampak pada rendahnya pemahaman terhadap manfaat dan kontribusi alat tangkap tersebut terhadap perikanan skala kecil. Penelitian ini bertujuan untuk mengkaji nilai produktivitas jaring scoop net. Pengumpulan data dilakukan melalui observasi dan wawancara, sedangkan analisis produktivitas dihitung menggunakan pendekatan Catch per Unit Effort (CPUE). Hasil penelitian menunjukkan bahwa komposisi hasil tangkapan terdiri dari empat spesies, yaitu teri putih (Stolephorus commersonii), teri nasi (S. indicus), teri jengki (S. insularis), dan tembang (Sardinella fimbriata). Jenis tangkapan didominasi oleh teri putih (S. commersonii) sebesar 57,63%, sedangkan jumlah terendah berasal dari teri nasi (S. indicus) sebesar 0,7%. Nilai CPUE tertinggi yang diperoleh adalah 500 kg/trip, rata-rata sebesar 260 kg/trip, dan terendah sebesar 77 kg/trip. Tangkapan spesies S. commersonii paling banyak diperoleh pada periode Agustus–Oktober. Periode tersebut bertepatan dengan musim puncak migrasi dan pemijahan ikan pelagis kecil di perairan selatan Jawa, yang ditandai dengan suhu perairan yang lebih hangat dan peningkatan ketersediaan fitoplankton sebagai sumber makanan utama. Hasil ini menunjukkan bahwa produktivitas jaring scoop net masih cukup tinggi dan dapat dimanfaatkan sebagai dasar pertimbangan dalam pengelolaan perikanan skala kecil yang berkelanjutan di wilayah pesisir Cilacap. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/75435 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16822 2020-04-17T19:26:53Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc PENGARUH PERBEDAAN SPESIES IKAN TERHADAP HIDROLISAT PROTEIN IKAN DENGAN PENAMBAHAN ENZIM PAPAIN (The Effect of Various Fish Species On Fish Protein Hydrolysate With The Addition of Papain Enzyme) Annisa, Strata Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Darmanto, Yudhomenggolo Sastro Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Amalia, Ulfah Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ikan Nila; Ikan Bandeng; Ikan Cucut; Enzim Papain; Hidrolisat Protein Ikan   Hidrolisat protein ikan (HPI) dihasilkan dari proses penguraian protein ikan menjadi peptida sederhana maupun asam amino melalui proses hidrolisis oleh enzim, asam, atau basa. Enzim yang digunakan adalah enzim protease, baik yang berasal dari tanaman, hewan maupun mikroba. Tujuan dari penelitian ini adalah mengetahui pengaruh penambahan enzim papain terhadap karakteristik HPI dan menentukan optimum terbaik hidrolisat protein dari jenis ikan yang berbeda dengan penambahan enzim papain. Metode penelitian ini adalah experimental laboratories dengan menggunakan Rancangan Acak Lengkap (RAL). Perlakuan yang diterapkan adalah perbedaan jenis ikan yang meliputi ikan nila, ikan bandeng, dan ikan cucut. Data yang diperoleh dianalisis dengan menggunakan sidik ragam ANOVA dengan uji lanjut untuk menentukan nilai yang berpengaruh maupun tidak dengan uji BNJ (Beda Nyata Jujur). Hasil penelitian dari ketiga perlakuan didapatkan HPI terbaik yaitu rendemen  HPI nila 5,64% dengan kadar protein 30,17%, kadar air 9,06%, dan viskositas 1,91 cP sedangkan profil asam amino terbanyak adalah asam glutamat terutama pada HPI ikan cucut sebesar 4,183%.   Fish protein hydrolysate (FPH) is produced from the decomposition of fish protein become peptides and amino acids through hydrolysis by enzymes, acids or bases. The enzyme used are protease enzymes, both derived from plants, animals, and microbes. The purpose of this study was to determine the effect of papain enzyme addition on FPH characteristics and to determine the characteristics of the FPH and determine the best optimum of FPH from different fish species with the addition of the papain enzyme. This research method is experimental laboratories by using a Completely Randomized Design (CRD). The applied treatments applied are different fish species including tilapia, milkfish, and shark. The data obtained were analyzed by using ANOVA with further test to determine the value that influencd or not with BNJ test. The results of the research from the three treatments are yield FPH tilapia 5,64% with protein content 30,17%, water content 9,06%, and  viscosity 1,91 cP, while the highest amino acid profile is glutamic acid, especially in FPH shark 4,183%.    Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16822 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22912 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190727 2019 eng " 2549-0885 1858-4748 dc EFEK PEMBERIAN PROBIOTIK TERHADAP IKAN KOI (Cyprinus carpio) YANG TERINFEKSI Myxobolus sp. (Effect of Probiotics Treatment on Koi Carp (Cyprinus carpio) Infected With Myxobolus sp.) Caesar, Nico Rahman Program Studi Magister Budidaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Yanuhar, Uun Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Musa, Muhammad Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Probiotik; Cyprinus carpio; Myxobolus sp.; Eritrosit; Leukosit; Imunohistokimia; NF-KB Myxobolus merupakan ektoparasit yang berbahaya dan dapat mengakibatkan kematian hingga 80%. Dalam praktek akuakultur, probiotik telah digunakan dalam beberapa tahun terakhir probiotik menjadi bagian integral dari praktik budaya untuk meningkatkan pertumbuhan dan ketahanan terhadap penyakit. Tujuan penelitian ini mengetahui pengaruh pemberian probiotik terhadap hematologi dan respon imun ikan koi yang terserang Myxobolus sp. yakni eritrosit dan leukosit serta ekspresi Nuclear Factor-kappa Beta  (NF-kB). Metode yang digunakan yaitu metode eksperimen. Dalam penelitian ini dibagi ke dalam 4 perlakuan yaitu, perlakuan (A) Kontrol, (B) ikan koi terinfeksi Myxobolus sp., (C) ikan koi terinfeksi Myxobolus sp. dengan pemberian probiotik dosis 0,55 ml dan (D) ikan koi terinfeksi Myxobolus sp. dengan pemberian probiotik dosis 1,1 ml. Metode pemberian perlakuan dengan menambahkan probiotik pada 30 liter air pada bak pemeliharaan. Kemudian dilakukan pengamatan eritrosit dan leukosit. Serta dilakukan Imunohistokimia menggunakan antibodi NF-kB pada jaringan insang. Berdasarkan hasil pengamatan eritrosit diperoleh nilai rata – rata pada perlakuan A sebesar 1.666.667 sel/mm3, perlakuan B sebesar 1.940.000 sel/mm3, perlakuan C sebesar 1.776.667 sel/mm3 dan perlakuan D sebesar 1.836.667 sel/mm3. Hasil pengamatan leukosit diperoleh nilai rata – rata pada perlakuan A sebesar 119.800 sel/mm3, perlakuan B sebesar 492.800 sel/mm3, perlakuan C sebesar 308.533 sel/mm3 dan perlakuan D sebesar 318.400 sel/mm3. Selanjutnya, berdasarkan hasil Imunohistokimia  didapatkan hasil pada perlakuan A nilai DAB sebesar 15,1%, perlakuan B nilai DAB sebesar 31,7%, perlakuan C nilai DAB sebesar 53,5% dan pada perlakuan D nilai DAB sebesar 47,5 %. Dari penelitian ini dapat disimpulkan bahwa pemberian probiotik berpengaruh terhadap eritrosit dan leukosit serta dapat meningkatkan ekspresi NF-KB sebagai respon imun pada ikan koi (Cyprinus carpio) yang terinfeksi Myxobolus sp. Dosis optimal pemberian probiotik yaitu pada dosis 0,55 ml.   Myxobolus is a dangerous parasite that can kill up to 80% on koi carp pond.. Probiotic intake has been proven to change the composition of the microbiota, and therefore helps in the recovery of microbiota that are disrupted (by antibiotics or other risk factors) into favorable or normal compositions. The purpose of this study was to determine the effect of probiotic administration on hematology and the immune response of koi fish attacked by Myxobolus sp. namely erythrocytes and leukocytes and expression of Nuclear Factor-kappa Beta (NF-kB). The method used was an experimental by providing probiotics to fish that promoted Myxobolus sp. In this study it was divided into 4 treatments namely, (A) Control, (B) koi carp infected by Myxobolus sp., (C) koi carp infected by Myxobolus sp. with probiotic doses of 0.55 ml and (D) koi fish infected by Myxobolus sp. by administering a probiotic dose of 1.1 ml. The treatment methods were the fish immersed into 30 L of water that added by Probiotic. The hematological observation of koi fish,  erythrocytes and leukocytes, was observed and immunohistochemistry using NF-KB antibodies in the gill tissue which is the target of the entry of Myxobolus sp. on Koi fish. Based on the results of the treatment of erythrocytes obtained the value of A handling is 1,666,667 cells / mm3, handling B is 1,940,000 cells / mm3, handling C is 1,776,667 cells / mm3 and handling D is 1,836,667 cells / mm3. The results of leukocyte observations obtained an average value on treatment A of 119,800 cells / mm3, treatment B was 492,800 cells / mm3, treatment C was 308,533 cells / mm3 and treatment D was 318,400 cells / mm3. Furthermore, based on the results of Immunohistochemistry, the results of handling A DAB value of 15.1%, handling B DAB value of 31.7%, handling C DAB value of 53.5% and at the time of treatment D DAB value of 47.5%. From this study it can be concluded that the treatment of probiotics affects erythrocytes and leukocytes and can increase the expression of NF-KB as an immune response in koi fish (Cyprinus carpio) infected with Myxobolus sp. The optimal dose of probiotics is at a dose of 0.55 ml  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22912 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6842 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Detergent to Mortality Level and Structural Damage of Gill Tissues on Nila Fish (Oreochromis niloticus L.) Suparjo, Mustofa Niti Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan Dan Ilmu Kelautan Universitas Diponegoro Nila fish (O. niloticus) is one of important commodity of fishery in Indonesian freshwater. One of effort to obtain the satisfying result in this activity was supported with good quality of water condition. The large volumes of detergent used, as cleanser in society, have the potential of happening contamination in aquatic environment. Condition of territorial water which progressively deteriorate will influence the organism which live in it.The aims of this research was to know influence of surfactan detergent  (LAS) Linear Alkylbenzena Sulfonat to mortality level and structural damage of gill tissues on Nila fish (O. niloticus). The method which is used is a laboratory experiment using a completely randomised design consisting of 5 treatments and 3 replicates for each treatment. Result of antecedent test is value float for from LAS with the concentration equal to 100 mg/L, while sill of under detergent concentration is   10 mg/L. At continuation research, by using analysis probit indicated that the value of LC50-96 hours surfactan on Nila fish equal to 8,716 mg/L. While from perception result microscopicly indicate that happened the change at network of gill of Nila fish (O. niloticus) that is hiperplasia, lamellar fusion, hemorrhagi and atrofi. From the research result can be concluded that detergent have an effect into mortality and also structural damage of gill tissues as important organ of respiration at Nila fish (O. niloticus). Excelsior of detergent concentration hence mortality of Nila fish excelsior also. Key Word : Detergent; Nila Fish; Mortality; Gill Damage. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6842 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/22073 2019-02-14T11:35:46Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/74420 2026-02-09T03:14:26Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Elya, Ica Politeknik Ahli Usaha Perikanan Hermawan, Maman Hartono, Bambang Dwi Kinerja operasional PT. Perikanan Indonesia (Persero) menurun akibat ketidakpastian dan ketidakefisienan dalam rantai distribusi hasil perikanan. Penelitian ini bertujuan untuk mengidentifikasi permasalahan dalam sistem logistik serta merancang model sistem yang dapat meningkatkan efisiensi distribusi. Motode penelitian menggunakan Soft System Methodology (SSM) pada tahap 1 dan 2 untuk menganalisis akar permasalahan secara menyeluruh. Hasil penelitian menunjukan bahwa kendala utama dalam distribusi, khususnya pada pengadaan, penyimpanan, dan transportasi, berkaitan erat dengan kelemahan teknologi, infrastruktur, kelembagaan, serta interkoneksi. Faktor-faktor ini terbukti memberikan pengaruh yang dominan terhadap kelancaran sistem distribusi. Prioritas solusi yang disarankan meliputi: pelatihan dan penerapan teknologi penangkapan bagi mitra nelayan, implementasi  Internet of Things (IoT) pada cold storage, penjadwalan digital, perbaikan armada kapal, serta pengembangan sistem ERP dan aplikasi mobile untuk meningkatkan koordinasi dan akses informasi distribusi. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/74420 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23690 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200302 2020 eng " 2549-0885 1858-4748 dc KETERSEDIAAN AREA KERJA PADA EKS-KAPAL CANTRANG UNTUK MENGOPERASIKAN JARING INSANG OSEANIK (The Availability of working areas on the Ex-Cantrang Vessels to operate the Oceanic Gills Net) Islam, Muhammad Najib Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Novita, Yopi Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Iskandar, Budhi Hascaryo Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Area kerja; eks-kapal cantrang; jaring insang oseanik Pelarangan cantrang menyebabkan kapal-kapal yang selama ini mengoperasikan cantrang harus melakukan penggantian alat penangkapan ikan. Alat penangkapan ikan pengganti yang dominan dipilih oleh para pemilik eks-kapal cantrang adalah jaring insang oseanik. Penggantian cantrang dengan jaring insang oseanik pada eks-kapal cantrang dikhawatirkan akan berdampak terhadap keselamatan kerja nelayan di laut. Salah satu faktor yang mempengaruhi keselamatan kerja nelayan di laut adalah ketersediaan area kerja di atas dek. Penelitian ini bertujuan untuk mengidentifikasi ketersediaan area kerja pengoperasian jaring insang oseanik pada kapal jaring insang oseanik dan menilai kesesuaian area kerja pengoperasian jaring insang oseanik pada eks-kapal cantrang. Analisis data menggunakan metode deskriptif komparatif dan numerik komparatif antara area kerja pengoperasian jaring insang oseanik pada eks-kapal cantrang dan kapal jaring insang oseanik. Parameter yang dibandingkan adalah ketersediaan area kerja di atas dek dan area kerja bagi setiap ABK saat mengoperasikan jaring insang oseanik, baik pada tahapan setting, hauling, maupun handling. Hasil penelitian menunjukkan bahwa ketersediaan area kerja pengoperasian jaring insang oseanik pada kapal jaring insang oseanik sebesar 33,27 – 35,77 m2 saat setting, 43,20 – 45,55 m2 saat hauling, dan 14,93 – 15,70 m2 saat handling. Ketersediaan area kerja bagi ABK untuk mengoperasikan jaring insang oseanik pada pada kapal jaring insang oseanik untuk tahapan setting sebesar 1,79 – 1,89 m2/orang, untuk tahapan hauling sebesar 1,18 – 1,23 m2/orang, dan untuk tahapan handling sebesar 1,44 – 1,51 m2/orang. Ketersediaan area kerja pada eks-kapal cantrang mencukupi untuk mengoperasikan jaring insang oseanik, kecuali eks-kapal cantrang yang memiliki bangunan tambahan pada area dek kerja utama.    Prohibition of cantrang causes the vessels operate cantrang should do a replacement fishing gear. Replacement fishing gear chosen by the owners of the vessels is oceanic gill nets. The replacement of cantrang to the oceanic gill nets on ex-cantrang vessels feared would affect the safety of fishermen at sea. One of the factors that affect the safety of fishermen at sea is the availability of working areas on deck. This research aimed to identify  the availability of working areas to operate oceanic gill nets on the oceanic gill nets vessels and assess the suitability of working areas on ex-cantrang vessels to operate oceanic gill nets. Data analysis used the comparative descriptive and numerical comparisons methods between the working areas of ex-cantrang vessels and oceanic gill nets vessels. Parameters compared was the availability of a working areas on deck  and working areas for crews when operating oceanic gill nets, both when setting, hauling, and handling catches. The results showed that the the availability of a working areas to operate an oceanic gill nets on the oceanic gill nets vessels is 33.27 - 35.77 m2 during setting, 43.04 - 43.55 m2 during hauling, and 14.93 - 15,70 m2 during handling.  The availability of a working areas for crew members to operate oceanic gill nets while setting was 1.79 – 1.89 m2/person, when hauling was 1.18 – 1.23 m2/person, and when handling was 1.44 – 1.51 m2/person. The availability of working areas on the ex-cantrang vessels is sufficient to operate oceanic gill nets, except for the the ex-cantrang vessels that has additional buildings on the main working deck area. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23690 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/23690/0 Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8097 2015-06-29T00:57:31Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc FEKUNDITAS DAN DIAMETER TELUR IKAN GABUS (CHANNA STRIATA BLOCH, 1793) DI DANAU TEMPE, KABUPATEN WAJO (Fecundity and Egg Diameter of Stripped snakehead (channa striata bloch, 1793) in Tempe Lake, Wajo) Harianti, Harianti Jurusan Perikanan, Sekolah Tinggi Teknologi Kelautan (Stitek) Balik Diwa Makassar Ikan gabus (Channa striata Bloch, 1793) adalah ikan air tawar yang memiliki kandungan albumin yang tinggi.  Produksi ikan gabus pada umumnya masih tergantung pada ketersediaan stok di alam.  Salah satu upaya yang dapat dilakukan untuk tetap memenuhi permintaan secara kontinyu adalah konservasi dan usaha pembudidayaan (pembenihan). Penelitian ini bertujuan untuk mengetahui fekunditas  dan diameter telur ikan gabus (Channa striata Bloch, 1793).  Hasil penelitian menunjukkan bahwa fekunditas ikan berkisar antara 1062-57.200 butir telur.  Diameter telur ikan berkisar antara 0.2000 – 0.9247 mm.  Berdasarkan pola sebaran diameter telur dan pengamatan histologis gonad, ikan gabus tergolong jenis partial spawner. Kata kunci : Fekunditas, Diameter Telur, Ikan Gabus Stripped snakehead (Channa striata Bloch, 1793) is a freshwater fish that have a high content of albumin. Stripped snakehead production in general is subject to availability of stock in the wild. One effort that can be done to keep a continuous demand is conservation and breeding efforts (seeding). This study aims to determine fecundity and egg diameter in Stripped snakehead (Channa striata Bloch, 1793).  The results showed that fecundity of the fish ranged from 1062-57.200 eggs.  Egg diameter ranged from 0.2000 to 0.9247 mm. Based on the distribution pattern of egg diameter and gonad histological observation, fishing corks quite partial spawner type. Key words : Fecundity, Egg Diameter, Stripped Snakehead Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8097 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/376 2014-05-19T10:45:55Z saintek:RSA

nmb a2200000Iu 4500 "110719 2011 eng " 2549-0885 1858-4748 dc PENERAPAN SELEKSI FAMILI F3 PADA IKAN NILA HITAM (Oreochromis niloticus) Yuniarti, Tristiana Hanif, Sofi Balai Besar Pengembangan Budidaya Air Tawar Sukabumi Hardianto, Dian Balai Besar Pengembangan Budidaya Air Tawar Sukabumi ABTSRAK Pemuliaan ikan nila di Indonesia merupakan kegiatan perekayasaan yang sangat penting dilakukan untuk menigkatkan mutu genetik ikan nila yang ada di masyarakat. Metode Seleksi Famili telah digunakan sebagai satu metode efektif untuk mendapatkan strain induk nila yang lebih unggul. Pada tahun 2005 telah berhasil membuat generasi pertama seleksi famili sebanyak 35 famili, tahun 2006 telah menghasilkan 49 famili dan tahun 2007 menghasilkan 39 famili. Masing-masing famili terdiri dari dua sub populasi yaitu induk jantan dan induk betina. Jumlah populasi hasil seleksi pada sub populasi jantan dan betina masing-masing dapat memenuhi jumlah top grad minimal 15 ekor jantan dan 15 ekor betina. Jumlah famili yang memijah 39 famili. Hasil cut off pada masing-masing sub famili mempunyai bobot rataan 120,14+7,3 g pada sub populasi jantan dan 97,36 + 2,6 g pada sub populasi betina. Mutu genetik yang diperoleh pada generasi F3 menghasilkan nilai heritabiliti sebesar 0,142 dengan respon seleksi 25,4 g. Proses seleksi masih perlu dilanjutkan kepada generasi ke-4 untuk memperoleh generasi yang lebih unggul. Kata Kunci: Tilapia, program pemijahan, seleksi famili ABSTRACT Genetic improvement of tilapia in Indonesia is very important in order to improve the tilapia quality. Family selection method was known as an effective method to get higher quality brood stock. In 2005, 35 first generation of families selection were successfully done, in 2006, 49 families were produced and in 2007, 39 families were produced. Each family consisted of two sub population, i.e. male and female brood stocks. The number of male and female sub population selection could fulfill the top grade minimal number of 15 males and 15 females. 39 families spawned. The cut off results of each sub family had average body weight of 120.14 ± 7.3 g for male sub population and 97.36 ± 2.6 g for female sub population. The genetic quality which was obtained on F3 generation had a heritability value of 0.142 with selection respond 25.4 g. The selection process was still needed to be continued on F4 generation to get better quality generation Key words: Tilapia, breeding program, family selection Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/376 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/44449 2023-02-10T03:38:44Z saintek:RSA

nmb a2200000Iu 4500 "221028 2022 eng " 2549-0885 1858-4748 dc SQUID PRODUCTION ON INCOME AND POVERTY LEVEL OF FISHERMEN'S HOUSEHOLDS IN PESAWARAN REGENCY, LAMPUNG PROVINCE Riantini, Maya Study Program of Agribusiness, Faculty of Agriculture, University of Lampung, Indonesia fisherman; economy; squid; education; season Squid (Loligo spp.) contains a high nutritional value and is a fishery resource that can be used as an economic source so that the catch fishery products can be utilized by fishermen to support their household needs. The aim of this study was to determine the relationship between squid fishing and the income and poverty level of fishermen's households. This study was conducted in Sukajaya Lempasing Village, Teluk Pandan District, Pesawaran Regency, Lampung. This study used questionnaires and interviews with 20 respondents of squid fishermen. The results showed that fishermen's education was 75% at the elementary level, and fishermen became the main occupation by 55%. The income of squid fishermen had differences in the catch period, namely the catch of season 1 (2,148,092 IDR) and season 2 (1,352,992 IDR). Based on the BPS category 80% of fishing families are classified as poor, according to the World Bank 90 % during squid season and 100% during the non-squid season are in the category of poor, and according to ADB 50% is classified as poor and 90% is poor during the squid season and not the squid season. Because of these differences, it is necessary to manage local resources to reduce poverty by increasing the awareness of squid fishermen in financial management, supported by increasing local government capacity, and revitalizing local institutions. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-11-24 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/44449 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 3 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/24975 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200810 2020 eng " 2549-0885 1858-4748 dc PENINGKATAN PERTUMBUHAN DAN IMUNITAS BENIH TERIPANG PASIR, Holothuria scabra DENGAN MELALUI PEMBERIAN PROBIOTIK DALAM PAKAN (Improvement of Growth and Immunity of Sandfish, Holothuria scabra Juvenile Through the use of Probiotics in Feed) Sembiring, Sari Budi Moria Balai Besar Riset Budidaya Laut dan Penyuluhan Perikanan Gondol Astuti, Zeny Widi Balai Besar Riset Budidaya Laut dan Penyuluhan Perikanan Gondol Giri, Nyoman Adiasmara Balai Besar Riset Budidaya Laut dan Penyuluhan Perikanan Gondol Haryanti, Haryanti Haryanti Balai Besar Riset Budidaya Laut dan Penyuluhan Perikanan Gondol Imunitas; pertumbuhan; probiotik; benih; teripang pasir Probiotik sebagai suplemen pakan yang mengandung mikroorganisme untuk mengendalikan patogen, meningkatkan pertumbuhan dan kekebalan/respon imun. Tujuan penelitian ini untuk mengetahui pengaruh probiotik terhadap pertumbuhan, kekebalan dan kerentanan terhadap Vibrio sp pada teripang pasir. Metoda penelitian ini diawali dengan mengkultur probiotik Gamma proteobacterium strain M-4, Bacillus subtilis strain Q-1 dan Bacillus sp strain E-2 dengan kepadatan108-9 CFU/mL, pencampuran dalam pakan dan aplikasi probiotik untuk pemeliharaan benih teripang pasir. Pemeliharaan  benih teripang pasir dengan ukuran bobot tubuh  6,0 ± 1,4 g dan panjang total 4,3 ± 0,6 cm dalam bak beton volume 1m3 sebanyak 12 buah. Jumlah benih yang ditebar sebanyak 100 ekor/bak dan  penelitian berlangsung selama 4 bulan. Perlakuan adalah penggunaan pakan buatan dengan penambahan probiotik (A) dan  tanpa penambahan probiotik sebagai kontrol (B). Dosis pemberian pakan sebanyak 3% dari bobot tubuh dan frekuensi pemberian 1 kali. Parameter yang diamati adalah performa pertumbuhan dan tingkat imunitas setelah diuji tantang dengan V. azureus strain 4C-1. Tingkat imunitas dianalisis melalui ekspresi gen menggunakan RT-qPCR pada target gen: SOD, LZM dan CAT. Hasil yang diperoleh menunjukkan penggunaan kombinasi probiotik yang dicampur pada pakan pellet memberikan sintasan (95,3%) dan bobot akhir (10,3 g) lebih tinggi dan berbeda nyata (P<0.05) dibandingkan dengan kontrol (88,8% dan 8,1 g). Respon imunitas pada benih juga menunjukkan peningkatan.  19 - 21 kali lebih tinggi setelah diuji tantang dengan V. azureus, terutama pada target gen LZM dan SOD. Sebagai kesimpulan, penggunaan probiotik strain bakteri Gamma proteobacterium, Bacillus subtilis dan Bacillus sp. dapat meningkatkan pertumbuhan dan imunitas benih teripang pasir.    Probiotics as feed supplements to control pathogens and to promote growth and immune / immune responses. The study was to determine the effect of probiotics on growth, immunity and susceptibility to the pathogen Vibrio sp. Research method begins with culturing probiotics Gamma proteobacterium strain M-4, Bacillus subtilis strain Q-1 and Bacillus sp strain E-2 each to a density of 108-9 CFU/mL, mixed with the feed and applied probiotics for rearing of sand fish juvenile. Sandfish juvenile with body weight of 6.0 ± 1.4 g and total length of 4.3 ± 0.6 cm were reared in 12 concrete tanks, each 1m3 in volume. The number of juvenile stocked was 100 individual/tank and conducted in four months. Treatments were the use of artificial feed with the addition of probiotics (A) and without the addition of probiotics as control (B). Feeding rate applied was 3 % of total biomass and fed once per day. The parameters observed were growth performance and level of immunity after being challenged with V. azureus strain 4C-1. The immunity rate analized were gene expression using RT-qPCR and gene target were SOD, LZM and CAT.  The results obtained showed that the use of combination of probiotics and mixed in pellet feed gave a higher survival rate (95.3%) and a higher final weight (10.3 g) (P <0.05) compared to control pellet feed (88.8% and 8.1 g respectively). The immune response of juvenile was also improved 19-21 times higher after being tested with V. azureus, especially in the LZM and SOD gene targets. In conclusion, the role of the use of probiotics Gamma proteobacterium, Bacillus subtilis and Bacillus sp. were able to increase the growth and immunity of sandfish juvenile. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24975 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8114 2015-06-29T15:31:05Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc PROFIL RUMPUT LAUT Caulerpa racemosa DAN Gracilaria verrucosa SEBAGAI EDIBLE FOOD (Caulerpa racemosa and Gracilaria verrucosa Profile as Edible Foods) Ma’ruf, Widodo Farid Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Dewi, Eko Nurcahya Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Susanto, Eko Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Amalia, Ulfah Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Masyarakat terutama di pesisir pantai Jepara banyak mengkonsumsi Caulerpa racemosa dan Gracillaria verrucosa sebagai sayuran, namun tidak banyak diketahui tentang profil komposisi kimia, serat dan makromineral. Tujuan penelitian ini adalah untuk mengetahui komposisi kimia, serat, dan makromineral pada Caulerpa racemosa dan Gracilaria verrucosa yang tumbuh di perairan Jepara. C. racemosa diambil dari perairan Jepara dan G. verrucosa diambil dari dua jenis tambak yaitu tambak bersubstrat lumpur (a) dan pasir (b). Hasil analisa menunjukkan bahwa  karbohidrat merupakan nutrisi yang dominan, diikuti kadar abu G. verrucosa dan protein pada C. racemossa. Jumlah mineral C. racemosa berturut-turut Na > Ca > K. Sedangkan pada G. verrucosaa jumlah mineral berturut-turut K >Na >Ca dan G. verrucosab jumlah mineral berturut-turut Na >K >Ca. L-Threonine dan L-Glysine merupakan jumlah asam amino terbesar dalam rumput laut sedangkan L-asparagine tidak terdeteksi pada semua jenis rumput laut. Dilihat dari kandungan nutrisi dan mineral, kedua jenis rumput laut tersebut dapat dijadikan alternatif sebagai bahan  bahan pangan. Kata kunci : Caulerpa racemossa, gracilaria verrucosa, nutrisi, edible food Jepara community consume Caulerpa racemossa and Gracillaria verrucosa but there is no much information about their chemical composition, fiber, and macro-minerals. This research was aimed to knowing chemical composition, fiber and macro-mineral in C. racemossa and G. verrucosa which grow in Jepara water area. C. racemossa was taken from Jepara water and G. verrucosa was taken from mud substrat (a) dan sand substrat (b). Carbohidrate was the dominant compound in all seaweed, ash dominant compounds in G. verrucosa and protein dominant compound C. racemossa, repectivelly. Minerals content in C. racemosaare was Na > Ca > K, respectivelly. In addition, minerals content in G. verrucosaaare K >Na >Ca and G. Verrucosa (b) are Na >K >Ca, repectivelly. L-Threonine and L-Glysine were the dominant amino acids in all seaweeds, whereas L-asparagine was not detected in all seaweeds. According to nutrition and mineral content in all seaweeds, they are able to use as an  alternative food ingredients. Key words : Caulerpa racemossa, gracilaria verrucosa, nutrisi, edible food Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8114 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2052 2020-12-07T08:06:28Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Imitation Bait Colour of Skipjack Pole and Line Puspito, Gondo 1Staf Pengajar pada Bagian Teknologi Alat Penangkapan Ikan Departemen Pemanfaatan Sumberdaya Perikanan, FPIK - IPB 1Staf Pengajar pada Bagian Teknologi Alat Penangkapan Ikan Departemen Pemanfaatan Sumberdaya Perikanan, FPIK - IPB A serial experimental fishing using skipjack pole and line had been carried out for 14 days from July to October 2007 in Banda Sea. The aim was to obtain the most productive colour of imitation bait to catch skipjack. The research tested three colours of imitation bait those were  red, silver and green. Result showed that the silver colour of imitation bait caught more skipjack than those two other colours. Its hook rate was 0.67 fish/minute, followed by red and green with hook rate of  0,58 fish/minute and 0.47 fish/minute.   Key Words: Imitation Bait, Life Bait, Pole and Line, Skipjack. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2052 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49441 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230426 2023 eng " 2549-0885 1858-4748 dc Puspitasari, Yunita Eka Program Studi Pengolahan Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya, Malang, Indonesia https://orcid.org/0000-0002-1933-0435 Tampubolon, Hezkiel Oktorully Fajrin, Alifiah Nur Sulistiyati, Titik Dwi Hardoko, Hardoko https://orcid.org/0000-0002-0395-9589 α-glucosidase memiliki peran penting dalam metabolisme karbohidrat pada tubuh manusia dengan bekerja memutus rantai oligosakarida menjadi gula sederhana seperti monosakarida.Penghambatan aktivitas α-glucosidase menjadi salah satu mekanisme untuk mengendalikan kadar glukosa dalam darah penderita diabetes. Obat herbal sebagai inhibitor α-glucosidase bersumber dari bahan alami laut khususnya mangrove menarik perhatian. Buah pedada Sonneratia alba telah diketahui mengandung senyawa fitokimia yang berpotensi sebagai antidiabetes, akan tetapi belum pernah dilaporkan kandungan senyawa bioaktif yang berperan sebagai inhibitor α-glucosidase. Kelimpahan daun pada tanaman mangrove lebih tinggi daripada buah sehingga pada penelitian ini menggunakan daun sebagai penghambat aktivitas α-glucosidase. Tujuan dari penelitian ini adalah untuk menganalisa profil senyawa fitokimia flavonoid dari ekstrak etil asetat daun pedada S. alba, dan untuk menentukan senyawa fitokimia tersebut yang berperan sebagai inhibitor α-glucosidase secara in silico melalui penambatan molekuler. Hasil penelitian menunjukkan tiga senyawa fitokimia flavonoid dari ekstrak etil asetat daun pedada S. alba seperti luteolin, apigenin, dan diosmetin telah diidentifikasi. Menurut kaidah Lipinski, analisa druglikeness dan toksisitas, maka semua senyawa tersebut aman untuk dikonsumsi, Hasil penambatan molekuler menunjukkan energi ikatan yang dihasilkan dari interaksi reseptor dan ligan uji lebih rendah daripada energi ikatan dari reseptor dan ligan kontrol maupun alami. Sehingga dapat disimpulkan bahwa luteolin, apigenin dan diosmetin dari ekstrak etil asetat daun pedada berpotensi sebagai inhibitor α-glucosidase.   α-glucosidase plays an important role in carbohydrate metabolism in the human body by breakdown oligosaccharides into monosaccharides. The inhibition of α-glucosidase activity is one of the mechanisms for controlling blood glucose levels in diabetes patients. Herbal drug as an α-glucosidase inhibitor from marine resources, especially mangroves is attracting interest. The fruit of Sonneratia alba contains phytochemical compounds potent as antidiabetic but no report related to their bioactive compound as inhibitor α-glucosidase. The abundance of leaves is higher than the fruit; therefore, in this study, the leaves will be used as α-glucosidase inhibitors. This study aimed to profile bioactive compounds of ethyl acetate extract of pedada S. alba leaves and to evaluate phytochemical compounds of S. alba leaves as α-glucosidase inhibitors using molecular docking in silico. The results showed that three phytochemical compounds of ethyl acetate extract of S. alba leaves, such as luteolin, apigenin, and diosmetin have been identified. According to the Lipinski’s rule, drug likeness, and toxicity test, all compounds are safe to consume. Docking studies showed that binding energy between receptor and phytochemical compounds is lower than binding energy between receptor and ligand control. In conclusion, luteolin, apigenin and diosmetin of ethyl acetate extract of pedada S. alba leaves have potent as α-glucosidase inhibitors. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49441 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/36922 2025-02-06T11:23:26Z saintek:RSA

nmb a2200000Iu 4500 "201031 2020 eng " 2549-0885 1858-4748 dc POLLUTION INDEX AND SEDIMENTATION RATE BASED ON LAND USE AT BANJIR KANAL BARAT AND SILANDAK RIVERS, SEMARANG Ain, Churun Study Program of Aquatic Resources Management Departement of Aquatic Resources Faculty of Fisheries and Marine Science, Universitas Diponegoro https://sinta.ristekbrin.go.id/authors/detail?id=6016723&view=overview Rudiyanti, Siti Study Program of Aquatic Resources Management Departement of Aquatic Resources Faculty of Fisheries and Marine Science, Universitas Diponegoro Dominig, Amryta Study Program of Aquatic Resources Management Departement of Aquatic Resources Faculty of Fisheries and Marine Science, Universitas Diponegoro Adriani, Arina Study Program of Aquatic Resources Management Departement of Aquatic Resources Faculty of Fisheries and Marine Science, Universitas Diponegoro Asih, Dilia Puspita Study Program of Aquatic Resources Management Departement of Aquatic Resources Faculty of Fisheries and Marine Science, Universitas Diponegoro Pollution Index; Sedimentation Rate; Sediment Fractions; Land Use Land use around the river, can affect the condition water quality of waters. The purpose of this study are to determine the pollution index and the rate of river sedimentation, and land use around the Banjir Kanal Barat and Silandak River. The method for sampling was purposive sampling. Sampling was carried out in the Banjir Kanal Barat and Silandak River, each of which had 5 points and 2 repetitions (P1 and P2). The variables analyzed were TSS, BOD, COD, total coliform where analyzed with Indonesian Standard National (SNI); DO, pH, temperature, discharge of water analyzed with Water Quality Checker (WQC), Buchanan method used to analyzed sedimentation rate, and sediment fraction. The results of the study, showed that IP in the Banjir Kanal Barat River obtained an IP value of 4.13 (lightly polluted), while the Silandak River obtained an IP value of 4.69 (lightly polluted). The highest sedimentation rate in the Banjir Kanal Barat River with a value of 35.64 tons / day, while the Silandak River has the highest value of 55.81 tons / day. Sediment fraction in Banjir Kanal Barat River is dominated by clay, and Silandak River it is dominated by clay. Land cover in Banjir Kanal Barat river are 3% industry, 85% settlement, 0% water and 12% vegetation, and Silandak River are 7% industry, 69% settlement, 5% water and 7% vegetation. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/36922 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8328 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc Analysis of Crabs (Schyla sp) on Modification Fyke Net in Water Rembang District Asriyanto, Asriyanto Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Purnama F., Aristi Dian Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Pramonowibowo, Pramonowibowo Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Fyke net are classified as selective and friendly environment with the catches are still alive. Aim of modified fyke netto identify and analyze these tools to catch crabs (Schylasp) both from the aspect of the amount and weight. Fyke net without leader and the angle of the mouth into the net as the control treatment gave the highest catches Schyla sp (tail 246 and 1,352 g) compared with the modification Fyke net leader (tail 229 and 1,217 g) and the tilt angle that goes in the mouth nets (tails 186 and 1,115 g). The influence of currents and tides around the fishing ground and the behavior Schyla sp only at the bottom of the muddy water sindicate that with the addition leader and into the corner of the mouth Fyke net will hinder the movement of crab stoenter the catchable area Fyke net. Sign value = 0.02 indicates that there are differences in the control and modification Fyke net catches Schyla sp the spof the total catch. Keywords : Schyla sp, Modification fyke net, Rembang waters Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8328 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2726 2014-04-25T17:01:16Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc The Growth of Skeletonema costatum on Various Salinity Level’s Media Rudiyanti, Siti Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang ABSTRACT Skeletonema costatum is a good species phytoplankton for natural food since it has high chemical contents.  The research aims to know salinity influence to the growth of S costatum’s and its optimum salinity. Experimental method  is used with 4 treatments and 1 control. The primary research done to identify observation time and accurate interval salinity. Result of the primary research showed that S costatum’s growth can be observed clearly in every 18 hours and salinity level with interval of 3 0/00.  The salinity treatments used 230/oo, 260/oo, 290/oo, 320/oo, and 350/oo because of it’s salinity range of    S costatum. Cell density in each bottle sample is 20.000 cell/liter. The maximal population growth of       S costatum at salinity 23 0/00  is 2,5 x 104 cell /mL, salinity 26 0/00  is 2,58 x 104 cell/mL, salinity 29 0/00  is 3,03 x 104cell/m, and at control salinity 32 0/00  is 4,08 x 104 cell/mL, while at salinity 35 0/00  is 3,16 x 104 cell/mL. From the observation found that water quality of media is suitable to support population growth of S costatum. The best salinity for the growth of S costatum population is on the treatment of 32 0/00 salinity where the cell grown very fast and only need short time to reach out the top population. Whereas the optimum salinity is 33,26 0/00 on density of 3,48 x 104 cell/mL.                 Keywords : Skeletonema costatum, growth, optimum salinity. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2726 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/52448 2025-05-15T10:48:43Z saintek:RSA

nmb a2200000Iu 4500 "231231 2023 eng " 2549-0885 1858-4748 dc Sholahuddin, Muhammad Athoillah Airlangga University https://id.linkedin.com/in/yessy-aryanti-lestari https://orcid.org/0000-0002-7132-9984 Ikan nila merupakan komoditas andalan budidaya yang cukup banyak dikonsumsi oleh masyarakat luas, khususnya di Indonesia. Jeroan ikan nila segar memiliki komposisi kadar protein sebanyak 55,55% sehingga untuk meningkatkan nilai jualnya seringkali digunakan sebagai hidrolisat protein. Hidrolisis protein menggunakan enzim merupakan cara yang efektif, karena dapat membuat hidrolisat protein terhindar dari kerusakan asam amino tertentu. Enzim proteolitik memiliki banyak macam dan yang dapat digunakan sebagai penghidrolisis, dalam menghasilkan hidrolisat protein adalah enzim bromelin. Tujuan penelitian ini untuk mengetahui pengaruh jenis enzim proteolitik dan waktu hidrolisis terhadap aktivitas antioksidan dari hidrolisat protein dari limbah jeroan ikan nila Oreochromis sp. Penelitian ini menggunakan RAL 2 faktor dan masing-masing diulang sebanyak 3 kali. Faktor pertama yaitu konsentrasi enzim bromelin yang digunakan yakni konsentrasi kontrol, 1%, 2% dan 3%. Faktor yang kedua yaitu waktu hidrolisis antara lain 4 jam, 6 jam dan 8 jam. Data yang diperoleh dianalisis dan dilanjutkan dengan uji aktivitas antioksidan, uji derajat hidrolisis dan uji kadar protein. Hasil Penelitian menunjukkan bahwa konsentrasi enzim bromelin terbaik sebagai antioksidan adalah 3% dan waktu hidrolisis 6 jam dengan nilai IC50  89.91 µg/mL. Sementara Derajat Hidrolisis terbaik terdapat pada konsentrasi enzim 3%  dan waktu hidrolisis 6 jam dengan DH hingga 82,25%. Kadar Protein tertinggi pada perlakuan P2 6 jam (konsentrasi enzim bromelin 2%) sebesar 59,31%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-12-29 08:03:59 https://ejournal.undip.ac.id/index.php/saintek/article/view/52448 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 4 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/32704 2021-11-30T12:01:22Z saintek:RSA

nmb a2200000Iu 4500 "210424 2021 eng " 2549-0885 1858-4748 dc Asriyana, Asriyana Universitas Halu Oleo http://orcid.org/0000-0002-3407-6308 Halili, Halili https://orcid.org/0000-0001-8779-375X Aspek biologi suatu spesies sangat penting diketahui untuk memahami sejarah hidup suatu spesies. Informasi ini penting sebagai dasar pengelolaan sumber daya tersebut di perairan. Ikan sembilang, Plotosus canius (Hamilton, 1822) telah dilaporkan menjadi sumber daya dengan status terancam di beberapa lokasi. Tujuan penelitian adalah untuk menganalisis aspek biologi ikan sembilang (Plotosidae: Siluriformes) di perairan Teluk Kolono yang mewakili tiga musim yaitu musim barat, musim peralihan barat ke timur, dan musim timur. Pengumpulan contoh ikan dilakukan setiap bulan dari bulan Februari hingga Agustus 2020 dengan bottom gillnet bermata jaring 1¼, 1¾, 2, dan 3 inci. P. canius yang tertangkap mempunyai kisaran panjang dan bobot berturut-turut 15,5–31,3 cm dan 25,3–253,8 g. Ikan jantan dan betina menunjukkan pola pertumbuhan isometrik (b=3,06) dan allometrik negatif (b=2,15), sementara faktor kondisi tertinggi ditemukan saat musim barat berturut-turut 1,18±0,12 dan 1,27±0,35. Rasio kelamin relatif seimbang yaitu 1:1, sementara indeks kematangan gonad (IKG) bervariasi. IKG jantan tertinggi sebesar 0,56±0,01 terjadi saat musim peralihan barat ke timur sedangkan betina sebesar 1,83±2,06 saat musim timur. Hasil temuan ini akan mendukung upaya pengelolaan dan pengembangan konservasi ikan sembilang secara efektif di masa datang.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/32704 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/10556 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150828 2015 eng " 2549-0885 1858-4748 dc SEBARAN SPASIAL FISHING GROUND BERDASARKAN KESUBURAN PERAIRAN PADA MUSIM TIMUR DI PERAIRAN TELUK SEMARANG Fishing Ground Spatial Analysis based on Water Productivity at East Season in Semarang Bay Waters Ain, Churun Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jayanto, Bogi Budi Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Latifah, Nurul Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK   Perairan Teluk Semarang merupakan salah satu perairan yang banyak mendapat tekanan lingkungan seiring berkembangnya industri dan pemukiman di sepanjang pesisir Teluk Semarang. Walaupun demikian, perairan Teluk Semarang masih menyimpan potensi sumberdaya ikan karena dukungan posisi geografis daerah tropis yang dapat menyumbang kesuburan perairan. Kesuburan perairan merupakan parameter kualitas perairan yang dapat dijadikan sebagai indikator fishing ground. Tujuan dari penelitian ini adalah untuk 1) menganalisis parameter-parameter kesuburan perairan pada perairan Teluk Semarang secara spasial; 2) menganalisis dan menentukan daerah fishing ground berdasarkan indikator kesuburan perairan. Waktu penelitian dilakukan selama 2 bulan pada bulan Juni-Juli 2015. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif dan teknik pengambilan sampel menggunakan metode purposive sampling pada 6 stasiun yang merupakan daerah tangkapan ikan.  Hasil penelitian menunjukkan bahwa parameter-parameter kesuburan perairan yaitu klorofil-a berkisar antara 1,123-3,090 mg/l, fitoplankton berkisar antara 580-792 ind/l, zooplankton berkisar antara 55-154 ind/l. Sebaran spasial fishing ground menunjukkan bahwa Sebaran spasial fishing ground yang sangat sesuai dan sesuai sepanjang perairan Teluk Semarang dari perbatasan genuk sampai perbatasan tugu sedangkan daerah yang kurang sesuai pada perairan lepas pantai daerah semarang utara sampai genuk dengan kisaran kedalaman 6 sampai 16 meter.   Kata kunci : Kesuburan Perairan, Fishing Ground, Penginderaan Jauh, Teluk Semarang   ABSTRACT   Semarang bay waters is one of waters received a lot of environmentalpressure as the industry and domestic waste of semarang along the coast. Nevertheless , the semarang bay are still have the potential resources of fish because support position geographical the tropics that can be contributed waters productivity. Water productivity are parameters of quality of waters which can be used as indicators fishing ground. The aim of this study was to 1) analyze the parameters of the waters productivity in the Semarang Bay with spatial; 2) analyze and determine the fishing ground area based on indicators of waters productivity.Research during 2 months, until June to July 2015. Research methodology is quantitive and sampling techniques using a purposive sampling method at 6 stations in the Semarang bay waters that catch area. The results showed that the waters productifity parameters that chlorophyll-a range between 1.123-3.090 mg/l, phytoplankton ranged between 580-792 ind/l, zooplankton ranged between 55-154 ind/l. The spatial distribution of fishing ground shows that the area of fishing ground which very suitable and suitable are in the nearshore border area Semarang Genuk until Semarang Tugu and the not suitable areas along the Semarang bay waters from the border area off shore North Semarang until Genuk with depth 6 – 16 m.  Keywords : Waters productivity, Fishing ground, Remote sensing, Semarang bay waters  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/10556 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2789 2012-03-28T14:48:02Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Potential Commodity Based Fishing Technology Development in Lampung Bay Hariyanto, Tri Program Doktor Teknologi Kelautan Institut Pertanian Bogor Baskoro, Mulyono S Program Doktor Teknologi Kelautan Institut Pertanian Bogor Haluan, John Program Doktor Teknologi Kelautan Institut Pertanian Bogor Iskandar, Budhi H Program Doktor Teknologi Kelautan Institut Pertanian Bogor Lampung Bay and the adjacent water bodies, Northern Sunda Strait, Western Java Sea, is a potential area for fish capture armada which based in South Lampung Coast. Not all the areas have maximum potency since there is inadequacy for fish capture technical armada and seasonal environment dynamic. This investigation identified fisheries resources on Lampung Bay and fishing gear and potential commodities to developed. This identification implemented by analyzing the provided data to obtain the illustration of Catch Per Unit Effort (CPUE) in the Lampung Bay area. Fish capture at the Lampung Bay has been shown the indication of production decline. Therefore, the attempt of capture organizing at the Lampung Bay and the improving of fisherman competence and armada to capture at the Lampung Bay water bodies or Indian Ocean (reach ZEE) should be conducted. Selective fishing gear for catch the potential commodities applied at the Lampung Bay areas. Keywords: Lampung bay, fisheries management, CPUE. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2789 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/68935 2025-04-15T08:15:44Z saintek:RSA

nmb a2200000Iu 4500 "241027 2024 eng " 2549-0885 1858-4748 dc THE EFFECTIVENESS OF COMMUNITY-BASED SEA TURTLE MONITORING SUPPORTS HATCHING SUCCESS ON BANDO ISLAND, PIEH ISLAND MARINE PROTECTED AREA Widhayanti, Arintika Pekanbaru National Marine Conservation Area Office, Ministry of Marine Affairs and Fisheries Tyas, Diani Estining Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Diponegoro University, Jl. Prof Sudarto, SH, Tembalang, Indonesia, 50275 Nugraha, Adiguna Rahmat National Research and Innovation Agency Jasilah, Nur Pekanbaru National Marine Conservation Area Office, Ministry of Marine Affairs and Fisheries Hanif, Andriyatno Pekanbaru National Marine Conservation Area Office, Ministry of Marine Affairs and Fisheries Hamdika, Wahyu PT Pertamina Patra Niaga AFT Minangkabau Irfansyah, Rahmat Pekanbaru National Marine Conservation Area Office, Ministry of Marine Affairs and Fisheries Conservation; Community; Green Sea Turtle. Bando Island is an important part of Pieh Island Marine Protected Area which is a sea turtle nesting habitat in West Sumatra Province. Sea turtle conservation is carried out collaboratively by community groups driving conservation, island customs, and the people of Padang Pariaman Regency. The community groups and the island owners' customary law conduct sea turtle conservation on Bando Island. The purpose of this study was to identify community involvement in sea turtle monitoring activities and analyze the hatching success as an indicator of the effectiveness of community-based sea turtle monitoring on Bando Island. Field surveys were conducted from January 2020 to August 2024. The method used in analyzing research data were quantitative method. The community involvement in sea turtle monitoring consisted of observation, data collection, and reporting. The sea turtle species that landed were green sea turtles (Chelonia mydas) and hawksbill turtles (Eretmochelys imbricata). The number of eggs moved to semi-natural relocated nests is 13.123 and the number of hatchlings released is 10.699 green hatchlings and 1.730 hawksbill hatchlings. The effectiveness of community-based sea turtle monitoring can be seen from the discovery of sea turtle tracks that have the potential to find egg nests, the percentage of egg hatching in semi-natural relocated nests was 91,72% indicating optimal hatching power, and hatching success reaching 90.64% which is included in the high category. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-11 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/68935 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 3 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/40058 2021-12-03T00:57:43Z saintek:RSA

nmb a2200000Iu 4500 "211022 2021 eng " 2549-0885 1858-4748 dc SUCCESSFUL GENETIC CHARACTERIZATION OF BULLET TUNA (Auxis rochei) USING MICROSATELLITE MARKERS IN KARANGASEM BALI Agustina, Maya Loka Riset Perikanan Tuna Pharmawati, Made Universitas Udayana Junitha, Ketut Universitas Udayana Neritic tuna; microsatellite; DNA; genetic diversity Bullet Tuna (Auxis rochei) is classified under the neritic tuna group, which plays an essential role in small-scale fisheries in Karangasem Bali. The increasing catch of bullet tuna indicated its stock probably under threat. Therefore, genetic characterization is often required as the first step before building a conservation program. This study aims to categorize bullet tuna DNA using microsatellite. Of all five loci used, all were high polymorphism-type, with the number of alleles per locus varied between 18-27. Successful PCR (Polymerase Chain Reaction) created relatively high DNA concentration, ranging from 27.050 to 237.05 ng/ul, with a DNA purity level ranging from 2.073 to 2.239. Overall, the stock condition allegedly still in good condition, marked with high genes diversity (Ho=0.367-0.767 and He=0.934-0.966). All loci used can be amplified and well described. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/40058 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/71374 2025-04-15T08:09:35Z saintek:RSA

nmb a2200000Iu 4500 "241231 2024 eng " 2549-0885 1858-4748 dc EVALUASI PENERAPAN RENCANA PENGELOLAAN KAWASAN KONSERVASI PERAIRAN MAHAKAM WILAYAH HULU TERHADAP PESUT MAHAKAM (Orcaella brevirostris) DI DESA PELA, KABUPATEN KUTAI KERTANEGARA Dharmawan, Vito Balai Pengelolaan Sumber Daya Pesisir dan Laut Pontianak Ningwuri, Astrid Aditika Manajemen Sumberdaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Hasudungan, Kaisar Parti Balai Pengelolaan Sumber Daya Pesisir dan Laut Pontianak Riswanto, Achmad Balai Pengelolaan Sumber Daya Pesisir dan Laut Pontianak Pranata, Alfin Balai Pengelolaan Sumber Daya Pesisir dan Laut Pontianak Irawan, Dedy Balai Pengelolaan Sumber Daya Pesisir dan Laut Pontianak Saputra, Andrian Balai Pengelolaan Sumber Daya Pesisir dan Laut Pontianak Alkadrie, Syarif Iwan Taruna Balai Pengelolaan Sumber Daya Pesisir dan Laut Pontianak rencana pengelolaan; kawasan konservasi; pesut mahakam; Sungai Mahakam Pesut mahakam (Orcaella brevirostris) merupakan mamalia akuatik endemik yang hidup di Kawasan Konservasi Perairan Mahakam Wilayah Hulu. Statusnya sudah dikategorikan critically endangered oleh IUCN dan tergolong pada Appendiks I CITES. Penurunan populasinya yang terjadi setiap tahun menjadikan upaya konservasi penting untuk segera dilakukan. Upaya konservasi yang dilakukan oleh pemerintah adalah dengan menetapkan Kawasan Konservasi di Perairan Mahakam Wilayah Hulu Kabupaten Kutai Kartanegara melalui Keputusan Menteri Kelautan dan Perikanan Nomor 49 Tahun 2022. Penetapan kawasan konservasi ini didukung dengan Keputusan Direktur Jenderal Pengelolaan Kelautan dan Ruang Laut Nomor 61 Tahun 2023 tentang Rencana Pengelolaan Kawasan Konservasi di Perairan Mahakam Wilayah Hulu Kabupaten Kutai Kartanegara 2023-2042. Penelitian ini bertujuan untuk memberikan rekomendasi terhadap rencana pengelolaan kawasan konservasi yang telah dilakukan. Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Data primer yang diambil terdiri atas data pemahaman masyarakat, data kondisi sosial ekonomi masyarakat, serta data pemantauan penggunaan alat tangkap tidak ramah lingkungan. Hasil penelitian menunjukkan bahwa terdapat peningkatan pemahaman masyarakat terhadap kawasan konservasi setelah dilakukan sosialisasi. Namun, terdapat beberapa tantangan dan pelanggaran, seperti penggunaan alat tangkap tidak ramah lingkungan dan tingkat pendidikan masyarakat. Beberapa rekomendasi yang dapat diberikan terhadap rencana pengelolaan kawasan konservasi adalah: (1) peningkatan keterlibatan masyarakat melalui program pemberdayaan masyarakat, pendidikan penggunaan alat tangkap ramah lingkungan, dan pengembangan ekonomi alternatif yang berkelanjutan; (2) peningkatan pendidikan konservasi secara formal maupun informal; (3) pengenalan inovasi alat tangkap ikan dengan pemasangan perangkat akustik yang dapat mengusir pesut; dan (4) penguatan penegakan hukum dengan pelibatan champion atau warga desa yang tergabung dalam pokmaswas. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-31 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71374 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 4 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11146 2020-04-17T19:23:18Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc KARAKTER KIMIA KECAP IKAN DARI VISCERA IKAN MANYUNG (Arius sp.) YANG DIFERMENTASI DENGAN KADAR GARAM YANG BERBEDA Chemical characteristic of fish sauce from sea cat fish (Arius sp.) viscera fermented with different salt concentration Rianingsih, Laras Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Anggo, Apri Dwi Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kecap ikan; viscera ikan manyung; garam; karakter kimia   Salah satu kelemahan dari fermentasi tradisional adalah waktu fermentasi yang lama, untuk produk kecap ikan memerlukan waktu berbulan-bulan atau bahkan mencapai 2 tahun. Untuk menanggulangi masalah diatas dilakukan penelitian dengan menurunkan kadar garam untuk mempercepat proses hidrolisis protein pada produksi kecap ikan. Pengaruh dari perbedaan garam (15%, 20% dan 25% b/b) pada karakteristik kimia (total nitrogen, TVB, TMA dan amoniak) kecap ikan yang dibuat dari viscera Ikan Manyung (Arius sp.) diamati setelah 45 hari fermentasi. Produk kecap ikan dari viscera Ikan Manyung (Arius sp.) mengandung total N yang lebih rendah, TVBN, TMA dan ammonia dengan bertambahnya garam. Hasil terbaik adalah pada perlakuan kadar garam 20% karena telah mampu memenuhi standar kecap ikan dari Codex Allimentarius pada parameter total N, serta kadar TVBN, TMA dan amoniak yang relatif rendah.   Kata kunci: Kecap ikan; viscera ikan manyung, garam, karakter kimia     ABSTRACT   One of the drawbacks of traditional fermentation is a relatively long incubation. To overcome the problem above can be done by decreased levels of salt to accelerate hydrolysis in fish sauce production. The effect of different concentration salt (15%, 20% and 25% w/w )on the chemical characteristic(total nitrogen, TVB, TMA, dan ammonia) in fish sauce made from cat fish (Arius sp.) viscera were monitored after 45 days fermentation period. Fish sauce product from cat fish (Arius sp.) viccera contain lower total nitrogen, TVBN, TMA, ammonia with the increasing of salt. The best result was in the 20 % salt addition that could meet the Codex Allimentarius standard in total nitrogen content, and the value of TVB, TMA and ammonia was relative low compared to the other treatment.  Keywords: Fish sauce, cat fish viscera, salt, chemical characteristic Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11146 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21004 2020-04-17T19:28:34Z saintek:RSA

nmb a2200000Iu 4500 "180215 2018 eng " 2549-0885 1858-4748 dc EFISIENSI TEKNIS DAN SELEKTIVITAS ALAT TANGKAP JARING INSANG (GILLNET) TERHADAP KOMPOSISI HASILTANGKAPAN DI PERAIRAN SEMARANG (Technical Efficiency and Selectivity of Fishing Gear Gillnet to Composition of Fish Capture in Semarang Water) Putri, Vatharany Liana Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kurohman, Faik Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Fitri, Aristi Dian Purnama Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Efisiensi Teknis;Gill Net Pengoperasian Gill Net  akan berpengaruh terhadap stok sumberdaya ikan apabila tidak diatur dengan baik. Strategi manajemen sumberdaya ikan diperlukan agar optimalisasi hasil tangkapan dan kelestarian sumberdaya ikan tetap terjaga. Tujuan dari penelitian ini adalah untuk menganalisis nilai efisiensi teknis dan nilai selektivitas alat tangkap Jaring Insang (Gill Net ) terhadap komposisi hasil tangkapan. Metode penelitian yang digunakan adalah deskriptif bersifat studi kasus. Lokasi penelitian  di perairan Semarang. Obyek pengamatan adalah Gill Net .  Analisis data yang digunakan adalah uji Independent T-Test. Hasil Penelitian menunjukkan bahwa alat tangkap Gill Net  terdapat dua mesh size yaitu 1,4 inci dan 3,5 inci. Total hasil tangkapan Gill Net  dengan mesh size 1,4 inci sebesar 38.350 kg sedangkan Gill Net  dengan ukuran 3,5 inci sebesar 15.220 kg. Nilai efisiensi yang terdapat pada mesh size 1,4 inci adalah 30 sedangkan, mesh size 3,5 inci memperoleh poin sebesar 20. Berdasarkan pengolahan uji Independent T-test bahwa terdapat pengaruh signifikan antara komposisi hasil tangkapan Gill Net  terhadap mesh size 1,4 inci dan 3,5 inci. Kesimpulan yang diperoleh dari penelitian ini adalah status alat tangkap Gill Net  dengan mesh size 1,4 inci lebih efisien daripada mesh size 3,5 inci.   The way to operation the Gill Net  will affect the stock of fish resources if not properly regulated. Strategy to manage the fish resources is needed to optimize amount of catch and create the sustainable fish resources. The aim of research was to analyze level of technical efficiency and selectivity Gillnets to the composition of the catches. The research method used case study on technical efficiency Gillnets in Semarang’s waters. The results of the research, Gillnets have two mesh size, 1.4 inch and 3.5 inch. Total catch of Gillnets with mesh size 1.4 inch was 38.350 kg while Gillnets catch with mesh size 3.5 inch was 15.220 kg. Based on independence T-test that there was significant influence between the composition of Gillnets catches to mesh size 1.4 inch and 3,5 inch. efficiency point with mesh size 1,4 inch was 30, whereas mesh size 3,5 inch obtained 20 point. The conclusion from this research is stat us of fishing gear Gillnets with mesh size 1,4 inch more efficient than mesh size 3,5 inch. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21004 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6767 2014-04-25T16:55:02Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc Policy Analysis Towards Karimunjawa Fisherman Catching Activity Regency Jepara Wibowo, Bambang Argo Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Boesono, Herry Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Aditomo, Aryo Bayu Mahasiswa Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Karimunjawa National Park has pioneered in community development activities either through economic development, institutional strengthening, creation of alternative livelihoods and community  capacity building since 1998. This activity was expected to raise the public's readiness to participate in maintaining and preserving the Karimunjawa National Park. However, the participation in this context could place people as an object, not as a subject. Therefore, further study is needed on whether the conservation of biological diversity embodied in the Karimunjawa National Parks zoning really gave positive impact on  fishing communities and ecological sustainability. Moreover, fishermen only operate around coral reefs in shallow waters, making it very vulnerable to the violation of the National Park system zoning. The research method used in this research was descriptive method, while the sampling method used is purposive sampling. Data analysis methods used were SWOT and AHP analysis (Analytical Hierarchy Process). Policy strategies  to overcome the issue of the National Parks zoning is increased security in Karimunjawa conservation areas, increased cooperation between the BTN, DKP, and Tourism Department to maintain the potential of coral reef fishery resources in order to remain sustainable, the  allocation  of  funds  from  the  government  to  assist  BTN  monitored  overfishing,  illegal  fishing  ,  and environmental  pollution  from  damaged  fishing  gear,  and  the  provision  of  an  integrated  socialization  to encourage people to keep conserving the resources.   Key words: Karimunjawa National Park zoning, biodiversity conservation, AHP (Analytical Hierarchy Process) Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6767 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/31561 2022-04-19T17:13:22Z saintek:RSA

nmb a2200000Iu 4500 "220325 2022 eng " 2549-0885 1858-4748 dc Melianawati, Regina Kusumawati, Daniar Setiawati, Ni Ketut Maha Ikan kerapu sunu (Plectropomus leopardus) merupakan komoditas perikanan laut bernilai ekonomis tinggi, sehingga kegiatan pembenihannya penting untuk dilakukan. Salah satu aspek penting dalam pembenihan adalah pemberian pakan alami berupa zooplankton. Salah satu jenis zooplankton yang diketahui berpengaruh positif dalam pembenihan ikan kerapu sunu adalah kopepoda. Namun demikian, waktu awal pemberian kopepoda yang tepat hingga saat ini belum diketahui. Oleh karenanya, penelitian ini bertujuan untuk mengetahui waktu awal pemberian kopepoda yang tepat bagi larva ikan kerapu sunu. Perlakuan yang diujikan adalah pemberian kopepoda stadia naupli mulai larva umur 3 hari (A), 5 hari (B), 7 hari (C) dan pada umur 4 hari saja (D). Setiap perlakuan diulang 3 kali ulangan waktu. Penelitian dilakukan hingga sebagian besar larva telah menjadi juvenil pada umur 45 hari. Hasil penelitian menunjukkan bahwa larva yang diberi pakan kopepoda lebih awal, yaitu pada umur 3 dan 5 hari cenderung memiliki pertumbuhan yang lebih baik dan kelangsungan hidup yang lebih tinggi dibandingkan dengan pada larva yang diberi kopepoda mulai umur 7 hari maupun yang hanya diberi pada umur 4 hari saja. Larva yang diberi kopepoda secara kontinyu juga dapat mencapai fase metamorfosis lebih cepat. Jadi, waktu awal pemberian kopepoda cenderung berpengaruh terhadap pertumbuhan dan kelangsungan hidup larva ikan kerapu sunu meskipun secara statistik tidak berbeda nyata (P>0,05). Berdasarkan hasil penelitian ini maka pemberian kopepoda dalam pemeliharaan larva ikan kerapu sunu sebaiknya dilakukan secara kontinyu mulai larva umur 3 hari.   Coral trout (Plectropomus leopardus) is a marine fish which has highly economical value as prestigious seafood.  So, the cultivation of this species in hatchery should be conducted. One of the important factors in marine fish hatchery is the kind of zooplankton as the live feed during the larval stage. Previuos study indicated that copepods play a significant role in larvae rearing of coral trout. However, the right initial time to feed the larvae by copepods is still unknown. Therefore, this research was conducted  to determine the initial time of feeding copepods to coral trout larvae. The treatment tested was different initial time of feeding naupli stage copepods to larvae, that was started at 3 (A), 5 (B), 7 (C)  days after hatching, respectively and at 4 days old larvae only (D). Each treatment was performed with 3 time replications.  This study was done until mostly all of the larvae become juveniles at 45 days after hatching. The results showed that larvae on treatment (A) and (B) tended to have better growth and higher survival rate compared to larvae from treatment (C) and (D). Larvae which were fed copepods continuously also reached metamorphosis stage faster compared than the only once fed. Thus, the initial feeding time of copepods tended to influence the growth and survival rate of coral trout larvae event hough they were not statistically significant different (P> 0.05). Based on the result of  this research, feeding copepods to coral trout larvae in hatchery should be carried out continuously starting at 3 days old larvae. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/31561 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/71418 2025-08-04T07:38:23Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Awaludin, Rohmat Program studi perikanan laut tropis, universitas Padjadjaran Haetami, Kiki Priwirjanto, Gatot Hari Rostika, Rita Ikan glofish merupakan ikan hasil rekayasa genetik dengan menyisipkan gen fluoresen dari ubur-ubur yang awalnya dikembangkan untuk mendeteksi pencemaran lingkungan, khususnya polusi air. Gen ini memungkinkan ikan memancarkan cahaya khas saat terpapar senyawa kimia berbahaya. Seiring waktu, glofish lebih dikenal sebagai ikan hias karena penampilannya yang menarik. Namun, informasi mengenai pengaruh padat tebar terhadap ikan glofish masih terbatas sehingga menjadi kendala  dalam budidaya yang efisien dan berkelanjutan. Penelitian ini bertujuan untuk mengevaluasi padat tebar pada kelangsungan hidup ikan glofish. Penelitian ini menggunakan metode eksperimental dengan rancangan acak lengkap (RAL), 4 perlakuan dan 3 kali ulangan dengan perlakuan A = 1 ekor/L, B = 2 ekor/L, C = 3 ekor/L dan D = 6,7 ekor/L. Parameter yang diamati meliputi kelangsungan hidup, pertumbuhan panjang dan pertumbuhan bobot ikan glofish. Data dianalisis menggunakan analisis sidik ragam One-way ANOVA di software SPSS 24. Hasil uji ANOVA data terdistribusi normal (p > 0,05) dan terdapat pengaruh nyata antar perlakuan. Perlakuan terbaik diperoleh pada perlakuan A dengan tingkat kelangsungan hidup 73,3%. Padat tebar 1 ekor/L memberikan hasil terbaik terhadap kelangsungan hidup ikan glofish tetra. Hasil penelitian ini diharapkan menjadi acuan dalam menentukan budidaya ikan glofish yang optimal dan berkelanjutan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71418 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13195 2020-04-17T19:25:08Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc VALUASI EKONOMI SUMBERDAYA MANGROVE DI KELURAHAN MANGUNHARJO, KECAMATAN TUGU, KOTA SEMARANG Economic Valuation of Mangrove Resources in the Mangunharjo Village Tugu Sub District, Semarang City Setiyowati, Desti Program Studi Budidaya Perairan, Fakultas Sains dan Teknologi, Universitas Islam Nahdlatul Ulama, Jepara Supriharyono, Supriharyono Program Studi Manajemen Sumberdaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Triarso, Imam Program Studi Manajemen Sumberdaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro sumberdaya; mangrove; konversi; manfaat; valuasi ekonomi   Hutan mangrove merupakan salah satu sumberdaya yang memiliki fungsi dan peran penting dalam satu kesatuan ekosistem. Keberadaannya mendapat tekanan yang serius sebagai dampak dari konversi lahan untuk budidaya tambak intensif dan abrasi gelombang laut. Penelitian ini bertujuan untuk mengidentifikasi pemanfaatan sumberdaya mangrove,menganalisis valuasi ekonomi total (TEV) sumberdaya mangrove setelah dikonversi menjadi tambak, dan menganalisis nilai manfaat sumberdaya mangrove. Metode penelitian menggunakan metode proportional stratified random sampling. Metode analisis yang digunakan adalah metode identifikasi pemanfaatan sumberdaya mangrove, metode identifikasi manfaat dan fungsiekosistem mangrove, dan metode evaluasi kebijakan sumberdaya mangrove dengan menggunakan Analisis Manfaat Biaya. Hasil penelitian menunjukkan pemanfaatan sumberdaya mangrove yang dilakukan masyarakat lokal: perikanan tangkap ikan belanak, perikanan budidaya/tambak ikan bandeng dan udang windu, pembibitan mangrove, dan buah mangrove. Nilai ekonomi total sumberdaya mangrove di Kelurahan Mangunharjo saat ini seluas 7,1 ha ekosistem mangrove dan 75 ha tambak produktif sebesar Rp1.398.787.140 / tahun atau Rp160.480.161 / ha / tahun. Nilai manfaat sumberdaya mangrove yang tertinggi yaitu manfaat tidak langsung 63,77% (Rp892.000.000 / tahun atau Rp125.633.803 /Ha /tahun), nilai manfaat lainnya adalah manfaat langsung 33,30% (Rp465.739.500 /tahun atau Rp29.065.000 /ha /tahun), manfaat keberadaan 2,87% (Rp40.136.000 /tahun atau Rp5.652.958 /Ha /tahun), dan manfaat pilihan 0,07% (Rp911.640 / tahun atau Rp128.400 /ha /tahun).    Mangrove forest is one resource that has function and role in the ecosystems. Mangrove forests in Mangunharjo Village are under increasing pressures as the impact of land conversion for intensive aquaculture and ocean wave abrasion. The aim of this research was to 1)identify the utilization ofmangrove resource, 2) analyze the value of the total economic (TEV) resources after mangrove converted into ponds,and 3) analyze the value of the benefits of mangrove resources. The method applied in the research was a purposive random sampling proportional to get representative respondents. Data were analyzed with several methods of analysis:a methodof resource utilization of mangrove identification, methods of identifying the benefits and functions of mangrove ecosystems, and mangrove resource policy evaluation method using Cost Benefit Analysis. This research results showed that the utilization of mangrove resources by local people is mullet fishing, aquaculture/ponds milkfish and shrimp, mangrove seeds, and mangrove fruits.The total economic value of mangrove resources in the Mangunharjo Village currently covering 7,1 ha of mangrove forest and 75 ha for the ponds that is still productive for IDR 1398787140 per year or IDR 160480161 /ha / year.Value of the benefits of mangrove resources is the highest 63,77% indirect use value (IDR 892000000 /year or 125633803 /ha /year), the value of other benefits are the direct use value of 33,30% (IDR 465739500 /year or IDR 29065000 /ha /year), the existence use value of 2,87% (IDR 40136000 /year or 5652958 /ha /year), and option use value of 0,07% (IDR 911640 /year or128400 /ha /year).   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf application/msword https://ejournal.undip.ac.id/index.php/saintek/article/view/13195 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/42097 2022-10-21T03:37:31Z saintek:RSA

nmb a2200000Iu 4500 "220906 2022 eng " 2549-0885 1858-4748 dc Pratiwi, Fika Dewi Universitas Bangka Belitung Nugraha, Mohammad Agung Guskarnali, Guskarnali Wilayah Jelitik merupakan kawasan industri berdasarkan Peraturan Daerah, Kabupaten Bangka Nomer 3 Tahun 2005. Penyempitan alur sungai maupun muara sungai Jelitik akibat sedimentasi merupakan salah satu dampak yang kini dirasakan oleh masyarakat karena adanya aktivitas antropogenik di  hulu, aktivitas industri maupun aktivitas tambang timah di wilayah tersebut. Potensi peningkatan kesuburan perairan maupun peningkatan pencemaran muara sungai dapat berasal dari point source seperti industri atau non point source dari kawasan industri Jelitik. Berdasarkan permasalahan tersebut, maka tujuan penelitian ini adalah menganalisis status trofik muara sungai Jelitik berdasarkan trophic state index (TSI) dan menganalisis status cemaran berdasarkan metode storet dan CCME WQI. Enam lokasi penelitian ditentukan secara purposive sampling, sedangkan pengukuran parameter fisika, kimia dan biologi dilakukan pada bulan April dan Agustus tahun 2021. Berdasarkan index storet, enam lokasi di wilayah muara sungai Jelitik tersebut berstatus masih baik/tercemar ringan, sedangkan berdasarkan CCME WQI dapat dikategorikan baik sampai dengan cukup baik. Lokasi penelitian dapat dikategorikan sebagai perairan yang bersifat oligotrofik berdasarkan analisis TSI. Potensi degradasi kualitas maupun kuantitas wilayah muara sungai Jelitik memerlukan upaya pengelolaan terintegrasi dan strategi yang efektif dan efisien dalam mengatasi permasalahan yang ada.   Jelitik is located in Bangka regency and it categorized as an industrial area based on Regional Regulation, Bangka Regency Number 3 in 2005. The  Jelitik river channel and estuary received high sediment input and it become shallower due to anthropogenic activities in upstream, industrial activities and tin mining activities around the area. The potential for nutrient enrichment and increasing river estuary pollution can come from point sources such as industry or non-point sources from the Jelitik industrial area. Based on these problems, the purpose of this study was to analyze the trophic state of the Jelitik river estuary based on the trophic state index (TSI) and analyze the contamination status based on the Storet index method and CCME WQI. Six locations were determined by purposive sampling, while physical, chemical and biological parameters were analyzed in April and August 2021. Based on the location index, the six locations in the Jelitik river estuary area were still good/lightly polluted, while based on the CCME WQI, it was classified as good to fair. The research location can be categorized as oligotrophic based on TSI. The potential of quality and quantity degradation of the Jelitik estuary area requires an integrated effort and an effective and efficient strategy in overcoming the existing problems. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/42097 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/65936 2025-10-03T03:26:09Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc Setiyawan, Khoirudin Anton Depison, Depison Animal Science Faculty, Universitas Jambi http://sinta.ristekbrin.go.id/authors/detail?id=6027017&view=overview http://orcid.org/0000-0001-8344-6822 Heltria, Septy Lisna, Lisna Arfiana, Bs Monica Magwa, Rizky Janatul Kepiting bakau (Scylla serrata) merupakan salah satu sumber daya perikanan penting yang berperan dalam mendukung ekonomi pesisir dan keseimbangan ekosistem mangrove. Pemahaman terhadap hubungan morfometrik seperti lebar karapas dan berat tubuh diperlukan sebagai dasar pengelolaan sumber daya secara berkelanjutan.Penelitian ini bertujuan untuk menganalisis hubungan antara lebar karapas dan berat tubuh kepiting bakau di Desa Sinar Kalimantan Kabupaten Tanjung Jabung Timur. Metode penelitian yang digunakan adalah metode deskriptif kuantitatif, jumlah sampel sebanyak 127 ekor kepiting dikumpulkan dari dua lokasi, yaitu, kawasan mangrove dan kawasan muara Desa Sinar Kalimantan. Penangkapan kepiting bakau menggunakan alat tangkap bubu lipat, masing masing lokasi menggunakan sebanyak 38 alat tangkap bubu dengan 16 kali pengulangan. Data dianalisis secara deskriptif menggunakan analisis hubungan lebar dan berat, faktor kondisi, Sex ratio dan ukuran layak tangkap. Hasil analisis hubungan lebar karapas dan berat kepiting bakau menunjukkan  Nilai koefisien pertumbuhan (b) masing-masing sebesar 1,74 dan 2,74, menunjukkan pola pertumbuhan allometrik negatif, di mana pertambahan lebar karapas tidak sebanding dengan berat tubuh.Faktor kondisi berkisar antara 0–1, menunjukkan status fisiologis dan kesehatan kepiting yang cenderung kurang optimal. Hasil anlisis Sex ratio dikawasan mangrove menunjukan perbandingan (1:1,39) yang didominasi kepiting betina dan dikawasan muara perbandingan (1:0,78) yang didominasi kepiting jantan. Persentase ukuran  kepiting bakau yang layak tangkap di Desa Sinar Kalimantan, Kabupaten Tanjung Jabung Timur lebih tinggi daripada yang tidak layak tangkap.  Hasil penelitian menunjukan Hubungan antara lebar karapas dan berat tubuh kepiting bakau bersifat allometrik negatif di kedua lokasi. Kawasan mangrove didominasi oleh kepiting betina, sedangkan kawasan muara oleh kepiting jantan. Ukuran kepiting di kedua lokasi umumnya telah memenuhi kriteria layak tangkap. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/65936 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15293 2020-04-17T19:26:11Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc PENGARUH PENAMBAHAN PGPR (Plant Growth Promoting Rhizobacteria) dan BUAH NANAS(Ananas comosus) TERHADAP SPESIFIKASI PUPUK ORGANIK CAIR RUMPUT LAUT Euchema cottonii (Effect of Adding PGPR (Plant Growth Promoting Rhizobacteria) and Pineapple (Ananas comosus) for Specifications of Organic Liquid Fertilizer Euchema cottonii) Indriyanti, Indriyanti Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Dewi, Eko Nurcahya Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Susanto, Eko Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Euchema cottonii; Pupuk Oganik Cair; PGPR; Nanas   Euchema cottonii mengandung unsur mikro dan makro nutrien, serta zat pengatur tumbuh tanaman seperti auksin, giberelin, sitokinin, dan etilen sehingga sangat berpotensi sebagai pupuk organik penyubur tanaman. Penambahan buah nanas berfungsi sebagai sumber C, P, dan K pada ekstrak pupuk rumput laut cair. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan bioaktivator PGPR (Plant Growth Promoting Rhizobacteria)dan buah nanas terhadap kandungan C-organik, nitrogen, fosfor, kalium, pH, suhu, bakteri patogen, dan organoleptik warna. Material yang digunakan dalam penelitian ini adalah E. cottonii, PGPR, dan buah nanas.. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 ulangan yaitu perlakuan kontrol (A), penambahan PGPR dan  buah nanas 40% (B), penambahan PGPR dan buah nanas 50% (C), dan penambahan PGPR dan  buah nanas 60% (C). Parameter yang diukur adalah C-organik, nitrogen, fosfor, kalium, pH, suhu, bakteri pathogen, dan oraganoleptik warna. Data parametrik dianalisa dengan uji ANOVA. Hasil penelitian menunjukkan bahwa penambahan buah nanas yang berbeda memberikan pengaruh nyata terhadap kadar C-organik, fosfor, dan kalium (p<0,05), sedangkan nilai nitrogen tidak berbeda nyata. Perlakuan penambahan nanas 50% akan meningkatkan kandungan nitrogen dua kali lebih besar dari pada kontrol. Perlakuan terbaik yaitu pada penambahan PGPR dan nanas 60% dengan kandungan C, P, K berturut-turut adalah 7,02%, 3,44%, dan 3,41%.  Euchema cottoniicontains elements ofmicroandmacronutrients, andplantgrowth regulatorssuch asauxin, gibberellin, cytokinin, andethyleneso ithasgreat potentialas anorganicfertilizer forfertilisingcrops. Addition A. comosusserves asa source of C, P, and Kin theliquid organic fertilizer. This study aimedtodetermine the effect ofbio-activatorPGPRandA. comosus on the content ofC-organic, nitrogen, phosphorus, potassium, pH, temperature, pathogens, and color. The materialusedin this studywereE.cottonii, PGPR, andA. comosus.This research wasexperimentallaboratoriesusing completely randomized designwith 4 differenttreatments and 3replications, namely control (A), addition ofPGPR and A. comosus 40%(B), addition of PGPR  and A. comosus 50% (C), and addition of PGPR and A. comosus 60% (D). Parametersmeasured wereC-organic, nitrogen, phosphorus, potassium, pH, temperature, pathogens, and color organoleptic. Parametric datawere analyzed byANOVA. The results showedthat theaddition ofPGPRandA.comosussignificantly affect(P<0.05) to thelevels ofc-organic, phosphoruslevels, potassium levels, but not nitrogen levels. Addition of pineapple 50% will increase the nitrogen content twice higher than control. The best treatment is addition of PGPR and pineapple 60% with the content of C, P, K respectively 7.02%, 3.44% and 3.41%.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15293 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22952 2019-11-07T15:05:48Z saintek:RSA

nmb a2200000Iu 4500 "190717 2019 eng " 2549-0885 1858-4748 dc PENGARUH ELECTRO SHIELD SYSTEM (EES) PADA BOTTOM SET GILL NET TERHADAP HASIL TANGKAPAN ELASMOBRANCHII DI PERAIRAN TANJUNG PANDAN, KEPULAUAN BANGKA BELITUNG Fitri, Aristi Dian Purnama Program Studi Perikanan Tangkap Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Boesono, Herry Program Studi Perikanan Tangkap Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Prihantoko, Kukuh Eko Program Studi Perikanan Tangkap Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Gautama, Dwi Yoga World Wildlife Fund for Nature Foundation, Indonesia Dewi, Desca E Program Studi Perikanan Tangkap Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Adiyanto, Fajar Program Studi Perikanan Tangkap Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro ESS (Electro Shield System); Elasmobranch; Frekuensi; Perairan Tanjung Pandan Electro Shield System  (ESS) adalah suatu perangkat elektronik sebagai alat bantu untuk mencegah tertangkapnya biota lasmobranchii yang umumnya sebagai bycatch pada saat operasi penangkapan bottom set gill net. Penelitian ini bertujuan untuk menganalisis pengaruh frekuensi ESS (Electro Shield System) sebesar 55 Hz dan 100 Hz selama operasi penangkapan pada jaring insang dasar (bottom set Gill net) terhadap biota elasmobranch. Metode penelitian adalah eksperimental fishing, dilakukan di perairan Tanjung Pandan, Bangka. Kepulauan Belitung di Indonesia dari bulan Maret hingga Mei, 2017. Variabel perlakuan adalah operasi penangkapan bottom set gill net yang dipasang alat ESS frekuensi ESS 55 Hz dan 100 Hz dibandingkan dengan bottom set gill net tanpa dipasang ESS (kontrol) untuk mengetahui hasil tangkapan elasmobranchii. Tangkapan Elasmobranch pada bottom set Gill net dengan ESS 55 Hz lebih rendah jumlahnya (5,26%) dibandingkan dengan tangkapan dengan ESS 100 Hz (6,21%) dan tanpa ESS (7,08%). Analisis statistik ANOVA (tanda 0,05) menunjukkan perbedaan yang signifikan antara bottom set gill net dengan dan tanpa ESS 55 Hz dan 100 Hz. Hal ini menunjukkan bahwa ESS dengan frekuensi 55 Hz dapat dideteksi oleh biota elasmobranch dalam organ ampullae lorenzini, sehingga tidak terperangkap pada bottom set Gill net. Electro Shield System  (ESS) was an electronic device as a tool to prevent the capture of common lasmobranchii biota as a by-catch during a bottom set gill net capture operation.The aim of research was analysed the effect of ESS (Electro Shield System ) frequency of 55 Hz and 100 Hz during the capture operation on bottom set Gill net against elasmobranch biota. The research method was an experimental fishing, conducted in the Tanjung Pandan waters of the Bangka. Belitung Islands in Indonesia from March to May, 2017. The treatment variable was the bottom set gill net capture operation that is installed ESS 55 Hz and 100 Hz frequency compared to without ESS (control) to find out the elasmobranch catch. Elasmobranch catches on set bottom set Gill nets with ESS 55 Hz were lower (5.26%) compared to catches with 100 Hz (7.08%) and without ESS (7.08 %). Statistical analysis of ANOVA (sign 0.05) shows a significant difference between bottom set Gill nets with and without ESS 55 Hz and 100 Hz. This indicates that an Electro Shield System  with a frequency of 55 Hz can be detected by elasmobranch biota in the organs of ampullae lorenzini, so as not to be caught on the bottom set Gill net. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22952 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6833 2025-04-26T12:52:51Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc Analysis of Ex Disposal Area Land Use for Fisheries Activity (Ponds) in Segara Anakan regency Based on Geography Information System Ain, Churun Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Dredging  Segara  Anakan  lagoon  that  have  been  implemented  in  1997  -     2005,  has  given  rise  to  the consequences of new land from the dredging is often referred as Ex-Disposal Area. Along with the increasing socio-economic problems, this land is considered as a strategic area for use as aquaculture lands. Milk Fish (Chanos chanos) and Crab (Scylla sp) are comodity targets,that wants develop as silvofisheries program. This study aimed to determine the location and potential areas as aquaculture lands based on a suitability analysis.  The research method was descriptive case study, in which a purposive sampling technique was applied to collect the samples,  including 2 sampling periods (rainy and dry season). The location in this research was Ex Disposal Area (EDA), consist of Klaces, Panikel  and  Ujunggagak  district. Research  variabel  were  soil  quality,  water quality  and  EDA’s  environment parameters. Spatial analysis data used GIS, that was proccessed by ER Mapper 7.0 and ArcGIS 9.3 software. The concept of suitability level by scoring method combining values and weight matrix. Result of research yielded that potential land for fisheries activity (brakish water ponds)  were : moderately suitable class (S2) that was 5.309,05 m2, at  Panikel and  Ujunggagak districs; marginally suitable class (S3) is 77.325.77 m2, not suitable for present time class (N1) that was 1.365.955,67 m2, and permanently unsuitable class (N2) is 7.583.809,51 m2. Coverage area of class S3,N1 and N2 included Panikel, Klaces and Ujunggagak.   Keywords : Land Use, Ex Disposal Area (EDA), Ponds, Geography Information System (GIS) Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6833 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21337 2018-12-04T14:49:37Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/75419 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Rahaningmas, Julius Mose Jurusan Rekayasa Perikanan dan Kelautan, Politeknik Perikanan Negeri Tual, Jalan Langgur-Sathean, Maluku Tenggara 97611, Indonesia https://orcid.org/0009-0003-6703-8353 Salah satu jenis ikan komoditas perikanan penting di perairan Maluku adalah ikan Bijinangka. Namun, informasi mengenai teknik penangkapan yang efektif untuk jenis ikan ini, khususnya jenis umpan dan alat pancing masih terbatas. Penelitian ini bertujuan untuk mengevaluasi efektivitas umpan cacing lur atau tumel (Dendronereis pinnaticirris) dan ikan teri (Engraulis sp), konstruksi mata pancing yang paling efektif serta menentukan waktu penangkapan terbaik untuk ikan Bijinangka. Penelitian ini menggunakan metode observasi langsung yaitu metode pengoperasian alat penangkapan ikan secara langsung dan uji-t (t-test) digunakan untuk uji beda rata-rata hasil tangkapan ikan Bijinangka. Umpan cacing lur atau tumel menangkap ikan Bijinangka sebanyak 273 ekor (67%) dan umpan ikan teri sebanyak 137 ekor atau 33%, dengan perbedaan yang signifikan secara statistik (t = 16,076; p < 0,05). Waktu penangkapan pada pagi hari pukul 07.00 WIT hingga pukul 10.00 WIT menghasilkan tangkapan yang jauh lebih tinggi 314 ekor atau 77% dibandingkan sore hari pukul 14.00 - 17.00 WIT sebanyak 96 ekor ikan (23%), dengan perbedaan yang signifikan (t = 28,062; p < 0,05). Penggunaan mata pancing dengan kili-kili menghasilkan tangkapan yang lebih banyak 287 ekor (70%) daripada mata pancing tanpa kili-kili 123 ekor atau 30%, dengan perbedaan yang signifikan (t = 18,976; p < 0,05). Penelitian ini menunjukkan bahwa umpan cacing lur atau tumel, waktu penangkapan pagi hari, dan penggunaan mata pancing dengan kili-kili adalah strategi yang paling efektif untuk penangkapan ikan Bijinangka. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/75419 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/20534 2020-04-17T19:28:02Z saintek:RSA

nmb a2200000Iu 4500 "181002 2018 eng " 2549-0885 1858-4748 dc PENGARUH PENAMBAHAN FUNEL PADA ALAT TANGKAP BUBU TERHADAP HASIL TANGKAPAN RAJUNGAN (Portugus pelagicus) DI PERAIRAN REMBANG, JAWA TENGAH (The Effect of Funnel Addition on Trap Toward catch of Blue Swimming Crab in Rembang Sea waters) Jayanto, Bogi Budi Program Studi Pemanfaatan Sumberdaya Perikanan, Departemen Perikanan Tangkap Fakulatas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Prihantoko, Kukuh Eko Program Studi Pemanfaatan Sumberdaya Perikanan, Departemen Perikanan Tangkap Fakulatas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Triarso, Imam Program Studi Pemanfaatan Sumberdaya Perikanan, Departemen Perikanan Tangkap Fakulatas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kurohman, Faik Program Studi Pemanfaatan Sumberdaya Perikanan, Departemen Perikanan Tangkap Fakulatas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Bubu Payung; Funnel; Rajungan Bubu (Trap) merupakan alat tangkap yang dioperasikan secara pasif yang termasuk alat tangkap ramah lingkungan, dengan keunggulan hasil tangkapan masih dalam kondisi hidup dan segar. Target penangkapan dari alat tangkap Bubu salah satunya adalah Rajungan (Portunus pelagicus), yang merupakan komoditas ekonomis penting perikanan. Indikasi produktivitas suatu alat tangkap adalah apabila hasil tangkapan didominasi dengan target tangkapan dengan nilai efektivitas yang tinggi. Modifikasi bentuk dan jumlah Funnel (pintu masuk) pada Bubu merupakan salah satu cara memperbesar peluang target  masuk kedalamnya. Penelitian mengenai penambahan jumlah funnel bertujuan untuk meningkatkan peluang Rajungan tertangkap. Rancang bangun funnel sebanyak 6 buah (Bubu Payung) akan memperbesar peluang Rajungan sebagai target tangkapan tertangkap dibandingkan bubu dengan jumlah  funnel 2 buah. Melalui metode penelitian experimental fishing di perairan Rembang, Jawa Tengah didapatkan hasil bahwa Bubu dengan funnel sebanyak 6 buah (Bubu payung) menghasilkan hasil tangkapan lebih banyak dibandingkan dengan Bubu dengan funnel sebanyak 2 buah.   Bubu was a passive fishing gear and kind of responsible fishing gear categories. Catch on fresh condition is one of benefit from this gear. Rajungan (Portunus pelagicus) is one of important fisheries resources and valuable. One of the productivity indicator on fishing gear is if catch dominated by targetted of fish and effectiveness value is high. Trap modification on shape and amount funnel is one of techniques to increase opportunity fish that get caught. The aim of this study is to increase opportuniy caught of Rajungan with different funnel amount. Bubu with six funnel will enlarge opportunity of Rajungan that caught than of two funnel. By experimental fishing in Rembang sea water, Province of  Central Java, the result of this study shown that bubu with six funnel get more larged rajungan catch than bubu with two funnel. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/20534 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23160 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc POTENSI DAN TINGKAT PEMANFAATAN SUMBERDAYA IKAN MENGGUNAKAN METODE SURLPUS PRODUKSI DIPERAIRAN KABUPATEN BANGKA TENGAH (Potential And Level Utilization Of Fish Resources Use The Production Surplus Method In The Waters Of Center Bangka Regency) Kurniawan, Kurniawan Universitas Bangka Belitung Sebayang, Monischa br Universitas Bangka Belitung Utami, Eva Universitas Bangka Belitung Potensi Lestari; Pemanfaatan; Sumberdaya Ikan; Kabupaten Bangka Tengah Informasi tentang pendugaan potensi dan tingkat pemanfaatan sumberdaya ikan mutlak diperlukan dalam pengelolaan sumberdaya perikanan berkelanjutan di Kabupeten Bangka Tengah. Penelitian ini  bertujuan untuk menganalisis potensi lestari, upaya optimum dan tingkat pemanfaatan sumberdaya ikan.  Penelitian dilakukan pada bulan Agustus sampai dengan Desember 2018. Data primer diambil menggunakan metode kuesioner dengan mengambil jumlah responden sebanyak 98 orang dengan menggunakan rumus slovin. Data sekunder diambil dari Dinas Perikanan Bangka Tengah dan Dinas Kelautan Perikanan Provinsi Kepulauan Bangka Belitung. Metode penelitian yang digunakan adalah metode deskriptif dengan analisis kuantitatif dengan pendekatan model surplus produksi dengan metode Schaefer. Hasil penelitian menunjukan nilai MSY ikan pelagis kecil  sebesar 6.798,2 ton/tahun,  pelagis  besar (5.682,34 ton/tahun) dan  dan demersal (7.296,288 ton/tahun). Nila upaya penangkapan ikan pelagis kecil sebesar 135.738  trip/tahun, pelagis besar (141.895 trip/tahun), demersal (49.720)  trip/tahun. Rata- rata tingkat pemanfaatan tahun 2012-2016, ikan pelagis kecil sebesar 89,561 %, ikan pelagis besar sebesar 63,469 % dan ikan demersal sebesar 102,417%. Data tersebut menunjukan berarti tingkat pemanfaatan sumberdaya sudah pada titik optimal.   Information on estimating the potential and level of utilization of fish resources is absolutely necessary in the management of sustainable fisheries resources in Central Bangka Regency. This study aims to analyze the sustainable potential, optimum effort and level of utilization of fish resources. The study was conducted in August to December 2018. Primary data were taken using a questionnaire method with 98 respondents obtained using the Slovin formula. Secondary data were taken from the Central Bangka Fisheries Service and the Bangka Belitung Islands Province Fisheries Marine Service. The research method used is descriptive method with quantitative analysis through a surplus production model approach with the Schaefer method. The results showed the MSY value of small pelagic fish of 6,798.2 tons / year, large pelagic fish (5,682.34 tons / year) and demersal (7,296,288 tons / year). The value of small pelagic fishing effort is 135,738 trip / year, large pelagic (141,895 trip / year), demersal (49,720) trip / year. The average level of utilization in 2012-2016, small pelagic fish was 89.561%, large pelagic fish was 63.469% and demersal fish was 102.417%. The data shows the level of utilization of small and demersal pelagic fish is at an optimal point, while large pelagic fish are still below the optimal point. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23160 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6865 2025-04-26T12:43:23Z saintek:RSA

nmb a2200000Iu 4500 "080822 2008 eng " 2549-0885 1858-4748 dc MUTU DAN DAYA SIMPAN FILLET DENDENG IKAN NILA MERAH YANG DIKEMAS HAMPA UDARA DENGAN VACUUM SEALER SKALA RUMAH TANGGA Dewi, Eko Nurcahya Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Salah satu cara pengolahan ikan air tawar yang dapat dikembangkan adalah pembuatan dendeng ikan dalam bentuk fillet. Produk dendeng ikan yang diolah secara tradisional biasanya tidak dikemas atau dikemas dalam kantong plastik polyethylene, sehingga mudah terkontaminasi oleh mikroorganisme atau  kelembaban   udara sekitarnya. Penelitian ini bertujuan untuk mengetahui ada tidaknya pengaruh pengemasan dendeng fillet ikan Nila Merah , yang dikemas dengan kantong plastik polyethylene dan  dikemas dengan vacuum sealer skala rumah tangga terhadap mutu produk. Produk disimpan   pada  suhu kamar.Pengujian mutu produk meliputi kadar air,kadar TVBN,jumlah bakteri (TPC) dan nilai kesukaan panelis terhadap produk. Metode penelitian menggunakan percobaan laboratoris, berdasarkan pola faktorial (2 x 2) dengan rancangan kelompok. Masing- masing perlakuan diulang 3 kali. Data dianalisa dengan ANOVA dan data kesukaan diuji dengan uji Kruskal – Wallis. Hasil penelitian  menunjukkan bahwa perlakuan pengemasan dendeng fillet ikan Nila Merah hampa udara dengan  vacuum sealer skala rumah tangga, setelah penyimpanan pada suhu kamar selama 30 hari menyebabkan kadar air, kadar TVBN dan jumlah koloni bakteri produk lebih rendah secara nyata (P< 0,05) bila dibandingkan  dengan produk yang dikemas dengan kantong plastik polyethylene.Kedua cara pengemasan tersebut tidak memberikan perbedaan yang nyata terhadap nilai kesukaan produk baik dari segi warna, bau,rasa dan konsistensi. Penyimpanan produk dendeng selama 30 hari berpengaruh nyata terhadap penurunan kadar air produk yang dikemas dengan kemasan hampa udara,tetapi tidak berpengaruh nyata (P > 0.05) terhadap kadar TVBN, namun  masih berpengaruh nyata terhadap kenaikan jumlah koloni bakteri.   Kata Kunci : Ikan Nila Merah,dendeng fillet ikan, pengemasan, mutu Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6865 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/51446 2025-01-08T02:23:14Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/24010 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200804 2020 eng " 2549-0885 1858-4748 dc PENGGUNAAN HIGH POWER LED (HPL) PADA PERIKANAN BAGAN APUNG DI SELAT MADURA (The Use Of High Power LED (HPL) Lamp On The Lift Net Fishing In The Madura Strait) Umam, Hairul Departemen Pemanfaatan Sumberdaya Perikanan, Institut Pertanian Bogor Puspito, Gondo Departemen Pemanfaatan Sumberdaya Perikanan, Institut Pertanian Bogor Mawardi, Wazir Departemen Pemanfaatan Sumberdaya Perikanan, Institut Pertanian Bogor : Cahaya; hemat; komposisi; lingkungan; tinggi. Cahaya merupakan alat bantu utama pada perikanan bagan apung dan berfungsi sebagai pengumpul ikan. Sumber cahayanya sangat beragam, mulai dari petromaks, lampu pijar, lampu neon dan mercury. Nelayan terpaksa mulai meninggalkan pengunaan keempat lampu karena bahan bakar sebagai sumber energinya sangat mahal. Jenis sumber cahaya yang sangat berpeluang besar dikembangkan adalah lampu LED, karena lebih hemat energi, ramah lingkungan dan tahan lama. Uji coba lampu LED jenis HPL pernah dilakukan pada perikanan bagan tancap. Hasilnya membuktikan bahwa bagan yang mengoperasikan lampu HPL mendapatkan berat tangkapan 2 kali lebih tinggi dibandingkan dengan bagan nelayan yang menggunakan lampu neon. Penelitian dilakukan untuk memperbaiki konstruksi penelitian sebelumnya agar pancaran cahayanya semakin luas. Selanjutnya, berat hasil tangkapan bagan apung yang mengoperasikan lampu berbeda dibandingkan. Tujuannya adalah untuk membuktikan bahwa penggunaan lampu konstruksi baru dapat meningkatkan berat hasil tangkapan bagan, tanpa mengurangi komposisi jenisnya. Hasilnya adalah berat total hasil tangkapan bagan yang mengoperasikan lampu dengan konstruksi baru mencapai 1494 kg yang didominasi oleh hasil tangkapan utama seberat 847 kg dan sampingan 647 kg, atau lebih tinggi dibandingkan hasil tangkapan total lampu konstruksi lama 788 kg  (433 kg; 355 kg). Komposisi jenis hasil tangkapan kedua lampu terdiri atas delapan jenis organisme yang sama, yaitu teri putih (Stolephorus buccaneeri), teri jengki, teri hitam, teri paku (Stolephorus indicus), cumi-cumi (Loligo sp.), pepetek (Leiognathus sp.), selar kuning (Selaroides leptolepis) dan tembang (Sardinella fimbriata).     Light is the main fish aggregat device on the lift net fishing as fish collector. The source of light is various, i.e. petromaks, fluorescent lamp, neon lamp, and mercury. The fisherman is forced to abandon the use of the lamps because the fuel cost is high. The kind of light sources that have big opportunity to be developed is LED because it is lower energy, enviromentally friendly, and durable. The trials of HPL lamp had been carried out on the lift net fishing. The result showed that the weight of fish catches on the lift net with HPL lamp was higher twice than lift net with neon lamp. The research handled to fix the contruction on the previous research was carried out to make the emission of the light widen. Then, the weight of fish catches on the lift net with different lamp could be compared. This research aimed to prove the use of lamp with new contruction could increase the weight of fish catches on the lift net without decreasing the species composition. The result showed the weight of fish catches on the lift net with new contruction was 1494 kg that was dominated by main catch 847 kg and by catch 647 kg or more than the total weight of the HPL-S lamp 788 kg (433 kg; 355 kg). the species composition of both of the lamp were 8 species, i.e, white ancovy, jengki ancovy, black ancovy, paku anchovy, squid, ponyfish, yellowtripe scad, fringescale sardinella. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24010 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/24010/67226 Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8109 2015-06-29T14:48:03Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc UJI COBA BUDIDAYA NILA LARASATI DI KARAMBA JARING APUNG DENGAN PADAT TEBAR BERBEDA (Test of Tilapia Culture in Net Cage with Different Stocking Density) Rejeki, Sri Program Studi Budidaya Perairan FPIK-UNDIP Semarang Hastuti, Sri Program Studi Budidaya Perairan FPIK-UNDIP Semarang Elfitasari, Tita Program Studi Budidaya Perairan FPIK-UNDIP Semarang Pembesaran ikan nila secara komersial menggunakan jaring apung masih sedikit, sedangkan potensi kegiatan budidaya di perairan tawar umum peluangnya masih besar. Tingkat permintaan konsumen ikan nila cenderung mengalami kenaikan setiap tahun seiring dengan pertambahan jumlah penduduk. Wadah pemeliharaan di karamba jaring apung dapat memelihara ikan dengan kepadatan yang tinggi untuk meningkatkan produksi ikan. Karamba jaring apung juga memiliki kualitas air yang stabil sehingga produksi dapat lebih tinggi. Informasi teknis pembesaran ikan nila pada padat tebar yang tepat di karamba jaring apung diperlukan sehingga produksi ikan dapat ditingkatkan. Penelitian ini bertujuan untuk mengetahui pengaruh kepadatan terhadap pertumbuhan dan kelulushidupan serta untuk mengetahui kepadatan ikan nila yang memberikan kelulus hidupan dan pertumbuhan terbaik. Metode penelitian dalam penelitian ini menggunakan metode eksperimental dengan rancangan acak lengkap (RAL) dengan mengunakan 3 perlakuan dan 3 kali ulangan. Adapun perlakuan pada penelitian ini adalah sebagai berikut: perlakuan A: Benih ikan Nila dengan padat tebar 67 ekor m-3; perlakuan B: padat tebar 130 ekor m-3 dan perlakuan C: padat tebar 173 ekor m-3. Ikan nila larasati yang dibudidayakan di karamba jaring apung (KJA) dengan padat penebaran 67; 130 dan 173 ekor m-3 menghasilkan bobot, panjang dan pertumbuhan bobot, pertumbuhan panjang, kelangsungan hidup serta konsumsi dan konversi pakan yang berbeda. Hingga kepadatan ikan 130 ekor m-3 nilai variabel biologis tersebut diatas masih baik dan  nilainya mulai terganggu jika kepadatan tebar ikan mencapai 173 ekor m-3. Kualitas air masih dalam kisaran layak. Kata kunci : Nila Larasati, Karamba Jaring Apung (KJA)   Commercial Tilapia grow-out by using net cage is limited, while there is still a huge potential to culture freshwater fish. The demand of Tilapia is rising each year following the growth of  world population. Tilapia culture in net cage can hold a higher density. It also has a more stable water quality to enhance production. Information on the optimum density of Tilapia culture in net cage is needed to obtain maximum fish production. This research aims to identify the influence of different density towards the growth and survival rate of Tilapia in net cage and also to identify the density that gives the optimum survival rate and growth. Research method used in this research was experimental design with 3 treatments and 3 replication.. The treatments are: treatment A; Tilapia seed with density of 67 fish seed m-3; treatment B: density of 130 fish seed m-3and treatment C: 173 fish seed m-3 Result shows that Tilapia culture with different density influence growth and survival rate. Until density of 130 m-3, biological variable is in an acceptable range but begin to show a decrease at density of 173 m-3. Water quality is still in normal range. Key words: Tilapia, net cage Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8109 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/370 2020-12-09T16:39:48Z saintek:RSA

nmb a2200000Iu 4500 "110719 2011 eng " 2549-0885 1858-4748 dc ANALISIS DAMPAK PENGGANDA SEKTOR PERIKANAN DENGAN SEKTOR YANG LAIN PADA PEREKONOMIAN JAWA TENGAH Dault, Adhyaksa Pasacasarjana MSDPI UNDIP Khohar, Abdul Staf pengajar PS. PSP, Jurusan Perikanan FPIK UNDIP Suherman, Agus staf pengajar PS PSP, Jurusan Perikanan, FPIK UNDIP ABSTRAK Penelitian ini bertujuan untuk mengetahui dampak pengganda (multiplier effect) sektor perikanan terhadap perekonomian Jawa Tengah. Metode penelitian menggunakan studi kasus dan dilanjutkan dengan analisis deskriptif. Data yang dianalisis adalah Tabel Input Output Transaksi Domestik atas Dasar Harga Produsen Klasifikasi 19 Sektor Propinsi Jawa Tengah Tahun 2007. Analisis data dilakukan dengan menggunakan matematika ekonomi dan model input output yang dibantu dengan menggunakan program Excel dan GRIMP 7.1. Hasil penelitian menunjukkan bahwa dampak pengganda tipe I maupun tipe II sektor perikanan masih kecil, sehingga belum dapat diandalkan untuk meningkatkan pertumbuhan output, pendapatan, dan penciptaan lapangan kerja. Kata Kunci :Dampak Pengganda, Perekonomian, Jawa Tengah ABSTRACT The research objective was to find out multiplier effects of the fishery sector on the Central Java monetary. A case study method was applied followed by descriptive analyses. The data of Domestic Transaction Input Output Table based on Classification 19 Producers’ Price Sector of Central Java Province Year 2007 was used. The data were analyzed using economic mathematics and input output modeling which were supported by using Excel Program and GRIMP 7.1. The results showed that type I and type II multiplier effects of fishery sector multiplier effects were still small, therefore, could not be used for increasing the output growth, income, and job opportunities. Key words: Multiplier effects, monetary, Central Java Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/370 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/46962 2025-04-15T07:52:27Z saintek:RSA

nmb a2200000Iu 4500 "221225 2022 eng " 2549-0885 1858-4748 dc Purnami, Ni Luh Putu Eka Yuni Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana, Jalan P.B. Sudirman, Dangin Puri Klod, Kec. Denpasar Bar., Kota Denpasar, Bali 80234 Sudaryanto, Fransiscus Xaverius Ginantra, I Ketut Perairan Selat Bali memiliki potensi sumberdaya yang besar terutamanya ikan pelagis kecil. Besarnya potensi tersebut telah dimanfaatkan begitu lama dan pemanfaatan sumberdaya perikanannya belum dikelola dengan baik. Tujuan dari penelitian ini adalah untuk mengkaji penerapan dari masing-masing domain EAFM (Ecosystem Approach to Fisheries Management) perikanan lemuru di Selat Bali yang kemudian dapat digunakan untuk merumuskan rekomendasi perikanan menunjang kegiatan penangkapan lemuru yang berkelanjutan. Penelitian ini dilaksanakan pada bulan Agustus 2021 sampai dengan Januari 2022. Metode penelitian yang digunakan adalah survey, wawancara, dan studi literatur. Data dianalisis menggunakan teknik model bendera. Performa perikanan lemuru di Selat Bali menunjukkan terdapat empat pengelompokan berdasarkan nilai komposit, yaitu domain dengan kualifikasi kurang adalah Domain Sumberdaya Ikan, domain dengan kualifikasi sedang adalah Domain Habitat dan Ekosistem, domain dengan kualifikasi baik adalah Domain Teknik Penangkapan Ikan, Domain Sosial, dan domain dengan kualifikasi baik sekali adalah Domain Ekonomi, dan Domain Kelembagaan. Secara keseluruhan, total nilai komposit yang diperoleh sebesar 66,33 yang berarti aspek-aspek perikanan lemuru di Selat Bali tergolong dalam kategori baik dalam penerapan prinsip-prinsip EAFM di wilayahnya.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-02-10 02:56:07 https://ejournal.undip.ac.id/index.php/saintek/article/view/46962 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 4 (2022): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/46962/148179 Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/35614 2021-04-21T11:21:17Z saintek:RSA

nmb a2200000Iu 4500 "201031 2020 eng " 2549-0885 1858-4748 dc KURNIAWAN, ROY Research Institute for Tuna Fisheries, Denpasar-Bali http://lp2t.kkp.go.id/ Setyadji, Bram Nugroho, Suciadi Catur Wibawa, Teja Arief One of the main targets from small-scale handline tuna fishery is yellowfin tuna (Thunnusalbacares), where most, if not all of its operation depended heavily on the installment of the fish aggregating device (FAD). The objective of the study was to investigate the spatial and temporal distribution of catch and size of yellowfin tuna from FAD-associated handline fishery. The study was conducted from January to December 2018 with main observation location was in Labuhan Lombok fishing port, West Nusa Tenggara. The results showed that the highest catch rate was obtained during April-June, followed by the frequent emergence of large yellowfin tuna (>100 cm FL). On the other hand, January-March was considered as a low season, where most of the catch was dominated by juvenile yellowfin tuna (<50 cmFL). The spatial distribution of yellowfin tuna abundance is closely related to the presence of FADs, where all fishing operations are carried out around FADs. Also, aggregation of fish was more likely influence by temporal variation rather than the quantity of FAD. More abundant yellowfin tuna were found during the east monsoon (April-June) compared to another season where less fish occurred. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/35614 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN ind Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8323 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc The Effectiveness Assessement of Coral Reef Management (Case Study : Marine Conservation Area (MPA) Biawak Island and Area, Indramayu District) Salsabiela, Mutiara Magister Ilmu Lingkungan Program Pascasarjana Universitas Diponegoro Anggoro, Sutrisno Magister Ilmu Lingkungan Program Pascasarjana Universitas Diponegoro Purnaweni, Hartuti Magister Manajemen Sumberdaya Perairan Program Pascasarjana Universitas Diponegoro Utilization of coral reefs by destructive and not environmentally friendly as well as water pollution , making it be in a worrying condition .condition of coral reefs in 2012 on the Biawak Island, 45.4% were in good condition and the remaining 27.3% were in fairly good condition and 27.4% are in poor condition with the risk index of 2.96 to 3.84 (southern part of the Biawak island). Establishment of MPA is one alternative policies management and protection of coral reefs and marine life that live in it, so hope to protect coral reefs and marine environment from adverse impacts.This study aims to assess the effectiveness of the management of coral reefs in MPA Biawak island and it was conducted in November-December 2013. The effectiveness of the management of coral reefs in Biawak island using a scorecard (Coremap-II) which includes the biophysical aspects of coral reef habitat conditions, social-economic and governance.The results showed that the effectiveness of the management of coral reefs in the MPA Biawak island and obtained scores around 139 with a percentage rating of 73.52%, it means less effective management. Keywords : Effectiveness, Management, Coral Reef, MPA Biawak Island Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8323 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2068 2020-12-07T08:07:07Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc The Shelf- life of Seasoned Fish Meat Floss (Abon Ikan) Made from Red Tilapia (Oreochromis niloticus Trewavas)Processed by Different Frying Methods Dewi, Eko Nurcahya Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Semarang Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Semarang Yuaniva, Nuzulia Mahasiswa Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Semarang Seasoned fish meat floss (“abon ikan” ) is a processed fish made from fish meat and traditionally processed by boiling, seasoning and frying. The frying method that is usually used is a deep frying. The unsaturated fatty acids and the oil content in the product cause a rancidity problem during the product is stored at room temperature. The aim of the research is to find out the effect of a deep frying and a pan frying methods application on the seasoned fish meat floss processing using red tilapia and the storage time at room temperature to the rancidity development and the shelf-life of the products based on the rancidity variable analysis (PV, TBA, AASC, Aw values) and the hedonic values of the products. The experimental design used was a completely randomized design with a factorial pattern (2 x 3 ). Based on the chemical analysis results and the hedonic value of the product stored up to 15 days at a room temperature it was found that the product processed by the pan frying method had a better quality and it was not rancid yet. The characteristics of the product were as followed : PV (4.3699 miliequivalent / kg lipid , TBA (3.5215 mg malonaldehyde / kg sample), AASC (0.4727abs unit/g/ml) , Aw(0.47)  whereas the odour and the flavour  value was 7.2 respectively.   Keywords: Seasoned fish meat floss, red tilapia, deep frying, pan frying, quality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2068 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/57479 2025-04-15T07:25:05Z saintek:RSA

nmb a2200000Iu 4500 "231029 2023 eng " 2549-0885 1858-4748 dc EFFECT OF COMBINATION INORGANIC FERTILIZER WITH RICE WASHING WATER ON THE NUTRITIONAL CONTENT OF Spirulina sp. Faustine Elvina Nuryadin, Devi UNTIRTA Ayi Meata, Bhatara UNTIRTA Nurazizatul Hasanah, Afifah UNTIRTA Afina Radityani, Fitri UNTIRTA Putra Suryono, Jundi UNTIRTA Dharmayanti, Wina UNTIRTA Basyair, Bunyamin UNTIRTA Udin, Ato UNTIRTA : Inorganic fertilizer; Rice washing water; Spirulina sp. Fertilizers commonly used in Spirulina sp. are walne, zarrouk, or guillard. However, the use of these fertilizers has several constraints, including the relatively expensive price, and requires quite a lot of nutrient solution composition in its manufacture. This problem is the reason for the search for alternative fertilizers for Spirulina sp. This study intends to provide information regarding the use of a combination of inorganic fertilizers from urea, plant catalyst, and GA with rice washing water as an alternative fertilizer which has a high nutritional content and can be used for Spirulina sp. it is followed by optical detachment analysis, water quality analysis, yield analysis, proximate analysis. The results of the study showed that the combination of inorganic fertilizers with rice washing water had a positive effect on the value of optical density with the fifth day of harvesting culture and proximate analysis of Spirulina sp. with the best treatment at P2 (1% inorganic fertilizer and 3 mL/L rice washing water) with culture water quality values in optimum conditions at a temperature of 29°C, pH 8 and salinity 19 ppt with an average yield of wet biomass, protein, fat, water, ash, and carbohydrates respectively 3.27 ±0.65, 5.42%, 1.62%, 88.54%, 3.22%, and 1.20%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-11-01 05:59:06 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/57479 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 3 (2023): SAINTEK PERIKANAN eng Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/37430 2021-11-30T12:01:20Z saintek:RSA

nmb a2200000Iu 4500 "210414 2021 eng " 2549-0885 1858-4748 dc Sarjito, Sarjito Diponegoro University Nanda, Monica Sulisyaningrum, Sulisyaningrum Haditomo, Alfabetian Harjuno Condro Desrina, Desrina Prayitno, Slamet Budi Kematian ikan nila  yang terjadi karena wabah penyakit  di Kabupaten Magelang mencapai kisaran 40 - 75 % pada bulan Juni – September 2019, mengakibatkan kerugian ekonomi bagi pembudidaya. Penelitian ini bertujuan untuk mengkaji gejala klinis, dan bakteri yang berasosiasi dengan kematian ikan nila tersebut.  Metode studi kasus konfirmatori dengan purposive sampling diaplikasikan. Duapuluh tiga ikan nila sakit panjang 8,87 ± 0,61cm diperoleh dari kolam pembesaran di Desa Keji, Kecamatan Muntilan dan Desa Pabelan, Kecamatan Mungkid, Kabupaten Magelang, sebagai sampel.  Isolasi bakteri dilakukan dengan metode gores pada media TSA dan GSP. Hasil isolasi dari keduapuluh tiga ikan sampel diperoleh 43 isolat bakteri murni. Berdasarkan karakter morfologi, media isolasi, bentuk dan warna dan karakter serta asal koloni, dari 44 isolat bakteri tersebut terseleksi 6 isolat (SN03, SN26,  SN48, SN51 , SN66 dan SN77)  untuk dilakukan uji selanjutnya yaitu uji postulat Koch dan karakterisasi secara biokimia dengan API KIT Vitek 2 Compact.  Gejala klinis yang terdeteksi pada ikan sampel dan ikan uji adalah pergerakan ikan pasif dan berenang di permukaan air, sirip geripis, luka pada tubuh, insang pucat, bercak merah pada tubuh, exopthalmia dan produksi lendir berlebih serta organ dalam yang memucat. Uji postulat Koch diperoleh bahwa keenam isolat bakteri menyebabkan ikan uji sakit dengan mortalitas berkisar antara 46,6 - 96,6%.  Hasil karakterisasi diperoleh bahwa keenam selektif bakteri yang berasosiasi dengan kematian ikan nila di kabupaten Magelang adalah Aeromonas hydrophila (SN 03), Streptococcus agalactiae (SN 26), Aeromonas sobria (SN 48), Pseudomonas putida (SN 51), Pseudomonas aeruginosa (SN 66) dan Aeromonas caviae (SN 77).   Mortality of Tilapia (Oreochromis niloticus) due to disease outbreaks in Magelang Regency reached 40 - 75% from June - November 2019, resulting in economic losses of farmer. This study aims were to determine the clinical symptoms and bacteria associated with tilapia mortality.  A confirmatory case study method with purposive sampling was applied. Twenty-three sick tilapia fish with a length of 8.87 ± 0.61 cm were obtained from grow out  pond in Keji Village, Muntilan District and Pabelan Village, Mungkid District, Magelang District, as samples. Bacteria isolation was carried out by scratch method on TSA and GSP media. The isolation from twenty-three fish samples resulted on 43 bacterial isolates.  Based on morphological characters, isolation media, shape and color as well as sources and character colony of 44 isolates, they were selected into 6 isolates (SN03, SN26, SN48, SN51, SN66 and SN77) for further testing, i.e: the Koch postulate test and biochemical characterization using Vitek 2 Compact. API KIT.  The clinical symptoms detected in the samples and test fish were fish that moved passively and swam on the surface of the water, wrinkled fins, wounds on the body, pale gills, red spots on the body, exopthalmia and excess mucus production and pale internal organs.  The Koch postulate test result showed that the six selected bacterial caused the test fish to be sick with a mortality ranging from 46.6-96.6%. The characterization of the selective bacteria associated with tilapia mortality in Magelang Regency, namely:  SN03, SN26, SN48, SN51, SN66 and SN77 were Aeromonas hydrophila (97%); Streptococcus agalactiae (98%), Aeromonas sobria (96%) Pseudomonas putida (96%); Pseudomonas aeruginosa (96%) and Aeromonas caviae (98%) respectively.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/37430 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9331 2015-10-27T11:29:59Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc PENGARUH PENAMBAHAN MgCO3 DAN ZnCl2 TERHADAP STABILITAS KANDUNGAN PIGMEN KLOROFIL PADA MIKROALGA Spirulina platensis Udiarta, Puguh Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Dewi, Eko Nurcahya Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Romadhon, Romadhon Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang The Effect Addition of Stabilizer MgCO3 and ZnCl2 on The Color Stability of Chlorophyll Pigment Content Microalgae Spirulina platensis     ABSTRAK   Klorofil merupakan salah satu pigmen yang ada pada S. Platensis memiliki warna hijau. Klorofil bersifat sangat labil dan mudah terdegradasi. Penanganan secara kimiawi dapat dilakukan dengan menambahkan zat penstabil seperti MgCO3 dan ZnCl2.  Penelitian ini bertujuan untuk mengetahui pengaruh penambahan MgCO3 dan ZnCl2 sebagai penstabil terhadap stabilitas warna pigmen klorofil dan mengetahui pH terbaik terhadap stabilitas warna pigmen klorofil S. platensis. Materi yang digunakan dalam penelitian ini adalah mikroalga S. platensis bubuk. Penelitian ini dilakukan dengan metode percobaan laboratoris menggunakan rancangan dasar acak lengkap dengan pola percobaan split plot in time. Perlakuan pada penelitian ini adalah tanpa penambahan penstabil (kontrol), ditambahkan 0,1% MgCO3 dan ZnCl2 secara terpisah pada pelarut aseton serta perlakuan kombinasi. Penelitian ini dilakukan 3 kali ulangan dan lama penyimpanan selama 12 hari dengan interval waktu 4 hari. Hasil penelitian menunjukkan bahwa penambahan ZnCl2 menyebabkan laju degradasi yang lebih kecil dari MgCO3, dimana ZnCl2 menghasilkan kandungan klorofil a sebesar 15,41 µg/g pada lama penyimpanan hari ke 0 dan 7,73 µg/g pada lama penyimpanan hari ke 12. Nilai klorofil b sebesar 22,12 µg/g pada lama penyimpanan hari ke 0 dan 10,65 µg/g pada lama penyimpanan hari ke 12. Sedangkan nilai pH penambahan MgCO3 menyebabkan degradasi yang lebih kecil dari ZnCl2, dimana MgCO3 memiliki nilai pH sebesar 7,80 pada lama penyimpanan hari ke 0 dan 6,78 pada lama penyimpanan hari ke 12. Nilai total perubahan warna (ΔE) sebesar 7,06 pada lama penyimpanan hari ke 4 dan 12,96 pada lama penyimpanan hari ke 12.   Kata kunci : MgCO3, ZnCl2, Stabilitas, Klorofil, S. platensis   Chlorophyll is a green pigment in Spirulina platensis. Chlorophyll is extremely labile and easily degraded.Chemical handling can be done by adding a stabilizing agents such as MgCO3 and ZnCl2. This study was aimed to determine the addition of MgCO3 and ZnCl2 as a stabilizer to the chlorophyll pigments stability and determine the best pH chlorophyll pigments stability in S. platensis. The material used in this study was S.platensis powder.This research was conducted with a laboratory experiment using a completely basic randomized design with split plot in time patterns test. Treatment on this research were without the addition of stabilizers (control), adding 0,1% MgCO3 and 0,1% ZnCl2 separately on the solvent acetone and combinations (MgCO3 and ZnCl2). Each treatment was repeated in triplicate for 12 days of storage with intervals 4 days for analysis. The results showed that the addition of  ZnCl2 affect to slower degradation of chlorophyll than that one. ZnCl2 addition produces chlorophyll 15,41 µg/g at 0 day of storage and 7,73 µg/g on the 12 days of storage. However, the value of chlorophyll b was 22,12 µg/g at 0 day of storage and 10,65 µg/g at 12 days of storage. Meanwhile the pH value of MgCO3 addition showed slower degradation than ZnCl2,which pH value of MgCO3 was 7,80 on 0 day of storage and 6,78 at 12 days of storage. The value of the total color change (ΔE) was 7,06 on the 4th day of storage and 12,96 on day 12th of storage. Keywords : MgCO3, ZnCl2, Stability, Chlorophyll, S. platensis Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9331 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2780 2012-03-28T14:17:34Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Design of Plastic Wall on Lobster Trap Puspito, Gondo Staf Pengajar pada Bagian Teknologi Alat Penangkapan Ikan Departemen Pemanfaatan Sumberdaya Perikanan, FPIK – IPB Experiment was aimed to obtain a design of lobster trap wall. The trap was constructed by plastic. Design of wall consisted of standard gap, horizontal gap, vertical gap, and rectangular gap. From those walls, it was determined the wall that was easily crawled by lobster. There were 3 groups of lobster based on body weight and carapace length, i.e. group A (10.5 cm; 10 g), group B (15.5 cm; 70 g), and group C (17 cm; 100 g). The experiment tried to find out the wall color and lobster bait first. From the experiment, lobster preferred to choose crab and red wall. While, the wall design of vertical gap was easier crawled by lobster than those of three others.   Keywords : Lobster trap wall, plastic, standard gap, horizontal gap, vertical gap, and rectangular gap. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 https://ejournal.undip.ac.id/index.php/saintek/article/view/2780 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/52669 2025-04-15T08:29:33Z saintek:RSA

nmb a2200000Iu 4500 "240805 2024 eng " 2549-0885 1858-4748 dc Ekasari, Julie Banin, Muhammad Ilham Labulal Fauzi, Ichsan Achmad Vinasyiam, Apriana Departemen Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Institut Pertanian Bogor Manajemen pemberian pakan melalui kombinasi pemberian pakan protein tinggi dan pakan protein rendah diduga dapat menekan biaya produksi pada usaha budidaya pembesaran ikan. Penelitian ini bertujuan untuk mengevaluasi manajemen pemberian pakan dengan kadar protein berbeda terhadap kinerja produksi dan kinerja usaha budidaya pembesaran ikan lele yang dipelihara dalam sistem bioflok. Ikan yang digunakan dalam penelitian ini memiliki bobot awal 5,48±1,31 g dan panjang awal 9,36±0,54 cm. Manajemen pemberian pakan dilakukan dengan pemberian pakan tinggi protein (HP) (33%) selama masa pembesaran dan kombinasi pakan HP (selama 42 hari pertama) dengan pakan rendah protein (LP) (14%) hingga panen. Kedua perlakuan ini diujikan pada dua sistem pembesaran ikan lele dengan metode konvensional pada kepadatan rendah (150 ekor m-3) dan sistem bioflok dengan kepadatan tinggi (500 ekor m-3). Tingkat kelangsungan hidup ikan tidak berbeda nyata antar perlakuan (P>0,05). Laju pertumbuhan dan efisiensi pakan terbaik terdapat pada perlakuan pemberian pakan protein tinggi dan tidak berbeda antara sistem konvensional dan sistem bioflok. Pemberian pakan rendah protein meningkatkan retensi protein pada kedua sistem pemeliharaan. Hasil analisis usaha menunjukkan bahwa perlakuan bioflok dengan pakan HP menghasilkan keuntungan terbesar di antara perlakuan lainnya yaitu Rp 24.413.257, R/C ratio sebesar 1,07, dan payback period selama 1,51 tahun. Penggunaan sistem bioflok dengan pakan berprotein tinggi dapat meningkatkan produktivitas dan keuntungan usaha pembesaran ikan lele dibandingkan dengan sistem konvensional dengan kepadatan rendah. Hasil penelitian ini juga menunjukkan bahwa pemberian pakan dengan protein rendah tidak dapat menurunkan biaya pakan ataupun meningkatkan keuntungan usaha pembesaran ikan lele. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/52669 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 2 (2024): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33613 2021-11-30T11:46:09Z saintek:RSA

nmb a2200000Iu 4500 "210828 2021 eng " 2549-0885 1858-4748 dc Harlyan, Ledhyane Ika Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya https://orcid.org/0000-0001-7527-2607 Tobing, Fransisca Sariuli Bintoro, Gatut http://orcid.org/0000-0001-8144-8111 Kurniawati, Vita Rumanti Rahman, Muhammad Arif https://orcid.org/0000-0001-5934-7146 Rihmi, Mihrobi Khalwatu Penggunaan alat tangkap pasif seperti gillnet pada pengelolaan perikanan Tembang diharapkan mampu mengurangi kapasitas penangkapan. Namun sayangnya terbatasnya referensi terkait selektivitas dan penggunaan mata jaring gillnet yang berbeda untuk sumberdaya ini akan beresiko pada ketidaktepatan pengelolaan perikanan Tembang di perairan Muncar, oleh karena itu kajian tentang perbedaan ukuran mata jaring gillnet terhadap sumberdaya ikan Tembang perlu dilakukan.  Penelitian dilakukan pada bulan Februari hingga Maret 2020 dengan mengobservasi pengoperasian gillnet hanyut permukaan dengan ukuran mata jaring 2,54 cm dan 3,17 cm terhadap hasil tangkapan ikan Tembang. Rancangan penelitian mempertimbangkan dua waktu pengoperasian alat tangkap yang umum digunakan nelayan setempat yaitu pada pagi hari (03.00 – 07.00) dan sore hari (15.00 – 19.00). Analisis data dilakukan dengan menggunakan analisis selektivitas alat tangkap gillnet dan analisis rancangan acak lengkap (RAL) faktorial dua faktor, yaitu faktor ukuran mata jaring dan waktu pengoperasian dengan pengulangan yang dilakukan sebanyak enam kali.  Hasil selektivitas terhadap dua ukuran mata jaring gillnet dengan pertimbangan ukuran ikan Tembang pertama kali matang gonad (Lm) sebesar 13 cm mengindikasikan bahwa gillnet dengan mata jaring ukuran 3,17 cm mampu menangkap ikan Tembang dengan ukuran layak tangkap. Hal ini sejalan dengan hasil analisis RAL faktorial yang menyatakan bahwa gillnet dengan ukuran mata jaring 3,17 cm menghasilkan volume hasil tangkapan ikan tembang lebih besar dibanding ukuran mata jaring 2,54 cm dengan pengoperasian alat tangkap gillnet hanyut di sore hari. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa penggunaan mata jaring gillnet yang relatif lebih besar mampu mengurangi resiko terjadinya growth overfishing karena ikan yang tertangkap telah melalui fase matang gonad.   The use of passive gear like gillnet for Goldstripe Sardinella fisheries management might lead to a decrease in fishing capacity. Limited references related to gillnet selectivity and the use of difference mesh size for Goldstripe sardinella may cause the risk of its mismanagement in Muncar. This work was conducted from February to March 2020 by observing fishing operation of surface drift gillnet with mesh size 2.54 cm and 3.17 cm and its Goldstripe sardinella catches. Research design was applied for two fishing operations, morning (03.00 – 07.00) and afternoon setting (15.00 – 19.00). Gear selectivity analysis and analysis of variance (ANOVA) two factors, mesh sizes and setting time, with six replications were applied for analyzing the catch data.  The results of two-mesh size selectivity showed that gillnet with mesh size 3,17 cm provides catches with length more than 13 cm (length at first maturity, Lm). This was also in line with the results of ANOVA test suggested that gillnet with the size of 3,17 can produce more fish compared to gillnet with that of 2,54 cm by afternoon gillnet setting. It can be concluded that the use of bigger mesh size can relatively reduce the risk of growth overfishing since the caught fish might be passed the maturity phase. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33613 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/69818 2025-04-15T08:09:35Z saintek:RSA

nmb a2200000Iu 4500 "241231 2024 eng " 2549-0885 1858-4748 dc PENGELOLAAN PENELURAN PENYU SEBAGAI UPAYA KONSERVASI JENIS IKAN DI PULAU MANGKAI Sinaga, Ronald Raditya Kesatria Loka Kawasan Konservasi Perairan Nasional (KKPN) Pekanbaru. Jalan Budi Luhur, Kel. Mentangor, Kec. Kulim Pekanbaru, Indonesia Irfansyah, Rahmat Loka Kawasan Konservasi Perairan Nasional (KKPN) Pekanbaru. Jalan Budi Luhur, Kel. Mentangor, Kec. Kulim Pekanbaru, Indonesia Daniel, Nadia Amalina Loka Kawasan Konservasi Perairan Nasional (KKPN) Pekanbaru. Jalan Budi Luhur, Kel. Mentangor, Kec. Kulim Pekanbaru, Indonesia Hanif, Andriyatno Loka Kawasan Konservasi Perairan Nasional (KKPN) Pekanbaru. Jalan Budi Luhur, Kel. Mentangor, Kec. Kulim Pekanbaru, Indonesia Hidayati, Jelita Rahma Program Studi Ilmu Kelautan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Maritim Raja Ali Haji Jl. Jalan Politeknik Senggarang Tanjungpinang, 29111 Indonesia Penyu; Pulau Mangkai; Hatching success; Kawasan Konservasi Kepulauan Anambas merupakan Kawasan konservasi yang dikelola sebagai upaya perlindungan dan pelestarian terhadap sumber daya ikan yang dilindungi, salah satunya penyu. Loka KKPN Pekanbaru melakukan monitoring penyu sebagai langkah konkret dalam menjaga populasi penyu agar tetap lestari serta untuk memperkuat penyusunan basis data penyu secara nasional. Lokasi pendaratan penyu yang dipilih sebagai titik monitoring adalah Pulau Mangkai yang merupakan pusat pelestarian penyu yang diinisiasi oleh LKKPN Pekanbaru. Kegiatan ini bertujuan untuk menggambarkan capaian monitoring penyu di Pulau Mangkai dan upaya kolaborasi konservasi penyu di Kawasan Konservasi Kepulauan Anambas. Metode yang digunakan adalah metode kuantitatif dengan melakukan survei untuk mendapatkan data dan informasi yang dilakukan selama 12 bulan dengan total 365 hari monitoring selama tahun 2023. Hasil kegiatan monitoring menunjukan bahwa Pulau Mangkai menjadi tempat pendaratan penyu hijau dan penyu sisik sebanyak 828 kali pendaratan dengan jumlah peneluran hingga 713 sarang. Persentase penetasan dari sarang yang telah direlokasi adalah 82.19% dengan Hatching success 81.05%. Tukik yang hidup kemudian dirilis ke perairan dengan persentase perilisan tukik sebesar 98.62%. Keterlibatan stakeholder menjadi upaya yang penting dalam pengelolaan jenis ikan dilindungi di Kawasan Konservasi, dimana Kepulauan Anambas sebagai kawasan konservasi perairan sejak 2014 – 2023 bersama dengan multistakeholder telah berhasil menyelamatkan total 4813 sarang penyu dan merilis 312.919 ekor tukik di Pulau Mangkai, Pulau Pahat, Pulau Telukdalam dan Pulau Bawah. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-31 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/69818 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 4 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11140 2020-04-17T19:22:47Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc FLUKTUASI KANDUNGAN AMONIA DAN BEBAN CEMARAN LINGKUNGAN TAMBAK UDANG VANAME INTENSIF DENGAN TEKNIK PANEN PARSIAL DAN PANEN TOTAL Fluctuations of Ammonia and Pollution load in Intensive Vannamei Shrimp Pond Harvested Using Partial and Total Method Romadhona, Bayu Program Studi Pascasarjana Ilmu Lingkungan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Yulianto, Bambang Program Studi Pascasarjana Ilmu Lingkungan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Sudarno, Sudarno Program Studi Pascasarjana Ilmu Lingkungan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro vaname; amonia; intensif; panen parsial; panen total   Kemajuan teknologi budidaya udang di Indonesia semakin pesat, seiring dengan berkembangnya budidaya Udang Putih Vaname (Litopenaus vannamei), sebagai komoditas ekonomis di tambak selain udang windu dan bandeng. Budidaya intensif Udang Vaname dicirikan dengan padat penebaran benih tinggi dan penggunaan pakan tambahan. Manajemen pakan yang kurang baik, berakibat pada timbulnya sisa pakan, secara perlahan-lahan akan meningkatkan kadar bahan pencemar dan menurunkan kualitas air tambak. Upaya yang dikembangkan untuk mengurangi masukan nutrien dari pakan selama budidaya udang vaname intensif adalah metode panen parsial, yaitu melakukan pemanenan udang secara bertahap (parsial) saat proses budidaya berlangsung. Tujuan dari penelitian ini adalah untuk mengevaluasi fluktuasi amoniak, menganalisa sumbangan beban cemaran amoniak ke lingkungan serta mengkaji kelayakan usaha budidaya udang vaname intensif dengan teknik panen parsial dan panen total. Panen parsial dilaksanakan umur 65 hari pada petak 2B, sedangkan panen total petak 2A dan 2B umur 80 hari pemeliharaan. Hasil yang diperoleh kandungan amoniak di akhir periode pemeliharaan petak 2A (panen total) dan petak 2B (panen parsial) adalah 0,120 mg/l dan 0,050 mg/l dengan nilai indeks kualitas air Prakash yang sama yaitu 51,11 kriteria kualitas air sedang. Sumbangan beban cemaran amoniak terhadap lingkungan petak 2A sebesar 7,667 kg/ha/th, petak 2B sebesar 3,164 kg/ha/th. Penilaian kelayakan ekonomi dari biomassa Udang Vaname yang dipanen secara total dan parsial. Hasil perhitungan teknik panen total nilai NPV Rp 88.448.362: IRR 27,09 ; B/C 2,11, teknik panen parsial NPV Rp 426.601.399 ; IRR 69,02: B/C 2,30. Kedua teknik panen mencerminkan usaha layak untuk dilanjutkan. Teknik panen parsial. mampu meminalkan sumbangan beban cemaran ke lingkungan serta memberikan keuntungan usaha lebih besar Rp 9.063.000/siklus/petak dibandingkan teknik panen total. Perlu adanya upaya pengolahan buangan air limbah di akhir pemeliharaan sebelum dibuang ke perairan umum agar memenuhi syarat baku mutu effluent.   Technological development of shrimp farming in Indonesia is growing rapidly, along with the development of white shrimp(Litopenaus vannamei) aquaculture, which is an economically viable commodity in pond culture besides tiger prawn and milkfish. Vanamei intensive shrimp aquaculture is characterized by a high stocking density of seeds and the use of additional feed. Poor feed management will result in the increase of food residue and gradually increases the levels of pollutants that degrade the water quality. Efforts to reduce nutrient inputs of feed for shrimp farming is partial harvesting method by harvesting shrimp in stages (partial) during the period of culture. The purpose of this study was to evaluate the fluctuation of ammonia, analyzing environmental contaminant load and study the feasibility of intensive shrimp farming of vanamei with partial harvesting techniques and the total harvest. Partial harvest was held at the age of 65 days for plots 2B, while the total harvest was done at plots 2A and 2B at 80 days. The results of ammonia concentration at the end of the culture period 2A plots (total harvest) and plots 2B (partial harvest) was 0.120 mg / l and 0.050 mg / l respectively, with similar Prakash water quality index of 51.11. Ammonia contamination load in plots 2A was 7,667 kg / ha/years, and plots 2B was  3,164 kg / ha/years. Results of the NPV value of total harvest was Rp 88,448,362: IRR 27.09; B / C of 2.11 whereas for partial harvesting techniques NPV Rp 426 601 399; IRR 69.02: B / C 2.30. Partial method  techniques of vanamei harvest can be minimalizing contaminant load in environmental and was more feasible because it provides greater profit of Rp. 9.063 million / cycle / plot. Efforts are required to discharge wastewater treatment at the end of the culture period before being released into the surrounding environment in order to meet the required effluent quality standarts.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11140 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/6762 2025-04-26T12:33:08Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc The Influence of Depth of Plantation to the Growth Rate of Eucheuma cottonii Seaweed Cultivated by Longline Method in Mlonggo Beach, Jepara Regency Susilowati, Titik Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Rejeki, Sri Staf Pengajar Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Zulfitriani, Zulfitriani Mahasiswa Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Dewi, Eko Nurcahya Staf Pengajar Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang The aim of the research was to evaluate the influence of three different depth of plantation of Eucheuma cottonii seaweed to the relative and daily growth rate of seaweed.   The experiment   was  designed using a Completely Randomized Design with 3 treatments (25, 50 and 75 cm) depths of Eucheuma  cottonii seaweed. Each treatments was done in triplicate.   Data of the relative and daily growth rate of seaweed are expressed as mean ± standard deviation and then  were analysed using one way Analysis of Variance (ANOVA). A Duncan Multiple test was applied to find out the difference among the treatments. Based on the results, the different depth of plantation gave a highly significant influence (p<0.01) to the the relative and daily growth rate of seaweed. The treatment for 25 cm of the depth plantation showed the relative growth of seaweed of 910% , nearly 3 times of 75cm of depth plantation. The result of this research indicated that the 25 cm depth of plantation was the best relative and daily growth rate of seaweed of all treatments.   Key words : The depth of plantation , relative growth rate, daily growth rate, Eucheuma cottoniii Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6762 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/38210 2022-06-18T09:12:11Z saintek:RSA

nmb a2200000Iu 4500 "211210 2021 eng " 2549-0885 1858-4748 dc Maulina, Irma Dwi Perikanan Tangkap, Universitas Diponegoro Teknologi Perikanan Laut, Institut Pertanian Bogor Purbayanto, Ari Nurani, Tri Wiji Penggunaan alat tangkap bubu telah berkontribusi dalam kegiatan pemanfaatan sumber daya perikanan karang di Pulau Karimunjawa. Salah satu target tangkapan bubu yakni ikan kerapu yang merupakan ikan konsumsi bernilai ekonomis tinggi. Permintaan ikan kerapu terus meningkat, sehingga nelayan cenderung menangkap semua ukuran, termasuk ikan kerapu muda yang belum pernah memijah (immature). Dewasa ini, kondisi perikanan kerapu terindikasi mengalami penurunan stok akibat tekanan penangkapan. Apabila hal ini diabaikan, tidak menutup kemungkinan bahwa kegiatan penangkapan berpeluang mengancam status keberlanjutan sumber daya ikan. Salah satu cara untuk mengurangi hasil tangkapan kerapu belum layak tangkap yakni dengan penggunaan celah pelolosan. Namun belum diketahui sejauh mana efektivitasnya ketika diaplikasikan pada penangkapan ikan karang dengan bubu di Karimunjawa. Oleh karenanya penelitian ini bertujuan mengkaji efektivitas penggunaan celah pelolosan pada bubu dalam mengurangi peluang tertangkapnya kerapu muda belum layak tangkap serta kelangsungan hidup kerapu pasca penangkapan. Penelitian dilakukan dengan metode experimental fishing. Pengambilan data dilakukan melalui observasi dan pengukuran langsung di lapangan. Kurva rasio kelangsungan hidup ikan dihitung dengan metode kuadrat terkecil non linier menggunakan fasilitas Solver pada MS-Excel. Hasil penelitian menunjukkan bahwa penggunaan celah pelolosan pada bubu dapat menurunkan hasil tangkapan ikan kerapu muda yang belum layak tangkap dari 66.70% menjadi 45.50%. Penggunaan celah pelolosan telah mampu menurunkan hasil tangkapan ikan kerapu belum layak tangkap dengan tingkat efektivitas 69.20%. Ikan kerapu pasca pelolosan dapat bertahan hidup dengan rasio kelangsungan hidup sebesar 77.88% dimana rasio kelangsungan hidup ikan juvenil (86.4%) lebih tinggi dibanding ikan kerapu dewasa (69.2%) pada hari ke-8 pasca penangkapan.   The use of basket traps has contributed to the utilization of reef fisheries resource in Karimunjawa Island. The basket trap is a fishing gear that dominant used for capturing grouper, which is a high economic valueble fish consumption. The demand for groupers continues to increase, so fishermen tend to catch all sizes of groupers, including young immature fish. Currently, there are indications that the condition of grouper fisheries has decreased in stock due to fishing pressure. If this is ignored, there may be opportunities to threaten the sustainability status of grouper fish resources. An option to reduce the catch of immature grouper is the use of escape gaps. However, it is not yet known to what extent its effectiveness for fishing activities in Karimunjawa Island. Therefore, this study aims to examine the effectiveness of using the escape gap in traps for reducing the chances of catching immature groupers. The research was conducted using an experimental fishing method. The data collection method was carried out through field observations. Fish survival ratio were calculated using non linier least square method by the solver facility. The results showed that the catch of immature groupers decreased from 66.7% to 45.5%. The use of escape gaps was able to reduce immature grouper with and effectiveness of 69.2%. Grouper can survive after passing through the escape gap with a survival ratio at the eighth day of observation was 77.8%, where the survival ratio of juvenile (86.4%) is higher than adult groupers (69.2%). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-12-10 06:13:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/38210 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 4 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/68615 2025-04-25T14:25:54Z saintek:RSA

nmb a2200000Iu 4500 "250424 2025 eng " 2549-0885 1858-4748 dc FEASIBILITY STUDY OF DOMESTICATION OF WADER FISH (PUNTIUS BINOTATUS) IN THE BRANTAS WATERSHED AREA, EAST JAVA Ferawati, Yunetta Doctoral Program in Environmental Science, Brawijaya University, Malang https://orcid.org/0009-0009-5029-2009 Khusaini, Moh. https://orcid.org/0000-0002-2391-4732 Parmawati, Rita Doctoral Program in Environmental Science, Brawijaya University, Malang https://orcid.org/0000-0003-0465-2383 Efani, Anthon Doctoral Program in Environmental Science, Brawijaya University, Malang https://orcid.org/0009-0005-3663-5643 business feasibility; domestication; Puntius binotatus Puntius binotatus Wader fish in the Brantas River Basin, East Java has an important position for society and the environment, so it is important to make an effort to maintain its sustainability, one of which is through Domestication. This study aims to further examine whether the domestication of Puntius binotatus Wader fish is feasible as an alternative farming business for the community in the Brantas River Basin, East Java. The feasibility analysis of Puntius binotatus Wader fish domestication was carried out by analyzing the market, technical, management, social, and environmental aspects first before conducting a financial analysis. The results of the analysis show that the market share of Wader fish seeds where the demand for seeds is greater than the existing supply. Technically, there are no obstacles or problems that hinder the running of the business. Domestication implementers can run their businesses because they already have a fairly good organizational structure. Social and environmental analysis shows that the Wader Cakul fish seed business (Puntius binotatus) is very feasible to run because it has a positive impact on society and maintains the sustainability of the surrounding natural environment. Financially, the Wader Cakul (Puntius binotatus) fish breeding business at UPT PBAT Umbulan obtained an NPV value greater than zero, which is Rp109,256,722. Net B/C is greater than one, which is 2.35. The IRR value obtained from the financial analysis of the Wader Cakul (Puntius binotatus) fish farming business is 30.16 percent, where the IRR value is greater than the applicable discount rate of 4.75 percent, which means that the Wader Cakul (Puntius binotatus) fish farming business is financially feasible to be implemented Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-04-16 03:41:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/68615 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 1 (2025): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13190 2020-04-17T19:24:33Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc IDENTIFIKASI DAN KELIMPAHAN BAKTERI PADA JENIS KARANG Acropora sp. DI REEF FLAT TERUMBU KARANG PULAU PANJANG JEPARA Identification and Abundance of Bacteria In Acropora sp. at Coral Reef Flat Panjang Island Jepara Saputri, Rizka Alifianita Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Widyorini, Niniek Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Purnomo, Pujiono Wahyu Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jenis Bakteri; Kelimpahan Bakteri; Identifikasi Bakteri; Acropora sp.; Pulau Panjang   Pulau Panjang di utara Kota Jepara memiliki wilayah terumbu karang dengan jenis karang dominan yaitu Acropora sp. Ekosistem ini merupakan habitat yang mendukung kehidupan biota akuatik di sekitarnya termasuk mikroorganisme yang terdapat di dalamnya. Keberadaan bakteri di dalam koloni karang diperlukan sebagai biota pendukung sediaan nutrisi untuk proses fotosintesis zooxanthellae dalam polip karang. Tujuan dari penelitian ini adalah untuk mengetahui jenis bakteri dan kelimpahannya pada jenis karang Acropora sp. di reef flat terumbu karang di Pulau Panjang Jepara. Penelitian ini dilaksanakan pada bulan Maret-April 2016 dengan menggunakan metode deskriptif. Materi uji adalah supernatan dari Acropora sp. yang telah dicentrifuge selanjutya dilakukan isolasi bakteri, kultur, uji morfologi, dan uji biokimia. Hasil penelitian yang diperoleh adalah terdapat 3 jenis bakteri yang teridentifikasi di karang Acropora sp. yaitu Listeria sp., Bacillus sp.[1], Bacillus sp.[2] dan Micrococcus sp. Ketiga genera tersebut termasuk bakteri fakultatif dan berfungsi sebagai bakteri perombak bahan organik. Kelimpahan bakteri di karang Acropora sp. berkisar antara 1,0x104 Cfu/ml hingga 8,4x105 Cfu/ml. Pada stasiun I kelimpahan bakteri sebesar 2,0x104 Cfu/ml hingga 6,2x105Cfu/ml, stasiun II kelimpahan bakteri sebesar 1,0x104 Cfu/ml hingga 8,4x105Cfu/ml, serta pada stasiun III kelimpahan bakteri sebesar1,0x104 Cfu/ml hingga 1,3x105Cfu/ml. Kelimpahan bakteri tertinggi ditemukan pada stasiun II. Jenis bakteri Listeria sp. mendominasi dengan nilai 8,4x105 Cfu/ml sedangkan bakteri Micrococcus sp. memiliki nilai terendah yaitu 1,0x104 Cfu/ml.    Panjang Island in the north of Jepara has coral reef areas which the dominant coral species is Acropora sp. This ecosystem is the habitat that supports to life for their surrounding aquatic organism, including microorganisms. The existence of bacteria in coral colonies is required to support nutrients availability for zooxanthellae photosynthesis inside coral polyps. The purposes of this study are to determine the type and abundance of bacteria present on Acropora sp. coral species on the reef flat coral reefs in Panjang Island Jepara. This study was conducted in March-April 2016 by using descriptive method. The material of research are supernatant of Acropora Sp  after centrifuged and continued to isolation of bacteria, culture, morphology test and biochemical test. The results obtained is there are three species of bacteria that identified in Acropora sp. Those are, Listeria sp., Bacillus sp. [1], Bacillus sp. [2] and Micrococcus sp. All those genera include to facultativebacteria and serves as organic material decomposer bacteria. The abundance of bacteria in the Acropora sp. coral are between 1,0x104 Cfu/ml to 8,4x105 Cfu/ml. At the station I abundance of bacteria was2,0x104 Cfu/mlto 6,2x105Cfu/ml, station II abundance of bacteria was 1,0x104 Cfu/ml to 8,4x105Cfu/m, and at station III abundance of bacteria was 1,0x104 Cfu/ml to 1,3x105Cfu/ml. The highest abundance of bacteria is located at station II.The type of Listeria sp. bacteria dominates the highest value, that is 8,4x105 Cfu/ml while Micrococcus sp. bacteria has the lowest value, that is 1,0x104 Cfu/ml.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13190 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21413 2020-04-17T19:29:36Z saintek:RSA

nmb a2200000Iu 4500 "180828 2018 eng " 2549-0885 1858-4748 dc KARAKTERISTIK EDIBLE FILM KARAGENAN DENGAN PENAMBAHAN EKSTRAK BAWANG PUTIH (Allium sativum) SEBAGAI ANTIBAKTERI (The Characteristic of Carrageenan Edible Film with the Addition of Garlic (Allium sativum) as Antibacterial) Anggraini, Tika Novia Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Agustini, Tri Winarni Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Rianingsih, Laras Program Studi Teknologi Hasil Perikanan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Karagenan; Edible film; Ekstrak bawang putih; Aktivitas antibakteri Edible film merupakan suatu lapisan tipis yang dapat melindungi bahan pangan untuk menjaga kualitas produk. Bawang putih mengandung senyawa allin yang merupakan senyawa antibakteri jika ditambahkan pada edible film karagenan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan ekstrak bawang putih sebagai antibakteri dan karakteristik edible film karagenan. Metode penelitian yang digunakan bersifat eksperimental laboratories dengan rancangan percobaan Rancangan Acak Lengkap (RAL) dengan parameter uji konsentrasi ekstrak bawang putih yang berbeda. Data dianalisis menggunakan ANOVA dan dilakukan uji lanjut Beda Nyata Jujur (BNJ). Hasil penelitian menunjukan bahwa ekstrak bawang putih berpengaruh terhadap aktivitas antibakteri dan karakteristik edible film karagenan. Hasil yang diperoleh dari perlakuan penambahan 7,5% ekstrak bawang putih sebagai antibakteri dapat dilihat zona hambatnya terhadap bakteri S. aureus sebesar: 3,00±0,100  mm dan bakteri E. coli: 2,18±0,07 mm sedangkan nilai karakteristik ketebalan: 0,17±0,003 mm, laju transmisi uap air: 6,49±0,42 g/m2/jam, kuat tarik: 13,88±0,29 MPa, persen pemanjangan: 14,75±0,09%. Kesimpulan menunjukkan bahwa penambahan ekstrak bawang putih pada edible film karagenan memberikan pengaruh nyata (P<0,05) terhadap aktivitas antibakteri dan karakteristik edible film karagenan.   Edible film is a thin layer which able to protect the food and keep its quality.Garlic contains Allin compound which worked as antibacterial if added into carrageenan edible film. This study aimed to determine the effect of garlic extract addition as antibacterial and the characteristic of carrageenan edible film. The method was experimental laboratories with Completely Randomized Design with different concentration of garlic extract as the testing parameters. Data were analyzed using ANOVA then tested using Honestly Significance Difference (HSD) to determine the significance value of the sample. The result showed that the garlic extract was significant difference toward the antibacterial activities and the characteristic of carrageenan edible film. The result obtained from 7.5% garlic extract addition as antibacterial was the inhibition zone against S. aureus and E. coli of 3.00±0.100 mm and 2.18±0.07 mm; respectively. The other parameters such as thickness 0.17±0.003 mm, the water vapor transmission rate 6.49±0.42 g/m2/hour, the tensile strength 13.88±0.29 MPa, and the percent elongation 14.75±0.09%. The result indicated that the addition of garlic extract was significant difference (P<0,05) toward the antibacterial activities and characteristic of carrageenan edible film. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21413 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6813 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc The Effect of Length of A3-51 Probiotic Supplementation to The Number of Intestine Enterobacteriaceae in Oreochromis niloticus Desnilasari, Dewi Fakultas Biologi Universitas Jenderal Soedirman Sukanto, Sukanto Fakultas Biologi Universitas Jenderal Soedirman Irianto, Agus Fakultas Biologi Universitas Jenderal Soedirman The aim of this research was to know the effect of length of A3-51 probiotic  supplementation  to the number   of   intestine   Enterobacteriaceae.   Research   used   experimental   method   using   Completely Randomized  Design  which  was  based  on  4   treatments  i.e.  La  (without  probiotic),  Ll  (probiotic supplementation for 7 days), L2 (probiotic supplementation for 14 days), L3 (probiotic supplementation for 21 days). Each  treatment was repeated 3 times. The result showed that the length period of A3-51 probiotic   supplementation  very   significantly  (P<0,01)  increased  the  intestine   Enterobacteriaceae number. However, in the same time the amount of pathogenic Enterobacteriaceae decreased. In addition, probiotic supplementation improved protein, fat, and carbohydrate digestions.   Key words: Enterobacteriaceae, intestine, probiotic, nutrient digestibility Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6813 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/43980 2022-04-19T17:15:57Z saintek:RSA

nmb a2200000Iu 4500 "220419 2022 eng " 2549-0885 1858-4748 dc Rohmanawati, Ulva Herawati, Vivi Endar Department of Aquaculture Universitas Diponegoro Windarto, Seto Udang vaname (L. vannamei) merupakan salah satu komoditas perikanan laut yang memiliki nilai ekonmis tinggi di pasar domestik maupun pasar global. Kendala yang sering dialami pembudidaya pada pemberian pakan alami adalah harga artemia yang tinggi, sehingga diperlukan pengganti artemia dengan kandungan nutrisi yang hampir sama, yaitu cacing laut (Nereis sp.). Nereis sp. telah dimanfaatkan sebagai pakan alami yang dibutuhkan untuk kelangsungan produksi naupli di pembenihan udang. Pengoptimalan pertumbuhan udang vaname dapat menggunakan penambahan pengkayaan pada Nereis sp., yaitu menggunakan minyak cumi. Minyak cumi mengandung arginin yang merupakan bagian dari asam amino essensial untuk meningkatkan pertumbuhan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan cacing laut yang diperkaya dengan minyak cumi terhadap pertumbuhan dan kelulushidupan udang vaname Post Larva 15 dan mengetahui dosis terbaik penambahan Nereis sp. dengan minyak cumi terhadap pertumbuhan dan kelulushidupan udang vaname Post Larva 15. Penelitian ini menggunakan metode eksperimen dan menggunakan uji duncan dengan rancanagan acak lengkap (RAL) 4 perlakuan dan 3 ulangan. Perlakuan penambahan minyak cumi pada pakan Nereis sp. yaitu A (0 ml), B (5 ml), C (10 ml), dan D (15 ml). Data yang diamati meliputi pertumbuhan bobot mutlak, RGR, TKP, EPP, PER, dan SR. Penambahan minyak cumi pada pakan Nereis sp. memberikan pengaruh nyata (P<0,05) terhadap pertumbuhan dan kelulushidupan post larva udang vaname. Perlakuan (C) merupakan perlakuan terbaik dengan pemberian pakan Nereis sp. yang ditambah minyak cumi 10 ml dengan nilai pertumbuhan bobot mutlak (0,38±0,01 g); RGR (24,56±2,50%); TKP (472,59±2,50%); TKP (472,59±0,10 g); EPP (2,43±0,04%); PER (4,35±0,06%); dan SR (98,89±1,92%).   Pacific white shrimp (L. vannamei) is a marine fishery commodity with high economic in domestic and global markets. The obstacle that cultivators experience in providing natural food is the high price of Artemia, so it is necessary to replace Artemia with almost the same nutritional content, sea worms. Nereis sp. has been used as a natural feed to maintain nauplii production in shrimp hatcheries. Optimizing the growth of vaname shrimp can use the addition of enrichment in Nereis sp., namely using squid oil. Squid oil contains arginine, part of the essential amino acids for increase growth. The purpose of this study was to determine the effect of adding sea worms enriched with squid oil on the growth and survival of Pacific white shrimp Post Larvae 15, and knowing the best dose of addition of Nereis sp. with squid oil. The treatment of adding squid oil to the feed of Nereis sp. were A (0 ml), B (5 ml), C (10 ml), and D (15 ml). The data observed include absolute weight growth, RGR, TFC, FUE, PER, and SR. The addition of squid oil to the feed of Nereis sp. had a significant effect (P<0.05) on the growth and survival rate of vaname shrimp postlarvae. Treatment (C) was the best treatment with Nereis sp. which was added with 10 ml of squid oil. Those  dosages  resulted  in  the maxium values of 0,38 g, 24,56%, 472,59 g, 2,43%, 4,35%, and 98,89% for absolute weight growth, RGR, TKP, EPP, PER, and SR respectively.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/43980 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/67637 2025-08-04T07:39:54Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc THE EFFECT OF FLOATING AQUAPONIC SYSTEM WITH DIFFERENT TYPES OF PLANTS ON THE NUTRITION OF TILAPIA (Oreochromis niloticus) MEAT Djonu, Asriati Study Program of Aquaculture, Universitas Nusa Cendana https://orcid.org/0000-0003-1072-9690 Salosso, Yuliana Study Program of Aquaculture, Universitas Nusa Cendana Jasmanindar, Yudiana Study Program of Aquaculture, Universitas Nusa Cendana Santoso, Priyo Study Program of Aquaculture, Universitas Nusa Cendana Brassica rapa; Fish Meat; Ipomoea aquatica; Lactuca sativa; Protein The floating aquaponic system using different types of plants can be an environmentally friendly cultivation solution, easy to apply on a household scale and profitable. However, various types of plants in aquaponics have different nutrient absorption capacities that can affect the quality of fish meat. This research aimed to see the type of plant that is best at producing quality of tilapia (Oreochromis niloticus) meat produced from cultivation with a floating aquaponic system using different types of plants. The types of plants used included spinach (Ipomoea aquatica), pakcoy (Brassica rapa), lettuce (Lactuca sativa), and control (without plants), which were repeated three times. Experimental method is used in this research. The results showed that the best treatment was I. aquatica plant treatment which produced a dry weight of tilapia meat of 19.608%; protein of 61.575% DW (Dry Weight); fat of 3.586% DW and ash content of 8.239% DW. The results showed that using I. aquatica plants produced better meat quality than the other two plants. Compared to the control treatment, the difference was very significant. This method has the potential to be widely applied at the household scale in urban and semi-urban areas to get a source of nutritious animal protein and vegetables with minimal use of land, facilities and water. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/67637 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15288 2020-04-17T19:25:38Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc KARAKTERISTIK PERMEN JELLY DENGAN PENAMBAHAN IOTA KARAGENAN DARI RUMPUT LAUT (KARAKTERISTIK PERMEN JELLY DENGAN PENAMBAHAN IOTA KARAGENAN DARI RUMPUT LAUT) Rismandari, Mukarima Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Agustini, Tri Winarni Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Amalia, Ulfah Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Gelatin; Eucheuma spinosum; Tepung Iota Karagenan; Permen Jelly   Permen jelly merupakan permen yang memiliki tekstur kenyal. Tekstur ini terbentuk karena adanya pembentuk gel yaitu gelatin. Penggunaan gelatin dalam permen jelly masih diperdebatkan status kehalalannya, karena adanya unsur babi dalam gelatin. Sementara itu, sumber alternatif lain yang memberikan tekstur kenyal di permen jelly adalah karagenan, tetapi belum jelas sejauh mana dapat menggantikan gelatin. Tujuan dari penelitian ini adalah mengetahui pengaruh iota karagenan yang diekstrak dari Eucheuma spinosum terhadap sifat fisik dan kimia permen jelly dan formulasi terbaik dari permen jelly. Bahan yang digunakan dalam penelitian ini adalah gelatin dan tepung iota karagenan yang diekstrak dari rumput laut E. spinosum. Metode penelitian yang digunakan yaitu experimental laboratories dengan desain percobaan rancangan acak lengkap (RAL) dengan 4 perlakuan yang berbeda yaitu Gelatin : Iota Karagenan = 8% : 0% (A), Gelatin : Iota Karagenan = 0% : 8% (B ), Gelatin : Iota Karagenan = 6% : 2% (C), dan Gelatin : Iota Karagenan = 2% : 6% (D). Hasil dari penelitian ini didapatkan permen jelly terbaik sebagai alternatif pengganti gelatin yaitu perlakuan B dengan kekuatan gel 1.109,27 g.cm2 dan nilai hedonik sebesar 6,84 ≤ µ ≤ 7,52. Kadar air semua perlakuan belum memenuhi standar SNI (20%). Kadar abu semua perlakuan memenuhi standar SNI (3%). Untuk aw dan pH produk tersebut berkisar 0,84–0,89 dan 3–4 .   Jelly candy which has chewy texture. This texture was formed by the gelling agent of gelatin. The use of gelatin in jelly candy still debated of halal status, because there were elements of pork in gelatin. While other alternative source which gives chewy texture in jelly candy was carrageenan, but carrageenan were used in making jelly candy was not extent to be replace of gelatin. The aim of this study was to determine the effect of iota carrageenan extracted from Eucheuma spinosum to physical and chemical characteristics of jelly candy and the best formulation of jelly candy. The materials used in the research were gelatin and powder of iota carrageenan extracted from seaweed E. spinosum. The method used was experimental laboratories by using completely randomized design (CRD) with 4 different treatments was Gelatin : Iota carrageenan = 8% : 0% (A), Gelatin : Iota carrageenan = 0% : 8% (B ), Gelatin : Iota carrageenan = 6% : 2% (C), and Gelatin : Iota carrageenan = 2% : 6% (D). The result showed that the best jelly candy as an alternative to gelatin performed by treatment B with gel strength of 1109,27 g.cm2 and the results for sensory was 6,84 ≤ µ ≤ 7,52. The water content of all treatment did not comply with ISO standard (20 %). Ash content of all treatment comply with ISO standard (3 %). For aw and pH of the products were ranged from 0.84–0.89 and 3–4, respectively.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15288 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22127 2020-04-17T19:30:44Z saintek:RSA

nmb a2200000Iu 4500 "190219 2019 eng " 2549-0885 1858-4748 dc ANALISIS HUBUNGAN SUHU PERMUKAAN LAUT DAN KLOROFIL-A CITRA SATELIT SUOMI NPP VIIRS TERHADAP HASIL TANGKAPAN PURSE SEINE DI PPN PENGAMBENGAN, BALI (Analysis of the Relationship of Sea Surface Temperature and Chlorophyll-a The Suomi NPP VIIRS Satellite Image Against the Catch of the Seine Purse in PPN Pengambengan, Bali) Ghufron, Muhammad Zahrul Muhammad Zahrul Ghufron, Imam Triarso, Kunarso Departemen Perikanan Tangkap, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Triarso, Imam Muhammad Zahrul Ghufron, Imam Triarso, Kunarso Departemen Perikanan Tangkap, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kunarso, Kunarso Muhammad Zahrul Ghufron, Imam Triarso, Kunarso Departemen Perikanan Tangkap, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Perairan Selat Bali; Suhu Permukaan Laut;Kloroil-a; CPUE Perikanan Tongkol (Euthynnus affinis) di Perairan Selat Bali  berkembang pesat sejak diperkenalkannya alat tangkap  Purse seine, hal tersebut menyebabkan semakin meningkatnya jumlah armada kapal penangkap ikan. Meskipun upaya penangkapan meningkat, akan tetapi hasil tangkapan yang didapatkan menurun. Untuk tujuan tersebut diperlukan kajian yang mendalam tentang pola sebaran suhu permukaan laut dan klorofil-a, agar ke depan dapat diketahui daerah penangkapan ikan Tongkol. Penelitian ini mengkaji perbedaan nilai persebaran SPL dan klorofil-a yang secara nyata di lapangan dengan data hasil interpretasi citra satelit Suomi NPP VIIRS, serta mengetahui hubungan distribusi SPL dan klorofil-a terhadap hasil tangkapan ikan Tongkol (Euthynnus affinis). Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Hasil yang didapatkan pada penelitian ini adalah, tingkat akurasi citra satelit Suomi NPP VIIRS pada variabel suhu permukaan laut mencapai 98,98%, sementara untuk tingkat akurasi terhadap konsentrasi klorofil-a mencapai 95,63%. Hubungan suhu permukaan laut dan klorofil-a terhadap CPUE yaitu menunjukan pengaruh yang cukup kuat dengan nilai sebesar 0,585. Nilai r2 menunjukan nilai sebesar 34,3%, yang berarti bahwa sebesar 34,3% CPUE dipengaruhi oleh suhu permukaan laut dan klorofil-a, sedangkan 65,7% dipengaruhi oleh faktor-faktor lain   Eastern Little Tuna (Euthynnus affinis) in the Waters of Bali Strait has been growing rapidly since the introduction of purse seine fishing gear, this has led to an increasing number of fishing vessels. Although the fishing effort increases, the catch obtained decreases. For this purpose an in depth study of the distribution patterns of sea surface temperature and chlorophyll-a is needed, so that in the future it can be known the fishing ground to assist in the effective and efficient utilization of fish resources. This study examines the differences in the value of the distribution of sea surface temperature and chlorophyll-a that are evident in the field with data from interpretation of Somi NPP VIIRS satellite images, and knowing the relationship between the distribution of sea surface temperature and chlorophyll-a to the Eastern Little Tuna catches. The method used in this research is descriptive method. The results obtained in this study are, the accuracy of the Suomi NPP VIIRS satellite image on the variable sea surface temperature reaches 98.98%, while the level of accuracy of the chlorophyll-a concentration reached 95.63%, the relationship between sea surface temperature and chlorophyll-a on CPUE is a fairly strong correlation, with a correlation value of 0,585. The value of r2 means that 34.3% CPUE is influenced by sea surface temperature and chlorophyll-a, while 65.7% is influenced by other factors.. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22127 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6827 2025-04-26T12:45:57Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc The Efficiency Capture on Friendly Modification Boat Seine in Kendal District, Central Java Fitri, Aristi Dian Purnama Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Asriyanto, Asriyanto Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Setiyanto, Indradi Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Kurohman, Faik Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Boat seine is fishing gear in coastal areas consisting of wings and cod (bag). Target catch seine boat in the waters of Spring Sikucing-Weleri was rebon  (shrimp) and fish.  Boat seine problems that exist due to the  large hydrostatic  pressure,  the  number  of  crew (ABK)  and  size  of  a  lot of  fish  are  juvenile  (<10  cm  TL).  Aimed of modification  boat seine  at improving  the  technical efficiency of fishing that will affect the  increased  welfare of fishermen, as well as making environmentally-friendly fishing gear.Modification of the boat seine was located on the wing with nylon netting material change to 380 d / 9, and 7 mm mesh size. Number of crew (ABK) during hauling into 6-8 people, not the garbage that carried during the arrest operation, and the catch of fish is not juvenile (> 15 cm TL).   Keywords: Boat seine modification, Effective, Efficiency and Selective Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6827 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/15294 2017-08-07T10:37:39Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/76862 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Prasetya, Muhamad Diva Faculty of Fisheries and Marine Science, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang KM.21 Jatinangor Rostini, Iis Gumilar, Iwang Pratama, Rusky Intan Kecimpring merupakan makanan ringan tradisional berbasis singkong yang memiliki kandungan protein rendah sehingga perlu dilakukan upaya fortifikasi untuk meningkatkan nilai gizinya. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan daging ikan nila salin (Oreochromis niloticus) terhadap mutu sensori dan kandungan gizi kecimpring serta menentukan konsentrasi terbaik yang dapat diterima konsumen. Penelitian ini menggunakan metode eksperimental dengan empat perlakuan penambahan daging ikan nila salin, yaitu 0% (kontrol); 2,5%; 5%; dan 7,5% dari berat singkong. Uji organoleptik dilakukan terhadap 25 panelis semi terlatih dengan parameter warna, aroma, rasa, dan tekstur menggunakan skala hedonik 1-9, sedangkan analisis proksimat dilakukan untuk menentukan kadar air, abu, protein, lemak, dan karbohidrat. Hasil uji hedonik menunjukkan bahwa penambahan daging ikan nila salin berpengaruh nyata (p<0,05) terhadap penerimaan panelis dengan perlakuan 7,5% memperoleh skor tertinggi pada parameter warna (7,96), aroma (7,56), rasa (7,96), dan tekstur (7,24). Analisis proksimat menunjukkan peningkatan kadar protein dari 4,60% (kontrol) menjadi 6,90% pada perlakuan 7,5%; serta perubahan kecil pada kadar air, abu, lemak, dan karbohidrat. Penambahan daging ikan nila salin sebesar 7,5% direkomendasikan sebagai konsentrasi terbaik dalam menghasilkan kecimpring berbasis singkong dengan mutu sensori terbaik dan nilai gizi lebih tinggi, sehingga berpotensi dikembangkan sebagai pangan lokal fungsional bernilai tambah. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/76862 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16831 2020-04-17T19:27:36Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc ANALISIS ALAT PENANGKAP IKAN BERBASIS CODE OF CONDUCT FOR RESPONSIBLE FISHERIES (CCRF) DI TEMPAT PELELANGAN IKAN (TPI) TAWANG, KENDAL (Analysis of Fishing Gears Based on Code of Conduct for Responsible Fisheries (CCRF) at Tawang Fish Auction, Kendal) Firdaus, Ihtisyamul Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Fitri, Aristi Dian Purnama Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Sardiyatmo, Sardiyatmo Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kurohman, Faik Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Analisis Alat Penangkap Ikan; Code of Conduct of Responsible Fisheries (CCRF); TPI Tawang   Pengelolaan sumberdaya ikan sangat erat kaitannya dengan pengelolaan operasi penangkapan ikan dan sasaran penangkapan ikan yang dilakukan. Perkembangan kegiatan penangkapan ikan di dunia terus meningkat dan telah menunjukkan gejala overfishing salah satunya di perairan TPI Tawang. Alat penangkap ikan yang ada di Tempat Pelelangan Ikan (TPI) Tawang adalah alat tangkap pasif (gill net, trammel net, dan trap) dan aktif (purse seine waring, mini trawl dan boat seine). Tujuan penelitian ini adalah menganalisis unit penangkapan yang sesuai dengan Code of Conduct Responsible for Fisheries (CCRF) di TPI Tawang, Kendal. Metode penelitian yang digunakan adalah metode deskriptif dengan teknik sampling quota sampling, pada bulan Maret-April 2017. Rentang nilai 4 kategori alat tangkap ramah lingkungan, yaitu nilai 1 – 9 diaktegorikan sangat tidak ramah lingkungan, nilai 10 – 18 dikategorikan tidak ramah lingkungan, nilai 19 – 27 dikategorikan ramah lingkungan, dan nilai 28 – 36 dikategorikan sangat ramah lingkungan. Hasil yang dipereroleh dari penelitian ini yaitu alat tangkap yang masuk kategori sangat ramah lingkungan di TPI Tawang adalah gill net, trammel net dan trap dengan masing-masing nilai 32,8; 32,4 dan 34,1 sedangkan boat seine dan purse seine waring termasuk alat tangkap ramah lingkungan dengan masing-masing nilai 25,1 dan 22,9. Alat tangkap mini trawl termasuk alat tangkap yang tidak ramah lingkungan dengan nilai 15,3.    The management of fish resources is closely related to manage of fishing operations and fishing targets. According to WWF (2013), the development of world fishing activities continues to increase and has shown overfishing one of them in Tawang Fishing Auction Place. Fishing equipment in Tawang Fishing Auction House is Gill net, Trammel net, Purse Seine type Waring, Trap, Small Bottom Trawl and Boat Seine. The fishing gear has 2 kinds of the operation that was passive and active catching tool. The purpose of this study is to analyze fishing gear unit according to the Code of Conduct Responsible fisheries in Tawang Fishing Auction House, Kendal. The method used in this research is descriptive method with quota sampling technique, in March-April 2017. Data collection is done by interview to fisherman and direct observation in the field. Range of values of 4 categories of environmentally friendly gear tools as follows: 1- 9 were not very environmentally friendly, 10 - 18 is not environmentally friendly, 19 - 27 environmentally friendly, 28 - 36 is very environmentally friendly. The results obtained from this research are fishing gear that is categorized as very environmentally friendly in Tawang Fishing Auction House is Gill net, Trammel net and Trap with each score 32.8; 32.4 and 34.1 while Boat Seine and Purse Seine type Waring are environmentally friendly fishing gear with each score 25.1 and 22.9. Meanwhile, Mini Trawl including fishing gear that not environmentally friendly with score 15.3.     Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16831 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23012 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc PERTUMBUHAN IKAN NILA (Oreochromis niloticus) DENGAN METODE BUDIDAYA CLEANER PRODUCTION (The Growth of Nile Tilapia (Oreochromis niloticus) in Cleaner Production Culture Method) Haeruddin, Haeruddin Program Studi Doktor Manajemen Sumberdaya Pantai Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Supriharyono, Supriharyono Program Studi Magister Manajemen Sumberdaya Pantai Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Widyorini, Niniek Program Studi Sarjana Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro budidaya; cleaner production; ikan nila; pertumbuhan. Budidaya ikan nila (Oreochromis niloticus) merupakan industri budidaya yang cukup penting saat ini.  Ikan nila merupakan salah satu komoditas unggulan perikanan budidaya.  Penerapan cleaner production dalam budidaya ikan dilakukan untuk mengatasi permasalahan pencemaran lingkungan dari limbah budidaya ikan.  Penelitian ini dilakukan untuk mengkaji pertumbuhan ikan nila (panjang dan berat) pada metode budidaya ikan cleaner production dengan mengaplikasikan enzim EZplus ke dalam pakan untuk menekan limbah padat dan cair yang dihasilkan ikan.  Peubah yang diamati meliputi laju pertambahan panjang harian ikan, laju pertumbuhan berat harian ikan nila atau Specific Growth Rate (SGR), dan rasio konversi pakan atau Food Conversion Ratio (FCR).  Hasil penelitian menunjukkan bahwa penerapan metode budidaya cleaner production pada ikan nila mampu meningkatkan laju pertumbuhan panjang dan bobot ikan serta memperbaiki rasio konversi pakan dan memperbaiki mutu media pemeliharaan ikan.   Nowadays the tilapia (Oreochromis niloticus) culture is one of the important aquaculture industry.  Tilapia is one of the best commodity in fish culture.  Implementation of cleaner production in fish farming is carried out to overcome the problem of environmental pollution from fish farming waste.  This research was conducted to examine the growth of tilapia (length and weight) in the Cleaner Production cultivation method by applying the EZplus enzyme to the feed to suppress the solid and liquid waste produced by fish.  The variables observed included the daily growth rate of fish length, Specific Growth Rate (SGR), and feed conversion ratio (FCR).  The results showed that the application of the Cleaner Production cultivation method in tilapia was able to increase the daily growth rate of fish length and weight as well as improve feed conversion ratio and improve the quality of fish culture media.        Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23012 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6848 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Effect of Bakers Yeast, Vitamin B12, and Vitamin C as Nutritional Improvement of Food on the Density Production of Brachionus plicatilis Chilmawati, Diana Program Studi Budidaya Perairan Fakultas Perikanan dan Kelautan Universitas Diponegoro Suminto, Suminto Program Studi Budidaya Perairan Fakultas Perikanan dan Kelautan Universitas Diponegoro The important factor of seedling production is live food with good quality. One way to improve quqlity of live food, Brachionus plicatilis, to gain a high quality of larvae in seedling production, is through implementing food enrichment. Chlorella sp, which is its live food, can be enriched by combination of baker’s yeast, vitamin B12 and vitamin C, which then given, in order to increase Branchionus plicatilis growth and nutrition content. Purpose of this study is to acknowledge comparative population growth and improvement of Brachionus plicatilis with different kinds of foods enrichment, to understand the right food enrichment composition for Brachionus plicatilis growth. This research are laboratory experimental, with 10 ind/ml early spread density on 5 litres capacity container. The experiment using a Completely Randomize Design with 4 treatment and 3 repetitions. That four treatments included A (Chlorella sp), B (Chlorella sp + baker’s yeast), C (Chlorella sp + baker’s yeast + vitamin B12), D (Chlorella sp + baker’s yeast + vitamin B12 + vitamin C). Result from the research shows that implementation of food enrichment, which using baker’s yeast, vitamin B12 and vitamin C, brings about a great significant differences (p<0,01) in each treatment to population growth. D is the best treatment with specific growth rate of 0,661, maximal density of 530,4 ind/ml and final density of 381,7 ind/ml. Key Words: Elements of Food Enrichment, Population, Brachionus plicatilis Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6848 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/53295 2025-04-14T10:07:39Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/78712 2026-02-05T07:11:14Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc PROFITABILITY UNDER COST INTENSITY: HOUSEHOLD LIVELIHOODS IN CATFISH FARMING IN PALEMBANG Ningrum, Anilda Satya Department of Agricultural Socio-Economics, Faculty of Agriculture, Universitas Sriwijaya, Jl. Raya Palembang-Prabumulih Km 32, Indralaya 30662, Ogan Ilir, South Sumatra, Indonesia Aryani, Desi Department of Agricultural Socio-Economics, Faculty of Agriculture, Universitas Sriwijaya, Jl. Raya Palembang-Prabumulih Km 32, Indralaya 30662, Ogan Ilir, South Sumatra Amin, Mohamad Department of Agricultural Socio-Economics, Faculty of Agriculture, Universitas Sriwijaya, Jl. Raya Palembang-Prabumulih Km 32, Indralaya 30662, Ogan Ilir, South Sumatra Clarias gariepinus; Diversification; Income structure; Operational cost; Pond aquaculture Catfish (Clarias gariepinus) farming is the dominant freshwater aquaculture in Palembang, South Sumatra, serving as both a key livelihood and a major source of local food security. Despite its importance, few studies have examined its economic contribution at the household level. This study analysed the income structure of 60 catfish-farming households in Sukarami, Sematang Borang, Gandus, and Plaju districts, focusing on costs, profitability, and diversification. Data were collected during January–June  2025 through structured interviews, field observations, and official records. Findings show that production is highly operationally  intensive, with feed and seed accounting for 94.30 % of total costs. Despite this, catfish farming remains profitable, generating an average net income of IDR 14.14 million per cycle, or IDR 56.54 million annually. The activity accounted for 61.30% of household income, confirming its role as the primary livelihood source. Complementary activities, including Pangasius sp. farming (15.50 %) and non-fisheries income (23.20 %), provided diversification that mitigates risks and stabilizes cash flow. Overall, catfish aquaculture sustains household economies in Palembang but remains highly vulnerable to fluctuations in input prices and market instability. However, the sector remains highly susceptible  to fluctuations in input prices and market instability. Policy interventions should, therefore, prioritize improvements in feed efficiency, access to quality seed, and cooperative procurement, along with income diversification, to strengthen household resilience and ensure the socio-economic sustainability of small-scale aquaculture. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/78712 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN eng Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/29018 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200430 2020 eng " 2549-0885 1858-4748 dc Sarjito, Sarjito - Diponegoro University Prayitno, Slamet Budi Rochani, Nida Qolbi Salma Haditomo, Alfabetian Harjuno Condro Amalia, Rosa Desrina, Desrina Salah satu permasalahan pada budidaya ikan lele adalah Aeromonasis yang disebabkan oleh Aeromonas hydrophila. Berbagai upaya pencegahan dan pengobatan telah dilakukan dengan menggunakan bahan kimia maupun herbal. Bahan herbal, berupa epibiotik (tunggal maupun campuran) digunakan oleh pembudidaya untuk pencegahan dan pengobatan penyakit ini, karena mudah diperoleh, murah dan ramah lingkungan. Penelitian ini bertujuan untuk mengkaji pengaruh penambahan campuran epibiotik, ekstrak daun binahong dan temulawak pada pakan terhadap profil darah dan kelulushidupan ikan lele yang diinfeksi A. hydrophila. Metoda yang digunakan adalah eksperimen dengan Rancangan Acak Lengkap (6 perlakuan dan 3 ulangan). Seratus delapan puluh ikan lele uji dengan panjang 7-9 cm yang dipelihara pada akuarium berisi air 10 L.  Dosis campuran epibiotik, esktrak daun binahong dan temulawak menggunakan perbandingan untuk perlakuan A (0%:0%), B (100%:0%), C (75%:25%), D (50%:50%), E (25%:75%) dan F (0%:100%) dengan dosis dasar 2500 ppm untuk ekstrak daun binahong dan 900 ppm untuk temulawak. Campuran epibiotik tersebut ditambahkan pada pakan komersil sebagai pakan uji dengan metode spray. Pakan uji diberikan selama 14 hari, kemudian pada hari kelimabelas ikan uji diinjeksi A. hydrophila secara intramuscular dengan konsentrasi 106 CFU/mL. Hasil penelitian menunjukkan bahwa gejala klinis ikan lele yang terinfeksi A. hydrophila adalah nafsu makan rendah, bercak merah, luka, haemorhagi serta warna tubuh memucat.  Penambahan campuran epiobiotik ekstrak daun binahong dan temulawak berpengaruh nyata (p<0,05) terhadap profil darah dan kelulushidupan ikan uji pasca perlakuan dan pasca infeksi. Campuran epibiotik D mampu melawan infeksi A.hydrophilla pada C. gariepinus dengan tingkat kelulushidupan tertinggi (90±17%).   One of the problems in catfish culture was aeromonasis that was caused by Aeromonas hydrophila. The prevention and threatment of this disease have been carried out with using chemichal substance and an epibiotics from eco-friendly herbal plant extracts. Epibiotics, such as binahong leaves and curcuma extracts had been applicated by farmers to threat this disease because of it’s cheap and easy to get it. The aims of this study was to evaluate the effect of mixture binahong leaves and curcuma extracts in feed on blood profile and survival rate of catfish infected A. hydrophila. The method of research used was Completely Randomized Design, consisted of 6 treatments and 3 replications. The catfish used was 180 fishes with length of 7-9 cm that were cultured in aquarium with 10L waters. The basic dosage of binahong leaves and curcuma extracts used was 2500 ppm and 900 ppm with the ratio of treatment A (0%:0%), B (100%:0%), C (75%:25%), D (50%:50%), E (25%:75%), and F (0%:100%). The mix extract was added to the commercial feed as a feed test with spray methods. The treatment feed was given for 14 days and on the next day was done infected A. hydrophila intramusculary with density of 106 CFU/mL. The result showed that catfish infected A. hydrophila had low appetite, redness, ulcer, and hemorhagic, pale body. Feeding with the treatment feed showed the significant result on catfish’s blood profile and survival rate post-treatments and post-infection  (p<0.05). Treatment D showed the best result on survival rate (90±17%). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/29018 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN ind Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8103 2015-06-29T01:10:08Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc ANALISIS PRODUKSI DAN KERAGAAN USAHA GARUK UDANG DI PERAIRAN KOTA SEMARANG (Production Analysis and Feasibility Effort of Dredged Net in Semarang Regency) Jayanto, Bogi Budi Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Bambang, Azis Nur Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Boesono, Herry Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Alat tangkap garuk yang ada di daerah Tambak Lorok Semarang terdiri dari 3 jenis garuk, yaitu garuk biasa, garuk modifikasi dengan rantai dan garuk modifikasi dengan timbal. Adanya modifikasi alat tangkap garuk ini disebabkan oleh karena kurang efektifnya penangkapan udang jika menggunakan penggaruk, karena untuk penangkapan udang sebenarnya cukup dengan desain yang berfungsi untuk mengaduk permukaan substrat dasar perairan sehingga udang akan meloncat untuk masuk dalam cakupan alat tangkap. Penelitian ini bertujuan untuk menganalisis hasil tangkapan udang putih (Penaeus merguiensis) dari 3 jenis garuk udang dan menganalisis perbandingan kelayakan usaha dari 3 jenis alat tangkap garuk udang. Metode penelitian yang digunakan adalah metode deskriptif studi kasus. Pengambilan sampel  hasil tangkapan udang dilakukan pada 3 jenis alat tangkap Garuk Udang selama 3 bulan dengan setiap bulannya diambil data 10 hari. Pengumpulan data dilakukan dengan observasi langsung dan wawancara terhadap nelayan. Analisis teknis dengan membandingkan antara garuk udang biasa dengan garuk udang modifikasi rantai. Sedangkan analisis kelayakan usaha membandingkan antara garuk udang biasa dengan garuk udang modifikasi rantai dengan menggunakan undiscounted criteria yaitu R/C Ratio, Payback Period, Break Event Point. Hasil penelitian menunjukkan bahwa diantara 3 jenis alat tangkap garuk udang yang ada di Tambak Lorok Semarang, Garuk Udang Modifikasi Timah merupakan alat tangkap yang terbaik, dengan hasil tangkapan udang selama 30 hari sebesar 194,64 kg. Berdasarkan analisa usahanya alat tangkap garuk udang biasa mempunyai nilai R/C 1.45, PP 4.67 tahun, BEP produksi 191.75 kg dan BEP harga Rp. 53,683,-/kg. Alat tangkap garuk udang modifikasi rantai mempunyai nilai R/C 1.74, PP 2.89 tahun, BEP produksi 192.50 kg dan BEP harga Rp. 29,358,-/kg.  Sedangkan Alat tangkap garuk udang modifikasi timah mempunyai nilai R/C 1.91, PP 2.37 tahun, BEP produksi 192.63 kg dan BEP harga Rp. 25,549,-/kg. Alat tangkap garuk udang modifikasi timah merupakan alat tangkap yang terbaik dibandingkan alat tangkap garuk udang yang lain. Kata kunci : Garuk Udang, produksi,  kelayakan usaha.   Dredged Net on Tambak Lorok Semarang consist of 3 kinds, those were dredged net, modification dredged net chain, and modification dredged net with lead. Fishing gear modification caused by less efective shrimp fishing using dredged,  because shrimp fishing was enough for design that had stirring effect into demersal substrat so made shrimp leaped into fishing gear range. The purpose of this research were Analysing number of white shrimp (Penaeus merguiensis) catches by 3 kinds of dredged net and knows business feasibility from 3 kinds of dredged net. Research method that used on this research was descriptive method. Sampling shrimp catch result  was did by 3 kinds of shrimp harrow for 3 months, each month data was taken for 10 days. Data collection by direct observation and fishermen interview. Technics analysing by compared genuine harrow and  modification chain harrow. Bussiness analysis compared genuine harrow  and  modification chain harrow by undiscounted criteria those were R/C ratio, payback period, and break event point. The result showed between 3 kinds of shrimp harrow on Tambak Lorok  Semarang,  modification harrow with lead was the best fishing gear, catch result for 30 days were 194,64 kg.  Based on business feasibility analysis, dredged net had R/C 1.45, PP 4.67 years, production BEP 191.75 kg and price BEP  Rp.53,683,-/kg. Modification dredged net by chain had R/C 1.74, PP 2.89 years, production BEP 192.50 kg, and price BEP Rp.19,358,-/kg. Modification dredged net by lead had R/C 1.91, PP 2.37  years, production BEP 192.63 kg, and price BEP Rp.25,549,-/kg. Modification dredged net by lead was the best compared another dredged net. Keywords : Dredged net, production, feasibility effort Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8103 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/6790 2014-04-28T09:15:58Z saintek:RSA

nmb a2200000Iu 4500 "080822 2008 eng " 2549-0885 1858-4748 dc HUBUNGAN ANTARA KELIMPAHAN MEIOFAUNA DENGAN TINGKATAN KERAPATAN LAMUN YANG BERBEDA DI PANTAI PULAU PANJANG JEPARA Ruswahyuni, Ruswahyuni Program Studi Manajemen Sumberdaya Pantai Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Meiofauna  merupakan  salah  satu  biota  yang  sangat  penting  dalam  struktur  rantai  makanan  dalam komunitas padang lamun. Biota meiofauna bersifat relatif menetap pada dasar perairan, oleh karena itu adanya  perubahan  lingkungan  akibat  eksploitasi dan  pencemaran  yang  berlebihan  dapat mengurangi kelimpahan organisme meiofauna sehingga secara tidak langsung juga mempengaruhi ekosistem. Metoda yang digunakan dalam penelitian adalah metode deskriptif. Pengambilan sampel dilakukan sebanyak 3 kali ulangan  dengan interval waktu berdasarkan  surut terendah dari  pasang surut air  laut.  Sampling dilakukan pada 3 stasiun, yaitu pada daerah padang lamun dengan kerapatan jarang, sedang, dan rapat. Setiap stasiun dibagi menjadi tiga titik sampling sehingga semuanya menjadi 9 titik sampling. Hasil penelitian diperoleh 304 individu dari 31 spesies hewan meiofauna pada masing-masing kerapatan lamun yang berbeda. Pada kerapatan lamun jarang ditemukan meiofauna 75 individu pada kerapatan lamun sedang terdapat 104 individu dan pada kerapatan lamun padat ditemukan meiofauna 125 individu. Berdasarkan  uji statistik menunjukkan adanya hubungan antara kerapatan lamun dengan kelimpahan individu meiofauna. Hubungan antara perbedaan kerapatan lamun dengan kelimpahan meiofauna membentuk persamaan Y = 59,0453 + 0,001593x. dengan nilai koefisien korelasi (r) sebesar 0,9997 dan koefisien determinasi (R2) sebesar 0,9995. Sedangkan nilai F hitung > F tabel dengan taraf signifikasi (Sig.) P < 0,05 pada taraf kepercayaan (α) 0,05. Komposisi dan kelimpahan hewan meiofauna dengan tingkat kerapatan lamun berbeda menunjukkan adanya korelasi yang tinggi dan bersifat positif, hal ini berarti  setiap  pertambahan  kerapatan  lamun  diikuti  dengan  pertambahan  komposisi  dan  kelimpahan spesies dan kelimpahan individu hewan meiofauna.   Kata Kunci : Lamun, Meiofauna, Kerapatan, Kelimpahan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6790 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/43648 2025-04-15T07:52:27Z saintek:RSA

nmb a2200000Iu 4500 "221223 2022 eng " 2549-0885 1858-4748 dc Amanina, Farha Tsabita Departemen Sumberdaya Akuatik, Universitas Diponegoro, Jl. Prof. Sudaarto, SH, Tembalang, Semarang, Indonesia 50275 Muskananfola, Max Rudolf Ayuningrum, Diah Limbah pada sedimen tambak bandeng berupa bahan organik, bersumber dari sisa pakan dan hasil metabolisme. Limbah ini mengandung protein yang tinggi, apabila tidak diproses dengan baik dapat mencemari lingkungan perairan. Aktinomisetes merupakan organisme tanah yang memiliki peran penting dalam proses dekomposisi bahan organik dengan bantuan enzim. Penelitian ini bertujuan untuk mengisolasi aktinomisetes yang mampu menghasilkan enzim protease. Jenis penelitian yang dilakukan yaitu deskriptif eksploratif. Sampel sedimen diambil dari dasar tambak ikan bandeng Kecamatan Tugu, Semarang pada 2 titik outlet tambak dengan metode coring modifikasi. Proses isolasi dilakukan menggunakan media IM5, IM6, IM7 dan IM8 dengan metode pour plate, sedangkan purifikasi dengan media IM6 dan IM8 menggunakan metode streak plate. Isolat diskrining dengan media spesifik Skim Milk Agar untuk melihat zona hambat di sekitar koloni sehingga diketahui Indeks Proteolitik (IP). Sebanyak 11 dari 17 isolat aktinomisetes mampu memproduksi enzim protease, tiga isolat berasal dari media IM6 dan 8 isolat dari media IM8. Diperoleh tiga isolat dengan kemampuan paling baik dalam menghasilkan enzim protease dengan nilai IP diatas 1,5, yaitu isolat VTB 1.1, VTB 1.2 dan YTB 1.2. Penelitian lanjutan perlu dilakukan untuk membuktikan bahwa ketiga isolat tersebut mampu menjadi agen pendekomposisi kandungan protein berlebih pada sedimen tambak. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-02-10 02:56:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/43648 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 4 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33144 2021-05-27T19:21:40Z saintek:RSA

nmb a2200000Iu 4500 "200830 2020 eng " 2549-0885 1858-4748 dc Sarjito, Sarjito Diponegoro University Zulaekah, Fifiana Haditomo, Alfabetian Condro Desrina, Desrina Ariyati, Restiana Wisnu Prayitno, Slamet Budi Ikan mas banyak dibudidayakan dan memiliki nilai ekonomis penting. Serangan penyakit bercak merah (Motile Aeromonas Septicemia)   masih merupakan kendala dalam budidaya ikan tersebut.  Penyakit ini disebabkan oleh bakteri genus Aeromonas, antara lain  Aeromonas hydrophila.  Untuk mengatasi infeksi bakteri tersebut dimungkinkan untuk menggunakan bahan herbal.  Kulit batang kelor merupakan bahan herbal yang berpotensi sebagai antibakteri.  Tujuan dari penelitian ini adalah mengkaji pengaruh  ekstrak kulit batang kelor terhadap status kesehatan dan kelulushidupan  ikan mas yang diinfeksi  A. hydrophila.   Ikan uji  yang digunakan adalah 120 ekor dengan rata-rata bobot 13,58 ± 2,83 g dan rata - rata panjang 9,93± 0,72 cm yang di infeksi A. hydrophila sebanyak 0,1 mL secara intramuscular dengan kepadatan bakteri 107 CFU/mL. Penelitian ini menggunakan metode eksperimental dengan rancangan acak lengkap 4 perlakuan 3 ulangan. Perlakuan yang diberikan adalah perendaman ekstrak kulit batang kelor dengan konsentrasi 0 mg/L ( perlakuan A), 1000 mg/L (perlakuan B ), 2000 mg/L (perlakuan C ) dan 3000 mg/L (perlakuan D).  Metode perendaman yang digunakan adalah  long bath selama 2 jam.  Perendaman dilakukan setelah gejala klinis dari infeksi A. hydrophila muncul.  Data status kesehatan yang diamati meliputi kelulushidupan, eritrosit, leukosit dan hematokrit. Hasil penelitian menunjukkan bahwa perendaman ekstrak kulit batang kelor berpengaruh nyata terhadap kelulushidupan,  eritrosit, leukosit dan hemoglobin  ikan mas (P<0,05), tetapi tidak berpengaruh pada hematokrit (p>0.05).  Kosentrasi  ekstrak kulit batang kelor  1000 - 3000 mg/L dapat digunakan untuk mengobati ikan mas yang terinfeksi bakteri A. hydrophila. Kelulushidupan tertinggi  83,3± 5,77% dicapai pada perendaman 3000 mg/L. Oleh karena itu perendaman ekstrak kulit batang kelor dengan konsentrasi ini dapat digunakan untuk meningkatkan kelulushidupan  ikan mas yang terinfeksi A.hydrophila.   Carp is a  freshwater fish with high economic value that is commonly cultivated. One of the constraints in the cultivation is disease outbreaks cause by Aeromonas hidrophila. Moringa is a plant that has a potential antibacterial agent. Its skin stem can be used as antibacterial agent for Aeromonas hydrophila. This research was aimed to observe the performance of moringa skin stem extract to infected carps according to their survival rate and blood profile. Randomized experimental design was implemented to 120 fishes with average weight 13.59 ± 2.83 g and treated in 4 treatments and 3 replicates. The moringa skin stem extract were A (0 mg / L), B (1000 mg / L), C (2000 mg / L) and D (3000 mg /L) and immersed for 2 hours. Experimental carps were infected with 0.1 mL A. hidrophila at concentration of 107 CFU/mL pour to treatment until appeared clinical sign. The result showed that moringa stem skin extract immersion significantly (P<0.05) improved the survival rate and blood profile, such as leucocytes of experimental carps. The moringa skin stem extract at 1000 mg/L demonstrated the best performance on the survival rate of infected experimental carps (83,3± 5,77%)   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33144 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN ind Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8120 2015-06-29T15:50:23Z saintek:RSA

nmb a2200000Iu 4500 "140225 2014 eng " 2549-0885 1858-4748 dc STRUKTUR UKURAN DAN JUMLAH TANGKAPAN TUNA MADIDIHANG MENURUT WAKTU PENANGKAPAN DAN KEDALAMAN DI PERAIRAN MAJENE SELAT MAKASSAR (Structure Size and Number of Catches According from Yellow fin (Thunnus Albacares) to Time and Depth in Makassar Strait) Kantun, Wayan Sekolah Tinggi Teknologi Kelautan Balik Diwa Makassar Mallawa, Achmar Fakultas Ilmu Kelautan dan Perikanan Universitas Hasanuddin Rapi, Nuraeni L Sekolah Tinggi Teknologi Kelautan Balik Diwa Makassar Ikan tuna madidihang di perairan Majene telah dimanfaatkan oleh nelayan sejak lama dengan menggunakan alat tangkap pukat cincin dan pancing ulur sehingga diduga telah terjadi pemanfaatan berlebihan dan penurunan populasi. Penelitian ini bertujuan untuk menganalisis struktur ukuran tuna madidihang menurut waktu dan kedalaman.  Data yang digunakan berupa data primer seperti ukuran ikan, waktu penangkapan dan kedalaman (panjang tali pancing ulur). Data primer diperoleh melalui pengukuran langsung di lapangan.  Data dianalisis secara deskriptif melalui perbandingan histogram dan uji t – student serta ANOVA. Hasil penelitian menjelaskan bahwa (1) Struktur ukuran (panjang dan bobot) ikan Tuna Madidihang yang tertangkap berdasarkan waktu harian pada waktu pagi dan sore hari tidak berbeda, (2) Struktur ukuran (panjang dan bobot) ikan Tuna Madidihang, yang tertangkap di sore hari lebih luas dibanding yang tertangkap di pagi hari, (3) Struktur ukuran (panjang dan bobot) ikan Tuna Madidihang berdasarkan waktu bulanan berbeda nyata antara yang tertangkap pada sore hari dengan pagi hari, (4) Pada kedalaman 30-40 m ikan-ikan yang tertangkap pada umumnya berukuran 25-145 cm, sedangkan yang tertangkap ≥ 50 m pada umumnya adalah ukuran layak tangkap (minimal sudah pernah mijah sekali dengan ukuran yang lebih besar. Kata kunci : Tuna madidihang, struktur ukuran, waktu penangkapan, kedalaman, pancing ulur, Selat Makassar   Yellowfin in the waters of Majene has long been used by fishermen using purse seine and handline fishing gear that are estimated to have occurred over exploitation and population decline. This study aims to analyze the structure of yellowfin size according to time and depth. The data used in the form of primary data such as fish size, time of fishing and depth (length line of handline). Primary data was obtained through direct measurements in the field. Data were analyzed descriptively by comparing histograms and t-test - Student and ANOVA. The results of the study explained that (1) Structure size (length and weight) of fish caught yellowfin based on the time of day in the morning and the afternoon is no different, (2) Structure size (length and weight) yellowfin, which is caught in the afternoon higher than that captured in the morning, (3) Structure size (length and weight) yellowfin significantly different based on a monthly time between being caught in the afternoon to the morning, (4) at a depth of 30-40 m fish caught on generally measure 25-145 cm, while the captured ≥ 50 m in general is catching decent size (ever spawn) with a larger size. Key words: yellowfin, structure size, time of fishing, depth, handline, Makassar Strait Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 13:33:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8120 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 2 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2063 2020-12-07T08:06:49Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Toxicity of Extract Tobacco Leaves to The growth of Oreochromis niloticus Rudiyanti, Siti Program Studi Pemanfaatan Sumberdaya Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Tobacco can be used as natural pesticide since it contained high concentration of nicotine that may killed pest and fish diseases. This work aimed to know the influence and inhibiting concentration of tobacco leaves extract to the growth of Tilapia. The research was conducted on March to May 2007 at laboratory of Satker PBIAT Ngrajek, Magelang. Fish fry used were in between 1,74±0,105 g with the density of 10 were tested in 20 L fresh water, were tested using several concentration of tobacco leaves extract. Sub lethal toxicity tested in the laboratory using complete random design for 28 days. The result showed that LC50 -96 hours is 22,492 mg/L. It is shown that extract of tobacco leaves has a significant influence to the fish growth. The highest absolute biomass growth is at treatment  K (3,72 g), followed by treatment  A (3,29 g), B (2,96 g), C (2,75 g), and D (2,24 g). Whereas the highest daily growth rate is also at treatment K (3,93 %), followed by A (3,75 %), B (3,59  %), C (3,45 %), and D (3,06 %). The inhibiting concentration (IC 50) is 15,733 mg/L. Water quality during the experiment indicated a suitable condition for fish life medium.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Key Words : Extract of tobacco leaves, Tilapia fry, Growth Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2063 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49467 2025-04-15T07:39:12Z saintek:RSA

nmb a2200000Iu 4500 "230831 2023 eng " 2549-0885 1858-4748 dc Fitriliyani, Indira Fitriliyani Department Of Aquaculture Fisheries and Marine Faculty University Of Lambung Mangkurat, south Borneo Indonesia The development of Kissing gourami culture is experiencing problems due to the non-optimal development of the gonads and the low quality of the larvae. This study aims to determine the dose of Vitamin E in commercial feed containing glutathione which is optimal for the liver and gonads of Kissing gourami and to determine the histology of the liver and gonads of Kissing gourami. This research was conducted in Puja Kesuma Swimming Pool, Sipai River Irrigation, Martapura District, Banjar Regency, South Kalimantan Province with a maintenance time of ± 5 weeks. The design used in this study was a completely randomized design (CRD) with 4 treatments and 3 replications with the following treatments: A Commercial Feed + containing glutathione 10 mg/kg (CFG); B; CFG + (300 mg/Kg Vitamin E), C; CFG + (500 mg/Kg Vitamin E), D; CFG+ (700 mg/Kg Vitamin E). The results showed that the administration of vitamin E had no significant effect on the parameters of IHS, IGS, egg diameter, and fecundity, whereas in the observation of liver histology, cells with necrosis and gonadal histology at a dose of 700 mg/kg were found to be dominant in stage IV eggs ready for Geminal Vesicle Break Down (GVBD). So, it can be concluded that the combination of Glutathione with vitamin E at a dose of 700 mg/kg of feed is the best. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-08-31 14:43:36 https://ejournal.undip.ac.id/index.php/saintek/article/view/49467 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 2 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/27804 2022-04-19T17:30:04Z saintek:RSA

nmb a2200000Iu 4500 "201225 2020 eng " 2549-0885 1858-4748 dc Nuryadi, Ahmad muhlis University of Muhammadiyah Kendari https://www.umkendari.ac.id/ Sara, La Rianda, La Bafadal, Azhar Husen, Suharta Amijaya Hamka, Eddy Pelaksanaan penelitian ini dilatarbelakangi oleh adanya realitas pada kawasan pesisir Provinsi Sulawesi Tenggara terkhusus pada usaha rumput laut, dimana hasil produksi rumput lautnya masih dipasarkan dalam bentuk mentah atau bentuk kering sehingga tidak memiliki nilai tambah. Untuk itu pendirian suatu agroindustri rumput laut harus dipertimbangkan dan direncanakan dengan baik. Salah satu aspek yang memerlukan perhatian adalah pemilihan lokasi yang tepat untuk pendirian agroindustri. Penelitian ini bertujuan untuk menentukan prioritas kriteria penentuan lokasi dan menganalisis lokasi strategis untuk pendirian agroindustri rumput laut di Provinsi Sulawesi Tenggara. Penelitian dilakukan dengan menggunakan metode survey pakar, dimana responden pakar meliputi pelaku usaha agroindustri rumput laut, pakar dari Dinas Kelautan dan Perikanan, Dinas Perdagangan dan Perindustrian serta akademisi. Data dianalisis menggunakan Metode Perbandingan Eksponensial (MPE). Hasil penelitian menunjukkan bahwa prioritas kriteria penentuan lokasi yang strategis dalam pendirian agroindustri rumput laut di Provinsi Sulawesi Tenggara secara berurutan adalah ketersediaan bahan baku, air tawar, infrastruktur dan kemudahan aksesibilitas. Berdasarkan kriteria tersebut selanjutnya didapatkan alternatif lokasi paling strategis untuk pendirian agroindustri rumput laut di Provinsi Sulawesi Tenggara yaitu Kabupaten Konawe Selatan sebagai prioritas pertama, Kabupaten Buton prioritas kedua, Kabupaten Kolaka prioritas ketiga, Kota Bau-Bau prioritas keempat dan Kabupaten Bombana prioritas kelima. This research was motivated by the reality that in the coastal region of Southeast Sulawesi Province, especially in the seaweed business. Seaweed production in the Southeast Sulawesi Province mostly marketed in raw or dry form, so has no added value. Therefore, establishing a seaweed agro-industry should be considered and be prepared properly. One aspect that requires attention is selection of seaweed agro-industrial location. This study aims to determine criteria priority of seaweed agroindustry location and to analyze  strategic location of seaweed agro-industries in the Southeast Sulawesi Province. This study used an expert survey method in which the expert respondents include business actors on seaweed agroindustry, officers of Fisheries and Marine affairs Industry and Trade affairs as well as academician. Data were analyzed using Exponential Comparison Method. The results showed that criteria priority for location of seaweed agro-industries sequentially were availability of raw materials, fresh water, infrastructure and accessibility. Based on these criteria, several regencies were then prioritized as the strategic location for the seaweed agroindustry in Southeast Sulawesi Province namely Konawe Selatan Regency as the first priority, Buton Regency as the second priority, Kolaka Regency as the third priority, Bau-Bau City as the fourth priority and Bombana Regency as the fifth priority. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/27804 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9325 2015-10-27T10:00:51Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc KARAKTERISTIK KULIT SAMAK IKAN NILA (Oreochromis niloticus) DENGAN PENAMBAHAN BATING AGENT ALAMI DARI PANKREAS SAPI (Characteristics of Tilapia Fish Leather with Natural Bating Agent from Bovine Pancreatic) Farid, Ahmad Jauharul Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Riyadi, Putut Har Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Amalia, Ulfah Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang ABSTRAK   Bating atau pembuangan protein merupakan salah satu tahapan dari proses penyamakan dimana bating bertujuan untuk menghilangkan protein non kolagen (elastin, globular dan epidermis) yang tidak dibutuhkan oleh kulit dalam proses penyamakan. Beberapa bating agent alami yang dapat digunakan pada proses penyamakan kulit yaitu enzim papain, ragi tempe, nanas dan pankreas sebagai pengganti bating agent oropon yang mahal dan masih impor. Penelitian ini menggunakan pankreas sapi yang menghasilkan enzim proteolitik berfungsi menghidrolisis protein non kolagen. Tujuan dari penelitian ini adalah untuk mengetahui konsentrasi yang sesuai dalam pembuatan bating agent dan mengetahui pengaruh lama perendaman bating agent pankreas sapi terhadap kualitas dari kulit ikan nila samak. Parameter pengujian adalah kemuluran, kekuatan sobek, kekuatan tarik dan kadar krom oksida. Penelitian menggunakan desain percobaan Rancangan Acak Lengkap (RAL) satu faktor yaitu lama perendaman (20, 40, 60, dan 80 menit) dan 3 kali pengulangan. Hasil penelitian menunjukkan bahwa konsentrasi bating agent alami 1% dengan lama perendaman 60 menit berpengaruh nyata terhadap kulit samak ikan nila yang dihasilkan yaitu kekuatan tarik sebesar 1.805,20 N/cm2, kemuluran 71,37%, kekuatan sobek  371,02 N/cm2 dan kadar krom oksida 3,66%. Kata kunci : bating agent, pankreas sapi, karakteristik, kulit ikan nila samak   Bating or disposal protein is one of the stages of the tanning process which aims to eliminate protein bating non-collagen which is not needed by the leather in the tanning process. Some bating natural agent that can be used in the tanning process, the enzyme papain, tempe, pineapple and pancreas instead of bating agent oropon expensive and still imported. This research used bovine pancreatic proteolytic enzymes that can hydrolyzes non-collagen proteins. The purpose of this study was to determine the appropriate concentration bating agent in the manufacture and the effect of soaking time bovine pancreatic bating agent on the quality of tilapia fish skin leather. Parameter testing is elongation, tear strength, tensile strength and levels of chromium oxide. Research using experimental designs completely randomized design (CRD) one factor was the soaking time (20, 40, 60, and 80 minutes) with three replications. The results showed the 1% concentration of bating agent with 60 minutes soaking affects tilapia fish leather were 1.805,20 N/cm2 of tensile strength, 71,37% of elongation, 371,02 N/cm2 of tear strength and 3,66% of chromium oxide content.   Keywords : material bating, bovine pancreas, characteristics, tilapia fish leather   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9325 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2764 2020-09-17T10:49:07Z saintek:RSA

nmb a2200000Iu 4500 "100813 2010 eng " 2549-0885 1858-4748 dc Tidal Effect on Recruitment East Larvae Fish In East Pelawangan Segara Anakan Cilacap Subiyanto, Subiyanto Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Widyorini, Niniek Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Iswahyuni, Iswahyuni Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Observations on transport of fish larvae during low tide in the East Sea has been done Pelawangan interest from July to September 2003. Sampling is performed using Plankton nets 60 cm in diameter and 200 mesh size, as many as 5 times in the full month, either at the time of high tide or low tide. Net withdrawals are carried out for 10 minutes at 2 knots. During studies have arrested 904 individual which consist of 11 families, there are Clupeidae, Engraulididae, Belonidae, Hemiramphidae, Atherinidae, Mugillidae, Ambassidae, Apogonidae, Gerreidae, Pomacentridae, Gobiidae. Most fish larvae are caught fish larvae, adult stage in the sea. Observations show that the influence of tidal changes of fish larvae in the East Pelawangan. Where the tide arrested 472 people (52.21%) and at low tide arrested 432 people (47.79%).   Key words : Tidal, Recruitment, Fish larvae Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 09:56:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2764 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 1 (2009): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/49518 2025-04-15T08:33:17Z saintek:RSA

nmb a2200000Iu 4500 "240429 2024 eng " 2549-0885 1858-4748 dc Control of Ice-Ice Disease and Growth in Farming Red Algae Kappaphycus alvarezii (Doty) Doty through the Application of Diversification Method Tisera, Wilson Lodewyk Faculty of Fisheries and Marine Science. Universitas Kristen Artha Wacana. Jl. Adisucipto. Oesapa. Kupang. NTT ice-ice disease; growth; Kappaphycus alvarezii; diversification; Sulamu Waters The farming of red algae Kappaphycus alvarezii (trade name Eucheuma cottonii) has grown rapidly in East Nusa Tenggara since 1999, which has contributed significantly to increasing the income of the communities and region. The biggest problem faced since a decade ago is the ice-ice disease phenomenon which attacks the farming of K. alvarezii, reducing production, and the farmer's income drastically. This experimental study aimed to minimize the ice-ice disease infestation in the farming of K. alvarezii through the application of diversification methods. This research was conducted in the farming area of K. alvarezii in Sulamu Waters from July-September 2020.  An experimental method was tested in order to minimize ice-ce disease infestation. As a treatment, three longline nylon ropes were used with three replicates. The first line was placed by Gracilaria sp seeds; the second line by K. alvarezii seeds; while the third line by Sargassum polycystum seeds. The conventional farming method carried out by local farmers was used as control.  The parameters tested were disease incidence and intensity as well as growth rate.  The result showed that both treatment and control showed infestation of ice-ice disease. Farming with treatment using Gracilaria sp. and Sargassum polycistum gave better resistance to ice-ice disease compared to the one without (control). The treatment showed less incidence (12-38%), and intensity (0.05-0.435) of ice-ice disease compared to the control, 30-45% and 2,1-17,19% respectively. The contrary happened related to the growth rate. The control showed better daily growth (mean 4.74%) compared to the treatment (mean 4.70%). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49518 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/29866 2021-11-30T11:46:09Z saintek:RSA

nmb a2200000Iu 4500 "210828 2021 eng " 2549-0885 1858-4748 dc Imron, Mohammad IPB University https://orcid.org/0000-0002-4646-3073 Baskoro, Mulyono S Prima, Djodie Rizky Suherman, Agus Semenjak pelarangan pengoperasian alat tangkap trawl yang disertai terbitnya Peraturan Menteri Kelautan dan Perikanan Nomor 02 Tahun 2015 tentang larangan penggunaan alat penangkapan ikan pukat hela (trawls) dan pukat tarik (seine nets) di wilayah pengelolaan perikanan Negara Republik Indonesia, penggunaan alat tangkap cantrang mulai berkembang sebagai alat tangkap alternatif pengganti trawl. Penelitian ini bertujuan mengidentifikasi komposisi hasil tangkapan utama serta hasil tangkapan sampingan alat tangkap cantrang dan mengidentifikasi pola musim hasil tangkapan cantrang. Penelitian ini dilakukan dengan menggunakan metode survei. Survei yang termasuk kedalam metode deskriptif. Komposisi hasil tangkapan dikategorikan ke dalam dua kelompok yaitu hasil tangkapan utama dan sampingan, kemudian dianalisis secara diskriptif. Pola musim penangkapan ikan dapat ditentukan berdasarkan data hasil tangkapan per upaya penangkapan. Berdasarkan hasil penelitian didapatkan informasi bahwa perbandingan antara hasil tangkapan utama dan sampingan yaitu 30,8% dan 69,5% dari total berat keseluruhan sebesar 312.857.172 kg. Untuk Pola musim penangkapan ikan yang didaratkan di Pelabuhan Perikanan Pantai Tegalsari terjadi pada bulan Agustus, September, November, Desember, Februari, Maret, dan Mei dan mencapai puncaknya terjadi pada bulan Februari. Puncak musim perjenis ikan yang dominan tertangkap adalah cumi-cumi (pada bulan Februari), ikan pari (pada bulan Agustus), ikan kapasan (pada bulan Mei), ikan kuniran (pada bulan Desember), ikan swanggi (pada bulan Februari) dan ikan kurisi (pada bulan Agustus).   Since the prohibition of trawling fishing gear operations accompanied by the issuance of the Minister of Maritime Affairs and Fisheries Regulation No. 02 of 2015 concerning the prohibition of the use of trawls and seine nets in the territory of the Republic of Indonesia fisheries, the use of cantrang fishing gear began to develop as an alternative fishing tool in place of trawling. This study aims to identify the composition of the main catch and bycatch of cantrang fishing gear and identify the season pattern of cantrang catches. This research was conducted using survey methods. The survey included in the descriptive method. The composition of the catch is categorized into two groups namely the main catch and the bycatch, then analyzed descriptively. The pattern of fishing season can be determined based on the catch data per fishing effort. Based on the research results obtained information that the ratio between the main catch and the bycatch is 30.8% and 69.5% of the total weight of 312,857,172 kg. The fishing season pattern landed at the Tegalsari Beach Fishery Port occurred in August, September, November, December, February, March, and May and reached its peak in February. The peak season for the dominant types of fish caught are squid (in February), stingrays (in August), common silver-biddy (in May), goatfish (in December), spotted big-eye (in February) and Japanese threadfin bream (in August). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/29866 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/69557 2025-04-15T08:15:44Z saintek:RSA

nmb a2200000Iu 4500 "241027 2024 eng " 2549-0885 1858-4748 dc BIOLOGICAL ASPECT AND ABUNDANCE OF TRITON EPAULETTE SHARK (Hemiscyllium henryi) ENDEMIC TO TRITON BAY, KAIMANA, WEST PAPUA Prehadi, Prehadi Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Kintani, Novia Indah Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Sombo, Hendrik Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Fahlevi, Arief Reza Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Junaedy, Ahmad Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Muttaqin, Ahmad Sabilul Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Raweyai, Oktofianus Obaja Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Kusumarani, Dheni Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Raunsai, Jhoni Elias Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Fenetiruma, Syamsudin 2 Regional Technical Implementation Unit of Kaimana Conservation Area Management Malaihollo, Jantje Jacobus Kaimana Conservation Activist Herettrenggi, Rosa Directorate of Marine Spatial Planning, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Widiarto, Santoso Budi Serang Coastal and Marine Resources Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia Subhan, Beginer Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB Ayuningrum, Diah Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Diponegoro University Density; Epaulette Shark; H. henryi; Kaimana; Triton Bay Walking shark is one of elasmobranch that has been protected by the government of the Republic of Indonesia and can be found in the eastern seawaters of Indonesia. There are six species of walking shark, one of it is Triton Bay Epaulette Shark (Hemiscyllium henryi) which is endemic to the coastal waters of Kaimana. There are still lack of information regarding biology abundance and population of H. henryi, therefore it is necessary to do a study related to this species. This study aims to determine individual information and abundance of H. Henryi in Kaimana coastal waters during the observation in 2022 and 2023 based on density value and potential area. The method used is a census based on the Global Positioning System, through snorkeling and walking along the coastline, as well as observations of total length, wet weight, and sex in H. henryi which encountered during census. The total census track is 5.783 meters with a sweep of 2,46 Ha monitoring area. The density or abundance of H. henryi in 2022 is 1,2 ind/Ha and in 2023 is 2,4 ind/Ha. Total length of H. henryi ranged between 55–88 cm (Mean 70,6 cm ± SD 12,29). The length and weight relationship obtained W=0,0004L3,4343 with R2 value of 0,9526. The abundance trend of H. henryi at the coastal waters of Kaimana in the last two years has multipled by 2 times based on density value determining after being designated as a fully protected fish species. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-11 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/69557 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 3 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/10564 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150828 2015 eng " 2549-0885 1858-4748 dc EFISIENSI PRODUKSI RUMPUT LAUT E. cotonii DENGAN METODE BUDIDAYA LONG LINE VERTIKAL SEBAGAI ALTERNATIF PEMANFAATAN KOLOM AIR Widowati, Lestari Lakhsmi Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rejeki, Sri Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Yuniarti, Tristiana Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ariyati, Restiana Wisnu Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK   Kualitas dan kuantitas rumput laut yang baik dan berkelanjutan merupakan hal yang masih menjadi tantangan bagi usaha budidaya. Metode budidaya danlama pemeliharaan yang tepat diharapkan dapat menjadi salah satu solusi untuk menghasilkan kuantitas dan kualitas budidaya yang berkelanjutan.Metode long line vertikal diterapkan untuk mengetahui kolom air yang dapat digunakan untuk pertumbuhan optimum rumput laut. Kualitas terbaik kandungan karaginan dilihat dari lama pemeliharaan. Tujuan penelitian adalah (1) Mengetahui interaksi lama pemeliharaan  dan  kedalaman terhadap produksi biomassa dan kualitas rumput laut. (2) Mengetahui lama pemeliharaan  dan  kedalaman yang terbaik terhadap produksi biomassa dan kualitas rumput laut. (3) Mengetahui kedalaman kolom air yang masih menghasilkan pertumbuhan rumput laut secara optimal. Penelitian dilakukan di perairan laut Pulau Pasir Kabupaten Brebes dengan lama pemeliharaan 45 hari dan 60 hari, serta 3 perlakuan pada kedalaman 30 cm, 60 cm, dan 90cm. Masing-masing perlakuan diulang 3 kali. Rancangan penelitian yang digunakan adalah rancangan faktorial 2 x 3. Variabel yang diamati adalah laju pertumbuhan dan kandungan karaginan.Hasil yang didapatkan yaitu laju pertumbuhan selama 45 hari pada kedalaman 30 cm, 60 cm dan 90 cm berturut-turut adalah 117%, 158%, 111%, dan pada pemeliharaan selama 60 hari adalah 198%, 182% dan 136%. Pada pemeliharaan 45 hari laju pertumbuhan harian pada kedalaman 30 cm, 60 cm dan 90 cm berturut-turut adalah 2,26%/hari, 2,10%/hari dan 1,66%/hari, dan pada pemeliharaan 60 hari adalah 1,82%/hari, 1,73%/hari dan 1,43%/hari. Dari segi kualitas dilihat pada kandungan karaginan menghasilkan rata-rata karaginan 76,3% pada pemeliharaan 45 hari dan 96,3% pada pemeliharaan selama 60 hari. Kesimpulan yang diambil alah bahwa (1) Kedalaman dan lama pemeliharaan  memberikan pengaruh terhadap produksi biomassa dan kandungan karaginan rumput laut. (2) Produksi biomassa tertinggi dihasilkan pada pemeliharaan selama 45 hari pada kedalaman 30 cm dengan pertumbuhan harian 2,26 %/hari dan kedalaman 60 cm  dengan laju pertumbuhan 2,10 %/hari. Kandungan karaginan rata-rata sebesar 96,3% didapatkan pada pemeliharaan selama 60 hari. (3) Kedalaman optimal untuk pemeliharaan rumput laut dengan metode longline vertikal adalah sampai dengan 60cm.   Kata kunci : long line vertikal, E. cottoni, karaginan   ABSTRACT   Good quality, quantity and sustainable still a challenge for aquaculture. The right method and duration of cultivation is expected to be one of the solutions to produce a sustainable quantity and quality of seaweed culture. Long line vertical method is applied to find out the column of water that can be used for optimum growth of seaweed. The best quality of carrageenan content was observed in duration of cultivation. The purpose of the study was (1) To find out the interaction between duration of cultivation and depth for the production of biomass and quality of seaweed. (2) To know the best duration of cultivation and depth for production of biomass and quality of seaweed. (3) To find out the depth of the water column which still produces the growth of seaweed optimally. Research conducted in sea water at Pulau Pasir, Brebes Regency with duration of cultivation were 45 days and 60 days, with 3 treatments at thedepth of 30cm, 60cm, and 90cm . Each treatment was repeated three times. The research used 3 x 2 factorial design. The observed variablewere growth rate and carrageenan content. The results are obtained, relative growth rate for 45 days at a depth of 30 cm, 60 cm and 90 cm was 117%, 170%, 110%, and for duration of cultivation  60 days was 187%, 185% and 136%. In 45 days duration of cultivation, the  of specific growth rate at depth of 30 cm, 60 cm and 90 cm was 2.26%/day, 2.10%/day and 1.66%/day, and on duration of cultivation 60 days is 1.82%/day, 1.73% and 1.43%/day. In terms of the quality of seaweed the average of karaginan content was 76.3% in 45 days duration of cultivation  and 96.3% on 60 days duration of cultivation . The conclusions were (1) The depth and period of cultivation influence the production of biomass and karaginan content of seaweed. (2 The highest biomass production on 45 days period of cultivation at a depth of 30 cm with specific growth rate of 2.26%/day and in depth of 60 cm with specific growth rate of 2.10%/day The content of carageenan an average of 96.3% obtained on maintenance for 60 days. Optimal depth for the maintenance of seaweed with vertical longline method is up to 60 cm.  Keywords : long line vertikal, E. cottoni, karaginan  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/10564 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49484 2025-04-15T07:39:12Z saintek:RSA

nmb a2200000Iu 4500 "230831 2023 eng " 2549-0885 1858-4748 dc Asni, Asni - Program Studi Ilmu Perikanan Fakultas Pertanian, Perikanan dan PeternakanUniversitas Sembilanbellas November Kolaka Rahim, Rahim Landu, Anti Asmono, Bambang Udang vaname (Litopenaeus vannamei) merupakan produk perikanan yang memiliki nilai ekonomis tinggi. Namun dalam pengembangannya, banyak hal menjadi faktor penghambat untuk meningkatkan jumlah produksi udang  yaitu, menjaga kualitas air tetap optimal  dan  menekan laju  pertumbuhan bakteri Vibrio sp. selama pemeliharaan. Salah satu sistem budidaya efektif yang dikembangkan untuk meningkatkan produksi melalui sistem budidaya berbasis teknologi yaitu  sistem bioflok atau Bio Flok Tecnology (BFT).  Penelitian ini bertujuan untuk mengetahui kinerja dari sistem bioflok dengan pemberian sumber karbon yang berbeda terhadap perkembangan bakteri Vibrio sp. pada budidaya udang vaname. Penelitian ini  menggunakan rancangan acak lengkap  terdiri dari 3 perlakuan  3 ulangan. Perlakuan A : Bioflok tanpa penambahan karbon, B : Bioflok dengan penambahan molase,  C : Bioflok dengan penambahan tepung tapioka. Hewan uji yang digunakan yaitu udang vaname PL 10 dengan padat tebar 200 ekor/wadah. Parameter pengamatan yaitu kepadatan bakteri Vibrio sp., kepadatan flok, kelangsungan hidup, pertumbuhan berat mutlak, laju pertumbuhan spesifik, rasio konversi pakan, dan N anorganik (TAN dan nitrit). Untuk mengetahui pengaruh perlakuan, data dianalisis menggunakan ANOVA dengan uji lanjut BNT. Berdasarkan hasil penelitian menunjukkan bahwa kepadatan bakteri Vibrio sp. terendah pada perlakuan B,  C dan A. Penambahan molase memberikan hasil yang lebih baik dalam mengontrol pertumbuhan jumlah bakteri Vibrio sp. dan  menjaga kualitas air terutama pada kandungan amonia dan nitrit, tetapi tidak berpengaruh signifikan terhadap kelangsungan hidup dan rasio konversi pakan namun berpengaruh signifikan terhadap pertumbuhan berat mutlak dan laju pertumbuhan spesifik udang vaname   Vannamei shrimp (Litopenaeus vannamei) is an aquacultur product that has  sa high economic value. However, in its development, many things become inhibiting factors to increase shrimp production, namely, maintaining optimal water quality and suppressing the growth rate of Vibrio sp bacteria during maintenance. One of the effective cultivation systems developed to increase production through technology-based cultivation systems is the biofloc system or Bio Floc Technology (BFT). This study aims to determine the performance of the biofloc system by providing different carbon sources on the development of Vibrio sp. bacteria in vaname shrimp culture. This study used a completely randomized design consisting of 3 treatments and 3 replications. Treatment A : Biofloc without adding carbon, B : Biofloc with the addition of molasses, C : Biofloc with the addition of tapioca flour. The test animals used were PL 10 vaname shrimp with a stocking density of 200 fish/container. Parameters observed were Vibrio sp. bacterial density, floc density, survival, absolute weight growth, specific growth rate, feed conversion ratio, and inorganic N (TAN and nitrite). To determine the effect of treatment, the data were analyzed using ANOVA with further BNT test. Based on the results of the study showed that the low density of Vibrio sp. bacteria was in treatment B, C and  A. The addition of molasses gave better results in controlling the growth of the number of Vibrio sp. bacteria and maintaining water quality, especially on the content of ammonia and nitrite, but had no significant effect on survival and feed conversion ratio but had a significant effect on absolute weight growth and specific growth rate of white vaname shrimp. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-08-31 14:43:36 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49484 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 2 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/43048 2021-12-03T00:57:43Z saintek:RSA

nmb a2200000Iu 4500 "211022 2021 eng " 2549-0885 1858-4748 dc THE EFFECT OF DIFFERENCES IN ARTIFICIAL BAIT COLOR AND SOAKING TIME IN HAND-LINE FISHING GEAR ON TUNAS (E. afinnis) IN SENDANG BIRU WATERS, MALANG, INDONESIA Febrita, Nadia Elis Capture Fisheries Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Fitri, Aristi Dian Purnama Capture Fisheries Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Prihantoko, Kukuh Eko Capture Fisheries Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro artificial bait color; soaking; E. afinnis; Sendang Biru. Hand-line fishing gear is traditionally used by fishermen in Sendang Biru, Malang, Indonesia to catch Euthynnus affinis. Therefore, this study aims to analyze the color differences of the artificial bait and soak time of E. afinnis's catch. The study was conducted in the waters of Sendang Biru, Malang, Indonesia from July to August 2019, with the experimental fishing method by comparing the artificial bait color variables (white, red, blue, and gray) and soaking time (2 and 20 minutes). The results showed that the artificial red bait color gave the most catches and was affected by the soaking time (with a significant level of 0.05). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/43048 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/68876 2025-04-25T14:22:56Z saintek:RSA

nmb a2200000Iu 4500 "250416 2025 eng " 2549-0885 1858-4748 dc Verawati, Cornelia Novita Program Studi Magister Ilmu Lingkungan, Sekolah Pascasarjana, Universitas Diponegoro, Gedung Pascasarjana B Lt 4, Jl. Imam Bardjo, SH No. 3-5 Semarang 50241 https://orcid.org/0009-0006-6019-5104 Prastiwi, Reza Aulia Angely, Devi Raj Fadilah, Naela Mas'ud, Mochamad Lutfi Susilowati, Indah https://orcid.org/0000-0002-4956-9762 Shafika, Nur Information and Communication of Technology (ICT) telah menjadi elemen kunci dalam mendukung produktivitas dan keberlanjutan sektor perikanan, khususnya di Kawasan Bandengan, Kabupaten Kendal. Penelitian ini bertujuan untuk mengeksplorasi pemanfaatan ICT oleh nelayan modern skala kecil, termasuk aplikasi seperti WhatsApp, website BMKG, GPS, dan GPS Essential, serta mengkaji implementasi konsep blue economy dalam pengelolaan sumber daya laut secara berkelanjutan. Penelitian dilakukan menggunakan metode survei, wawancara semi-terstruktur, dan observasi untuk memahami pola adopsi teknologi, karakteristik sosial-ekonomi nelayan, dan dampaknya terhadap aktivitas perikanan. Hasil menunjukkan bahwa penggunaan ICT membantu nelayan meningkatkan efisiensi operasional, mempercepat akses informasi, dan mengoptimalkan hasil tangkapan. Teknologi seperti WhatsApp memungkinkan komunikasi yang lebih cepat antar-nelayan, website BMKG memberikan informasi cuaca yang akurat, sementara GPS dan aplikasi GPS Essential mempermudah penentuan lokasi strategis penangkapan ikan. Namun, penelitian ini juga mengidentifikasi beberapa tantangan, seperti keterbatasan pendidikan, rendahnya akses terhadap teknologi canggih, serta kendala sosial-ekonomi yang membatasi penerapan ICT secara luas. Hasil penelitian ini menunjukkan bahwa adopsi ICT tidak hanya mendukung pengelolaan sumber daya laut yang berkelanjutan tetapi juga memberikan dampak positif terhadap peningkatan kesejahteraan masyarakat pesisir.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-04-16 03:41:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/68876 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 1 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13185 2020-04-17T19:23:57Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc RESPON PERTUMBUHAN BENIH KERAPU BEBEK (Cromileptes altivelis) PADA PERLAKUAN PERBEDAAN SALINITAS MEDIA DAN PEMBERIAN BIOMAS Artemia sp. DEWASA Growth Response of Juvenile Kerapu Bebek (Cromileptes altivelis) at Treatments with Different Salinity and Adult Artemia Biomass Mudiarti, Luky Program Studi Budidaya Perairan, Fakultas Saintek, Universitas Islam Nahdlatul Ulama, Jepara Zainuddin, Muhammad Program Studi Budidaya Perairan, Fakultas Saintek, Universitas Islam Nahdlatul Ulama, Jepara Salinitas; Artemia sp; Panjang; Berat; Kerapu   Pertumbuhan Ikan Kerapu budidaya dipengaruhi oleh beberapa faktor, diantaranya adalah salinitas dan pakan. Tujuan penelitian ini adalah mengkaji pertumbuhan benih Kerapu Bebek pada perlakuan perbedaan salinitas media dan pemberian biomas Artemia sp. dewasa. Materi yang digunakan adalah benih Kerapu Bebek (C. altivelis). Penelitian dilakukan dengan metode eksperimental laboratoris dengan rancangan acak lengkap berpola faktorial (3x3). Sebagai variabel dependen penelitian pada faktor satu adalah persentase pemberian biomas Artemia sp. (150%, 200%, 250%), sedangkan faktor dua adalah salinitas media (27 ppt, 31 ppt dan 35 ppt). Sehingga terdapat 9 varian percobaan dangan masing-masing 3 ulangan. Sebagai variabel independen adalah panjang (cm) dan berat kerapu (gram). Lama pemeliharaan kerapu 60 hari. Analisis data untuk mengetahui perbedaan antar perlakuan menggunakan uji-F dengan bantuan program SPSS. Hasil analisis two way anova menunjukkan bahwa tidak terdapat interaksi antara perlakuan pemberian biomassa dan salinitas media terhadap panjang kerapu. Perlakuan biomassa memberikan pengaruh signifikan terhadap panjang relatif yaitu 74a, 98b dan 103b. Analisis regresi menunjukkan bahwa terdapat hubungan polinomial yaitu semakin tinggi pemberian Artemia sp. maka panjang relatif semakin meningkat. Analisis two way anova perlakuan salinitas memberikan pengaruh signifikan terhadap panjang relatif yaitu 85a, 98b dan 92b%. Perlakuan pemberian Artemia sp. memberikan pengaruh signifikan terhadap berat relatif yaitu 505a, 834b dan 861b%. Sedangkan perlakuan salinitas media memberikan pengaruh signifikan terhadap panjang relatif yaitu 719a, 764b dan 718a %. Analisis one way anova interaksi perlakuan menunjukkan bahwa perlakuan Artemia sp. 150% pada salinitas 31 ppt memiliki nilai berat relatif terendah yaitu 497a%, sedangkan perlakuan artemia 200% pada salinitas 31 ppt memiliki nilai berat relatif tertinggi yaitu 927d%.    Aquaculture grouper is influenced by several factors, such as salinity and feed. The purpose of this study is to assess the growth of humpback grouper seed in the treatment of salinity and biomass Artemia sp.. The material used is the humpback grouper (C. altivelis). The study was conducted with experimental laboratory method with a completely random design patterned factorial (3 x 3). As the dependent variable of research on one factor is the percentage of biomass Artemia sp. (150%, 200%, 250%), while the two factors is a salinity (27 ppt, 31 ppt and 35 ppt). So that there are nine variants with 3 replicates. As the independent variable is the length (cm) and weight of grouper (grams). The grouper culture in 60 days. Data analysis to determine differences treatments using F-test with SPSS. Two way ANOVA analysis results that there is no interaction between treatment of biomass and salinity to the length of grouper. The treatment of biomass has significant impact on the relative lengths namely 74a, 98b and 103b. Regression analysis showed that there is a polynomial relationship the higher biomass of Artemia sp. the relative length increases. Two way ANOVA analysis of salinity treatment a significant effect on the relative lengths namely 85a, 98b and 92b%. Treatment biomass Artemia sp. a significant effect on the relative weight that is 505a, 834b and 861b%. While the salinity treatments significant impact on the relative lengths of which 719a, 764b and 718a %. Analysis of the interaction one way ANOVA showed that the treatment Artemia 150% at salinity 31 ppt has the lowest value relative weight that is 497a%, while the brine treatment 200% at a salinity of 31 ppt has the highest relative weight value 927d%.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13185 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21380 2020-04-17T19:29:01Z saintek:RSA

nmb a2200000Iu 4500 "180808 2018 eng " 2549-0885 1858-4748 dc HISTOPATOLOGI INSANG, HATI DAN USUS IKAN LELE (Clarias gariepinus) DI KOTA KUPANG, NUSA TENGGARA TIMUR (Gill, Liver and Gut’s Histopathology of Catfish (Clarias gariepinus) in Kota Kupang, East West Nusa) Juanda, Shobikhuliatul Jannah Program Studi Budidaya Perikanan Jurusan Perikanan Politeknik Pertanian Negeri Kupang Edo, Sri Imelda Program Studi Budidaya Perikanan Jurusan Perikanan Politeknik Pertanian Negeri Kupang Histopatologi; Insang; Hati; Usus; Clarias gariepinus Peningkatan konsumsi ikan air tawar di Kota Kupang menstimulasi para pembudidaya ikan untuk berlomba-lomba meningkatkan produksi usahanya. Mengingat cara budidaya ikan yang dilakukan di Kota Kupang adalah dengan padat tebar tinggi dan tanpa pergantian air, maka dapat menyebabkan kualitas media air menjadi buruk karena adanya dekomposisi dari hasil sisa pakan sehingga memungkinkan perkembangbiakan mikroba patogen. Penelitian ini bertujuan untuk mengetahui gambaran histopatologi pada organ insang, hati dan usus ikan lele di Kota Kupang. Ikan lele sebanyak 100 ekor yang diambil dari Pasar Oeba kemudian diukur berat dan panjang serta diamati kondisi morfologinya. Organ insang, hati dan usus diambil dan dilakukan fiksasi menggunakan larutan formalin 4%. Preparasi histopatologi dan analisisnya dilakukan di laboratorium. Spesimen diwarnai dengan menggunakan hematoxylin dan eosin. Hasil penelitian menunjukkan adanya abnormalitas dan kerusakan jaringan pada organ-organ tersebut. Abnormalitas yang terjadi adalah adanya sungut patah, sirip dada panjang sebelah, sirip perut besar sebelah, jumlah sirip dada dan perut hanya satu, ukuran hati kecil, hati terdapat bercak kuning, hati berumbai dan pucat. Kerusakan jaringan organ  insang yang terjadi adalah telangeaktasis, nekrosis, edema, hiperplasia, perhimpitan lamela sekunder, fusi, hemoragi, kongesti dan jaringan yang lepas. Sedangkan pada hati adalah fibrosis, hemoragi, kongesti, terbentuknya vakuola-vakuola, adanya degerasi lemak, kumpulan makrofag yang ditandai dengan adanya MMC, hiperplasi, piknotik dan nekrosis. Dan pada usus adalah nekrosis, edema dan hemoragi.   The enhancement of freshwater fish consumption in Kota Kupang has stimulated fish farmer to increase their production. The cultivation’s system of fish conducted in Kota Kupang is carried out with high density and whithout water circulation wich decreases water quality caused leftover feed decomposition so as that possible to pathogenic microbes breeding. The aim of this research was observe  the description of gill, liver and gut’s histopathology of Catfish in Kota Kupang. One hundred Catfish was taken from Oeba Market which be measured the weight, length and observation of morphological condition. Gills, liver and gut was taken and fixatived with 4% of formalin. Histopathological preparation and their analysis was done in laboratory. The specimens were stained with hematoxylin and eosin. The result of this research showed abnormalities and tissue damage on the organs. The abnormalities showed the presence of flesh grows near the reproductive organ, the size of pectoral vins and ventral vins were not same, only one was pectoral vins and ventral vins, small liver, yellow liver, tassel-shaped and pale liver. The gill’s damage tissue was telangeaktasis, necrosis, edema, hyperplasia,  coincide of secondary lamela, fussion, hemorage, congestion and lifting tissue. Liver’s damage was  fibrosist, hemorage, congestion,vacuolas, fat degeneration, melano macrophages centre, hyperplasia, picnotic and necrosis. And for the gut’s damage was necrosis, edema and hemorage.hereas, R. mucronata, L. racemosa and S. caseolaris has strength relation with gastropoda T. palustris, N. planospira and M. puella. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21380 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6802 2014-05-02T12:01:33Z saintek:RSA

nmb a2200000Iu 4500 "080222 2008 eng " 2549-0885 1858-4748 dc Using the Live Food Enrichment with the Squid Egg Extract on the Quantity and Quality of Rotifer, Brachionus plicatilis O.F. Muller Suminto, Suminto Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro The Objective of the research was to know the effect of live food enrichment of rotifer with squid egg extract on the growth patterns and quality of rotifer, especially the EPA and DHA contents. The experiment method was employed in this research and it carried out in the aquaculture laboratory, Faculty of Fisheries and Marine Sciences, Diponegoro University. The research planning was a completely randomized design with five treatments and three replicates, respectively. The recording data was analyzed to get the variables of rotifer growth patterns and the most of rotifer samples were analyzed EPA and DHA contents in the chemical and biochemical laboratory center, Gajah Mada University. The results showed that the addition of squid egg extract in the culture media of rotifer was highly significant effect (p<0.01) on the specific growth rate, the maximal density, and the final density of rotifer culture. However, there was also highly significsnt effect (p<0.01) on the nutrition quality through EPA and DHA contents. To increase the quantity and quality of rotifer, B. plicatilis O.F. Muller in the culture was addition of squid egg extract of 1,2 g/1 million ind. Rotifers during twelve two hours in the rotifer culture. Key word : Rotifer, Brachionus plicatilis O.F. Muller, enrichment, quantity and quality, EPA dan DHA Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6802 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/22068 2020-04-17T19:30:22Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc ANALISIS HASIL TANGKAPAN JARING ARAD DI PANGKALAN PENDARATAN IKAN (PPI) TAMBAK LOROK, SEMARANG (Catch Analysis Of Arad Net at The Fish Landing Base Tambak Lorok, Semarang) Septiana, Eki Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Saputra, Suradi Wijaya Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ghofar, Abdul Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jaring arad; hasil tangkapan sampingan; hasil tangkapan utama; tambak lorok Jaring arad merupakan jaring penangkap udang sebagai hasil tangkapan utama dan memiliki hasil tangkapan sampingan. Tujuan penelitian ini untuk mengidentifikasi hasil tangkap utama dan hasil tangkap sampingan, mengetahui struktur ukuran tangkapan utama, spesifikasi perahu dan alat tangkap arad, serta menganalisis kelayakan usaha penangkapan. Metode yang digunakan adalah metode survei. Pengambilan sampel menggunakan sistematik sampling. Sampel udang diambil secara proporsional yaitu minimal 10% dari total hasil tangkapan. Hasil tangkap selama penelitian terdiri dari 7 spesies krustase, 3 spesies moluska, dan 10 spesies ikan. Ukuran pertama tertangkap (Lc50%)  udang krosok (M. lysianassa) adalah 9 mm, (Lc50%)  udang putih (P. merguiensis) 11 mm. Perahu arad di Tambak Lorok memiliki ukuran relatif sama yaitu 4-8 GT, kekuatan mesin 20-48 PK. Mesh size kantong 24,5 mm.  Hasil tangkapan jaring arad sebesar Rp 426.000,00  per trip, didapatkan dari keuntungan per kilo penjualan udang dan hasil tangkap sampingan. Sedangkan total biaya produksi sebesar Rp. 209.662,00, sehingga diperoleh untung per trip sebesar Rp. 216.337,00 dengan R/C ratio yaitu 2,03 yang mengartikan jaring arad layak diusahakan   Arad net is one of fishing gears to catch shrimp as the target species and bycatch. The purposes of this research were to identify the target species and bycatch, to know structure of target species, specification of  fishing boat and arad net, and to analyze the profit and loss of fishing effort. The method used was survey method. This research used systematic sampling. Shrimp samples were taken propotionally at least 10% of the total catch. The results during this research consisted of 7 species of crustacea, 3 species of molluscs, and 10 species of fishes. The size (Lc50%) of Krosok shrimp (M. lysianassa) is 9 mm and the size (Lc50%) of white shrimp (P. merguiensis) is 11 mm. Arad boat at Tambak Lorok has relatively similar size with another (4 to 8 GT). Power machine ranging from 20 to 48 PK, 24,5 mm mesh size. The profit of total species per trip earned from shrimp and bycatch per kilograms is Rp 426.000,00. Meanwhile, the total cost of production was Rp. 209.662,00. Therefore, benefit per trip obtained Rp. 216.337,00 with R/C ratio 2.03 which means arad net is feasible to operating. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22068 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6819 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc Effectively of Fishing Gear Credit Analysis to Fishing Commerce At Wadaslintang Reservoir Yulianto, Taufik Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Asriyanto, Asriyanto Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro The aim of the research was to describe the management Wadaslintang Reservoir fisheries resources and to analyze the effectivity of the credit by measure of MSY, fMSY, MER and fMER parameters. The result of the measurement in period before giving of fishing gear credit, MSY and fMSY for dominant fishing gear (set gillnet) are 12.253 kg/year and 2.858 effort/year. For dominant fish (Puntius javanicus) which catch by set gillnet, MSY, fMSY, MER, fMER and                  profit are 3.409 kg/year, 3.371 effort/year, Rp 2.046.800,00/year, Rp 620.800,00/year and                                         Rp 1.426.000,00/year.The result of the measurement in period after giving fishing gear credit, MSY and fMSY for dominant fishing gear (set gillnet) are 28.126 kg/year and 11.859 effort/year. For dominant fish which catch by set gillnet, MSY, fMSY, MER, fMER and profit are 4.960 kg/year, 7.043 effort/year, Rp 38.574.500,00/year, Rp 26.678.600,00/year and Rp 11.896.000,00/year. As conclusion, fishing gear credit could be increased the total catch but may decreased the catch per unit effort.   Key words: credit effectively, effort, MSY, MER, gill net Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6819 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/41782 2022-10-21T03:44:44Z saintek:RSA

nmb a2200000Iu 4500 "220830 2022 eng " 2549-0885 1858-4748 dc Asnani, Asnani Indriani, Indriani Husni, Amir Department of Fisheries Faculty of Agriculture, Universitas Gadjah Mada, Jalan Flora Gedung Perikanan A4 Bulaksumur, Yogyakarta, Indonesia 55281 https://acadstaff.ugm.ac.id/AmirHusni http://orcid.org/0000-0003-3327-9848 Ekantari, Nurfitri Suadi, Suadi Wijayanti, Ima Sambal is a side dish, one of the variants of which is basic chili sauce with additional ingredients of various types of fish such as bete-bete fish (Leiognathus sp). The purpose of this study was to examine the proximate composition and sensory properties (hedonic and description) and to determine the shelf life of bete-bete fish sauce (SIB) using the Accelerated Shelf Life Testing (ASLT) method using the parameters of the total content of bacteria and molds in the chili sauce. The treatments included the use of fish (%) and basic chili sauce (%) with a ratio of 50:50 (SIB1), 40:60 (SIB2), and 30:70 (SIB3). The results showed that the highest proximate composition of SIB was protein and fat with a range of 35.23+1.56 - 42.32±0.45% and 21.14±0.13 - 32.53±1.75, respectively. %. The most desirable sambal (sensory hedonic test) is SIB3, which has the characteristics of appearance: red color typical of fish sauce, slightly bright, brilliant, homogeneous, clean and attractive, aroma: typical of fish sauce is strong, fragrant and fresh, and the consistency is not thick with taste. which is delicious, typical of fish sauce, spicy and somewhat savory. Based on the total parameters of bacteria and molds, it is suspected that the bete-bete fish sauce (SIB3) has a shelf life of 22, 19 and 18 days, respectively, at storage temperatures of 20, 25 and 27 °C. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/41782 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/73484 2025-10-03T03:26:09Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc Ramadhani, Andini Rizky Jurusan Kelautan dan Perikanan, Universitas Trunojoyo Madura, Jl. Raya Telang 02 Kamal, Bangkalan Madura, Jawa Timur, Indonesia 69162| Universitas Trunojoyo Madura. Pratiwi, Wiwit Sri Werdi Siswanto, Aries Dwi Nuzula, Nike Ika Kartika, Ary Giri Dwi Efendy, Makhfud Asih, Eka Nurrahema Ning Campor lorjuk merupakan makanan khas Madura berbahan dasar lorjuk (Solen sp.) dan rempah-rempah pilihan yang mudah didapatkan di pasar. Natrium yang terkandung dalam garam konsumsi berperan bagi tubuh sebagai sumber elektrolit. Namun, konsumsi garam yang berlebihan dapat menyebabkan masalah kesehatan seperti hipertensi atau tekanan darah tinggi. Tujuan penelitian ini untuk menentukan perlakuan terbaik bumbu campor lorjuk dengan penambahan garam kaya mineral berdasarkan parameter kadar NaCl terendah dan mikrob (E.coli) sebagai parameter kelayakan pangan pada produk perikanan. Empat sampel garam kaya mineral (K, F1, F2, F3) dianalisis meliputi kadar NaCl dan kadar air, sedangkan empat sampel bumbu campor lorjuk dengan penambahan berbagai jenis garam yakni N = K (tanpa lorjuk), P1 = F1, P2 = F2, dan P3 = F3 (masing-masing 13 g lorjuk) meliputi kadar NaCl, kadar air, dan uji mikroba. Kadar NaCl garam kaya mineral berkisar antara 78% (F3) hingga 93% (K), sementara kadar air berkisar antara 4,9% (F3) hingga 6,5% (F2). Pada kadar NaCl bumbu tertinggi N sebesar (62%) dan terendah P3 sebesar (49%), sementara itu, kadar air berkisar antara 18% (P3) hingga 20% (N, P1, P2). Berdasarkan karakteristik kimia perlakuan (P3) pada bumbu campor lorjuk yaitu NaCl 49%, kadar air 18%. Hasil pengujian mikrobiologi bumbu campor lorjuk sampel (bubuk lorjuk, N, P1, P2, P3) terindikasi negatif <3 MPN/g. Perlakuan P3 yang menggunakan garam kaya mineral F3 menunjukkan hasil terbaik (kadar NaCl terendah dan kadar air optimal), serta memenuhi syarat mutu mikrobiologi (negatif E. coli <3 MPN/g). Oleh karena itu, formulasi F3 direkomendasikan sebagai yang terbaik dan aman dikonsumsi. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/73484 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16823 2020-04-17T19:27:03Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc IDENTIFIKASI KESELAMATAN KERJA KEGIATAN BONGKAR MUAT KAPAL PURSE SEINE DI MUNCAR, BANYUWANGI (An Occuputional Safety Identification of Purse Seiner Loading and Unloading Services in Muncar, Banyuwangi) Lestari, Dinda Ayu Departemen Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Purwangka, Fis Departemen Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Iskandar, Budhi Hascaryo Departemen Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Bongkar muat; keselamatan kerja; purse seine   Kegiatan bongkar muat kapal purse seine merupakan kegiatan yang melibatkan banyak orang dan aktivitas. Peluang kecelakaan kerja pada kondisi tersebut dapat terjadi pada setiap tahap aktivitas bongkar muat. Penelitian bertujuan untuk mendeskripsikan aktivitas kegiatan bongkar muat kapal purse  seine di PPP Muncar dan mengidentifikasi potensi bahaya pada kegiatan bongkar muat di PPP Muncar. Pendekatan kualitatif dengan metode studi kasus (Sugiono 2010) digunakan untuk mengidentifikasi keselamatan kerja bongkar muat. Analisis deskriptif dengan pendekatan Hierarchical Task Analysis (HTA) dan Job Safety Analysis  (JSA) dilakukan terhadap data observasi langsung di lapangan. Hasil penelitian menunjukkan bahwa terdapat 52 aktivitas pada kegiatan bongkar muat. Analisis HTA dan JSA menunjukkan dari 52 kegiatan tersebut yang memiliki kategori tidak bahaya sebanyak 3 (6%) kegiatan, ringan 28 (54%) kegiatan, menengah 20 (38%) kegiatan, dan berat 1 (2%) kegiatan serta tidak ada kegiatan yang dikategorikan fatal.  Hasil wawancara menunjukkan bahwa nelayan yang memiliki pengetahuan mengenai keselamatan kerja saat kegiatan bongkar muat yang diambil dari 50 responden yang ada di PPP Muncar adalah: sangat mengerti 8%, mengerti 36%, cukup mengerti 14%, dan yang tidak mengerti 42%. Adapun nelayan yang sadar akan pentingnya keselamatan kerja pada kegiatan bongkar muat adalah 8% dan yang tidak menyadari pentingnya keselamatan kerja sebesar 92%. Hal yang masih perlu diperhatikan adalah belum adanya Prosedur Operasional  Baku (POB) bongkar muat ikan dan perlunya perbaikan fasilitas bongkar muat untuk menekan peluang terjadinya kecelakaan kerja di PPP Muncar., contohnya seperti yang diterapkan di Pelabuhan Tanjung Priok, dimana dikeluarkan Peraturan Kepala Kantor Otoritas Pelabuhan Tanjung P'riok Nomor: UK.112/2/10/0P.TPK.11 Tahun 2011, mengenai Tata Cara Pelayanan Kapal dan Bongkar Muat Barang Di Pelabuhan Tanjung Priok.    Loading and unloading activities of purse seiner involve a lot of people and works. Possibility of accidents on the condition can occur at any stage of loading and unloading activities. The study aimed are to describe the loading and unloading activities of purse seiner in PPP Muncar and to identify potential hazards in the loading and unloading activities in PPP Muncar. The case study method was used in this research. A descriptive analysis using Hierarchical Task Analysis (HTA) and Job Safety Analysis (JSA) were applied as well. The results showed, there were 52 activities in the loading and unloading. Those activities were categorized as activities with no hazard as much as three activities (6%), 28 activities (54%) were categorized as low hazard, 20 activities (38%) were categorized as medium hazard, 1 activity (2%) as highly hazard and no activities were categorized as fatal.  Concerning the knowledge of fishermen toward  occupational safety on loading and unloading activities, taken from 50 respondents, the result showed that very understand (8%), understand (36%), quite understand (14%) and 42% of respondents who do not understand. As for the fishermen who were aware of the importance of workplace safety in loading and unloading activities only 8% and the rest (98%) were not aware of the importance of workplace safety. It was worth to note that the absence of Standard Operational Procedure (SOP) for loading and unloading fish and the need to improve loading and unloading facilities to avoid the chances of  accidents at PPP Muncar.    Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16823 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22944 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190828 2019 eng " 2549-0885 1858-4748 dc POTENSI SUMBERDAYA KIJING (Anodonta woodiana) DI SUB DAS ANAK SUNGAI LAHOMBUTI KABUPATEN KONAWE - SULAWESI TENGGARA (Potency Of Kijing Resources (Anodonta woodiana) In The Subwatershed Of Lahombuti River Konawe Regency - Southeast Sulawesi) Purnama, Muhammad Fajar Halu Oleo University Haslianti, Haslianti Halu Oleo University Salwiyah, Salwiyah Halu Oleo University Admaja, Alfi Kusuma Wakatobi Marine and Fisheries Community Academy, Wakatobi Kijing (A. woodiana); SUB DAS anak Sungai Lahombuti; Kabupaten Konawe Esensi dari penelitian ini dilakukan adalah sebagai referensi mutakhir bagi penelitian terkait dan rekomendasi ilmiah dalam upaya  pengelolaan secara lestari dan berkelanjutan sumberdaya kerang kijing (Anodonta woodiana) khususnya di Kabupaten Konawe - Sulawesi Tenggara. Penelitian ini bertujuan untuk mengetahui potensi sumberdaya kerang kijing (A. woodiana) berdasarkan perspektif kelimpahan populasi dan hubungannya dengan parameter kualitas air di Desa Lahotutu Kabupaten Konawe. Penelitian ini dilaksanakan pada bulan November 2018 – Februari 2019 di SUB DAS anak Sungai Lahombuti, Desa Lahotutu, Kecamatan Wonggeduku Barat, Kabupaten Konawe. Penentuan lokasi pengambilan sampel dilakukan dengan metode Purposive Random Sampling. Pengambilan sampel kerang kijing (A. woodiana) dilakukan di lokasi yang memiliki kelimpahan terbesar kerang kijing yaitu di SUB DAS anak sungai Lahombuti, pada “Saluran Irigasi Utama Persawaan” (Diameter : ± 1,75 m, Panjang : ± 4500 m (4,5 km), Kedalaman : ± 110 cm). Sehingga pengambilan sampel kerang kijing ditetapkan pada stasiun yang sama dengan titik sampling yang berbeda. Pengambilan sampel kerang kijing dilakukan dengan metode transek kuadrat yang berukuran 1x1 m2 sebanyak 3 plot yang ditetapkan secara acak. Hasil penelitian ini menunjukan bahwa kelimpahan kerang kijing tertinggi diperoleh pada bulan Februari sebesar 106,67 ind/m2, selanjunya di bulan Januari dengan kelimpahan sebesar 81,33 ind/m2, kemudian bulan November sebesar 55,67 ind/m2 dan besaran kelimpahan terendah terdapat pada bulan Desember sebesar 53 ind/m2. Data kelimpahan populasi tersebut pada dasarnya berada pada kategori kelimpahan yang sangat tinggi. Terlebih lagi pengambilan sampel kerang tersebut dilakukan di dalam transek dengan luasan yang sangat kecil (1 x 1 m2). Secara ilmiah hal ini membuktikan bahwa Desa Lahotutu Kecamatan Wonggeduku Barat Kabupaten Konawe memiliki potensi sumberdaya kerang kijing (A. woodiana) yang sangat besar The essence of this research is carried out as the latest reference for related research and scientific recommendations in an effort to sustainably manage kijing (Anodonta woodiana) resources, especially in Konawe Regency - Southeast Sulawesi. This study aims to determine the potential of shellfish (A. woodiana) based on the perspective of population abundance and its relationship with water quality parameters in Lahotutu Village, Konawe Regency. This research was conducted in November 2018 - February 2019 in the Sub-watershed of the Lahombuti River in Lahotutu Village, Wonggeduku Barat District, Konawe Regency. The sampling location was determined using the Purposive Random Sampling method. Sampling of Kalambodo mussel (A. woodiana) was carried out at the location with the greatest abundance of mussels, in the Sub-watershed of the Lahombuti tributary of Lahotutu Village, on the "Main Rice Field Irrigation Channel" (diameter: ± 1,75 m, length: ± 4500 m, depth: ± 110 cm). Sampling of mussel was carried out at the same station with different spot sampling points. The Kalambodo mussel samples were taken using a 1x1 m2 sized transect method on 3 randomly assigned plots. The results of this study indicate that the highest abundance of kijing shellfish was obtained in February at 106.67 ind/m2, the next in January with an abundance of 81.33 ind/m2, then in November at 55.67 ind/m2 and the lowest abundance in December at 53 ind/m2. Basically the population abundance data is in the category of very high abundance. Moreover, the sampling of shellfish is carried out on a transect with a very small area (1 x 1 m2). Scientifically this proves that Lahotutu Village, West Wonggeduku Subdistrict, Konawe District has a very large potential of mussel shellfish (A. woodiana). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22944 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6843 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Fisheries Infrastructure Needs Analysis in Order to Capture Fisheries Development Based on Commodities of South Sumatra Province Septifitri, Septifitri Program Studi Teknologi Kelautan Sekolah Pascasarjana Institut Pertanian Bogor Departemen Pemanfaatan Sumberdaya Perikanan, FPIK IPB Monintja, Daniel R Program Studi Teknologi Kelautan Sekolah Pascasarjana Institut Pertanian Bogor Departemen Pemanfaatan Sumberdaya Perikanan, FPIK IPB Wisudo, Sugeng Hari Program Studi Teknologi Kelautan Sekolah Pascasarjana Institut Pertanian Bogor Departemen Pemanfaatan Sumberdaya Perikanan, FPIK IPB Martasuganda1, Sulaeman Program Studi Teknologi Kelautan Sekolah Pascasarjana Institut Pertanian Bogor Departemen Pemanfaatan Sumberdaya Perikanan, FPIK IPB Development of capture fisheries in South Sumatra province in decline since the separation of Bangka Belitung province. This area of waters caused by the increasingly narrow. However, the development of fisheries sector still has a big opportunity, especially those based on competitive commodities. This study aimed to analyze the type of capture fisheries yield commodities, type, and allocation to take advantage of superior technology, excellent fish seumberdaya, and calculate the necessary facilities and infrastructure for the development of competitive commodities based fishery in South Sumatera province. Research conducted by survey with some analysis tools such as scoring methods, LGP and fishery facilities needs analysis. Flagship species of fish that can be developed such as prawn, swimming crab, fish and machete-cleaver manyung with superior fishing gear types trammel net, drift gill nets, gill nets and fishing equipment. Fisheries is needed is a means of fishery harbors as many as 10 pieces, as many as 20 fruit shipyards, factories nets one unit and processing 8 units. Addition of TPI as a necessary conclusion of the building where the sale of the landed catch of fishermen. Key Words : Capture Fisheries, Competitive Commodities, South Sumatera Province Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6843 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/21106 2019-02-15T09:53:33Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/78633 2026-02-05T07:11:14Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Sukardi, Sukardi universitas nusa nipa Pale, Christofel Oktavianus Nobel Ikan madidihang (Thunnus albacares) merupakan komoditas penting dalam sektor perikanan tangkap di Indonesia, terutama di Nusa Tenggara Timur, yang memiliki nilai ekonomi dan sosial yang tinggi. Kelimpahan ikan ini dipengaruhi oleh kondisi lingkungan laut, seperti suhu permukaan laut (SPL) dan konsentrasi klorofil-a (CHL). Kondisi oseanografi ini berhubungan langsung dengan produktivitas primer dan distribusi ikan, yang penting untuk pengelolaan sumber daya perikanan secara berkelanjutan. Penelitian ini bertujuan untuk menganalisis hubungan antara parameter oseanografi (SPL dan CHL) dengan kelimpahan ikan madidihang di perairan selatan Kabupaten Sikka, Nusa Tenggara Timur. Penelitian dilakukan pada April–Juli 2025, dengan menggunakan data penginderaan jauh berbasis satelit yang digabungkan dengan data observasi lapangan. Analisis dilakukan dengan Model Generalized Additive Model (GAM) dengan formula GAM ~ s(SPL) + s(CHL) untuk menguji pengaruh non-linear antara variabel oseanografi dan kelimpahan ikan. Hasil menunjukkan bahwa SPL dan CHL berpengaruh signifikan dengan p = 0,01685 (SPL) dan p = 0,00413 (CHL). Nilai edf = 1,000 untuk SPL menunjukkan hubungan hampir linear, sedangkan edf = 1,812 untuk CHL menunjukkan hubungan non-linear. Model ini menghasilkan AIC = 1243,599, R² (adj) = 0,0604, dan Deviance Explained = 7,61%, menunjukkan kecocokan model yang baik. Pemetaan spasial menunjukkan zona potensial penangkapan ikan tertinggi terjadi pada Juni–Juli, dipengaruhi oleh aktivitas upwelling. Kondisi optimal penangkapan ditemukan pada SPL 27,5–28,5°C dan CHL 0,1–0,5 mg/m³. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/78633 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/24106 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200302 2020 eng " 2549-0885 1858-4748 dc MAKANAN IKAN KAKATUA (Scarus rivulatus Valenciennes, 1840) DI PERAIRAN TANJUNG TIRAM, KECAMATAN MORAMO UTARA, KABUPATEN KONAWE SELATAN SULAWESI TENGGARA Asriyana, Asriyana Universitas Halu Oleo, Kendari, Sulawesi Tenggara http://orcid.org/0000-0002-3407-6308 Asrin, La Universitas Halu Oleo, Kendari, Sulawesi Tenggara Halili, Halili Universitas Halu Oleo, Kendari, Sulawesi Tenggara Irawati, Nur Universitas Halu Oleo, Kendari, Sulawesi Tenggara Kakatua; kompetisi; makanan; Scarus rivulatus; Tanjung Tiram Pengetahuan tentang makanan dan tingkat pemanfaatan makanan ikan kakatua penting untuk memahami peranan ekologi ikan kakatua dalam menjaga kelangsungan dan keseimbangan kondisi terumbu karang agar tetap baik. Penelitian ini bertujuan untuk menganalisis makanan ikan kakatua di perairan Tanjung Tiram, Sulawesi Tenggara. Pengambilan contoh dilakukan sekali sebulan selama empat bulan dari bulan Januari sampai April 2018, dengan bottom experimental gillnets berukuran mata jaring 1¼, 1½,  dan 2 inci. Makanan dianalisis menggunakan indeks kepenuhan lambung, indeks bagian terbesar, luas relung, dan tumpang tindih relung. Jumlah ikan yang terkumpul sebanyak 358 ekor, dengan kisaran panjang total sekitar 69,0-195mm dan bobot 4,96-159,86 g. Ditemukan 6 macam organisme makanan dalam saluran pencernaan ikan kakatua. Menu makanan didominasi oleh kelompok alga hijau spesies Ulva lactuca dan Caulerpa racemosa. Tidak terdapat perbedaan komposisi jenis makanan ikan kakatua baik antar jenis kelamin maupun waktu pengamatan. Dalam memanfaatkan sumber daya makanan di perairan, ikan kakatua tidak selektif yang terindikasi dari nilai luas relung yang rendah. Peluang kompetisi intraspesifik terhadap makanan tertinggi saat bulan Januari hingga April.   Knowledge of food habit and the level of utilization of rivulated parrotfish are important to understanding the role of parrotfish ecology in maintaining the continuity and balance of coral reef conditions to remain good. This study aims to analyze the food habit of rivulated parrotfish in the waters of Tanjung Tiram, Southeast Sulawesi.Sampling was done monthly from January to April 2018, with bottom experimental gillnets with mesh size 1 ¼, and 1 ½ inches. The food habits was analyzed using index of fullness, index of preponderance,niche breadth, and niche overlapping. There were 358 fish with total length and weight ranged from 69.0-195.0 mm and 4.96-159.86 g respectively. There were six grouped of food organisms in the digestive tract of rivulated parrotfish. Important diet of rivulated parrotfish is green algae, Ulva lactuca and Caulerpa racemosa species.This study concludes that sex and temporal variations of food composition do not differ significantly.In utilizing food resources in the waters, rivulated parrotfishis not selective which is indicated by a low value of niche breadth. The highest intraspecific competition for food is from January to April. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24106 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8098 2015-06-29T00:59:16Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc STRATEGI PENGEMBANGAN PARIWISATA MANGROVE DI KAWASAN KONSERVASI PERAIRAN NUSA PENIDA (Strategies of Mangrove Tourism Development in Nusa Penida Marine Protected Area) Wijayanto, Dian Pogram Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Nuriasih, Dian Minggus Magister Manajemen Sumberdaya Pantai Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Huda, Muhammad Nurul Praktisi/Konsultan Sosial Ekonomi Perikanan Hutan mangrove di Kawasan Konservasi Perairan (KKP) Nusa Penida memiliki prospek untuk dikembangkan sebagai salah satu pusat pariwisata di kawasan KKP Nusa Penida, Tujuan dari penelitian ini adalah mengetahui daya dukung kawasan (DDK) pariwisata mangrove dan menyusun rekomendasi strategi pengembangan pariwisata mangrove di KKP Nusa Penida. Metode yang digunakan adalah metode deskriptif, dengan pengambilan data dilakukan dengan survei, observasi lapangan dan studi pustaka yang relevan. Analisis dilakukan untuk mengestimasi daya dukung kawasan pariwisata mangrove dan analisis SWOT untuk penyusunan strategi pengembangan pariwisata. Hasil analisis menunjukkan bahwa daya dukung kawasan pariwisata mangrove di wilayah KKP Nusa Penida adalah sebesar 92,028 orang/tahun dengan kondisi beban pariwisata mangrove sekitar 4% DDK. Sedangkan prioritas strategi pengembangan pariwisata mangrove di KKP Nusa Penida antara lain: strategi pengembangan pariwisata berbasis konservasi mangrove, strategi penjagaan dan peningkatan kualitas sumberdaya mangrove, strategi diversifikasi pariwisata mangrove, strategi promosi pariwisata mangrove di KKP Nusa Penida, strategi peningkatan sarana, prasarana dan fasilitas pendukung pariwisata mangrove, strategi pengembangan kualitas sumberdaya manusia dan kelembagaan usaha pariwisata, dan strategi mitigasi bencana alam. Kata Kunci: daya dukung kawasan, pariwisata mangrove, KKP Nusa Penida   Mangrove forest in Nusa Penida Marine Protected Areas (MPA) has the prospect to be developed as a center of tourism in the Nusa Penida MPA, The purpose of this study was to estimate the carrying capacity mangrove tourism and make a recommendations of mangrove tourism development strategies in the Nusa Penida MPA. The research used a descriptive method, which, the data collection used the survey, observation and literature studies. This study estimated the carrying capacity of the mangrove tourism and used SWOT analysis for determine the mangrove tourism development strategy. The research proved if the carrying capacity is 92,028 persons/year, which the rate of visit still around 4% of the carrying capacity. The priority recommendations of development strategies to mangrove tourism in Nusa Penida MPA are strategy of tourism development based on mangrove conservation, strategy of maintain and improvement to quality of mangrove resources, strategy of mangrove tourism diversification, strategy of mangrove tourism promotion, strategy of facilities improvement, strategy of human resources development and institutional development, and strategy of mitigation.   Key words : carrying capacity, mangrove tourism, Nusa Penida MPA Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8098 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2721 2014-04-25T17:01:16Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Productivity and Feasibility of Tuna Longliner on Cilacap District Central Java Saputra, Suradi Wijaya Program Studi Manajamen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Solihin, Anhar Program Studi Manajemen Sumberdaya Peraira Fakultas Perikanan dan Ilmu Kelautan Universitas Dionegoro Wijayanto, Dian Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan IlmuKelautan Univerditas Diponegoro Kurohman, Faik Program Studi Pemanfaatan Sumberdaya Periknan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro ABSTRACT Tuna Longliner or Tuna Longliner is fishing gear for a large pelagic fish, including Tuna. One unit of Tuna Longlinerr usually operate are 1000-2000 off the hook for once. Tuna Longliner generally operated on the high seas or ocean waters. Fuel is the largest production factor of Tuna Longliner. Fuel prices tend to rise is expected to affect the productivity and business feasibility. This study aims to assess the productivity and business feasibility Tuna Longliner at Cilacap district. Research carried out in PPS Cilacap in August until September 2008, using survey methods. Primary data collected are: the price of fish, size of vessel (GT), composition of the catch, and volume production. While secondary data is captured fish production of Tuna Longliner and fishing trip. Analysis of production data and produksivity using descriptive statistics, presented in the curves. Business feasibility analysis performed by calculating the NPV, IRR, and payback periods.  The results showed that the productivity of Tuna Longliner of Cilacap district is relatively low (0.045 tons / GT / year). The low of productivity due to the occurrence of a fully-exploited. This apparently resulted in a fishing business using Tuna Longliner of Cilacap district is not feasible, based on indicators of NPV, IRR, and payback periods. This condition requires that the management of serious action from government. Keyword: Tuna Longline, produktivity, feasibility. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2721 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/50487 2023-02-10T03:38:44Z saintek:RSA

nmb a2200000Iu 4500 "221028 2022 eng " 2549-0885 1858-4748 dc EFFECT OF ENVIRONMENTAL PARAMETERS ON THE VALUE OF HUE SAND DOLLARS IN KARIMUNJAWA ISLANDS CENTRAL JAVA INDONESIA Suryanti, Suryanti Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Universitas Diponegoro Anggoro, Sutrisno Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Universitas Diponegoro A’in, Churun Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Universitas Diponegoro Taufani, Wiwiet Teguh Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Universitas Diponegoro Sand dollar is one among many echinoid groups with unique habitat preferences in the coastal waters. The hue (color) of sand dollar is one of the unique aspects, but currently, the information is still very limited. The purpose of this study is to investigate the value of hue sand dollar in Karimunjawa waters and investigate the condition of environmental parameters in Karimunjawa waters so that it can further analyze the environmental effect on hue sand dollar levels descriptively. The research was carried out in Karimunjawa islands, including Karimunjawa, Menjangan Kecil, and Cemara Kecil islands in June – July 2019. Sampling was carried out using line-transect with the transect length of 25 m. Four sampling stations were occupied at each island. The observation parameters were including sea surface temperature, pH, DO, organic matter, and seafloor coverage such as coral, rubble, and sand. Hue value was analyzed with Haphazard sampling method, using Adobe Photoshop. Data analysis was conducted with ANOVA and regression. The result showed there were variations in environmental parameters, including the significant difference of pH, organic matter, and rubble coverage. The hue of sand dollar has also differed significantly among islands.  Regression analysis showed significant effect from pH, coral coverage and rubble coverage on the hue value of sand dollar with the formula: ln (Y) = 20.867– 2.364(X1) + 6.608e-5(X2)+ 1.271e-4(X3); while the determination coefficient was 0.849 (p = 0.001). The effect of environmental parameters on the hue value of sand dollar might occur indirectly, but due to the change of pigment composition and concentration. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-11-24 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/50487 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 3 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/25672 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200810 2020 eng " 2549-0885 1858-4748 dc ANALISIS STATUS TROFIK PERAIRAN WADUK JATIBARANG DENGAN MENGGUNAKAN DATA CITRA SATELIT SENTINEL-2A (Analysis of the Trophic Status of Jatibarang Reservoir Waters Using Sentinel-2A Satellite Image Data) Chandra, Rajib Jaka Dwinta Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Ain, Churun Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Febrianto, Sigit Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Rudiyanti, Siti Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Purwanti, Frida Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Status trofik; citra sentinel-2A; indeks carlson; kualitas air Waduk Jatibarang yang berlokasi di Kelurahan Kandri, Kota Semarang memiliki potensi perikanan. Kondisi pemantauan kualitas air dapat diketahui dengan berbagai cara salah satunya yaitu dengan analisis status trofik. Tujuan penelitian ini untuk  mengetahui gambaran spasial parameter kualitas air diantaranya kecerahan, fosfor dan klorofil-a serta sebaran status trofik di Waduk Jatibarang. Penelitian ini menggunakan metode deskriptif, data citra Satelit Sentinel-2A pada rekaman tanggal 04 Maret 2019 untuk menentukan status trofik dengan pengolahan menggunakan aplikasi ErMapper serta algoritma kecerahan, total fosfor, dan klorofil-a. Pengambilan data lapangan dilakukan pada tanggal 26 Maret 2019 sebagai uji akurasi. Pengambilan data lapangan dilakukan di 7 stasiun 3 kali pengulangan dengan waktu pagi siang dan malam. Analisa akurasi data dilakukan dengan pendekatan standart error (SE) sedangkan status trofik dengan Metode Indeks Carlson. Hasil yang diperoleh untuk uji akurasi (SE) setiap variabel yaitu : kecerahan 0,163, total fosfor 0,882 dan klorofil-a 1,011, nilai kecerahan berkisar antara 0,4 – 1 meter, nilai total fosfor berkisar antara 0,01 – 0,2 µg/l dan nilai klorofil-a berkisar antara 0,1 – 1,2 µg/l. Nilai status trofik Carlson Waduk Jatibarang berdasarkan pengolahan data satelit sentinel 2A berkisar 48,46 – 59,58 dan nilai TSI tertinggi berada pada titik 4 pada inlet Waduk Jatibarang. Secara keseluruhan tingkat kesuburan waduk Jatibarang termasuk kedalam mesotrofik sampai eutrofik ringan.   Jatibarang Reservoir, located in the Kandri village, Semarang City has potential for fisheries. The monitoring of water quality can be known in various ways one of which is by the trophic status analysis. The purpose of this study were to know the water quality parameters including brightness, phosphorus and chlorophyll-a and to determine the distribution of trophic status in the Jatibarang Reservoir. This research uses descriptive method, with Sentinel-2A Satellite imagery data recorded on March 4, 2019 to determine trophic status by processing using the ErMapper application as well as the brightness, total phosphorus, and chlorophyll-a algorithms.Field data collected on March 26, 2019 as an accuracy test. Field data retrieval was done at 7 stations and with 3 repetitions in the morning afternoon and evening time. Data accuracy analysis was done by standard error (SE) while trophic status by Carlson Index Method. The results obtained for testing the accuracy (SE) of each variable were: brightness 0.163, total phosphorus 0.882 and chlorophyll-a 1.011, brightness ranged from 0.4-1 meters, total phosphorus ranged between 0.01 - 0.2 µg / l and chlorophyll-a ranged from 0.1 - 1.2 µg / l. The Carlson Trophic Jatibarang trophic status value ranges from 48.46 - 59.58, the trophic level includes mesotrophic to mild eutrophic. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/25672 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8115 2015-06-29T15:33:21Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc KONDISI HABITUS Rhizophora sp DI PANTURA KOTA SEMARANG BERDASARKAN NILAI HUE DAUN (Habitus Condition of Rhizophora sp in the Northern Coast of Semarang City based on the Hue Number) Purwanti, Frida Program Studi Manajemen Sumberdaya Peairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Rudiyanti, Siti Program Studi Manajemen Sumberdaya Peairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Suryanto, Agung Program Studi Manajemen Sumberdaya Peairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Mangrove merupakan salah satu ekosistem pesisir penting yang berfungsi untuk melindungi daerah pesisir dan untuk mendukung produktivitas primer. Keanekaragaman hayati mangrove di Propinsi Jawa Tengah didominasi oleh Rhizopora sp. Salah satu indikator yang dapat digunakan untuk mendeteksi ksehatan hutan mangrove adalah daun. Nilai hue dapat digunakan untuk menunjukkan kondisi habitus mangrove. Penelitian ini bertujuan untuk mengetahui jumlah hue dari daun Rhizopora sp. baik di areal terbuka maupun daerah teduh, untuk menganalisis hubungan hue dengan parameter lingkungan, dan untuk mengidentifikasi kondisi habitus dari Rhizopora sp di pantai utara Kota Semarang. Purposive random sampling digunakan untuk mengumpulkan spesimen daun Rhizopora sp dan untuk mengukur kualitas perairan Kabupaten Tugu, kemudian nilai Hue dari masing-masing daun mangrove dianalisis menggunakan program komputer Adobe photoshop CS2. Korelasi Pearson digunakan untuk analisis korelasi nilai daun Hue terhadap paramater lingkungan. Penelitian ini dilakukan dari bulan September sampai November 2011, di Tugu, Semarang. Hasil penelitian menunjukkan bahwa nilai Hue Rhizophora apiculata di stasiun Mangunharjo lebih rendah dari stasiun Mangkang Kulon, baik di areal terbuka maupun ternaungi. Korelasi nilai Hue untuk suhu dan salinitas perairan memiliki korelasi yang sangat lemah untuk kedua kondisi areal.Habitus terbuka dan ternaungi dari Rhizophora apiculata di Tugu District menunjukkan nilai perbedaan Hue yang dipengaruhi oleh suhu udara dan substrat. Kata kunci: Mangrove, hue, korelasi, habitus   Mangrove is one of the important coastal ecosystem that have function to protect coastland and to support primary productivity. Mangrove biodiversity at the Central Java Province is dominated by Rhizophoraceae. One indicator that can be used to detect the health of mangrove forest stands is the leaf. Hue number correspond to the color can be used to indicate mangrove habitus condition. The research aims to know the Hue number from the Rhizophora sp leaf on the open and shading areas; to analyse correlation its Hue to the environmental parameter; and to identify habitus condition of Rhizophora sp at the northern coast of Semarang city. Purposive random sampling was used to collect Rhizophora leafs specimen and to measure waters quality of the Tugu District, then Hue value from each mangrove leaf stand was analised using Adobe photoshop CS2 computer program. Pearson correlation was used to analysed correlation of Hue leaf value to environmental paramater. The research was conducted from September to November 2011, at Tugu District, Semarang. The result indicated that Hue value of Rhizophora apiculata at Mangunharjo station  is lower than Mangkang Kulon station, both at the open and shading areal.  Correlation of Hue value to water temperature and water salinity have a very weak correlation for both of open and shading areal.Habitus condition of Rhizophora apiculata at Tugu District show a difference value of Hue that affected by air temperature and substrat. Key words : Mangrove, Hue, correlation, habitus Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8115 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2053 2020-12-07T08:06:32Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc The Development Opportunity of Catch Fishery in The Province of Southern Sumatera Septifitri, Septifitri Mahasiswa Program Doktor pada Program Studi TKL SPS IPB1Mahasiswa Program Doktor pada Program Studi TKL SPS IPB South Sumatera province since 2000, began managing the fishery resources separately with the Province of Bangka Belitung. Bangka Belitung contribution in the fisheries sector of the South Sumatera province in 1999 by 72 %. Based on these conditions, then do research on fisheries development opportunities in the surrounding waters of South Sumatera. This research was conducted in February 2006 until July 2006 in two Regency namely Komiring Ogan Ilir and Banyuasin Regency.  The results showed that the leading commodities in the province of South Sumatera is shrimp, crab, marine catfish (Arius thalassinus), and wolf herring (Chirosentrus dorab). This leading commodities still have a great opportunity to be developed for their utilization rates still ranged between 58,42% – 66,77% Fishing gear priority based on the analysis of MCA (multy Critical Analysis) with considering the biological aspects, technical, social and economic is trammelnet, drift gillnet and Stationary-bamboo lift net.   Key Words: Development, Capture Fisheries , South Sumatera province Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2053 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49516 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230426 2023 eng " 2549-0885 1858-4748 dc Pamungkas, Satrio Adil Department of Fisheries, Universitas Gadjah Mada, Jl. Flora Bulaksumur, Karang Malang, Caturtunggal, Depok, Sleman Regency, Special Region of Yogyakarta 55281 https://sinta.kemdikbud.go.id/authors Puspita, Indun Dewi Ustadi, Ustadi Limbah perikanan yang berasal dari udang, kepiting, dan kerang, umumnya mengandung kitin yang merupakan suatu polisakarida. Kitin memiliki struktur polimer linier yang terdiri dari monomer β-1,4-N-asetil-D-glukosamin, dan memiliki banyak manfaat dalam bentuk produk turunannya. Produk turunan kitin, seperti glukosamin dan N-Asetilglukosamin, memiliki nilai ekonomi yang tinggi sebagai bahan baku alternatif di berbagai industri seperti farmasi dan pangan. Proses degradasi kitin menjadi senyawa tersebut dapat dilakukan melalui reaksi enzimatis dengan bantuan enzim kitinase yang diproduksi oleh bakteri. Penelitian ini bertujuan untuk mengetahui pengaruh pH (6, 7 dan 8), suhu (30ºC, 35ºC dan 40ºC) dan jenis substrat (koloidal kitin, kitin serbuk dan tepung cangkang udang) terhadap aktivitas kitinase Bacillus sp. RNT9. Parameter yang diuji adalah aktivitas kitinase (U/mL) dan kadar N-Asetilglukosamin (NAG) medium (ppm). Kedua parameter ini diukur secara kuantitatif dengan metode kolorimetri. Hasil penelitian menunjukan bahwa kondisi terbaik untuk menghasilkan aktivitas kitinase pada Bacillus sp. RNT9 adalah dengan medium pH 8, suhu inkubasi 35ºC dan jenis substrat kitin koloidal. Aktivitas kitinase tertinggi yang diproduksi Bacillus sp. RNT9 berturut-turut sebesar 0,0008 U/mL pada perlakuan pH 8 pada hari ke-2 fermentasi, 0,0013 U/mL yang diperoleh pada perlakuan suhu 35ºC hari untuk ke-4 dan 0,0010 U/mL yang diperoleh pada perlakuan jenis substrat koloidal kitin untuk hari ke-2 fermentasi. Konsentrasi NAG mencapai nilai tertinggi pada optimasi pH 8 untuk hari ke-2 fermentasi sebesar 9,5968 ppm. Pada optimasi suhu 35ºC untuk hari ke-4 fermentasi sebesar 32,387 ppm serta pada perlakuan optimasi jenis substrat koloidal kitin untuk hari ke-4 fermentasi sebesar 26,031 ppm.   Fishery waste originating from shrimp, crabs and clams, generally contains chitin which is a polysaccharide. Chitin has a linear polymer structure consisting of β-1,4-N-acetyl-D-glucosamine monomers, and has many benefits in the form of its derivative products. Chitin derivative products, such as glucosamine and N-acetylglucosamine, have high economic value as alternative raw materials in various industries such as pharmaceuticals and food. The process of degradation of chitin into these compounds can be carried out through enzymatic reactions with the help of chitinase enzymes produced by bacteria. This study aims to determine the effect of pH (6, 7 and 8), temperature (30ºC, 35ºC and 40ºC) and type of substrate (colloidal chitin, chitin powder and shrimp shell flour) on the chitinase activity of Bacillus sp. RNT9. The parameters tested were chitinase activity (U/mL) and medium N-Acetylglucosamine (NAG) levels (ppm). Both of these parameters were measured quantitatively by the colorimetric method. The results showed that the best conditions for producing chitinase activity in Bacillus sp. RNT9 is with a medium of pH 8, incubation temperature of 35ºC and the type of substrate is colloidal chitin. The highest chitinase activity produced by Bacillus sp. RNT9 was 0,0008 U/mL, respectively, at pH 8 treatment on the 2nd day of fermentation, 0,0013 U/mL obtained at 35ºC temperature treatment for the 4th day and 0,0010 U/mL obtained at treatment type of chitin colloidal substrate for the 2nd day of fermentation. The concentration of NAG reached the highest value at the optimization of pH 8 for the 2nd day of fermentation of 9,5968 ppm. At the optimization temperature of 35ºC for the 4th day of fermentation it was 32,387 ppm and at the optimization treatment of chitin colloidal substrate for the 4th day of fermentation it was 26,031 ppm. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49516 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/25965 2022-04-19T17:30:02Z saintek:RSA

nmb a2200000Iu 4500 "201222 2020 eng " 2549-0885 1858-4748 dc Putra, Pringgo Kusuma Dwi Noor Yadi Institut Pertanian Bogor https://scholar.google.com/citations?user=NfLs4pgAAAAJ&hl=en http://orcid.org/0000-0002-3081-9063 Novita, Yopi Iskandar, Budhi Hascaryo Program bantuan kapal penangkap ikan yang diberikan oleh pemerintah kepada nelayan memiliki banyak kendala sehingga banyak kapal bantuan tersebut tidak digunakan secara optimal. Salah satu faktor kapal tersebut tidak digunakan adalah tidak sesuainya antara bentuk kapal dengan karakteristik dan kebiasaan nelayan setempat, seperti yang terjadi di daerah Pelabuhan Perikanan Nusantara Brondong. Oleh karena itu, perlu dilakukannya kajian terlebih dahulu untuk mengetahui keragaman bentuk kapal penangkap ikan di daerah tersebut. Kajian ini memiliki tujuan untuk mengidentifikasi dan menentukan jumlah keragaman bentuk kapal penangkap ikan di daerah Pelabuhan Perikanan Nusantara Brondong. Data parameter bentuk kapal yang dibutuhkan adalah bentuk linggi haluan, linggi buritan, bentuk penampang membujur kasko, bentuk midship dan jenis kemudi. Data tersebut dikumpulkan dengan menggunakan metode survei dan dikelompokkan dengan menggunakan metode hierarchical clustering. Hasil kajian menghasilkan dua kelompok bentuk kapal tradisional yang berbeda satu sama lain. Kelompok pertama beranggotakan kapal yang menggunakan linggi haluan berbentuk spoon bow, linggi buritan yang berbentuk elliptical stern dan kasko kapal dengan penampang membujur berbentuk double pointed. Kelompok kedua beranggotakan kapal yang menggunakan linggi haluan berbentuk raked bow, linggi buritan berbentuk transom dan kasko kapal dengan penampang membujur berbentuk transom.   Fishing vessel assistance program provided by the government has a lot of obstacles, causing many ships are not being used optimally by fishermen. The incompativility between the forms of the ships with the characteristics and habits of local fishermen, such as in the Brondong Fisheries Port area. Therefore, a study to determine the diversity forms of fishing vessels in the area needs to be done. The purpose of this study was to identify and determine the diversity forms of fishing vessels in the Brondong Fisheries Port area. The required vessel shape parameter data is the shape of bow, stern, steering type, cross section and midship of hull. The data is collected using survey methods and grouped by hierarchical clustering method. The results showed that there were two traditinoal ship design groups. The first group consists of ships that have a spoon-shaped bow, elliptical stern and a double pointed cross hull. The second group consists ships that have raked bow, transom stern and transom hull. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/25965 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8329 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc Addition of Phytase Artificial Feed to Increase Digesting, Specific Growth and Survival Rate of Nile Tilapia fingerlings (Oreochromis niloticus) Rachmawati, Diana Program Studi Budidaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Samidjan, Istiyanto Program Studi Budidaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang The aims of this study were to examine the effects of phytase enzym and to determine the optimum dose of phytase enzym in artificial feed on digesting, specific growth rate and survival rate of Nile Tilapia fingerlings (Oreochromis niloticus). Nile Tilapia fingerlings (O. niloticus) used in this study were 120 animals with the weight of 3±0.02 g/animal. The fingerlings were raised in 6 weeks with the density of 1 animal/liter. Methodology used in this study was laboratory treatments with complete random design. The study consisted of four treatments and three repetitions. The treatments were addition of phytase enzym in artificial feed with the different level of doses; those were A (0 mg/(kg of feed)), B (500 mg/(kg of feed)), C (1.000 mg/(kg of feed)), and D (1.500 mg/(kg of feed)). The artificial feed with 30% protein content was in the dried and crumb pellet form which was added phytase enzym in every treatment. Data collected were specific growth rate, feed conversion ratio, protein efficiency ratio, raw protein digesting rate, total protein digesting rate, survival rate and water quality. Varian annalysis was used in this study. If the results were significant (p<0.05) and highly significant (p<0.01), double Duncan area test was conducted to determine the mean of different treatments. In order to find the optimum effect polynomial orthogonal test was used. Descriptive analysis was used to explain raw and total protein digesting rate and water quality. The results show that the addition of phytase enzym in artificial feed significantly affected on the specific growth and feed utilization ( feed and protein efficiency ratios); however, it did not significantly affect on the survival rates. The optimum dose of phytase enzym in artificial feed on the specific growth and feed utilization was at the level of 1,000 mg/(kg of feed). This level resulted in the highest of raw and total protein digesting rates of Nile Tilapia fingerlings (O. niloticus), compared to B, D, and A treatments. The raw and total protein digesting rates were of 84.88% and 71.27%. The water quality during study was in viable range for the Nile Tilapia fingerlings (O. niloticus) cultivation. Keywords : Nile Tilapia (Oreochromis niloticus), Phytase Enzym, Digesting, Specific Growth, Survival Rate Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8329 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2738 2020-09-17T10:49:07Z saintek:RSA

nmb a2200000Iu 4500 "100815 2010 eng " 2549-0885 1858-4748 dc Comparative Analysis of Bottom Set Long Line and Boat Seine Fishing Effort Productivity In Juwana, Pati Regency Setyorini, Setyorini Program Studi Pemanfaatan Sumber Daya Perikanan Jurusan Perikanan-Fakultas Perikanan dan Kelautan-Universitas Diponegoro Semarang Jl. Hayam wuruk 4A Semarang Suherman, Agus Program Studi Pemanfaatan Sumber Daya Perikanan Jurusan Perikanan-Fakultas Perikanan dan Kelautan-Universitas Diponegoro Semarang Triarso, Imam Program Studi Pemanfaatan Sumber Daya Perikanan Jurusan Perikanan-Fakultas Perikanan dan Kelautan-Universitas Diponegoro Semarang   Bottom set long line and Boat seine are the divece which more used by fisherman at Juwana - Pati. This research is used for learn and comparison of productivity rate and many factors and profit rate rate of catch applied of Bottom set long line and Boat seine in Juwana - Pati. This research is used descriptive method. The output of this research is the productivity average per unit of Bottom set long line is 39,09 ton/unit/trip. Productivity per ABK is 0,89 ton/people/trip and the productivity average per trip is 12,27 ton/trip. The productivity average of boat seine is 260,10 ton/unit/trip. Productivity per ABK is 0,92 ton/people/trip and productivity average per trip is 12,60 ton/trip. Factor which influence the fishery product of Bottom set long line and Boat seine is the operasional value.F test analysis is known that all free variable can influence unfree variable significantly, which coefisien rate of determination (R2=R square) for bottom set long line is 96,6% and coefisien rate 97,7% for boat seine with the fault probability < 0,05 or Fhit> T tab Key word : Bottom set long line, Boat seine, Productivity, Pati Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 09:56:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2738 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 1 (2009): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/49523 2025-05-15T10:49:00Z saintek:RSA

nmb a2200000Iu 4500 "231231 2023 eng " 2549-0885 1858-4748 dc Kase, Alfred G.O Department of Fisheries and Marine Science, Artha Wacana Christian University, Jl. Adisucipto 147, Oesapa, Kupang Indonesia 85228 https://sinta.kemdikbud.go.id/authorverification/author/profile/6654323 https://orcid.org/0000-0002-9518-330X Macroalgae live on the bottom of the waters where sunlight can still penetrate like land plants. Like macro algae in general, green algae have chlorophyll or other accessory pigments that are used for photosynthesis. This color composition is used to classify the types of macroalgae. The purpose of this study was to determine the composition of the types of pigments contained in green algae. This research was conducted in September - November 2021 in Bolok Marine Waters, Kupang Regency. The identification process of algae species and pigment extraction was carried out at the Biology Laboratory of Artha Wacana Christian University Kupang, Thin Layer Chromatography (TLC) and Spectrophotometric Methods were used to identify pigment types. The results of the collection found three species of green algae: Ulva lactuca, Ulva reticulata, and Halimeda opuntia, these three types of algae were found in the intertidal zone which is still influenced by tides. Thin Layer Chromatography results for these three green algae obtained 4 - 5 fractions with a range of Retention Factor (Rf) value 0.2 – 1.0. The Rf value of 1 in the first fraction was identified as b-carotene pigment, the Rf value of 0.6 and 0.5 in fractions 2 and 3 was an indicator of chlorophyll pigment, the gray Rf value of 0.4 is a type of pheophytin pigment, while the Rf value of 0 The yellow ,3 and 0.2 are indicators of the type of lutein pigment (xanthophyll). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-12-29 08:03:59 https://ejournal.undip.ac.id/index.php/saintek/article/view/49523 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 4 (2023): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/49523/156830 Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/24916 2022-04-19T17:31:29Z saintek:RSA

nmb a2200000Iu 4500 "201231 2020 eng " 2549-0885 1858-4748 dc RISIKO DAN MITIGASI TRANSPORTASI BENIH SIDAT (GLASS EEL), (STUDI KASUS DI PALABUHANRATU, JAWA BARAT) (Risks and Mitigation of Glass eel Transport (Case Study in Palabuhanratu, West Java)) Maulana, Al Hafidz Dept PSP-FPIK, IPB Purwangka, Fis Dept PSP-FPIK, IPB http://sinta2.ristekdikti.go.id/author/?mod=profile&p=stat Iskandar, Budhi Hascaryo Dept PSP-FPIK, IPB HIRAC; parameter kualitas air; sidat; transportasi glass eel Penangkapan benih sidat (glass eel) untuk kegiatan budidaya dilakukan oleh nelayan menggunakan seser dan kemudian dijual ke pengumpul. Pengumpul mengumpulkan glass eel dari beberapa nelayan dan mendistribusikannya ke tempat pembudidayaan. Banyak glass eel yang mati pada saat ditransportasikan oleh nelayan dan pengumpul. Tujuan penelitian ini adalah untuk mendeskripsikan proses transportasi glass eel, moda transportasinya, dan parameter kualitas air pada saat ditransportasikan dari nelayan sampai ke kolam pembesaran serta mengidentifikasi risiko dan menentukan mitigasi transportasi glass eel. Metode dalam penelitian ini adalah observasi dan wawancara kepada nelayan dan pengumpul mengenai aktifitasnya dan parameter kualitas air yang digunakan. Analisis yang digunakan berupa analisis deskriptif, analisis komparatif, dan analisis risiko dan mitigasi menggunakan metode HIRAC. Hasil penelitian menunjukan bahwa proses transportasi glass eel berawal dari nelayan ke pengumpul. Pengumpul mengumpulkan hasil tangkapan untuk selanjutnya ditransportasikan ke kolam pembesaran. Pentransportasian glass eel dimasukkan ke wadah kantong plastik dan atau cool  box dengan suhu 170C- 290C menggunakan sepeda motor, Salinitas 1ppt- 3ppt, dan kadar DO 6,3mg/L- 7mg/L. Proses transportasi glass eel memiliki risiko yang menyebabkan glass eel stress dan mati. Risiko tersebut dapat dimitigasi menggunakan pengendalian administratif (berupa peringatan kepada nelayan untuk bekerja dengan hati-hati, pemeriksaan secara berkala terhadap kondisi parameter air, kondisi cool box, kondisi kantong plastik (PE)), substitusi (penggantian cool box dan kantong plastik (PE) yang sudah dalam kondisi rusak, mengganti plastik yang lebih tebal, atau merangkap penggunaan plastik), dan rekayasa engineering (penggunaan aerasi dan chiller untuk menjaga kadar DO dan suhu air).   Glass eel fishing for nursery and culture purposes is carried out by fishermen using seser and then sold to collectors. The collectors collected glass eels from several fishermen and distributed them to culturing site. Many glass eels die when transported by fishermen and collectors. This study objectives were describing glass eel transportation process, its transportation modes, and water quality parameters when transported from fishermen to raising pond and identify risks and determine glass eel transportation mitigation. The method used in this study were observation and interviews with fishermen and collectors, regarding their activities along with water quality parameters used. The analysis used are descriptive analysis, comparative analysis, and risk and mitigation analysis using the HIRAC method. The results of research show that process of transporting glass eels started from fishermen to collectors. Collectors collect catches to be transported to raising pond. Glass eel transport carried out using plastic bags and/or cool boxes with temperature of 170C- 290C use the motorcycle, Salinity 1ppt-3ppt, and DO levels 6,3 mg / L-7,0 mg / L. Glass eel transportation process risking glass eel experiencing stress and die. These risks can be mitigated using administrative control (in the form of a warning to fishermen to work carefully, periodic checks on water parameter conditions, cool box conditions, plastic bag conditions (PE)), substitution (replacing cool boxes and plastic bags (PE) that are already in damaged condition, replacing thicker plastics, or using plastic), and engineering   modification (use of aeration and chiller to maintain DO levels and water temperature). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24916 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/10557 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150828 2015 eng " 2549-0885 1858-4748 dc PENGARUH PROBIOTIK KOMERSIAL PADA PAKAN BUATAN TERHADAP PERTUMBUHAN, EFISIENSI PEMANFAATAN PAKAN, DAN KELULUSHIDUPAN BENIH IKAN GURAMI (Osphronemus gouramy) D35-D75 The Effects of Commercial Probiotic in Artificial Feed on the Growth, Feed Utilization Suminto, Suminto Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Chilmawati, Diana Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK   Ikan gurami (Osphronemus gouramy) merupakan komoditas ikan air tawar yang bernilai ekonomis penting, tetapi mempunyai kendala didalam budidaya, misalnya pertumbuhannya lambat  dan pemanfaatan pakan yang kurang efisien.  Salah satu pemecahan masalahnya  adalah dengan pemanfaatan probiotik pada pakan  didalam kultur, khususnya pada stadia larva gurame (Osphronemus gouramy). Penelitian ini bertujuan untuk mengetahui dan mengkaji pengaruh penambahan probiotik komersil terhadap pertumbuhan, efisiensi pemanfaatan pakan dan kelulushidupan larva ikan gurame (Osphronemus gouramy). Materi yang digunakan adalah beberapa  produk probiotik komersial yang dicampurkan pada pakan buatan ikan dengan cara disemprotkan dan setelah didiamkan selama 24 jam diberikan sebagai pakan gurame. Metoda eksperimen dan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 4 kali pengulangan telah dikembangkan pada penelitian ini. Perlakuan yang diujikan adalah tanpa pemberian probiotik pada pakan (A); pemberian probiotik 1 (B); pemberian probiotik 2 (C); dan perlakuan D dengan pemberian probiotik 3 pada pakan. Berat benih gurame (Osphronemus gouramy) per individu 1,86±0,97 g dan panjang 4,11±0,41 cm. Padat penebaran benih gurame pada perlakuan yaitu 2 ekor/liter. Benih gurame diberi makan 3 kali sehari sebanyak 5% dari bobot biomassa. Hasil penelitian menunjukkan bahwa penambahan probiotik pada pakan memberikan pengaruh nyata (P<0,05) terhadap pertumbuhan dan efisiensi pemanfaatan pakan, tetapi tidak berpengaruh nyata (P>0,05) terhadap kelulushidupan benih ikan gurame. Hasil terbaik diperoleh pada pemberian probiotik 1 dengan nilai tingkat pertumbuhan spesifik (SGR) sebesar 1,67±0,42 %,  efisiensi pemanfaatan pakan (22,2±2,6%) dan kelulushidupan (85,0±5,6%). Kriteria kualitas air media kultur masih baik untuk mendukung proses pertumbuhan dan pemanfaatan pakan.   Kata kunci : Probiotik komersial, pakan buatan, gurame (Osphronemus gouramy), dan pertumbuhan   ABSTRACT   Gouramy (Osphronemus gouramy) is  freshwater fish commodity that have high economic value, but it have problems in the culture such as the slow growth and inefficiency of feed utilization.  One of the problem solves is utilization of probiotic bacteria in the artificial feed, especially for fish larvae culture. The purpose of this study was to know and observe the effects of adding commercial probiotics for growth, feed utilization eficiency and survival rate of gouramy (Osphronemus gouramy) from day 35  to day 75. Some commercial probiotics used were sprayed onto artificial feed and after incubated during 24 hours, then give as fish feed in the culture. The experimental methods with completely randomized design (CRD) were employed in this research. The design consisted of 4 treatments and 3 replication, respectively. The treatments tested were without  probiotic added (treatment A), with probiotic 1 (B), with probiotic 2 (C), and the treatment D with added by probiotic 3. The initial density of  fish larvae were 2 inds/liter of water medium with average weight of 1,86 ± 0,27 g and length of 4,15±0,35 cm.  Gouramy fish were fed three times every day with 5% from biomass weight. The  research results shown that the difference adding probiotics in the artificial feed were significantly effects (P<0.05) on the growth and feed utilization efficiency but no significantly effect (P>0,05) on the survival rate of  gouramy (Osphronemus gouramy) in the culture. The best result was in the treatment B (with added by probiotic 1), where  the  best SGR of 1,67±0,42 %,  feed utilization efficiency of 22,2 ± 2,6% and survival rate of  85,0 ± 5,6%.  The water quality criteria of  culture medium were the good supported to the growth, feed  utilization, and survival rate of Gouramy (Osphronemus gouramy) in the culture.  Keywords : Commercial probiotic, artificial feed, Gouramy (Osphronemus gouramy), and growth  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/10557 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/47864 2025-04-15T07:39:12Z saintek:RSA

nmb a2200000Iu 4500 "230831 2023 eng " 2549-0885 1858-4748 dc Irawan, Willy Puspa Departement of Capture Fisheries, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Squid fishing line (Squid Jigger) is one of the fishing gear that is widely used by fishermen in Karimunjawa, Jepara. Squid fishing gear has long been known and operated with lights to attract the attention of squid that are installed in the fishing fleet, over time the squid fishing fleet has increased every year which indirectly increases competition in squid fishing activities. So it is necessary to add a light attractor in the form of a flashing LED light mounted on the main line of the squid fishing line. The purpose of this study was to analyze the effect of adding LED lights to squid fishing gear on catches and the effectiveness of fishing gear. The research method used is experimental fishing with 2 test variables, namely the use of blue and green LED lights with 16 repetitions in 2 fishing operations trips. Based on the research that has been done, the results show that the addition of LED lights has a significant effect on the catch of squid fishing gear with blue LED lights as the most effective in fishing operations because it gets the most catches, namely 7 fish and gets the fastest response from the target fish , namely 43 minutes from the first repetition. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-08-31 14:43:36 https://ejournal.undip.ac.id/index.php/saintek/article/view/47864 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 2 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/67122 2025-04-15T08:15:44Z saintek:RSA

nmb a2200000Iu 4500 "241027 2024 eng " 2549-0885 1858-4748 dc MARKETING STRATEGY FOR PROCESSED SMOKED FISH PRODUCTS ON THE MICRO, SMALL, AND MEDIUM SCALE POKLAHSAR IN TEGAL CITY Aisah, Aisah Master of Fisheries Management Student, Universitas Terbuka Mudzakir, Abdul Kohar Capture Fisheries Department, Fisheries and Marine Sciences, Diponegoro University Noviyanti, Rinda Fisheries Management Study Program, Universitas Terbuka marketing strategy; smoked fish; SWOT analysis; MSME Tegal City, located on the northern coast of Central Java, boasts abundant marine resources that support its thriving fisheries sector . However, the city faces various sustainable challenges in the processing of smoked fish by micro, small, and medium-scale Processing and Marketing Groups (Poklahsar), including obstacles in production, marketing, and product development. This research aims to formulate marketing strategies for smoked fish products processed by Poklahsar to increase sales. Using a qualitative and descriptive approach, this study involved 36 respondents from smoked fish processors. Data were collected through observation, interviews, and questionnaires to understand the socio-economic and technical conditions of Poklahsar. SWOT analysis was conducted to identify internal and external factors affecting marketing. The results indicate that the main strengths of the smoked fish business lie in the quality of raw materials, the availability of labor, and the market acceptance of the product's unique taste. However, weaknesses include limited packaging and marketing capabilities, as well as a lack of knowledge about information technology. Externally, there are opportunities to enter modern markets and utilize marketing technology, but challenges such as poor sanitation and intense competition pose threats. Based on the SWOT analysis, the business is positioned in quadrant 2, indicating that product diversification is the best approach to enhance competitiveness. Key recommendations include packaging innovation, capacity building for business actors, collaboration with the government, and strengthening distribution channels. Implementing these strategies is expected to increase sales and competitiveness of smoked fish products in Tegal City. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-11 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/67122 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 3 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/42096 2021-12-03T13:10:10Z saintek:RSA

nmb a2200000Iu 4500 "211021 2021 eng " 2549-0885 1858-4748 dc SPATIAL DISTRIBUTION ANALYSIS OF FIELD BATHYMETRY AND LANDSAT 8 SATELLITE IMAGERY ON THE FISH POTS CATCH IN JEPARA REGENCY Zulyani, Zulyani BBPI Semarang, Coastal Resources Management, Department of Aquatic Resources, Faculty of Fisheries and Marine Science Diponegoro University, Indonesia Hartoko, Agus Coastal Resources Management, Department of Aquatic Resources, Faculty of Fisheries and Marine Science Diponegoro University, Indonesia Boesono, Herry Coastal Resources Management, Department of Aquatic Resources, Faculty of Fisheries and Marine Science Diponegoro University, Indonesia Spatial distribution; bathymetry; pots; landsat 8; erMapper; Jepara. Pots operated are traping fishes and passived, making the fish easier to get in and difficult to escape. Problems faced  fisherman is difficulty finding ideal fishing grounds. This study to analyze real bathymetry spatial distribution and Satellite Imagery Landsat 8 with operationing of pots in Jepara. This study uses the methods purposive sampling with primary data is real bathymetry, and fish measures from pots catching. Secondary data is tides local and satellite imagery Landsat 8.  Result of polynomial regression Landsat 8 bathymetry to real bathymetry is 25.88%, whereas the Landsat 8 bathymetry against long size of fish catched is only 5% and 3.3% bathymetry was able to explain the fish weight variables. On real bathymetry with long size of fish is only 3.6%  define long size variables and 1.6% for weight variables. Hypothesis is tested with linear regression in SPSS 22. Test results assumed spatial distribution of bathymetry had no effect on the catch of pots. Based on a simple linear regression test, the effect values is only 0.9 % while on fish weight there was no effect at all. Results of real bathymetry analysis with satellite image Landsat 8 have a relationship with a coefficient of determination value is 0.258). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/42096 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/42096/129634 https://ejournal.undip.ac.id/index.php/saintek/article/download/42096/129638 Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/67083 2025-04-25T14:22:56Z saintek:RSA

nmb a2200000Iu 4500 "250416 2025 eng " 2549-0885 1858-4748 dc Fatmawati, Dwi Universitas Tanjungpura Lestari, Oke Anandika Dewi, Yohana Sutiknyawati Kusuma Ikan kaya akan nutrisi, namun kurang diminati terutama oleh anak-anak. Salah satu upaya yang dapat dilakukan untuk meningkatkan minat konsumsi ikan adalah inovasi pengolahan ikan menjadi permen jelly. Kendala dalam mengolah ikan adalah adanya flavor dan aroma amis. Salah satu alternatif yang dapat dilakukan adalah dengan mengkombinasikannya dengan nanas. Tujuan dari penelitian ini untuk memperoleh rasio ikan patin dan nanas terbaik pada pembuatan permen jelly berdasarkan karakteristik fisikokimia dan organoleptik (metode deskriptif dengan menggunakan 30 orang panelis semi terlatih). Perlakuan dalam penelitian ini adalah 5 rasio ikan patin dan nanas dengan 5 kali ulangan. Rasio ikan patin dan nanas yang digunakan adalah 2:8, 3:7, 4:6, 5:5, dan 6:4. Parameter yang digunakan adalah kadar air, kadar abu, kadar protein, gula reduksi, warna, dan uji organoleptik. Hasil penelitian menunjukkan perlakuan rasio ikan patin dan nanas mempengaruhi karakteristik fisikokimia (kadar abu, kadar protein, dan warna L*, a*, dan b*) dan karakteristik sensori (warna) pada permen jelly. Permen jelly dengan rasio ikan patin:nanas 2:8 merupakan perlakuan terbaik. Karakteristik fisikokimia permen jelly ikan patin dan nanas terbaik memiliki kadar air (16,32%), kadar abu (2,84%), kadar protein (2,62%), gula reduksi (55,12%), dan warna L* (21,94), a* (3,44), b* (7,82). Karakteristik sensori permen jelly tersebut yaitu memiliki penampakan mengkilap, berwarna kuning orange, beraroma tidak amis, memiliki rasa yang manis, bertekstur kenyal, dan kesukaan keseluruhan adalah lebih suka. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-04-16 03:41:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/67083 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 1 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11151 2020-04-17T19:23:24Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc FAKTOR-FAKTOR YANG MEMPENGARUHI HASIL PRODUKSI UNIT PENANGKAPAN PURSE SEINE (GARDAN) DI FISHING BASE PPP MUNCAR, BANYUWANGI, JAWA TIMUR Factors Affecting the Production of Purse Seine Unit in Fishing Base Muncar Fishing Port Banyuwangi, East Java Pratama, M. Agung Didi Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Hapsari, Trisnani Dwi Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Triarso, Imam Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Purse Seine Gardan; faktor produksi; Banyuwangi   Sumberdaya ikan di perairan Selat Bali terjadi peningkatan dari tahun ke tahun, sehingga meningkatkan jumlah armada unit penangkapan Purse Seine untuk menjaring Lemuru yang berdampak over eksploitasi pada tahun 2010. Untuk mengatasi hal tersebut kembali dijalankan peraturan mengenai pembatasan unit armada Purse Seine guna menekan laju peningkatan armada penangkapan. Kebijakan tersebut berdampak kembali stabilnya unit armada alat tangkap Purse Seine dan meningkatkan hasil tangkapan  ikan khususnya Lemuru di tahun 2011-2014 secara bertahap. Efisiensi penggunaan armada kapal penangkap ikan yang menggunakan alat tangkap Purse Seine sangat terkait dengan masalah identifikasi faktor-faktor produksi yang mempengaruhi produktivitas dan efektifitas dalam memanfaatkan sumberdaya ikan. Untuk itu perlu dikaji tentang faktor produksi agar mengetahui faktor-faktor apa saja yang mempengaruhi hasil tangkapan guna meningkatkan hasil tangkapan nelayan. Metode yang digunakan dalam penelitian ini adalah studi kasus dengan analisis deskriptif dan metode pengambilan sampel purposive sampling. Metode analisis yang digunakan berupa uji asumsi klasik dan fungsi produksi Cobb-Douglas. Hasil penelitian menunjukan bahwa faktor-faktor yang berperan nyata pada unit alat tangkap Purse Seine di PPP Muncar, Banyuwangi, Jawa Timur yaitu lama trip (X1), jumlah ABK (X2), Watt (X3), Panjang Jaring (X4), Lebar/kedalaman Jaring (X5), Kekuatan Mesin (X6), BBM (X7) dan Pengalaman Juragan (X9). Hubungan antara faktor-faktor produksi dengan produksi alat tangkap Purse Seine di PPP Muncar, Banyuwangi dapat direpresentasikan dalam model fungsi Cobb-Douglas, yaitu sebagai berikut: ln Y=4,441–0,494 ln X1+0,318 ln X2–0,088 ln X3+0.,104 ln X4+0,375 ln X5+0,442 ln X6–0,103 ln X7+0,033 ln X9   Kata kunci: Purse Seine ‘Gardan’, faktor produksi, Banyuwangi     ABSTRACT   The increase of fisheries stocks in the Bali Strait year after year multiplied the number of fishing fleets to captured Lemuru and caused the over exploitation in 2010. To overcome the issue, the regulation on Purse Seine fleets restrictions was reapplied to control the increase of fishing fleets. The policy affected the stability of Purse Seine fishing fleets and gradually improved the captured, particularly Lemuru, in 2011 - 2014. The efficiency of Purse Seine fishing fleets usage was strongly related to the identifying issues of production factors influencing the productivity and effectiveness of fish resource utilization. Therefore, it was necessary to identified the production factors in order to determine fishing increasing factors eventually to improve the fishermen's captured. The method in this research was descriptive case study with purposive sampling technique. The analysing method was  classical assumption test and the production function of Cobb-Douglas. The results showed that factors significant in fishing production  Purse Seine in Muncar Fishing Port, Banyuwangi, East Java were, Fishing Trip (X1), the number of Crew (X2), Light Intensity (X3), Length of Purse Seine (X4), Width of Purse Seine (X5), Engine Power (X6), fuel (X7), and Experience Squire (X9). The relationship between the factors of production to the production of Purse Seine fishing gear in Muncar Fishing Port, Banyuwangi can be represented in the model of the Cobb-Douglas function, namely as follows: ln Y=4.441–0.494 ln X1+0.318 ln X2 –0.088 ln X3+0.104 ln X4+0.375 ln X5+0.442 ln X6–0.103 ln X7+0.033 ln X9  Keywords: Purse Seine, factors of production, Banyuwangi  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11151 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21341 2020-04-17T19:28:52Z saintek:RSA

nmb a2200000Iu 4500 "180812 2018 eng " 2549-0885 1858-4748 dc EFEKTIVITAS EKSTRAK BUNGA KENANGA (Cananga odorata) SEBAGAI BAHAN ANESTESI PADA TRANSPORTASI BENIH NILA MERAH (Oreochromis sp.) TANPA MEDIA AIR (The Effectiveness of Cananga Flower (Cananga odorata) as an Anesthetic Material On Trnsportation Red Tilapia Fry (Oreochromis sp.) Withoutt Water Media) Maryani, Maryani Program Studi Budidaya Perairan Jurusan Perikanan dan Kelautan Fakultas Pertanian, Universitas Lampung Efendi, Eko Program Studi Budidaya Perairan Jurusan Perikanan dan Kelautan Fakultas Pertanian, Universitas Lampung Utom, Deny Sapto Chondro Program Studi Budidaya Perairan Jurusan Perikanan dan Kelautan Fakultas Pertanian, Universitas Lampung Bunga kenanga; anestesi; ikan nila; tansportasi sistem kering Bunga kenanga (Cananga odorata) mengandung senyawa eugenol yang mempunyai sifat anestesi, sehingga berpotensi sebagai bahan anestesi dalam transportasi ikan. Penelitian ini bertujuan untuk mengetahui pengaruh lama waktu transportasi terhadap survival rate (SR) benih nila merah pada uji simulasi transportasi. Metode penelitian yang digunakan untuk menentukan nilai konsentrasi adalah analisis probit. Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL) dengan selang kepercayaan 95%. Hasil analisis probit uji LC50-96 jam nilai yang didapat yaitu 93,97 ppm, dan analisis probit pada uji EC50-1 jam yaitu 61,40 ppm. Uji transportasi menunjukan nilai kelangsungan hidup tertinggi terdapat pada perlakuan 1 jam dengan nilai rata-rata mencapai 91,1%. Hasil penelitian menunjukan bahwa perbedaan waktu berpengaruh nyata terhadap kelangsungan hidup benih nila merah.   The Flower kenanga (Cananga odorata) contains euganolic substances that have trait anesthetic, therefore potentially as anesthesia for fish transportation. This research is intended to identify the effects of the transport duration towards the survival rate of seed red tilapia using a transportation simulation. The scientific method used in this research to determine the level of concentration used probit analysis. The design that was used was the complete random design (RAL) with a confidence interval of 95%. The analysis result of test probit LC50-96 hours was 93,97 ppm, and the analysis result of test probit EC50-1 hour was 61,40 ppm. The transportation test showed that the highest life sustainability was achieved during the 1-hour test with an average value of 91,1%. The results of the experiment showed that difference in duration has a real effect on life sustainability of the seed red tilapia. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21341 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6768 2025-04-26T12:35:06Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc Aplikasi Teknologi Aquaponic Pada Budidaya Ikan Air Tawar Untuk Optimalisasi Kapasitas Produksi Nugroho, Ristiawan Agung Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Pambudi, Lilik Teguh Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Chilmawati, Diana Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Haditomo, Alfabetian Herjuno Condro Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang The experiment was conducted to acknowledge the effect of seed to the media using aquaponic system and to  identify the  influence of aquaponic system to the media’s  water quality of Oreochromis  niloticus’s fingerling to increase production capacity. The experiment was conducted at fish farmer’s  fingerling ponds at Muntilan, Magelang (Central Java) for 2 weeks observations.   It used completely  randomized design, were reared at 200,400 and 600 fish density with three replications over to 2 m2 ponds with aquaponic system and 400 densities as a control to non-aquaponic system.  The result of experiment showed that there was an influence of seed’s density to cultivan’s growth that used aquaponic system, especially to total length of fish.  The aquaponic system is also influence the fixing of media water Oreochromis niloticus fingerling, especially the reduction of ammonias (NH3).   Key words: aquaponic, water quality, red tilapia, fingerling Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6768 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/37443 2022-04-19T17:13:22Z saintek:RSA

nmb a2200000Iu 4500 "220325 2022 eng " 2549-0885 1858-4748 dc Novianty, Hilda Lembaga Ilmu Pengetahuan Indonesia Rosmawati, Arvita Jasmadi, Jasmadi Pemanfaatan Eucheuma sp. yang dapat diaplikasikan pada bidang pangan dan non pangan menjadikan Eucheuma sp. diminati pasar, sehingga budidaya Eucheuma sp. sedang digalakkan. Budidaya Eucheuma sp. di Pulau Pari telah dimulai sejak tahun 1960an, hanya saja seiring perkembangan zaman pembudidaya banyak yang beralih ke sektor wisata, padahal peluang untuk mengembangkan usaha budidaya dan olahan Eucheuma sp.  di Pulau Pari masih luas. Penelitian ini bertujuan untuk melihat kelayakan usaha budidaya dan olahan dari Eucheuma sp. di Pulau Pari, serta mengidentifikasi kendala dan upaya perbaikan pengembangannya. Metode penelitian menggunakan data primer, interview dan studi literatur dalam menghitung kelayakan analisis pendapatan usaha, seperti analisis pendapatan,  Revenue Cost Ratio (R/C), Payback Periode (PP), Break Even Point (BEP), Net Present Value (NPV), Internal Rate of Return (IRR) dan Net B/C. Hasil dari analisis usaha budidaya Eucheuma sp. menunjukkan nilai R/C: 1,43; PP: 2,35th, NPV Rp. 20,474,309, IRR 31.84%, Net B/C 1,65 dan pendapatan sebesar Rp. 1,209,555/bulan. Sedangkan untuk usaha pengolahan menunjukkan nilai R/C : 2,18; PP : 0,36 tahun, NPV Rp.  82,676,917, IRR dan Net B/C > discount factor dan pendapatan sebesar Rp. 1,950,000/bulan. Kajian ini menunjukkan bahwa aktivitas budidaya dan pengolahan Eucheuma sp. di Pulau Pari menunjukkan layak dilaksanakan. Selain itu BEP kedua usaha tersebut juga menunjukkan titik impasnya berada di bawah jumlah produksi dan harga jual riil, sehingga usaha tersebut dinilai efisien secara ekonomi. Pada pelaksanaan usaha-usaha ini ditemukan terdapat kendala-kendala teknis maupun non teknis sehingga diperlukan kerjasama yang tepat antara pemerintah, pengusaha dengan instansi yang berkepentingan untuk keberlanjutan usaha.   The utilization of Eucheuma sp. which could be applied for either food or non-food purposes, drew a steady market demand, so the production was increased. The cultivation has been started since the 1960s in Pulau Pari and the development opportunities were still higher, however the farmers tended to shift their focus to tourism business. The purpose of this study was to determine the viability and identify the obstacles to cultivation and processing of Eucheuma sp. businesses in Pulau Pari. This study relied on primary data from interviews and secondary data from literature reviews to calculated feasibility factors, such as incomes, Revenue Cost Ratio (R/C), Payback Periode (PP), Break Even Point (BEP), Net Present Value (NPV), Internal Rate of Return (IRR), and Net B/C. This study showed feasibility assessment for Eucheuma sp. cultivation business were 1.43 for R/C; 235 years for PP; 20,474,309 IDR for NPV; 31.84% for IRR; 1,65 for Net B/C and 1,209,555 IDR/month for incomes, respectively. Whereas, for Eucheuma sp. processing business were 2.18 for R/C; 0.36 years for PP; 82,676,917 IDR for NPV; IRR and Net B/C were more than discount factor and 1,950,000 IDR/month for incomes, respectively. BEP showed were below the real of production quantity and selling price. This showed both cultivating and processing of Eucheuma sp. were economically viable. Some technical and non-technical obstacles emerged amid to those two businesses, therefore, collaboration with government and non-government institutions is one of the promising approaches to achieve the sustainability. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/37443 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/37443/113415 https://ejournal.undip.ac.id/index.php/saintek/article/download/37443/113416 https://ejournal.undip.ac.id/index.php/saintek/article/download/37443/113417 https://ejournal.undip.ac.id/index.php/saintek/article/download/37443/113418 https://ejournal.undip.ac.id/index.php/saintek/article/download/37443/113420 https://ejournal.undip.ac.id/index.php/saintek/article/download/37443/113422 https://ejournal.undip.ac.id/index.php/saintek/article/download/37443/113423 Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/71171 2025-08-04T07:39:01Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Paulangan, Yunus Pajanjan Marine Science Cenderawasih University Jl. Kampwolker Kampus Baru Uncen Waena Jayapura https://www.uncen.ac.id/ https://orcid.org/0000-0003-1374-4685 Warpur, Maklon https://www.uncen.ac.id/ Manalu, Khristhoper Aris Arianto Barapadang, Barnabas Tangkelayuk, Herman Hisyam, Muhammad https://orcid.org/0000-0001-5061-9248 Rumahorbo, Basa Tunggul Ramba, Fitria Yunia Kainama, Tamara Louraine Jeanette Baransano, Natan Social-Ecological System (SES) sebagai konsep interaksi manusia dan alam sangat penting dalam konteks pengelolaan sumber daya di kawasan pesisir secara berkelanjutan. Oleh karena itu, pemahaman terhadap komponen dan pola interaksi sebagai bagian dari konsep SES sangat penting. Penelitian ini bertujuan untuk mengeksplorasi karakteristik SES, yakni komponen dan pola interaksinya di Kawasan Teluk Yotefa. Penelitian ini menggunakan metode kualitatif dengan pendekatan deskriptif. Data yang digunakan bersumber dari data primer dan sekunder. Data primer diperoleh melalui survey langsung di lapangan dengan cara observasi dan wawancara.  Wawancara dilakukan terhadap 120 responden yang mewakili masyarakat kampung terpilih, instansi pemerintah,  swasta dan dari Lembaga Swadaya Masyarakat (LSM) yang dipilih secara purposive sampling. Data sekunder diperoleh melalui studi literatur dari berbagai jurnal, laporan penelitian dan sumber data ilmiah lainnya yang relevan dengan kajian. Data yang telah dikumpulkan dibahas secara deskriptif dan triangulasi. Hasil penelitian menunjukkan keragaan SES yang cukup beragam, yakni terdapat 6 (enam) komponen pembentuk SES di Teluk Yotefa dengan pola interaksi yang kompleks dan saling ketergantungan, dimana masyarakat sangat tergantung pada sumber daya yang ada di kawasan Teluk Yotefa, dan sebaliknya keberadaan dan kualitas sumber daya dipengaruhi oleh kondisi dan keberadaan masyarakat. Penelitian ini menunjukkan interaksi yang kuat dan saling bergantung antara manusia dan sumber daya alam sehingga perlu pengelolaan yang mampu meningkatkan ketahanan dalam kerangka SES. Oleh karena itu, perlu dukungan melalui peran pemerintah, swasta dan NGO dalam merespon kebutuhan masyarakat untuk meningkatkan kesejahteraannya tanpa merusak lingkungan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71171 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13196 2020-04-17T19:25:15Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc HUBUNGAN TEKSTUR SEDIMEN DENGAN KANDUNGAN BAHAN ORGANIK DAN KELIMPAHAN MAKROZOOBENTHOS DI MUARA SUNGAI BANJIR KANAL TIMUR SEMARANG The Relation of Sediment Texture to Organic Matter and Macrozoobenthos Abundance in the Estuarine of Banjir Kanal Timur River Putri, Angelia Maharani Setya Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu kelautan, Universitas Diponegoro Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu kelautan, Universitas Diponegoro Widyorini, Niniek Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu kelautan, Universitas Diponegoro Tekstur Sedimen; Bahan Organik; Makrozoobenthos   Tekstur sedimen terdiri atas fraksi pasir (sand), lumpur (silt), dan liat (clay). Sedimen atau substrat dasar yang terus menerus menumpuk serta adanya bawaan nutrien dari mahluk hidup maupun limbah akan membentuk kandungan bahan organik. Kandungan nutrien digunakan oleh makrozoobenthos sebagai salah satu kebutuhan pakan untuk kelangsungan hidup makrozoobenthos. Selain itu, makrozoobenthos ditemukan hidup dalam sedimen. Jenis tekstur sedimen serta kandungan fraksi mempengaruhi kelimpahan makrozoobenthos itu sendiri. Tujuan dari penelitian ini adalah untuk mengetahui jenis tekstur sedimen, kandungan bahan organik, kelimpahan makrozoobenthos, dan hubungan ketiga variabel. Penelitian ini menggunakan metode deskriptif. Jenis tekstur pada setiap stasiun didominasi oleh lempung. Jenis makrozoobenthos yang didapatkan berasal dari famili Ciratulidae, Nephtydae, Nereidae, Tubificidae dan Arcidae. Berdasarkan hasil penelitian dapat disimpulkan bahwa hubungan antara ketiga variabel yang diamati adalah semakin besar persentase lempung, maka diikuti pula oleh kandungan bahan organik dan melimpahnya makrozoobenthos.    Sediment Texture consists of sand, silt, and clay. Sediment cumullation and transport nutrient from organisms and domestic waste will make organic matter. Nutrient was used by macrozoobenthos as feeding is needed to survive. Moreover, macrozoobenthos was found in sediment itself. Sediment texture and fraction contain were influencing the abundance of macrozoobenthos.This research was aimed to know kinds of sediment texture, organic matter contain, the abundance of macrozoobenthos, the relationship among sediment fractions with organic matter and macrozoobenthos in the estuary of Banjir Kanal Timur Semarang. This research was using descriptive method. Texture sediment in every station was dominated by loam. Kinds of macrozoobenthos was found from Famili Ciratulidae, Nephtydae, Nereidae, Tubificidae, and Arcidae. Based on research, It was concluded that the relationship between three variables was when the percentage of loam was increasing, then organic matter contain was also increasing, and macroozobenthos overflow.    Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13196 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/42361 2022-10-21T03:37:00Z saintek:RSA

nmb a2200000Iu 4500 "220906 2022 eng " 2549-0885 1858-4748 dc Prasetiyono, Eva Departement of Aquaculture, Universitas Bangka Belitung Bidayani, Endang Robin, Robin Syaputra, Denny Budidaya udang vaname pada kawasan perairan pesisir Bangka Tengah dilakukan secara intensif menggunakan pakan buatan sebagai pakan utama udang. Permasalahan yang muncul pada setiap budidaya intensif yaitu sisa pakan yang tidak termakan dan sisa metabolisme berupa feses dan urin yang berpotensi menyebabkan kesuburan ekosistem perairan. Dekomposisi bahan organik oleh mikroorganisme akan menghasilkan senyawa nitrogen dalam bentuk nitrat dan fosfat. Senyawa-senyawa ini merupakan nutrisi yang diserap oleh tumbuhan sehingga berpotensi menyebabkan pertumbuhan berlebih dari mikroalga. Penelitian ini bertujuan menguji dan menganalisis kandungan nitrat, fosfat dan parameter kualitas air lainnya serta kesesuaian air limbah yang dihasilkan pada lokasi buangan tambak udang vaname di Kabupaten Bangka Tengah. Lokasi yang dijadikan penelitian yaitu Tambak Udang TLTA (Lokasi 1), Tambak Udang ALB (Lokasi 2), dan Tambak Udang SDL (Lokasi 3). Metode penelitian yang digunakan adalah metode analisis deskriptif kuantitatif. Hasil penelitian menunjukan bahwa Kandungan nitrat pada lokasi 1, 2 dan 3 masing-masing sebesar 0,92±0,18 mg/L, 0,89±0,14 mg/L, dan 0,93±0,21 mg/L dan kandungan fosfat masing-masing sebesar 0,25±0,09 mg/L, 0,15±0,11 mg/L, dan 0,23±0,15 mg/L. Kandungan nitrat dan fosfat tersebut masih memenuhi kriteria baku mutu standar air buangan limbah tambak namun terdapat potensi eutrofikasi pada saat limbah tersebut masuk ke perairan umum. Hal ini dikarenakan nilai nitrat dan fosfat tersebut berada pada kisaran yang dapat menyebabkan terjadinya eutrofikasi. Kandungan parameter kualitas air TSS, BOD, COD, kekeruhan, suhu, salinitas, pH dan DO pada semua titik lokasi menunjukan nilai yang masih memenuhi standar baku mutu yang menggambarkan bahwa tidak terdapat ketercemaran dari limbah tambak udang yang dihasilkan.   Pacific white shrimp shrimp cultivation in the coastal waters of Central Bangka is carried out intensively using artificial feed as the main shrimp feed. Problems in intensive cultivation are uneaten feed residues and metabolic wastes in the form of feces and urine which have the potential to cause fertility in aquatic ecosystems. Decomposition of organic matter by microorganisms will produce nitrogen compounds in the form of nitrate and phosphate. They will be absorbed by plants that have the potential to cause blooming algae. This study aims to test and analyze the content of nitrate, phosphate and other water quality parameters as well as the suitability of wastewater generated at the disposal site of pacific white shrimp ponds in Central Bangka Regency. The research locations were TLTA Shrimp Pond (Location 1), ALB Shrimp Pond (Location 2), and SDL Shrimp Pond (Location 3). The research method used quantitative descriptive analysis method. The results showed that the nitrate content at locations 1, 2 and 3 were 0.92±0.18 mg/L, 0.89±0.14 mg/L, and 0.93±0.21 mg/L, respectively, and phosphate content of 0.25±0.09 mg/L, 0.15±0.11 mg/L, and 0.23±0.15 mg/L, respectively. The nitrate and phosphate content still meets the standard quality criteria for pond waste water, but there is potential for eutrophication when they flow into estuary or seas area. Their values are in the range that can cause eutrophication. The content of water quality parameters TSS, BOD, COD, turbidity, temperature, salinity, pH and DO at all location points shows values that still meet quality standards which illustrate that there is no pollution from shrimp pond waste produced. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/42361 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/68498 2025-10-03T03:26:09Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc Mursyidin, Mursyidin Universitas Islam Negeri Ar-Raniry Banda Aceh https://orcid.org/0000-0002-7719-3889 Sabaruddin, Sabaruddin Naldi, Roji April Syafari, Muhammad Informasi daerah potensi penangkapan ikan sangat diperlukan oleh nelayan untuk mendukung proses penangkapan ikan, dan website dapat menjadi media yang efektif untuk menyajikannya. Penelitian ini bertujuan untuk mengembangkan dan mengevaluasi sistem informasi berbasis web yang menyajikan zona potensi penangkapan ikan di wilayah Aceh guna meningkatkan efisiensi dan hasil tangkapan nelayan. Sistem dikembangkan menggunakan metodologi agile dan memanfaatkan data citra satelit Aqua MODIS untuk memetakan parameter lingkungan seperti suhu permukaan laut dan klorofil-a. Evaluasi sistem dilakukan melalui pengujian performa teknis menggunakan PageSpeed Insights serta penilaian persepsi pengguna dengan kuesioner berbasis likert yang mencakup aspek kegunaan, efisiensi, reliabilitas, kemudahan belajar, dan kepuasan pengguna. Hasil uji validitas (r ≈ 0,75) dan reliabilitas (Cronbach’s Alpha ≈ 0,821) menunjukkan instrumen survei sangat layak dan konsisten. Analisis umpan balik menunjukkan bahwa kemudahan penggunaan, desain antarmuka, dan kualitas informasi merupakan keunggulan utama sistem, masing-masing memperoleh lebih dari 95% umpan balik positif, dengan tingkat kelayakan tertinggi pada aspek kegunaan (86,67%) dan kualitas informasi (85,38%). Namun, aspek kinerja sistem (81,54%) dan kepuasan pengguna (78,46%) masih perlu ditingkatkan. Secara keseluruhan, sistem dinilai sangat layak (83,62%) dan mampu memenuhi kebutuhan mayoritas pengguna, meskipun perbaikan pada kinerja dan kepuasan pengguna tetap diperlukan untuk meningkatkan penerimaan dan manfaat sistem di kalangan nelayan Aceh. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/68498 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16818 2020-04-17T19:26:32Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc AKTIVITAS ANTIBAKTERI EKSTRAK LAMUN (Cymodocea rotundata) TERHADAP BAKTERI Staphylococcus aureus DAN Escherichia coli (Antibacterial Activities of Seagrass Extracts (Cymodocea rotundata) Against Staphylococcus aureus and Escherichia coli) Septiani, Septiani Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Dewi, Eko Nurcahya Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Wijayanti, Ima Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Lamun Cymodocea rotundata;Ekstrak; Aktivitas antibakteri;Staphylococcus aureus;Escherichia coli Cymodocea rotundata  merupakan salah satu jenis lamun yang berpotensi sebagai antibakteri. Senyawa bioaktif yang bersifat sebagai antibakteri adalah fenol, flavonoid dan tanin. Tujuan penelitian ini adalah untuk mengetahui perbedaan lama inkubasi dan konsentrasi ekstrak lamun C. rotundata yang berbeda terhadap aktivitas antibakteri S. aureus dan E. Coli. Metode penelitian yang digunakan yaitu experimental laboratories dengan menggunakan rancangan dasar penelitian Rancangan Acak Lengkap (RAL) dengan pola faktorial, pola terbagi oleh faktor lama inkubasi bakteri (24 jam, 48 jam dan 72 jam) dan perbedaan konsentrasi ekstrak lamun (5%, 10% dan 15%). Data dianalisis menggunakan SIDIK RAGAM dan dilakukan analisis lanjut Beda Nyata Jujur (BNJ), apabila terdapat perbedaan pada perlakuan. Ekstrak lamun C. rotundata efektif sebagai antibakteri dengan kategori sedang yaitu zona hambat berkisar antara 5-10 mm. Konsentrasi optimum untuk menghambat S.aureus dan E.coli adalah 15% dengan lama inkubasi 48 jam dengan zona hambat yang dihasilkan masing-masing sebesar 6, 123 mm. Dan 5, 833 mm. Cymodocea rotundata is a type of seagrass that has a potential as an antibacterial. Bioactive compounds which act as such as antibacterial phenols, flavonoids and tannins. The purpose of this study was to determine the effect of different concentration and time of incubation  of seagrass C.rotundata as antibacterial against  S. aureus and E. coli. The method used was experimental laboratories using the basic design of the study completely randomized design (CRD) with factorial pattern (2 factor). The first factor were different concentration (5%, 10% and 15% ) and second factor were time of incubations (24 hours, 48 hours and 72 hours). Data were analyzed using ANOVA and conducted a further test Honestly Significant Difference (HSD), if treatment gave significant effect. C. rotundata extracts had antibacterial activity with medium category which inhibition zone ranges from 5-10 mm. The optimum concentration for inhibiting S. aureus and e. coli were 15% with incubation time of 48 hours resulting inhibition zone 6,123 mm and 5,833 respectively. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16818 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/21813 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190727 2019 eng " 2549-0885 1858-4748 dc DAERAH POTENSI PENANGKAPAN IKAN TEMBANG (Sardinella fimbriata) DI LAUT JAWA BERDASARKAN SATELIT AQUA MODIS (Potential Fishing Ground of Fringe Scale Sardine (Sardinella fimbriata) in the Java Sea based on Aqua Modis Satellite) Maulina, Irma Dwi Capture Fisheries of Diponegoro University Triarso, Imam Capture Fisheries of Diponegoro University Prihantoko, Kukuh Eko Capture Fisheries of Diponegoro University Aqua Modis; SPL; Klorofil-a; Daerah Penangkapan Ikan; Ikan Tembang; Laut Jawa Laut Jawa merupakan perairan dengan potensi ikan pelagis kecil yang didominasi ikan Tembang. Potensi tersebut dapat dimanfaatkan secara maksimal melalui pengetahuan daerah potensi penangkapan ikan. Penentuan DPI (Daerah Penangkapan Ikan) ikan pelagis oleh nelayan Pukat Cincin (mini purse seine) yang berbasis di PPN Pekalongan masih menggunakan cara tradisional melalui pengalaman terdahulu sehingga hasilnya kurang maksimal. Tujuan penelitian ini mengkaji nilai rata-rata suhu permukaan laut (SPL) dan konsentrasi klorofil-a secara musiman selama 3 tahun (2016-2018) melalui interpretasi citra satelit Aqua Modis serta menganalisis pengaruhnya terhadap hasil tangkapan ikan Tembang (Sardinella fimbriata). Sehingga didapat peta potensi DPI Ikan Tembang pada perikanan mini purse seine di Laut Jawa yang berbasis di PPN Pekalongan. Metode pengambilan data dilakukan melalui observasi lapangan. Metode penentuan daerah potensi penangkapan ikan dilakukan melalui pendekatan SPL dan konsentrasi klorofil-a dengan memperhatikan jalur penangkapan dan kedalaman perairan. Hasil yang didapat yakni rata-rata produksi ikan Tembang tertinggi pada tahun 2016 hingga 2018 di Laut Jawa didapat pada musim peralihan I dengan SPL 28,86oC dan konsentrasi klorofil-a 0,55 mg/m3. Analisis pengaruh SPL dan Klorofil-a terhadap hasil tangkapan dilakukan melalui regresi berganda dengan menyertakan uji asumsi klasik. Pengaruh SPL dan Klorofil-a terhadap hasil tangkapan dinilai cukup kuat terlihat dari koefisien korelasi (R) 0,795. Koefisien determinasi (R2) 0,63, artinya SPL dan klorofil-a dapat menjelaskan hasil tangkapan 63%. Terdapat 3 lokasi yang berpotensi sebagai daerah penangkapan di Laut Jawa tepatnya Utara Kota Pekalongan yakni di perairan Tegal, Pemalang dan Pekalongan dengan daerah potensi terluas berada di perairan Pekalongan.   The Java Sea is a water region with potential pelagic fish. Mini purse seine fisheries with fishing base on PPN Pekalongan was determined fishing ground by traditional way, so the result was not optimal. The research aims to observe seasonal variability of sea surface temperature (SST) and chlorophyll-a concentration for 3 years (2016-2018) from satellite image data Aqua Modis interpretation and analyze the relationship between catch and SST as well as between catch and chlorophyll-a. Final result from this research is map of Fringe Scale Sardine (Sardinella fimbriata) fishing ground for mini purse seine fishery in the Java Sea. This research apllied the theory that fishing ground can be determined by SST and chlorophyl-a. The results showed that the highest catch value in the Java Sea during 2016 till 2018 was occurred on transitional season while SST 28,86°C and chlorophyll-a concentration 0,55 mg/m³. This research use multiple regression which start by classical assumption test to analyze the relationship between catch and SST as well as between catch and chlorophyll-a. Also obtained correlation between SST and concentration of chlorophyll-a with the catch of Fringe Scale Sardine indicated strong correlation coeffisien (R) 0,795. While determination coefficient (R2) 0,63 indicated that SST and chlorophyll-a can explain 63% of catch value. Fishing grounds potential of pelagic fish especially Fringe Scale Sardine were found located along the Java Sea exactly Tegal, Pemalang and Pekalongan which large potential were located in Pekalongan water region. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21813 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6835 2025-04-26T12:52:11Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc The Depth Influence to the Morphology and Abundance of Corals at Cemara Kecil Island, Karimunjawa National Park Suryanti, Suryanti Staf Pengajar Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Supriharyono, Supriharyono Staf Pengajar Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Roslinawati, Yulia Staf Pengajar Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro The dominant species of coral depends on environmental conditions or habitat where corals were alive. According to coral life growth, corals have two classification, Acropora and non-Acropora, with different types of morphology branching, massive, encrusting, foliose,  tabulate, submassive, mushroom and   digitate. Lifeform was influence of some nature factor,one of this factor is depth. The aims of this research were to find and examine the influence of depth on coral morphology, to find abundance of coral, and to find morphology of corals at Pulau Ce mara Kecil, Taman Nasional Karimunjawa. The research  was conducted in August  until December 2009, in Cemara Kecil Island, Karimunjawa National Park. The research method used was eksplanatif method, sampling method using the line transect method along 20 m. The data gathered were an abundance of corals, reef morphology, coral diversity, and physical-chemical parameters. Research data  processed by non-parametric test 2 Independent Samples SPSS 16.  The results of this research showed that were not significant difference between corals morphology in depth of 3 m and 10 m.There were 10 species of coral, Acropora Digitate and Acropora Branching species most commonly found at a depth of 3 m, at depth of 10 m most commonly found was submassive coral species. The percentage of live coral abundance range between 52.5% - 79.5%, was generally grouping into well categories until very well. Percentage abundance of the largest reef in the southern part of the depth of 10 m, based on non parametric test 2 independent sam ples showed that it had no significant difference between abundance corals in depth of 3 m and10 m.   Keywords: depth, morphology of coral Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6835 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21399 2018-12-10T11:54:02Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/77015 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc GENDER ROLES IN TRADITIONAL FISH PROCESSING BUSINESS IN SMALL ISLANDS IN MALUKU Apituley, Yolanda Marla Tania Nangkah Department of Fisheries Agrobusiness, Faculty of Fisheries and Marine Science, Pattimura University https://orcid.org/0000-0002-6973-362X Nanlohy, Hellen Department of Fisheries Agrobusiness, Faculty of Fisheries and Marine Science, Pattimura University Rieuwpassa, Fredrik Department Fisheries Processing Technology, Faculty of Fisheries and Marine Science, Pattimura University Tapotubun, Alfonsina Marthina Department Fisheries Processing Technology, Faculty of Fisheries and Marine Science, Pattimura University Matrutty, Theodora Elsje Adelheid Agustin Department Fisheries Processing Technology, Faculty of Fisheries and Marine Science, Pattimura University Gender Roles; Business; Traditional Fish Processing Traditional fish processing businesses represent a vital livelihood and economic sector in Maluku’s small islands. Understanding the precise allocation of gender roles within these enterprises is crucial for enhancing family economic resilience and developing effective sectoral policy. This research aims to analyze gender roles in traditional fish processing businesses. A sample of 24 fish processing business units was drawn purposively from several smoked fish processing places in Ambon City, dried fish in Eastern Seram Regency (Geser) and salted fish in Central Maluku Regency (Perigi). The data obtained was analyzed descriptive quantitatively. The research results show that activities in each traditional fish processing business can be divided into pre-production, production, and post-production stages, with the number of activities in each stage varying. In the smoked fish business, women and men collaborate significantly in the pre-production and production stages. In contrast, in post-production activities, women have significant roles in selling the products. In the dried and salted fish business, pre-production and production activities are mainly carried out by women, while men carry out post-production activities. Most of the men in the village who produce dried and salted fish earn their living as fishermen, so pre-production and production activities are carried out by women during the day when their husbands are at sea. The smoked fish produced is generally sold locally around the production site, while dried and salted fish are sold outside the island and the province. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/77015 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/20535 2020-04-17T19:28:13Z saintek:RSA

nmb a2200000Iu 4500 "181002 2018 eng " 2549-0885 1858-4748 dc PENGARUH PENYAMAKAN ZIRKONIUM TERHADAP UJI KEKUATAN TARIK, UJI KEKUATAN SOBEK, UJI KEMULURAN DAN UJI SUHU KERUT PADA BERBAGAI JENIS KULIT IKAN (The Effect of Zirconium Tanning Against Tensile Strength Test, Strength Test of Tear, Glide Test, and Wrinkle Temperature Test on Different Fish Types) Hergiyani, Rokhmah Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Darmanto, Y. S. Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Purnamayati, Lukita Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro penyamakan; penyamak mineral; zirkonium; kulit ikan; kolagen Kulit ikan merupakan limbah perikanan yang dapat memberikan dampak negatif pada lingkungan. Salah satu cara untuk menanggulangi limbah tersebut adalah dengan proses penyamakan kulit. Penyamakan kulit adalah rangkaian proses yang sangat kompleks terjadi banyak perubahan fisik dan kimia di satu sisi, bagian yang tidak berguna dihilangkan dari kulit mentah untuk mendapatkan serat kolagen murni dan membuka struktur serat kolagen. Proses penyamakan yang tidak baik mengakibatkan kulit menjadi rusak, lemas, dan kebusukan, sehingga penanganannya dapat dengan cara menambah bahan penyamak untuk menguatkan dan menghindari kebusukan. Bahan penyamak yang digunakan yaitu zirconium. Tujuan penelitian ini adalah untuk mengetahui pengaruh penyamakan zirkonium terhadap uji kekuatan tarik, uji kekuatan sobek, uji kemuluran dan uji suhu kerut pada berbagai jenis ikan. Bahan baku yang digunakan adalah kulit ikan nila, kakap dan bandeng. Metode penelitian yang digunakan adalah experimental laboratories menggunakan Rancangan Acak Lengkap (RAL) dengan tiga kali ulangan dan  menggunakan analisa ragam ANOVA. Hasil uji menunjukan penggunaan zirkonium 7,5% terhadap kulit ikan nila, kakap, dan bandeng berpengaruh nyata (p<0,05) pada kekuatan tarik, kekuatan sobek, kemuluran dan suhu kerut pada karakteristik penyamakan. Penggunaan bahan penyamak zirkonium 7,5% terbaik dihasilkan oleh kulit ikan kakap pada uji kekuatan tarik 1675,84 N/cm2, kekuatan sobek 163,92 N/cm2 dan uji suhu kerut 103,45˚C sedangkan kemuluran untuk hasil terbaik pada kulit bandeng sebesar 28,74%, jadi setiap ikan mempunyai ciri kulit tersendiri pada setiap parameter uji.   The skin of the fish waste is a fishery that can give a negative impact on the environment. One way of tackling the waste is by the process of tanning leather. Tanning is a very complex processes occur many chemical and physical changes on the one hand, the useless removed from rawhide to get pure collagen fibers and the open structure of the collagen fibers. The process of tanning is not a good result in the skin becomes broken, buckled, and corruption, so that responses can be with how to add ingredients to strengthen Tanner and avoid corruption. On the research of materials used i.e. Tanners used are zirconium.. The purpose of this research is to know the influence of zirconium tanning against test tensile strength, tear strength test, test and test temperature wrinkle elongation on various types of fish. The raw material used is leather fish tilapia, milkfish and snapper. Research methods used are experimental laboratories using Complete Random Design (RAL) with three-time repeats and a range of analysis using ANOVA. Test results showed the use of zirconium 7.5% against the skin of the fish, snapper, tilapia and milkfish influential real (p < 0.05) on the tensile strength, tear strength, elongation and wrinkle on temperature characteristics of tanning. The use of zirconium Tanner 7.5% best produced by skin test on a snapper 1675.84 tensile strength N/cm2, the strength of RIP 163.92 N/cm2 and test the temperature of the wrinkle 103,45 ˚ C while elongation for the best results on the skin of the banding of 28.74%, so each fish has its own skin characteristics on each test parameter. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/20535 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23683 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc INFESTASI DAN INTENSITAS EKTOPARASIT PADA UDANG VANAME (Litopenaeus vannamei) DENGAN UKURAN BERBEDA PADA TAMBAK DENGAN DASAR BETON Mahasri, Gunanti Universitas Airlangga Wulan Sari, Putri Desi Universitas Airlangga Cholil, Nafis Putra Laksana Universitas Airlangga Hamidah, Siti Universitas Airlangga infestasi; intensitas ektoparasit; udang vaname; kualitas air Penelitian bertujuan untuk mengetahui infestasi dan intensitas ektoparasit pada benih udang vaname dengan ukuran yang berbeda dan di pelihara pada tambak dengan dasar beton. Penelitian ini merupakan penelitian survey dimana pengambilan sampel dilakukan secara acak pada lokasi dan waktu yang berbeda, jumlah sampel yang di ambil sebanyak 60 ekor benih dari masing – masing lokasi pengambilan sampel. Hasil penelitian menunjukkan bahwa terdapat perbedaan yang nyata (p<0,05) infestasi dari ketiga ektoparasit pada kedua ukuran benih udang vaname yang berasal dari hatchery dan tambak penggelondongan. Intensitas ektoparasit tertinggi pada udang vaname berukuran Post Larva (PL40-50) adalah  Zoothamnium ekor yang masuk dalam kategori sangat parah. Sedangkan, intensitas ektoparasit Epistylis masuk dalam kategori sedang. Intensitas ektoparasit pada benih udang berukuran Post Larva (PL11-16) yaitu Zoothamnium dan Vorticella yang masuk dalam kategori sedang dan ektoparasit Epistylis yang masuk dalam kategori rendah. Berdasarkan analisis perbedaan intensitas ektoparasit menunjukkan bahwa terdapat perbedaan yang nyata pada ektoparasit Zoothamnium dan Epistylis dari kedua ukuran benih udang vaname, hasil itu berdasarkan perhitungan nilai signifikan yaitu sebesar (p<0,05). Sedangkan pada ektoparasit Vorticella tidak terdapat perbedaan yang nyata dari kedua ukuran benih udang vaname, hasil tersebut berdasarkan perhitungan nilai signifikan (p>0,05).   The study aimed to determine the infestation and intensity of ectoparasites on white shrimp of different sizes and maintained on concrete bases. This research is a survey research where sampling was carried out randomly at different locations and times, the number of samples taken as many as 60 shrimps from each sampling location. The results showed that there were significant differences (p <0.05) of the infestations of the three ectoparasites in both sizes of white shrimp from hatcheries and log farms. The highest intensity of ectoparasites in post larvae (PL40-50) sized white shrimp is Zoothamnium which in the very severe category. Meanwhile, the intensity of Epistylis ectoparasites in the moderate category. The intensity of ectoparasites in Post Larvae sized shrimp (PL11-16), namely Zoothamnium and Vorticella, were included in the moderate category and Epistylis ectoparasites were in the low category. Based on the analysis of differences in ectoparasitic intensity, it was shown that there were significant differences in the Zoothamnium and Epistylis ectoparasites from the two sizes of white shrimp, the results of which were based on the calculation of significant values of (p <0.05). Whereas in Vorticella ectoparasites there was no significant difference between the two sizes of white shrimp, the results were based on the calculation of significant values (p> 0.05). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23683 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6887 2014-05-19T10:45:55Z saintek:RSA

nmb a2200000Iu 4500 "090222 2009 eng " 2549-0885 1858-4748 dc PENDUGAAN UMUR LARVA IKAN GERONG-GERONG (Hypoatherina sp.) YANG TERTANGKAP DI PERAIRAN PELAWANGAN TIMUR, SEGARA ANAKAN, CILACAP MELALUI STUDI OTOLITH Subiyanto, Subiyanto Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Hendrarto, Boedi Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Rahmawati, Lusiana Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang B.C., Christian Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Pengamatan terhadap otolith larva ikan Hypoatherina sp. yang tertangkap di Pelawangan Timur Segara Anakan, Cilacap untuk menduga umur telah dilakukan dari bulan Juli – Oktober 2003. Pengambilan sampel larva ikan Hypoatherina sp. dilakukan setiap dua minggu sekali. dengan menggunakan plankton net berdiamter  60 cm dan   mesh size 200 mikron.  Larva yang paling banyak tertangkap berukuran panjang standart antara kelompok 4,1 – 6,0 mm sebanyak 40 % dan 6,1 – 8,0 sebanyak 28 %. Dari hasil pengamatan  didapatkan  bahwa larva ikan  Hypoatherina sp. yang tertangkap di perairan  Pelawangan Timur mempunyai jumlah lingkaran harian antara 4 - 19 dengan panjang standart 3,4 – 19,9 mm. Dari analisa regresi yang didapatkan adalah y = 0.8293x + 1.382 dengan R2    = 0,7024. Lingkaran   harian pertama diduga terbentuk pada kisaran ukuran panjang standart 2,21 mm.   Kata kunci : Pendugaan umur, Larva ikan Hypoatherina sp., Otolith Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6887 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2735 2020-09-17T10:49:07Z saintek:RSA

nmb a2200000Iu 4500 "100813 2010 eng " 2549-0885 1858-4748 dc Biological Aspects of Goatfish (Upeneus spp) on Demak Waters Wijaya Saputra, Suradi Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Soedarsono, Prijadi Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Ari Sulistyawati, Gabriela Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang   Goatfish is one of the fishery resources which become a target species on demersal capturing activity with cantrang (Danish seine). The objectives of this research were to know biological aspect, i.e. sex ratio, growth, fecundity, average of length capture, and length of first maturity (Lm). The method used in this reseach was description survey. While collecting sample method by using a systematic random sampling method. Samples were held in TPI Morodemak, on Maret to April 2006. The result shaw that sex ratio was 1:1, and growth was negative allometric. Gonad maturities were dominated on level I. Total of fecundity range from 44.320 to 2.455.286 eggs. Avarage of length capture of male was 157 mm, and Lc and female was 164 mm. Length of first maturity of male was 216,44 mm, and female was 219,71 mm.   Key words : Goatfish, biological aspects, Demak waters Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 09:56:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2735 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 1 (2009): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/52110 2025-01-04T06:07:11Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/31339 2021-07-15T15:00:30Z saintek:RSA

nmb a2200000Iu 4500 "200804 2020 eng " 2549-0885 1858-4748 dc NITROGEN CONCENTRATION IN CORAL REEF: THE CONTRIBUTION OF CORAL FORMS AND NITROGEN FIXING BACTERIA IN KARIMUNJAWA ISLANDS Suryanti, Suryanti Departement of Aquatic Resources, Faculty of Fisheries and Marine Science,Universitas Diponegoro, Semarang, Indonesia Supriharyono, Supriharyono Departement of Aquatic Resources, Faculty of Fisheries and Marine Science,Universitas Diponegoro, Semarang, Indonesia Febrianto, Sigit Departement of Aquatic Resources, Faculty of Fisheries and Marine Science,Universitas Diponegoro, Semarang, Indonesia Aini, Muslidin Research Center, Coastal Enviromental and Fisheries, bacteria; coral; fixation; nitrogen; tissue Coral is an ecosystem in the coastal area which plays an important role in controlling nutrient cycle in the sea. This research aimed to study the the nitrogen concentration in coral and to analyze the influence of nitrogen fixing bacteria on the concentration of nitrogen in coral. The research was carried out by field observation, by taking coral reef samples and analyzed in the laboratory for its nitrogen concentration and number of nitrogen fixing bacteria. Data analysis was carried out by ANOVA and regression. The analysis resulted that there was a significant difference of nitrogen concentration in massive and branching corals. However, there is no significant correlation between the sampling location and types of coral on the density of nitrogen fixing bacteria, both Nitrosomonas sp. and Nitrobacter sp. Regression analysis showed that the concentration of nitrogen in coral tissue was not significantly related to the density of nitrogen fixing bacteria. The result of this research implies that the concentration of nitrogen in the coral tissue may be affected by many other factors. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/31339 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8110 2015-06-29T14:56:25Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc ISOLASI ALBUMIN DAN KARAKTERISTIK BERAT MOLEKUL HASIL EKSTRAKSI SECARA PENGUKUSAN IKAN GABUS (The Isolation of Albumin and Characteristics of Molecular Weight from Extraction Result by Steaming of Fish Gabus (Ophiocephalus striatus)) Nugroho, Matheus Program Studi Teknologi Hasil Perikanan Fakultas Pertanian Universitas Yudharta Pasuruan Tujuan penelitian ini untuk adalah isolasi albumin dan penentuan berat molekul dari ekstraksi secara pengukusan ikan gabus (Ophiocephalus striatus). Metode penelitian adalah ekstraksi secara pengukusan waterbath dengan  suhu kisaran 40-90 oC, dan lama 25-35 menit, untuk mendapatkan rendemen dan kadar albumin ekstrak kasar ikan gabus yang optimal. Tahap selanjutnya adalah isolasi albumin dan penentuan berat molekulnya dari hasil ekstraksi yang optimal. Analisa data penelitian ini adalah analisa deskriptif untuk melihat foto hasil elektroforesis. Sementara untuk hasil analisa pengukuran isolasi albumin secara filtrasi gel sephadex G-75 dilakukan dengan Rancangan Petak terbagi (RPB). Hasil penelitian menunjukkan bahwa ada interaksi antara berbagai faktor perlakuan. Kadar albumin isolat albumin tertinggi sebesar 1.77 mg g-1, pengaruh suhu pengukusan 40 oC selama 30 menit, pada pengambilan 5 ml fraksi ke-2. Elektroforesis SDS-PAGE dengan jumlah protein paling komplek adalah isolat albumin pengaruh suhu pengukusan 40 oC selama 30 menit, terletak pada 5 ml fraksi ke-1, 5 ml fraksi ke-2 dan 5 ml fraksi ke-3. Pita protein terdiri dari 2 pita mayor dan 5 pita minor dengan berat molekul 14.6-133 kD. Kata kunci : ikan gabus (Ophiocephalus striatus), isolasi albumin, berat molekul   The objective of this study for the isolation of albumin and determination of molecular weight of extraction by steaming of fish gabus (Ophiocephalus striatus). The research method is the extraction of a steaming waterbath with the temperature range 40-90 oC, and the long 25-35 minutes, to obtain recovery and albumin levels of crude extract of fish gabus that optimal. The next stage is the isolation of albumin and its molecular weight determination of the optimal extraction. Analysis of data of this study is a descriptive analysis to see photos of electrophoresis. While analyzing the results of measurements for albumin isolation by gel filtration Sephadex G-75 made with split plot design (RPB). The results showed that there is interaction between the various treatment factors. The highest levels of albumin albumin isolates of 1.77 mg g-1, the effect of steaming temperature of 40 °C for 30 minutes, 5 ml fractions on the uptake-2. SDS-PAGE electrophoresis with the most complex of the protein albumin is isolate the influence of steaming temperature 40 °C for 30 minutes, located at 5 ml-1 fraction, 5 ml of fraction-2 and 5 ml fractions to-3. Protein bands consist of two major bands and 5 minor bands with moleculer weight 14.6 to 133 kD. Key words : fish gabus (Ophiocephalus striatus), albumin isolation, molecular weight Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8110 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/375 2014-05-19T10:45:55Z saintek:RSA

nmb a2200000Iu 4500 "110719 2011 eng " 2549-0885 1858-4748 dc PENGGUNAAN JENIS MEDIA KULTUR TEKNIS TERHADAP PRODUKSI DAN KANDUNGAN NUTRISI SEL Spirulina platensis Suminto, Suminto ABSTRAK Penelitian ini bertujuan untuk mengetahui perbedaaan tiga jenis komposisi media kultur teknis terhadap hasil produksi dan kandungan nutrisi sel S. platensis dan untuk mengetahui jenis media yang terbaik dari ketiga jenis komposisi tersebut. Kultur sel S. platensis dilakukan dengan menggunakan bak fiber gelas volume 300 l, dengan periode kultur selama 7 hari dengan kepadatan awal 50.000 sin/ml. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 3 perlakuan dan masing-masing terdiri dari 3 ulangan. Kemudian dari masing-masing kultur tersebut dianalisis kandungan nutrisinya. Hasil penelitian menunjukkan bahwa perlakuan W berbeda sangat nyata (p<0.01) terhadap kelimpahan sel S. platensis pada puncak pertumbuhan dan kandungan nutrisi (protein, lemak, karbohidrat dan abu). Kelimpahan sel, kandungan protein dan lemak tertinggi terjadi pada perlakuan W yang masing-masing nilainya 5,684 log sin/ml, 67,58%, dan 11,61%. Disimpulkan bahwa media Walne merupakan media yang terbaik pengaruhnya terhadap kelimpahan sel pada puncak populasi dan nilai nutrisi, khususnya nilai kandungan protein dan lemak. Kata kunci : S. platensis, Media kultur, Produksi sel, Kandungan nutrisi. ABSTRACT The purpose of this research was to know the differences three technical culture media composition and the best compotition of technical media culture on the production and nutrition contents of S. platensis cells. The material of S. platensis cells were cultured by using fiber glass tank volume 300 l. Those cells were cultured during 7 days with initial cell density of 50.000 sin/ml. The experimental method was employed in this research with completely randomized design, through three treatments and three replicates, respectively. Then each treatment was analyzed for cells production and it’s nutritional content. The research results showed that W treatment was highly significantly different effect (p<0.01) on the maximal cell densities and nutrition content (protein, fat, and ash) of S. platensis cells. The highest cell density and protein content were W treatment of 5,684 log sin/ml and 67,58%, respectively. There was concluded that Walne media had significant effects on the best cell density and nutrition value of S. platensis cells, especially in the protein and fat contents. Key words : S. platensis, Culture medium, Cells production, and Nutrition content Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/375 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/41902 2025-04-15T07:52:27Z saintek:RSA

nmb a2200000Iu 4500 "221225 2022 eng " 2549-0885 1858-4748 dc Falih, Gusti Muhammad Department Perikanan Tangkap, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Kurohman, Faik Setyawan, Hendrik Anggi Pola penangkapan ikan secara tradisional yang mengandalkan intuisi dalam mencari dan menentukan lokasi penangkapan ikan menjadi masalah tersendiri yang dihadapi nelayan Mempawah. Hal tersebut menunjukan bahwa perencanaan daerah penangkapan ikan sangat dibutuhkan dalam rangka pengingkatan efektivitas dan efisiensi operasi penangkapan ikan. Penelitian ini bertujuan untuk mengetahui dan menganalisis parameter klorofil-a dan SPL terhadap hasil tangkapan ikan Kembung, mengetahui dan menganalisis parameter oseanografi klorofil-a dan SPL yang diduga sebagai zona potensi penangkapan ikan (ZPPI) ikan Kembung dari data citra satelit SNPP-VIIRS.Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Pengambilan data insitu di 7 koordinat yang berbeda. Data yang dipakai adalah data insitu dan data eksitu. Pengambilan data insitu yaitu klorofil-a dan Suhu Permukaan Laut perairan Mempawah, sedangkan data eksitu yaitu data citra bulanan SNPP-VIIRS 2018-2020 klorofil-a dan Suhu permukaan laut yang selanjutnya dianalisis menggunakan analisis korelasi pearson dan regresi linier berganda. Hasil penelitian menunjukkan kisaran suhu yang didapat saat penelitian untuk habitat ikan Kembung yaitu 30,5-30,8˚C dan rata rata klorofil-a 0,63 mg/m3. Korelasi SPL dan Klorofil-a insitu yaitu bernilai negatif yang menunjukkan bahwa semakin rendah SPL maka Klorofil-a semakin tinggi. Koefisien korelasi antara SPL dan klorofil-a dengan hasil tangkapan ikan Kembung termasuk dalam tingkatan sangat kuat yaitu 0.843. Terdapat 3 lokasi yang berpotensi sebagai daerah penangkapan di Perairan Mempawah, yaitu berada di berada pada jalur pelayaran IB dan II yang berjarak lebih dari 2 mil dari garis pantai. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-02-10 02:56:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/41902 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 4 (2022): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/41902/0 Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/36981 2021-04-21T11:21:17Z saintek:RSA

nmb a2200000Iu 4500 "201031 2020 eng " 2549-0885 1858-4748 dc EVALUATION OF EMERGE LAND FOR MANGROVE CONSERVATION PROGRAM IN KALIWLINGI, BREBES DISTRICT, BREBES REGENCY Nugroho, Aditya Dwi Magister Ilmu Kelautan, Universitas Diponegoro Helmi, Muhammad Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Supriijanto, Jusup Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Abrasion; emerge land; rehabilitation; Kaliwlingi Mangrove ecosystems are very important in the balance of ecosystems in coastal areas, because many mangrove functions cannot be replaced by other ecosystems or vegetation from physical, ecological to economic functions. The mangrove ecosystem is decreasing along with the development of coastal areas construction, reclamation, and natural factors including coastal abrasion. This study aims to evaluate emerge land for the mangrove rehabilitation conservation program in Kaliwlingi, Brebes Regency. The imagery used is Landsat satellite imagery and Sentinel in 1999, 2004, 2009, 2014, and 2019. Image processing is done with the support of ER Mapper 7,0, Arc GIS 10,2,2, The method of determining land for mangrove rehabilitation includes the physical conditions of the waters and the analysis of the sediment’s grain size.   Adjustment area of abrasion in Kaliwlingi, Brebes Regency from 1999 to 2019 were 121,42ha, 109,32ha, 102,98ha and 151,57ha, respectively, Meanwhile, there are 4 points of emerge land found in the research location, With the units of abrasion value in Kaliwlingi, Brebes Regency and  emerge land can be used as mangrove rehabilitation area. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/36981 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8324 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc The Effect of Different Concentrations Addition of Cooked Rice as Carbohydrates Sources and Brown Sugars to the Quality “Bekasam” made of Red Tilapia (Oreochromis niloticus) Nuraini, Azizah Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Rianingsih, Laras Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Bekasam is a product of fermentation of fish with an additional source of carbohydrates that have a taste salty and sour is typical, generally use freshwater fish. Processing bekasam in Kalimantan some use additional sugar as a source of carbohydrates. Data about the quality of the source with the use of carbohydrate bekasam rice already published. However, it has not yet obtained the data quality carbohydrate sources that use bekasam rice added brown sugar. The study aims to determine the effect of the different concentration of rice carbohydrate source and the addition of brown sugar in processing Red Tilapia fish bekasam during 7 days fermentation at room temperature on product quality in terms of its chemical and hedonic. The addition of rice carbohydrates sources 40% (b b-1) in the manufacture of Red Tilapia fish bekasam lowers the pH of the product, the value of TVBN, but increase total lactic acid, total sugars and amino acids lysine products, either without the addition of brown sugar or brown sugar with the addition of 3%. The addition of brown sugar 3% (b b-1) causes the levels of total lactic acid, total sugars and amino acids lysine and hedonik higher values compared to the product without the addition of brown sugar on the addition of carbohydrate source rice 35% or 40%. There is the interaction between carbohydrate source concentration differences of treatment of rice and sugar concentration differences of treatment with respect to the value of pH, total lactic acid, and amino acids lysine. The product is the best bekasam bekasam made rice a carbohydrate source with the addition of 40% (b b-1) by the addition of brown sugar 3% (b/b) with characteristic values of pH 4.66, total value of 0.90% lactic acid, sugar value total 4.20%, TVBN value 37.51 mgN (100gr)-1, amino acids lysine 0.65% and the value of hedonik 3.01 (preferred panelist). Keywords : Red Tilapia Fish; Bekasam; Coocked Rice; Brown Sugar; Quality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8324 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2069 2020-12-07T08:07:11Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Quality Analysis Satsuma Age of Threadfin Bream (Nemipterus sp) Processed Using Different Kind of Flours N, Pudyastuti Anggit Mahasiswa PS. THP, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang YS, Darmanto Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang Swastawati, Fronthea Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang Satsuma age is one kind of diversification product, originally characterized as a traditional food from Japan, that processed by surimi added with flour, vegetables, and spices, and then cooking by frying. The aim of this research were to evaluate the effect of different kind of flours used on gel strength and hedonic value and also to know the best kind of flour use in processing of satsuma age of threadfin bream. The experimental design that used is Randomized  Block Design.  Different treatments used was different kind of flour, namely tapioca flour , sagu flour, and garut flour. The result indicated that different kind of flour treatment gave very significant different (P<0.01) on gel strength and gave significant different (P<0.05) on value of hedonic with specificate on texture , but were not significant different on ( P>0.05) on appearance , odour , taste , and colour. The result support parameter to test bite of 7.94 for treatment tapioca flour; 7.98 for treatment sago flour; and 7.40 for treatment arrowroot flour. Folding test result of 4.30 for tapioca flour; 4.26 for sago flour ; and 3.66 for arrowroot flour. The moisture content of 40.40% for tapioca flour ; 41.91%  for sago flour; and 40.89% for arrowroot flour. Protein content of 21.53% for tapioca flour ; 21.17% for sago flour; and 21.57% for arrowroot flour. Fat content of 7.97% for tapioca flour ; 7.49% for sago flour; and 7.43% for arrowroot flour.  The ash content of 2.69% for tapioca flour; 2.66% for sago flour ; and 2.36% for arrowroot flour. Carbohidrate content of 27.93% for tapioca flour ; 27.10% for sago flour; and  27.27% for arrowroot flour. Satsuma age processed using sago flour  to was most prever based on hedonic scale and has high gel strength.   Key word :  Satsuma Age, Tapioca Flour, Sago Flour, Arrowroot Flour, Gel  Strength, Hedonic Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2069 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49466 2025-04-15T07:39:12Z saintek:RSA

nmb a2200000Iu 4500 "230831 2023 eng " 2549-0885 1858-4748 dc Lakapu, Mada Mariana Pogram Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Kristen Artha Wacana,JL. Adisucipto Oesapa, Kota Kupang NTT Garam rakyat pada umumnya diolah menggunakan cara tradisional dengan kapasitas yang terbatas serta memiliki kualitas kurang baik sehingga mempengaruhi nilai jual yang relatif rendah. Modifikasi alat masak merupakan salah satu cara yang dapat meningkatkan efisiensi proses produksi serta memberi hasil yang lebih baik. Tujuan penelitian yaitu, untuk mengetahui cara pembuatan garam rakyat, kadar air, kandungan NaCl, dan nilai Angka Lempeng Total dari bahan yang digunakan pada setiap tahap dan hasil dari garam rakyat yang diproduksi menggunakan alat modifikasi di kelompok Tiberias, Kelurahan Oesapa Barat, Kecamatan Kelapa Lima, Kota Kupang. Pengujian kadar air dan kandungan NaCl dilakukan di Laboratorium Eksakta Politeknik Pertanian Negeri Kupang dan Angka Lempeng Total di Laboratorium Eksakta Universitas Kristen Artha Wacana Kupang. Penelitian ini menggunakan metode kualitatif dan kuantitatif dan dianalisis menggunakan metode deskriptif komparatif. Hasil penelitian yaitu nilai kadar air berkisar antara 4,23-6-68%, kadar NaCl berkisar antara 81,97-91,06%, dan nilai Angka Lempeng Total (ALT) pada keseluruhan sampel dari nilai terendah hingga nilai tertinggi adalah < 2,5 x 101-84 x 101 koloni/g. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-08-31 14:43:36 https://ejournal.undip.ac.id/index.php/saintek/article/view/49466 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 2 (2023): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/49466/156622 https://ejournal.undip.ac.id/index.php/saintek/article/download/49466/156623 https://ejournal.undip.ac.id/index.php/saintek/article/download/49466/156624 Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/30255 2021-11-30T12:01:20Z saintek:RSA

nmb a2200000Iu 4500 "210415 2021 eng " 2549-0885 1858-4748 dc ISOLATION AND IDENTIFICATION OF BACTERIA FROM SHRIMP POND AS BIOREMEDIATION AGENT CANDIDATE TO REDUCE TOXIC AMMONIA Fatchiyyah, Amalia Rachma Coastal Resources Management, Faculty of Fisheries and Marine Sciences, Diponegoro University Haeruddin, Haeruddin Coastal Resources Management, Faculty of Fisheries and Marine Sciences, Diponegoro University Yudiati, Ervia Marine Sciences, Faculty of Fisheries and Marine Sciences, Diponegoro University ammonia; bacteria; bioremediation; shrimp; 16S rRNA The accumulation of ammonia in shrimp pond is one major problem that leads to production failure. Ammonia can disturb the metabolic balance of the shrimps and making them more susceptible to disease. An approach to overcome a poor water quality in shrimp culture caused by ammonia is introduced bacteria as a bioremediation agent. The utilization and the development of the local bioremediation agent are expected to be a solution to improve water quality. This study aimed to isolate and identify bacteria from traditional shrimp pond as candidate to reduce ammonia. Bacteria were isolated in liquid enrichment medium. Bacteria identification was done through biochemical tests also molecular analysis of the 16S rRNA gene sequence using primer 27F and 1492R and phylogenetic analysis using MEGA 6.0 program. The results showed that as many as three bacteria were isolated from traditional shrimp pond. These bacteria were NAS1, NAS2, and NAS3.  Based on the analysis of 16S rRNA gene sequence, NAS1 was identified as Breoghania sp., NAS2 identified as Pseudoalteromonas ruthenica, and NAS3 identified as Halomonas beimenensis. Ammonia reduction test showed that Halomonas beimenensis and Pseudoalteromonas ruthenica were able to reduce ammonia with a percentage of 8,4% and 20,3% for five days incubation. Therefore, these bacteria could be potential candidates as a bioremediation agent to improve water quality. Meanwhile, Breoghania sp. wasn’t show positive result in ammonia reduction test.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/30255 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9332 2015-10-27T11:34:49Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc PENGARUH PENAMBAHAN BERBAGAI KONSENTRASI BAWANG PUTIH TERHADAP MUTU “BEKASAM” IKAN NILA MERAH (The Influence of Different Concentration of Garlic (A. sativum) to the Quality of Bekasem made from Red Tilapia) Widayanti, Widayanti Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Rianingsih, Laras Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang   ABSTRAK Bekasam merupakan pengolahan ikan air tawar secara fermentasi spontan yang banyak dikenal di Kalimantan Tengah menggunakan ikan, garam dan nasi. Rasanya asam dan asin akan tetapi kurang diminati oleh golongan muda sehingga kurang berkembang. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan penambahan konsentrasi bawang putih 0%, 5%, 5,5%, 6% (b/b) selama 4 hari fermentasi sebagai flavouring agent dan menstimulasi pertumbuhan bakteri asam laktat pada pembuatan bekasam ikan Nila Merah (Oreochromis niloticus) terhadap mutu produknya berdasarkan sifat kimia (pH, TVBN, dan total asam laktat), sifat mikrobiologis (jumlah koloni bakteri) serta nilai hedonik. Hasil penelitian menunjukkan bahwa nilai total asam laktat mengalami peningkatan dan menurunkan nilai pH, TVBN dan jumlah koloni bakteri. Dari segi kimiawi produk bekasam terbaik diperoleh dari perlakuan konsentrasi bawang putih 6% dengan nilai TVBN 34,67(mgN/100ml), pH 4,58, Total asam laktat 1,53% dan jumlah koloni bakteri sebesar 6,7x10³(CFU/gr). Berdasarkan uji hedonik bekasam yang disukai panelis dengan penambahan konsentrasi bawang putih yaitu 5-6% dengan nilai 3,4-4,09 (sangat disukai panelis).   Kata kunci : Ikan Nila Merah (Oreochromis niloticus); Bekasam; Bawang Putih; Mutu   Bekasam is one of the spontaneous fermented freshwater fish well known in Central Kalimantan, using fish, salt and rice. The taste is sour and salty but less attractive to young groups so this product not develops. The research aims to determine the effects of different garlic concentrations (0, 5%, 5,5% and 6% (w/w) to stimulate the growth of lactic acid bacteria during 4 days fermentation of bekasem of Red Tilapia fish (Oreochromis niloticus) and the quality of the product based on chemical properties (pH, TVBN and total lactic acid), microbiological properties (TPC) and hedonic score. The results showed that total lactic acid have increased and decreased the value of pH, TVBN and total colony bacteria. The hedonic score were significant different among all treatments. The Chemial characteristics of bekasam with 6% garlic performed the best product which fulfilled the quality criteria, for TVBN value was 34,67 (mgN/100ml), pH value was 4,58, total lactic acid value was 1,53% and total colony bacteria value was 6,7x10³ (CFU/g). Based on the test of bekasem, the most bekasam preferred likely by panelist is bekasam which used of 5-6% garlic concentrations with a value of 3,4-4,09 (preferred by panelist). Keywords : Red Tilapia Fish (Oreochromis niloticus); “Bekasam”; Garlic; Quality   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9332 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2781 2012-03-28T14:22:19Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Nutrient Distribution on the Plankton Community Structure in Bandengan and Panjang Island Water, Jepara Widyorini, Niniek Program Studi Manajemen Sumberdaya Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang Jl. Prof. Soedharto, SH Semarang Ruswahyuni, Ruswahyuni Program Studi Manajemen Sumberdaya Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang Jl. Prof. Soedharto, SH Semarang The influence of freshwater tidals zone at Bandengan and Panjang Island could be seen by extensive finding of freshwater plankton such as Anabaena, Nitzschia, Oscillatoria, Tolypothrix, Surirella, Euglena, Volvox, and Spirogyra. Partially, salinity in Bandengan water was 30 – 33 o/oo, pH ranged between 8 – 9, and nitrite was zero, wich was in compliance with the criterian for seawater (Kep-02/MENKLH/I/88). The high level of SiO2 in Bandengan waters (1.20 – 3.29 mg/l) and Panjang Island (1.58 – 3.30 mg/l) supported the dominance of Chrysophyceae, especially Diatomae, in the study areas.   Keywords : Nutrient, Plankton, Bandengan, Panjang Island Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2781 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/65628 2025-04-15T08:29:33Z saintek:RSA

nmb a2200000Iu 4500 "240805 2024 eng " 2549-0885 1858-4748 dc STRATEGIES FOR DEVELOPING MARINE ECOTOURISM BASED ON TURTLE CONSERVATION IN PEKIK NYARING VILLAGE, CENTRAL BENGKULU REGENCY Jaya, Sutrisman Amei Master of Fisheries Management, Universitas Terbuka Mudzakir, Abdul Kohar Capture Fisheries Department, Fisheries and Marine Sciences, Diponegoro University Wardini, Tuty Maria Master of Fisheries Management, Universitas Terbuka Turtle Conservation; Marine Ecotourism; Socio-economic Development; SWOT Analysis; Central Bengkulu The conservation of turtles in Pekik Nyaring Village presents a unique opportunity to develop marine ecotourism, significantly enhancing local socio-economic conditions. This research aims to evaluate socio-economic aspects, assess community participation and roles, and identify strategies to advance turtle conservation-based ecotourism in the village. Using descriptive, qualitative, and quantitative methods, including questionnaires, the study focuses on the 4,162 residents of Pekik Nyaring Village, with a sample of 30 respondents. Primary and secondary data sources will be utilized, and a SWOT analysis will be conducted. The SWOT analysis indicates that the development of turtle conservation ecotourism in Pekik Nyaring falls into the WO (Weaknesses-Opportunities) quadrant. Recommended actions include establishing effective coordination between turtle conservation managers and the local government, strengthening community institutions involved in conservation efforts, and leveraging mass media to promote turtle conservation ecotourism through social media and dedicated websites. These strategies aim to inform tourists about ongoing developments and enhance the visibility of turtle conservation efforts in Pekik Nyaring Village. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/65628 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 2 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33639 2021-11-30T11:46:09Z saintek:RSA

nmb a2200000Iu 4500 "210828 2021 eng " 2549-0885 1858-4748 dc Yona, Defri Program Studi Ilmu Kelautan Universitas Brawijaya http://orcid.org/0000-0003-4266-9071 Samantha, Carina Daisy Kasitowati, Rarasrum Dyah Keberadaan mikroplastik di perairan yang terus meningkat telah diketahui berpotensi masuk ke dalam berbagai jenis biota laut termasuk kerang. Kerang darah (Tegilarca granosa) dan kerang tahu (Meretrix meretrix) adalah jenis organisme yang hidup pada substrat perairan dan bersifat filter feeder sehingga potensi penyerapan mikroplastik cukup tinggi. Penelitian ini bertujuan untuk menganalisis serta membandingkan akumulasi mikroplastik pada kedua jenis kerang di perairan Desa Banyuurip, Gresik. Pengambilan data lapang terdiri dari sampel sedimen dan kerang dilakukan pada Bulan Maret 2019 pada lima stasiun berbeda yaitu muara Sungai Bengawan Solo, laut terbuka, hutan mangrove, tempat pelelangan ikan dan tambak. Pada setiap stasiun diambil sebanyak ± 1 kg sedimen serta 10 ekor kerang per spesies dengan ukuran cangkang 4-6 cm yang diasumsikan sebagai fase kerang dewasa. Analisis mikroplastik dilakukan di laboratorium melalui tahapan destruksi bahan organik menggunakan H2O2 30 % serta identifikasi mikroplastik secara visual menggunakan mikroskop. Tiga jenis mikroplastik (fiber, film dan fragmen) ditemukan pada sedimen dan kedua jenis kerang dengan dominansi jenis fiber (> 75 %) diikuti oleh fragmen (20 %) dan film (< 2 %). Fiber dan fragmen ditemukan pada seluruh sampel kerang, sedangkan film hanya ditemukan pada beberapa sampel saja. Tidak terdapat perbedaan kelimpahan total mikroplastik antar jenis kerang, namun kelimpahan total mikroplastik ditemukan berbeda antar stasiun penelitian (p < 0,01) dengan kelimpahan tertinggi pada kerang yang hidup di habitat mangrove. Hutan mangrove yang selalu mendapat masukan air laut serta jenis akar pohon mangrove yang bersifat menjebak sedimen memungkinkan akumulasi mikroplastik cukup tinggi sehingga dapat mempengaruhi keberadaan mikroplastik pada kerang.   The quantity of microplastic in the marine environment has increased significantly and it could lead to the accumulation in the marine organisms such as mussels and clams. Blood cockle (Tegilarca granosa) and Asiatic hard clam (Meretrix meretrix) are benthic organisms and their feeding mode could expose them to microplastic in the sediment. This study aimed to analyze and compare microplastic accumulation in both mussels in Banyuurip coastal water, Gresik. Sediment and mussel samples were collected on March 2019 from five sampling stations: Bengawan Solo river mouth, seaward area, mangrove, fish landing station dan shrimp culture site. About 1 kg sediment samples and 10 individual mussels in the size of 4−6 cm from each species were collected from each sampling station. Microplastic analysis was conducted in the laboratory by digesting organic matter using H2O2 30 % and the identification was conducted visually using microscope. Three types of microplastic (fiber, film and fragment) was found from the sediment and mussel samples with the domination of fiber (75 %) followed by fragment (20 %) dan film (< 2 %). Fiber and fragment were observed in all sediment and mussel samples, whereas film was available only in certain samples. Statistical test revealed no significant difference in the concentrations of microplastic between the two mussels, however, the differences were observed in the concentrations of microplastic among the sampling stations (p < 0.01).  Higher concentration of microplastic was found in the mussels from mangrove area due to its rooting system that could trap microplastics. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33639 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/51388 2025-04-15T08:15:45Z saintek:RSA

nmb a2200000Iu 4500 "241031 2024 eng " 2549-0885 1858-4748 dc Analysis of the Nutritional and Organoleptic Content of Mujair Fish (Oreochromis mosammbicus) in Lake Limboto and Popayato Aquaculture Ponds Dunggio, Noviyanti Universitas Negeri Gorontalo ABSTRACT Tilapia fish (Oreochromis mosammbicus) is a type of cultivated fish that can live in fresh and brackish water. This fish is a fish that is currently widely cultivated and the production is quite high, has developed quite quickly, is easy to obtain and has a lot of high nutritional content. The purpose of this study was to determine the comparison of the chemical quality of tilapia fish (Oreochromis mosammbicus) in Limboto Lake and Popayato Cultivation Ponds. This type of qualitative descriptive research. Fish samples were obtained from Limboto Lake and Popayato Cultivation Ponds. Tilapia fish samples were tested for organoleptic and chemical quality tests (proximate). The organoleptic test includes appearance, taste, aroma and texture. The chemical quality content includes water content, ash content, fat content and protein content. The results showed that there were differences in the nutritional content of tilapia fish from Limboto Lake and Popayato Cultivation Ponds. Judging from the organoleptic tests on the appearance, taste, aroma and texture of the Limboto tilapia fish, it is different from the tilapia fish originating from the Popayato Cultivation Ponds. The chemical test results for the Limboto tilapia fish obtained a water content of 75.91%, an ash content of 1.06%, a protein content of 18.64%, a fat content of 3.73% and for tilapia fish in Popayato Cultivation Ponds a water content of 77.10 was obtained. %, ash content 1.16%, protein content 17.55% and fat content 3.58%.   Keywords: Mujair fish (Oreochromis mosammbicus); Nutrient content ; Organoleptic Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-11 00:00:00 https://ejournal.undip.ac.id/index.php/saintek/article/view/51388 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 3 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11141 2020-04-17T19:22:57Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc KOMPOSISI PENYUSUN TERUMBU KARANG TEPI (FRINGING REEF) DI PULAU MANDANGIN KABUPATEN SAMPANG, MADURA The Composition of Fringing Reef Formation in Pulau Mandangin, Sampang Province, Madura Guntur, Guntur Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Malang Arifin, Samsul Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Malang Luthfi, Oktiyas Muzaky Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Malang Fringing reef, zona windward; zona leeward; substrat; Pulau Mandangin   Terumbu karang tepi di Pulau Mandangin tersusun substrat biotik dan abiotik dengan kedalaman tidak lebih dari 40 m. Pulau Mandangin adalah pulau kecil yang memiliki komposisi substrat dasar seperti terumbu karang dan perairannya yaitu zona leeward dan zona windward. Zona leeward adalah sisi yang membelakangi arah datangnya angin, sedangkan zona windward adalah sisi yang menghadap arah datangnya angin. Tujuan dari penelitian ini adalah untuk mengetahui komposisi penyusun terumbu karang tepi (fringing reef) dan mengetahui perbedaan komposisi penyusun terumbu karang tepi (fringing reef) antara zona leeward dan zona windward di Pulau Mandangin. Metode yang digunakan adalah Line Intercept Transect (LIT) secara vertikal, LIT dimulai dari surut terendah sampai daerah reef slope dan dilakukan pencatatan semua jenis substrat yang dibawah garis transek. Hasil penelitian menunjukkan zona fringing reef yang mengelilingi Pulau Mandangin tersusun atas substrat rubble, sand, alga, rock, dead coral, dead coral with algae, sponge, coral massive dan coral submassive. Zona leeward lebih bervariasi dari zona windward dalam susunan fringing reef. Hal ini karena angin yang terjadi di zona windward lebih besar dari zona leeward, sehingga substrat di zona windward hanya rubble dan sand.    Fringing reef in Mandangin Island comprises of biotic and abiotic substrates in depth not more than 40 m. Mandangin Island is a small island with base substrate composition mostly involving coral reef. The waters include leeward and windward zones. Leeward zone is paralleling with wind incoming direction, whereas windward zone is facing on wind incoming direction. The objective of research is to understand the composition that constitutes fringing reef and to recognize different constitutive composition of fringing reef at leeward zone and windward zone in Mandangin Island. Method of research is Line Intercept Transect (LIT) that is applied vertically. LIT starts from the lowest ebb toward the reef slope zone, and it involves registering all substrate types below transect line. Result of research indicates that fringing zone surrounding Mandangin Island consists of various substrates such as rubble, sand, alga, rock, dead coral, dead coral with algae, sponge, coral massive and coral sub-massive. Leeward zone is more diversified in fringing reef composition than windward zone. It is evident because wind occurrence at windward zone is higher than at leeward zone, and thus, substrates at windward zone include only rubble and sand.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11141 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/6763 2025-04-26T12:33:32Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc Effect of Different Escape Vent on Collapsible Pot For Catching Mud Crab Iskandar, Dahri Staf Pengajar Departemen Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Institut Pertanian Bogor The objective of this research was to obtain optimum shape of escape vent to mud crab catch.  The research used common fishermen’s pot for catching mud crabs. Three types of escape vent were installed in the pot i.e. rectangular shaped escape vent, Ship Same Side Corner Rectangle (S3CR), circle shaped  escape vent while non escape vent pot was used as control. Result of research indicated that total catch of each escape vent type was as follow: circle shaped escape vent pot was 57 fishes or equal with 21.84% of total catch, S3CR shaped escape vent pot was 46 fishes or equal with 17.62 % of total catch and rectangular shaped escape vent pot was 36 fishes or similar with 13.79 % of total catch. Kruskall-Wallis test also indicated that there was significant different of total catch between different type of escape vent pot (P=0.000; Chi-Square = 22.659). Mud  crab catch of S3CR shaped escape vent pot was showing the highest catch than other type of escape vent pot. Kruskall- Wallis test on total catch of mud crab also indicated significantly different among different type of escape vent (P=0.005; Chi-Square = 12.667).   Keywords: Collapsible pot, escape vent, mud crab, catch Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6763 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/42546 2022-06-18T09:12:11Z saintek:RSA

nmb a2200000Iu 4500 "211210 2021 eng " 2549-0885 1858-4748 dc Solichin, Anhar Departemen Sumberdaya Akuatik, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Saputra, Suradi Wijaya Sabdaningsih, Aninditia Ikan Petek (Leiognathus equulus, Forsskal 1775) hidup di dasar perairan sampai dengan permukaan pada perairan pantai yang dangkal, sering tertangkap dengan alat tangkap arad, cantrang atau tarik lainnya yang beroperasi di dasar perairan. Nilai ekonomis ikan Petek relatif rendah dan umum dikonsumsi sebagai ikan asin. Petek merupakan hasil tangkap sampingan yang dominan tertangkap di perairan Teluk Semarang. Kondisi ini menjadi rawan jika laju penangkapannya di suatu perairan cukup tinggi dan terus meningkat. Penelitian ini dimaksudkan untuk mengkaji dinamika populasi ikan Petek di perairan Teluk Semarang Jawa Tengah. Metode penelitian yang digunakan adalah metode survei. Sampel ikan diambil dari PPI yang menjadi pangkalan pendaratan bagi alat tangkap arad di perairan Teluk Semarang, yaitu PPI Tanggulmalang dan Bandengan di Kabupaten Kendal dan PPI Tambaklorok Kota Semarang. Penelitian dilaksanakan mulai bulam April sampai dengan Agustus 2021. Berdasarkan uraian di atas dapat disimpulkan pada penelitian ini bahwa ikan Petek yang tertangkap di perairan Teluk Semarang memiliki panjang total berkisar antara 100– 245 mm. Musim rekrutmen terjadi pada bulan Maret sampai dengan bulan September. Hubungan panjang – bobot ikan Petek mengikuti persamaan W = 0,00002 L3,05, dengan pola pertumbuhan isomatrik. Ikan Petek mengikuti persamaan pertumbuhan von Bertalanffy Lt = 170(1-exp-0,66(t+0,08528)). Laju mortalitas total (Z) ikan Petek sebesar 1,64/tahun, F sebesar 0,79/tahun, lebih kecil dari mortalitas alaminya (M) yaitu 0,85/tahun. Tingkat eksploitasi (E) adalah 0,48, masih sedikit di bawah optimum (Eopt = 0,5). Ukuran yang tertangkap didominasi ikan berukuran kecil/belum dewasa (Lc<Lm), sehingga cenderung terjadi growth overfishing, dan dapat mengarah terjadinya kelangkaan induk (recruitment overfishing). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-12-10 06:13:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/42546 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 4 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/71652 2025-04-25T14:22:56Z saintek:RSA

nmb a2200000Iu 4500 "250424 2025 eng " 2549-0885 1858-4748 dc SCREENING ACTIVITY OF LIPOLYTIC BACTERIA: BIOFOULING COMPLEX ON SURAMADU CONCRETE BRIDGE SUBSTRATE Junaedi, Abdus Salam Program Study of Water Resources Management, Department of Marine and Fisheries, Universitas Trunojoyo Madura https://www.trunojoyo.ac.id/ https://orcid.org/0000-0001-6374-0549 Atho’illah, M Program Studi S1 Manajemen Sumberdaya Perairan, Jurusan Kelautan dan Perikanan, Fakultas Pertanian, Universitas Trunojoyo Madura Jl. Raya Telang, Perumahan Telang Indah, Telang, Kecamatan Kamal, Kabupaten Bangkalan, Jawa Timur 69162 Atho’illah, M Program Studi S1 Manajemen Sumberdaya Perairan, Jurusan Kelautan dan Perikanan, Fakultas Pertanian, Universitas Trunojoyo Madura Jl. Raya Telang, Perumahan Telang Indah, Telang, Kecamatan Kamal, Kabupaten Bangkalan, Jawa Timur 69162 Tasya, Friska Rachmawati Program Studi S1 Manajemen Sumberdaya Perairan, Jurusan Kelautan dan Perikanan, Fakultas Pertanian, Universitas Trunojoyo Madura Jl. Raya Telang, Perumahan Telang Indah, Telang, Kecamatan Kamal, Kabupaten Bangkalan, Jawa Timur 69162 Tasya, Friska Rachmawati Program Studi S1 Manajemen Sumberdaya Perairan, Jurusan Kelautan dan Perikanan, Fakultas Pertanian, Universitas Trunojoyo Madura Jl. Raya Telang, Perumahan Telang Indah, Telang, Kecamatan Kamal, Kabupaten Bangkalan, Jawa Timur 69162 Farid, Akhmad Program Studi S1 Manajemen Sumberdaya Perairan, Jurusan Kelautan dan Perikanan, Fakultas Pertanian, Universitas Trunojoyo Madura Jl. Raya Telang, Perumahan Telang Indah, Telang, Kecamatan Kamal, Kabupaten Bangkalan, Jawa Timur 69162 Farid, Akhmad Program Studi S1 Manajemen Sumberdaya Perairan, Jurusan Kelautan dan Perikanan, Fakultas Pertanian, Universitas Trunojoyo Madura Jl. Raya Telang, Perumahan Telang Indah, Telang, Kecamatan Kamal, Kabupaten Bangkalan, Jawa Timur 69162 Suramadu bridge; Biofouling ; Lipolytic Bacteria; Lipolytic Index Biofouling is an aquatic biota that lives by attaching to a harmful substrate. Bacteria are one of the factors in the formation of biofouling communities on the substrate. Lipolytic bacteria are microorganisms capable of degrading lipid (fat) compounds. The purpose of this study aimed to determine the characteristics of lipolytic bacteria that were successfully isolated from a sample of the Suramadu concrete bridge substrate (Surabaya-Madura waters). There are 3 sampling stations doing 3 repetitions at each station. The isolation method used was a pour plate using selective Stone Mineral Salt Solution Extract Yeast Agar (SMSSEYA) + 2% bacto agar media . The results showed that the characterization of bacterial colonies in Surabaya-Madura waters obtained 5 types of bacterial colonies namely BL1, BL2, BL3, BL4, and BL5. The lipolytic indexes of bacteria BL2, BL3, and BL4 were respectively 0.51; 1.31; 0.78 mm and types of bacteria BL1 and BL5 with a value of 0 mm each. Bacteria types BL2, BL3, and BL4 are lipolytic bacterial isolates because they are capable of producing extracellular lipase enzymes characterized by the formation of clear zone areas surrounding the bacterial colonies. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-04-16 03:41:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71652 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 1 (2025): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13191 2020-04-17T19:24:39Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc KONSENTRASI NITRAT DAN ORTOFOSFAT DI MUARA SUNGAI BANJIR KANAL BARAT DAN KAITANNYA DENGAN KELIMPAHAN FITOPLANKTON Harmful Alga Blooms (HABs) Concentration of Nitrate and Orthophosphate at Banjir Kanal Barat Estuary and their Relationship with the Abundance of Harmful Algae Blooms Tungka, Anggita Wahyuningtyas Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Haeruddin, Haeruddin Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ain, Churun Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Nitrat; Ortofosfat; Kelimpahan Fitoplankton; Harmful Alga Blooms (HABs); Muara Sungai Banjir Kanal Barat   Perkembangan industri dan aktivitas rumah tangga di sepanjang aliran Sungai Banjir Kanal Barat Semarang diduga memberikan pengaruh terhadap kualitas perairan berupa buangan limbah yang mengandung nutrien (nitrat dan ortofosfat). Kedua nutrien tersebut dalam konsentrasi yang tinggi dapat mengakibatkan pengkayaan unsur hara (eutrofikasi) dan memicu ledakan populasi fitoplankton (blooming fitoplankton). Kondisi blooming ini diperburuk dengan adanya beberapa spesies fitoplankton yang mengandung racun dalam tubuhnya yang dikenal sebagai Harmful Alga Blooms (HABs). Penelitian dilakukan pada bulan Desember 2015 – Januari 2016 di Muara Sungai Banjir Kanal Barat, dengan tujuan untuk mengetahui konsentrasi nutrien (nitrat dan ortofosfat), jenis dan kelimpahan fitoplankton HABs, serta hubungan dan pengaruh antara konsentrasi nutrien (nitrat dan ortofosfat) terhadap kelimpahan fitoplankton HABs. Metode penelitian yang digunakan adalah metode survey dengan teknik purposive sampling. Hasil penelitian menunjukkan bahwa konsentrasi nitrat di lokasi penelitian berada dalam kisaran 0,6-2,2 mg/l, sedangkan konsentrasi ortofosfat dalam kisaran 0,04-1,3 mg/l. Fitoplankton HABs yang teridentifikasi berjumlah 5 genera diantaranya Trichodesmium sp., Ceratium sp., Noctiluca sp., Pseudonitzschia sp. dan Gonyaulax sp.. Persentase fitoplankton HABs dari total kelimpahan fitoplankton yang teridentifikasi sebesar 40,89% di stasiun I, 20,10% di stasiun II dan 11,49% di stasiun III. Berdasarkan analisis regresi berganda, sebesar 44,2% nutrien nitrat dan ortofosfat mempengaruhi kelimpahan fitoplankton HABs dengan persentase pengaruh nitrat dan ortofosfat masing-masing sebesar 36,6% dan 7,6%.    Industrial and households activity along Banjir Kanal Barat river flow in Semarang allegedly give an impact to the water quality which form the sewage contain nutrients (nitrate and orthophosphate). Both of the nutrients, in high concentration can cause nutrient enrichment (eutrophication) and trigger phytoplankton overpopulation (phytoplankton bloom). Blooming in this condition can be worse because of several toxic phytoplankton, this phenomenon known as Harmful Alga Blooms (HABs). The research was conducted on December 2015 – January 2016 at Banjir Kanal Barat estuary which aimed to knowing the nutrient concentration (nitrate and orthophosphate), find out the abundance of HABs phytoplankton, analyzing the relation of nutrients (nitrate and orthophosphate), and relation between chemical-physics water parameters and the abundance of HABs phytoplankton. The method of this research was used survey by purposive sampling technique. The results of the research showed that nitrate concentrations were in the range of 0.6 to 2.2 mg/l, while orthophosphate concentrations were of 0.04 to 1,3 mg/l. There were 5 generas identified as Phytoplanktons HABs, including Trichodesmium sp., Ceratium sp., Noctiluca sp., Pseudonitzschia sp. and Gonyaulax sp. The phytoplankton HABs percentage from the total abundance of identified phytoplankton was diferent within sampling stations that was 40,89% at the station I, 20,10% at the station II and 11,49% at the station III. Both nitrate and ortophosphate concentration may affected HABs phytoplankton 44,2%  (corelatoin analysis), with the influence of nitrate and orthophosphate were 36,6% and 7,6%.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13191 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21651 2020-04-17T19:29:46Z saintek:RSA

nmb a2200000Iu 4500 "180828 2018 eng " 2549-0885 1858-4748 dc PRODUKTIVITAS PERIKANAN TANGKAP KOTA TEGAL Hendrayana, Hendrayana Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Pancasakti Tegal Hartanti, Ninik Umi Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Pancasakti Tegal Cantrang;Perikanan; Produktivitas; Tegal;Tegalsari Produktivitas perikanan tangkap Kota Tegal cenderung fluktuatif. Penelitian ini bertujuan untuk mengetahui laju pertumbuhan alat tangkap cantrang dan untuk mengetahui produktifitas perikanan tangkap di Kota Tegal Penelitian ini menggunakan metode penelitian deskriptif dan pengambilan sampel dilakukan dengan metode purposive sampling method. Hasil penelitian menunjukkan bahwa 90% kapal di PPP Tegalsari merupakan kapal cantrang. Hasil tangkapan ikan dari tahun 2015-2017 menurun sebesar 30,11%.  Ikan ekonomis seperti kakap merah (Lutjanus bitaeniatus), ikan lidah (Cynoglossus lingua), ikan pari (Dasyatis sp), rajungan (Portunus pelagicus) sulit ditemukan di Perairan Tegal.  Zona penangkapan berubah dimana awalnya dilakukan di Kawasan Perairan Tegal saat  penangkapan dilakukan hingga Kawasan perairan kalimantan.   Tegal capture fisheries productivity is fluctuating. The aims of this research was to determained cantrang fishing gear and Tegal capture fisheries productivity. The descriptive method and purposive sampling method was applied in this research. The results showed that 90% of the ship at PPP Tegalsari ships was cantrang ships. Fish catch from 2015-2017 decreased by 30.11%. Economic fish like Lutjanus bitaeniatus , Cynoglossus lingua , Dasyatis sp and Portunus pelagicus hard to find at Tegal Water. There need to be fishing gear and fish target in fishing activities. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21651 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6814 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc Quality Comparation of Smoking Catfish Using Pine Liquid Smoke With Different Concentrations Swastawati, Fronthea Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Sumardianto, Sumardianto Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Indiarti, Rina Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Utilization of liquid smoke is considered as one fish smoking alternative methods that effect  should be applied in Indonesia. Catfish (Arius thalasinus) is one of fish species which has good taste, delicious and good nutrition value. Fish is dipped in water containing liquid smoke with ratio of = 5% (A); 7, 5% (B); and 10% (C). the average of organoleptic value of the product  were relatively high and there was no significant different between samples, water content of the product 55-59%, protein content 30-35%, fat content 4,95%-7,64% and ash content 3,38%-4,95%. Result for TPC showed that A = 15, 6.102 CFU/gr, B = 11.102   CFU/gr, and C = 6.102   CFU/gr. Based on ANOVA, it was obtained that there was significant different in bacterial content between samples (F observed (21, 19082) > F tables 0, 01 (18.00)). Phenol content showed significant different between samples where A = 0, 7068 mg/kg; B = 1, 20622 mg/kg; and C = 1, 51028 mg/kg. The result average of pH showed A = 6, 3; B = 6, 13; C = 6, 3, with pH of liquid smoke 2, 8   Key words: quality, smoke catfish, Liquid Smoke of Pine, concentration Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6814 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/27100 2022-06-18T09:12:11Z saintek:RSA

nmb a2200000Iu 4500 "211230 2021 eng " 2549-0885 1858-4748 dc Bakhtiar, Deddy Universitas Bengkulu Jaya, Indra Manik, Henry M Madduppa, Hawis H Ikan kakaktua (Chlorurus sordidus) merupakan salah satu ikan herbivora pada ekosistem terumbu karang yang memiliki peran dalam menjaga kesehatan terumbu karang. Penelitian ini bertujuan untuk mempelajari karakteristik hambur balik akustik ikan kakaktua dan hubungannya dengan ukuran panjang ikan. Manfaat dari penelitian ini berguna untuk pendugaan distribusi ukuran dan kelimpahan ikan kakaktua di suatu perairan. Pengukuran hambur balik akustik dilakukan secara ex-situ menggunakan metode tethered, dimana ikan kakaktua digantung pada kedalaman 2 meter di bawah transduser dan di sounding dengan echosounder Simrad EK-15 pada frekuensi 200 kHz. Data hasil perekaman dianalisis dengan software Echoview 8 untuk memperoleh data target strength (TS). Hasil penelitian menunjukkan bahwa hambur balik ikan kakaktua (C. sordidus) memiliki nilai TS rata-rata -49.42 dB pada ukuran panjang baku berkisar 14 sampai 22 cm. Perbedaan nilai TS pada ikan kakaktua diduga dipengaruhi ukuran panjang tubuh, panjang gelembung renang dan aktifitas renang.  Rasio ukuran panjang gelembung renang dan panjang tubuh tidak menunjukkan keterkaitannya dengan nilai TS. Hubungan antara TS dan panjang baku ikan kakaktua (C. sordidus) diformulasikan dalam persamaan TS = 10,43 Log SL – 62,65 (R2 = 0,752). Hasil ini berbeda dengan ketetapan Love (1977) dimana hambur balik akustik dari ikan merupakan kuadrat dari ukuran panjang ikan yang tetapkan dengan nilai slope (b) sebesar 20.   Parrot fish (Chlorurus sordidus) is one of the herbivorous fish in coral reef ecosystems that has a role in maintaining the health of coral reefs. This study aims to study the characteristics of acoustic backscattering of parrot fish and their relationship to fish length measurements. The benefits of this study are useful for estimating the size and abundance distribution of parrot fish in a waters. Acoustic backscattering measurements were carried out ex-situ using the tethered method, where the parrot fish was hung at a depth of 2 meters below the transducer and sounded with a Simrad EK-15 echosounder at a frequency of 200 kHz. Recording data were analyzed with Echoview 8 software to obtain target strength (TS) data. The results showed that the backscatter of parrot fish (C. sordidus) had an average TS value of -49.42 dB at standard lengths ranging from 14 to 22 cm. Differences in TS values in parrot fish are thought to be influenced by body length, swimbladder length and swimming activity. The ratio of the size of the swimbladder length and body length does not indicate an association with TS values. The relationship between TS and standard length of parrot fish (C. sordidus) was formulated in the equation TS = 10.43 Log SL - 62.65 (R2 = 0.752). This result is different from the Love (1977) provision where the acoustic backscatter of a fish is the square of the length of the fish set with a slope (b) of 20.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-12-10 06:13:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/27100 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 4 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/71461 2025-08-04T07:39:35Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Novrida, Alya Shaka Fakultas Perikanan Program Studi Teknologi Hasil Perikanan Universitas Airlangga Surabaya Pujiastuti, Dwi Yuli Saputra, Eka Ikan gabus (Channa striata) sering dimanfaatkan sarinya karena mengandung albumin untuk mempercepat proses penyembuhan luka Proses ekstraksi albumin dari ikan gabus menghasilkan minyak samping yang kaya asam lemak tak jenuh, seperti omega-3 dan omega-6. Minyak ikan gabus mengandung banyak ikatan rangkap yang mudah mengalami reaksi oksidasi. Salah satu cara untuk menghambat oksidasi minyak ikan adalah dengan menambahkan antioksidan. Antioksidan sintetis dinilai berbahaya bagi tubuh serta memiliki efek samping, sehingga penelitian ini memanfaatkan antioksidan alami dari likopen kasar buah tomat. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan likopen kasar buah tomat dan variasi suhu penyimpanan terhadap bilangan peroksida minyak ikan gabus selama penyimpanan. Metode penelitian yang digunakan adalah uji eksperimental pada minyak ikan gabus yang terdiri dari empat perlakuan terdiri dari satu kontrol tanpa likopen dan tiga perlakuan dengan penambahan likopen kasar 60 g/200 ml pada suhu penyimpanan 28°C, 5°C, dan -9°C selama 21 hari. Hasil penelitian menunjukkan perlakuan optimal penyimpanan minyak ikan terdapat pada perlakuan penambahan likopen kasar dengan penyimpanan kulkas 5°C berdasarkan hasil uji bilangan peroksida terkecil 3,33 meq/kg pada hari ke-21 serta nilai organoleptik parameter bau dan kekeruhan terbaik. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71461 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15289 2020-04-17T19:25:44Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc SEBARAN UKURAN LOBSTER BATU (Panulirus penicillatus) DI PERAIRAN WONOGIRI JAWA TENGAH (Size Composition of Lobster (Panulirus penicillatus) in Wonogiri Waters, Central Java) Zaenuddin, Muhammad Universitas PGRI Ronggolawe Tuban Putri, Denada Anggia Dwi Program Studi Manajemen Sumberdaya Pantai, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Lobster batu (Panulirus penicillatus); Perairan Wonogiri; sebaran ukuran   Kabupaten Wonogiri merupakan salah satu daerah yang terdapat penangkapan Lobster. Lobster batu (Panulirus penicillatus) merupakan jenis yang paling sering dominan tertangkap oleh krendet dan jaring hampar. Informasi tentang sebaran ukuran lobster yang tertangkap sangatlah diperlukan. Hal ini dilakukan guna memperoleh gambaran tentang pertumbuhan lobster serta mengetahui persamaan regresinya sebagai dasar pengelolaan lobster batu. Data diambil setiap satu bulan sekali selama enam bulan, pada periode Oktober 2013–Maret 2014 dan dianalisis dengan menggunakan analisis regresi linear sederhana. Hasil ukuran pertama kali tertangkap (L50%=56mm) kurang dari setengah panjang asimtotik (½ L∞=67mm). Hubungan panjang-berat lobster jantan yaitu W= 0,003L 2,68 dan lobster betina W= 0,0041L 2,59. Faktor kondisi pada lobster jantan (1,17) dan betina (1,10). Persamaan pertumbuhan Von Bertalanffy lobster jantan Lt = 136 (1-e-0,15(t+0,89)) dan lobster betina Lt = 123(1-e-0,19(t+0,65)), hal ini menunjukkan bahwa lobster jantan tumbuh lebih cepat dari lobster betina.      Central Java Province, exactly Wonogiri Regency, it is one of regions that there is Lobster catching. lobster (Panulirus penicillatus) was the dominant caught by krendet and covering net in Wonogiri waters. Information on size composition of lobster is very important. This was done to obtain an overview of lobster’s growth and  linear regression. Data taken every month for six months, on October until March  and processed with a simple linear regression. The result of first size of caught (L50%=56mm) is lower than the half of asymptotic length (½ L∞=67mm). Length-weight relationship of male lobster is W = 0,003L2,68 and female lobster is W = 0,0041L2,59. The condition factor of male (1,17) and female (1,10) lobster has equal of plupmness. Von Bertalanffy equation for male lobster is   Lt= 136(1-e-0,15(t+0,89)) and female lobster is Lt=123(1-e-0,19(t+0,65)), so it can be stated the male lobster growing faster than female lobster.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15289 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22128 2020-04-17T19:30:54Z saintek:RSA

nmb a2200000Iu 4500 "190219 2019 eng " 2549-0885 1858-4748 dc PROFIL ASAM AMINO DENDENG GILING IKAN LELE DUMBO (Clarias gariepinus) DENGAN PENAMBAHAN KONSENTRASI ASAP CAIR YANG BERBEDA (Amino Acid Profiles of Dumbo Catfish (Clarias gariepinus) Jerked Meat Processed with Different Concentration of Liquid Smoke) Ramadayanti, Rizky Amalia Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Swastawati, Fronthea Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suharto, Slamet Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Lele dumbo; Dendeng;Asap cair; Profil asam amino; Karakteristik Lele dumbo merupakan salah satu komoditas penting perikanan budidaya di Indonesia. Perkembangan pengolahan ikan sekarang lebih variatif seperti pengolahan menjadi dendeng. Penambahan asap cair pada proses pembuatan dendeng dapat meningkatkan keawetan dendeng serta memberikan karakteristik sensori. Tujuan penelitian ini adalah untuk mengetahui pengaruh penambahan konsentrasi asap cair yang berbeda terhadap kualitas dendeng. Rancangan percobaan yang digunakan adalah RAL (Rancangan Acak Lengkap). Perlakuan meliputi penambahan asap cair 0% sebagai kontrol, 1%, 3%, dan 5%. Parameter uji yang diamati adalah profil asam amino, kadar air, kadar protein, kadar fenol serta uji hedonik (kenampakan, bau, rasa, dan tekstur). Hasil penelitian menunjukkan bahwa dendeng dengan penambahan asap cair tetap memiliki asam amino yang lengkap. Lisin dan leusin dominan pada asam amino esensial dengan nilai 39702,77 - 51736,24 mg/kg, serta pada asam amino non esensial asam glutamat mendominasi dengan nilai 59915,6 - 64478,57 mg/kg. Perbedaan konsentrasi asap cair pada dendeng giling ikan lele dumbo memberikan pengaruh yang nyata terhadap penurunan kadar air, kenaikan protein dan fenol serta hedonik dendeng. Semakin besar konsentrasi yang digunakan, dendeng tidak diterima oleh panelis (p < 0,05).   Catfish is one of nutritionally important aquaculture species in Indonesia. Nowadays, the development of its processed method becomes more various such as the production of jerked meat. Addition of liquid smoke could increase shelf life of catfish and give sensory characteristics. This study aimed to determine the effect addition liquid smoke with different concentration on quality characteristics of jerked meat. The research method used Completely Randomized Design (CRD) with four treatments such as addition of 0% liquid smoke as control, 1%, 3%, and 5%. Parameters test observed are amino acid profiles, moisture content, protein content, and phenol content also hedonic test. Jerked meat processed with liquid smoke still have a complete amino acid . Lysine and leucine dominated on essential amino acid with range 39702,77 – 51736,24 mg/kg, while glutamic acid dominated on non essential amino acid with range 59915,6 – 64478,57 mg/kg. Meanwhile, addition of liquid smoke gave a significantly different to the moisture content, protein content, phenol content also appearance, odor, flavor, and texture of catfish jerked meat (p < 0,05). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22128 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6828 2025-04-26T12:46:18Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc Gonadal Maturity of Commercial Species of Stichopus Vastus Sea Cucumber (Holothuriidea : Sthichopodidae) in Karimunjawa Waters, Jepara Districs, Central Java Sulardiono, Bambang Staf pengajar Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu kelautan Universitas Diponegooro Sea cucumber resources is one of the commodities of marine resources is very important and has a high commercial value. One of the commercial sea cucumber species found in the waters of the  Stichopus vastus Karimunjawa (local name: gamets). The high commercial value sea cucumbers cause excessive exploitation of the resources, so that would threaten its sustainability. To preserve water resources in the sea cucumber can be maintained properly required for resource management actions. Aspects of reproduction is one aspect of the basis used to determine the management of aquatic resources in sea cucumbers Karimunjawa, which is associated with survival and breeding. Research purposes (1) to analyze and determine the development level of gonad maturity in the waters of Stichopus vastus Karimunjawa, (2) analyze and know the stage of mature gonads S. vastus monthly in Karimunjawa waters, (3) analyze and determine the condition of mature gonads S. vastus based on length of interval scales in the waters Karimuinjawa, and (4) identify and analyze the gonadal somatic index (GS I) when mature gonads S.vastus in Karimunjawa waters. Sample collection on a monthly basis during the period July 2010 until May 2011, within methods of systematic sampling. Samples were collected from the catch freely on a predetermined location within the boundaries of the study sites. Pickling sea cucumbers sample with 2.5% Mg Cl2 use traditional and gonad used for solution of buffered formalin. During the study found that the mature gonad stage is the stage of development that has the highest percentage compared to the stages of gonad maturity of the other. Every month observation, always get ripe gonad condition, with the percentage varying, so that seasonal   patterns are less likely. Obtained information that the S. vastus spawn in the month - the month September- November and March to May, with a length of 269-286 mm size range. Quantitative assessment based on the gonad somatic index (GSI) found that in July and September in a condition to cook, while in other months, namely November, January, March, and May show the condition begins to mature.   Keywords : Stichopus vastus, gonad maturity, and gonad somatic index Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6828 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21368 2018-12-28T15:43:51Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/72726 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Ulfauza, Ulfauza Harminto, Harminto Politeknik Ahli Usaha Perikanan Jakarta Amelia, Ayu Rizki Ryan, Monica Aisyah, Siti Budidaya udang vaname (Litopenaeus vannamei) merupakan salah satu sektor perikanan budidaya yang berkembang pesat di Indonesia. Namun, keberhasilan budidaya sangat ditentukan oleh efisiensi pakan, kualitas air, dan kesehatan udang. Penggunaan probiotik menjadi salah satu strategi potensial untuk meningkatkan performa budidaya secara berkelanjutan. Penelitian ini bertujuan untuk membandingkan efektivitas dua jenis probiotik komersial, yaitu Bacillus spp. dan Lactobacillus spp., terhadap pertumbuhan dan kelangsungan hidup udang vaname (Litopenaeus vannamei) dalam sistem tambak semi-intensif. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan tiga perlakuan: P1 (kontrol), P2 (Bacillus spp., dosis 1 g/m³ air dan 5 g/kg pakan), dan P3 (Lactobacillus spp., dosis 10 mL/m³ air dan 10 mL/kg pakan). Udang berukuran PL-10 ditebar dengan kepadatan 80 ekor/m² dan dipelihara selama 60 hari. Parameter yang diamati meliputi laju pertumbuhan harian, kelangsungan hidup (survival rate), efisiensi konversi pakan (FCR), serta kualitas air (pH, DO, NH₃, salinitas). Analisis data dilakukan menggunakan uji ANOVA dan dilanjutkan dengan DMRT pada taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa perlakuan P2 menghasilkan laju pertumbuhan tertinggi sebesar 0,272 g/hari, survival rate mencapai 89,3%, dan FCR terendah 1,30. Probiotik ini efektif dalam meningkatkan pertumbuhan, efisiensi pakan, dan menstabilkan kualitas air. Lactobacillus spp. (P3) menunjukkan hasil sedang, sementara kontrol menunjukkan hasil terendah. Dengan demikian, Bacillus spp. merupakan probiotik komersial yang paling efektif untuk budidaya udang vaname semi-intensif. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/72726 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/20530 2020-04-17T19:27:43Z saintek:RSA

nmb a2200000Iu 4500 "181002 2018 eng " 2549-0885 1858-4748 dc ANALISIS DATA BATIMETRI LAPANGAN DAN CITRA LANDSAT 8 OLI DI PERAIRAN SELAT LEPAR KABUPATEN BANGKA SELATAN (ANALYSIS BATIMETRY FIELD AND BATIMETRY CITRA LANDSAT 8 OLI IN LEPAR CURRENT REGENCY OF SOUTH BANGKA) Sartika, Dewi Jurusan Manajemen SumberdayaPerairan FPPB-UBB, Balunijuk Hartoko, Agus Program tudi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kurniawan, Kurniawan Jurusan Manajemen SumberdayaPerairan FPPB-UBB, Balunijuk Batimetri; Citra Landsat 8 OLI; Echosounder; Selat Lepar Selat Lepar merupakan perairan dengan batas antara kawasan pesisir Sadai dengan kawasan Pulau Lepar Kabupaten Bangka Selatan. Informasi perairan kedalaman (batimetri) merupakan salah satu hal penting dalam menentukan wilayah alur jalannya pelayaran dalam perencanaan kawasan industri Sadai.  Penelitian ini bertujuan untuk menganalisis data batimetri lapangan dan citra Satelit Landsat 8 dan membuat dalam bentuk peta 3D di perairan Selat Lepar Kabupaten Bangka Selatan. Penelitian ini dilaksanakan pada bulan Oktober hingga April di perairan Selat Lepar Kabupaten Bangka Selatan.  Metode yang telah digunakan adalah metode akustik dengan melakukan pengambilan data batimetri di lapangan menggunakan singlebeam echosounder kemudian data lapangan dibandingkan dengan metode pengolahan citra landsat 8 menggunakan algoritma Satellite Derived Bathymetry (SDB). Algoritma Satellite Derived Bathymetry (SDB) menggunakan tiga pendekatan yaitu rationing, thresholding dan mean value Kanal 5 dan Kanal 2 citra satelit Landsat 8.  Pengukuran lapangan nilai batimetri perairan Selat Lepar Kabupaten Bangka Selatan berkisar antara 0.8 – 19 m.  Model pendekatan thresholding memiliki hubungan yang paling baik dengan persamaan regresi polinomial y = -235,3(B2-B5)2 + 126,2(B2-B5) - 13.35 dan y = -235,3(B5-B2)2 – 126,2(B5-B2) – 13,35, nilai koefisien determinasi tertinggi R2= 0,849. Peta layout  batimetri perairan Selat Lepar Kabupaten Bangka Selatan dalam bentuk 3D menghasilkan kedalaman 0-19 m dengan bentuk dasar perairan dangkal, landai dan dangkal.     Lepar Strait is a borderline area between Sadai coastal area with Lepar Island area of South Bangka Regency. Basic information of bathymetry is one of important things in determining the area of the shipping path in the planning of the Sadai industrial estate. This study aims to analyze the bathymetry and Landsat 8 satellite data and create it in 3D map form in the Lepar Strait area of South Bangka Regency. This research was conducted from October to April in Lepar Strait waters in South Bangka Regency. The method that has been used is acoustic method by collecting data using singlebeam echosounder and data then proceed with the method of image processing of landsat 8 using Satellite Derived Bathymetry (SDB) algorithm. The Satellite Algorithm Derived Bathymetry (SDB) used  three  approaches  namely  rationing,  thresholding  and  the  mean  value  of Kanal 5 and Kanal 2 Landsat 8 satellite. The measurement of  bathymetry Lepar Strait of South Bangka Regency between 0.8 to 16 m. The thresholding approach model has the best relation with the polynomial regression equation y = -235.3(B2-B5)2  + 126.2 (B2-B5) - 13.35 and y = -235.3 (B5-B2) 2 - 126.2 (B5-B2) –13.35, coefficient value of determination main R2  = 0.849. Map of bathymetry layers Lepar Strait of South Bangka Regency in the form of 3D produces a depth of 0-19 m with a shallow, slope and shallow base.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/20530 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23066 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc UJI IN VITRO DAN KARAKTER PROTEIN EKSTRASELULER (ECP) Edwardsiella tarda DENGAN KONSENTRASI ETHANOL BERBEDA (In Vitro Test and Character of Extracellular Protein (ECP) Edwardsiella tarda with Different Ethanol Concentration) Herlina, Cucun Brawijaya University http://orcid.org/0000-0002-6429-8526 Yanuhar, Uun Brawijaya University Maftuch, Maftuch Brawijaya University Edwardsiella tarda; Ekstraseluler Protein (ECP); Presipitasi; SDS-PAGE Protein ekstraseluler (ECP) bakteri memiliki kemampuan imunogenik dan dapat meningkatkan sistem imun tubuh inang. Komponen ECP diantaranya flagellin, protease dan metalloprotease mampu berdifusi pada sel inang untuk mengaktifkan respon imun. Tujuan penelitian adalah untuk mengetahui produksi protein ekstraseluler E. tarda dengan presipitasi ethanol pada konsentrasi berbeda sebagai potensi protein imunogenik secara in vitro. Metode penelitian yaitu kultur bakteri E. tarda, preparasi protein ekstraseluler, presipitasi protein, konsentrasi protein ditentukan denganspektrofotometer dan SDS-PAGE, uji in vitro protein ECP E. tarda, dan uji nilai RPS. Hasil protein ekstraseluler yang diperoleh dengan presipitasi ethanol tertinggi pada konsentrasi 90% sebanyak 5,69 mg/ml dan terendah pada konsentrasi 80% sebanyak 4,81 mg/ml. Hasil karakterisasi protein dengan SDS-SDSPAGE antara 30-60 kDa. Hasil uji in vitro vaksin E. tarda (presipitasi ethanol 100%) baik dari uji viabilitas maupun sterilitas menunjukkan tidak terdapat koloni yang tumbuh. Hasil nilai RPS pada ikan nila (Oreochromis niloticus) mencapai 100% dengan masa pemelihaaraan 9 hari pasca imunisasi.   ECP bacteria have immunogenic abilities and can increase the host's immune system. ECP components which are flagellin, protease, metalloprotease can diffuse to host cell for the activation immune response. The study aimed to determine the production of extracellular protein E. tarda with ethanol precipitation at different concentrations as a potential immunogenic protein by in vitro test. The research methods were E. tarda bacterial culture, extracellular protein preparation, protein precipitation, protein concentration determined by spectrophotometer and SDS-PAGE, in vitro ECP E. tarda protein test, and RPS value test. The results of extracellular protein obtained by the highest ethanol precipitation at a concentration of 90% as much as 5.69 mg/ml and the lowest at 80% concentration as much as 4.81 mg/ml. The results of the characterization of proteins with SDS-SDS-PAGE between 30-60 kDa. The results of the in vitro test of E. tarda vaccine (100% ethanol precipitation) from both the viability and sterility tests showed that there were no growing colonies. The results of the RPS in tilapia (Oreochromis niloticus) reach 100% with a maintenance period of 9 days after immunization. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23066 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6849 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Different Percentages of Gonad Maturity on the Fertility and Haching Rate in Artificial Breeding of Abalone (Haliotis Asinina) Suminto, Suminto Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Sani, Dyah Anggun Permana Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Susilowati, Titik Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Abalone is one of the marine mollusk that has high economic value. Mass abalone cultivation requires the mature gonads broodstock to produce seeds, but the maturity of the gonads of male and female often can not be simultaneously. Artificial insemination using a solution of ammonia is one solution to produce abalone seed in the hatchery. Ammonia solution can increase motility, fertilization rate of eggs and abalone seed production, so the provision of seeds for cultivation of abalone is independent from nature. The research of artificial insemination was carried out at various levels of gonadal maturation dams abalone (H. asinina) to determine the percentage of fertility and hatching rate of eggs from each Gonad Maturity Level. In stadia gonadal recovery, no fertilization occurs, whereas in the gonads maturing stadia had fertilization and hatching rate 24.33 ± 2.08% and 22.12 ± 2.18%, respectively at ripe stadia, gonads had been fertilization and hatching rate were 94.67% ± 1.53% and 82.82% ± 3.58%, wasn’t recorded in the stadia spent fertilization did not occur because the eggs were released in culture media. Gonad Maturity Level, thus can be used in artificial insemination was the ripe gonadal stadia, which had the highest percentage of both levels of fertilization and hatching rate with a diameter ranging from 189.6-252.8 μm. Key Words: Abalone (H. asinine); Artificial breeding; Gonad Maturity Level; Hatching Rate Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6849 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/48116 2024-08-05T14:53:37Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/77041 2026-02-05T07:52:26Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Cahyo, Alvin Kurniawan Dwi Suyasa, I Nyoman Politeknik Ahli Usaha Perikanan Jl. Aup No.1, RT.1/RW.9, Ps. Minggu, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12520 Dewi, Ita Junita Puspa Rajungan (Portunus pelagicus) merupakan komoditas perikanan bernilai tinggi yang banyak ditangkap di wilayah Paciran, Jawa Timur. Namun, penggunaan bubu lipat sebagai alat tangkap utama masih kurang selektif dan rajungan berukuran di bawah legal size, sehingga berpotensi mengancam keberlanjutan sumber daya. Penelitian ini bertujuan untuk meredesain bubu lipat agar lebih selektif terhadap rajungan legal size sesuai dengan ketentuan Permen KP No. 7 Tahun 2024. Metode penelitian menggunakan experimental fishing dengan membandingkan efektivitas bubu lipat konvensional dan bubu lipat hasil redesain yang dilengkapi celah pelolosan (escape vent). Hasil uji t menunjukkan perbedaan signifikan antara kedua alat tangkap (t hitung = 8.973 > t tabel = 2.9686; Sig. = 0.00 < 0.05), menandakan bahwa modifikasi desain berpengaruh nyata terhadap produktivitas dan selektivitas hasil tangkapan. Hasil penelitian menunjukan bahwa bubu lipat redesain mampu menangkap 100% rajungan berukuran legal, sementara 62% dari total tangkapan bubu konvensional merupakan rajungan berukuran illegal. Walaupun jumlah tangkapan bubu redesain lebih sedikit, alat ini terbukti lebih ramah lingkungan dan mendukung praktik perikanan berkelanjutan. Penelitian ini memberikan rekomendasi inovasi alat tangkap selektif yang dapat diterapkan dalam pengelolaan perikanan rajungan guna menjaga kelestarian ekosistem laut serta meningkatkan kualitas hasil tangkapan nelayan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/77041 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/26727 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191231 2019 eng " 2549-0885 1858-4748 dc Boesono, Herry Universitas Diponegoro Prihantoko, Kukuh Eko Pramadya, Rifky Pukat cincin yang beroperasi di samudera memiliki ukuran yang lebih besar dibandingkan dengan jenis alat tangkap lainnya. Ukuran purse seine disesuaikan dengan wilayah pengoperasian dan target tangkapan alat tangkap ini. Bahan dan konstruksi sangat mempengaruhi keberhasilan alat tangkap ini dalam melakukan operasi penangkapan. Perhitungan teknis konstruksi diperlukan untuk mendapatkan konstruksi alat tangkap yang efektif dan efisien dalam melakukan operasi penangkapan. Penelitian ini menggunakan alat tangkap purse seine cakalang. Metode penelitian ini menggunakan metode analisis deskriptif kuantitatif dengan menggunakan rumus Fridman. Tipe purse seine pada alat tangkap ini merupakan tipe purse seine persegi empat dengan panjang purse seine cakalang sebesar 806,4 meter, kedalaman purse seine sebesar 142,8 meter, dan berat purse seine di udara sebesar 9818,68 kg. Nilai gaya apung didapatkan sebesar 4608,69 kgf, nilai gaya tenggelam didapatkan besar 2562,63 kgf dan nilai rasio antara gaya apung dan gaya tenggelam sebesar 1,80. Rasio gaya apung dan gaya tenggelam ideal adalah 1,5-2,0. Nilai rata-rata kecepatan tenggelam di kedalaman 50 meter sebesar 0,27 m/s. Nilai rata-rata kecepatan tenggelam di kedalaman 100 meter sebesar 0,13 m/s. Kecepatan tenggelam bagian purse seine mengalami penurunan seiring dengan bertambahnya kedalaman perairan. Waktu tenggelam penuh yang dibutuhkan bagian pada purse seine cakalang sebesar 14 menit 07 detik. Kecepatan kapal yang baik untuk melakukan setting alat tangkap ini adalah 3,5-6,0 knot.   Purse seine which operated in the ocean had a large size compared to another types of fishing gear. The size of the purse seine is adjusted to the fishing ground and fish target of the catch. Material and construction greatly affect the success of this fishing gear in fishing operations. Technical calculation of construction is needed to get effective and efficient fishing gear construction when conducting fishing operations. This study uses skipjack tuna purse seine. This research method uses quantitative descriptive analysis method using purse seine physics equation approach by Fridman (1985). The length of skipjack tuna purse seine is 806.4 meters with the depth of purse seine is 9142,8 meters, and the weight of purse seine in the air is 9818.68 kg. The value of buoyancy force was obtained at 4608.69 kgf, the value of sinking force was 2562.63 kgf and the value of the ratio between buoyancy force and sinking force was 1.80. The best ratio of buoyancy force and sinking force is 1.5-2.0. The value of average sinking speed at a depth of 50 meters is 0,27 m/s, and at a depth of 100 is 0.13 m/s. Singkings speed of purse seine has decreasing value following by increasing water depth. The full sinking time required for the skipjack purse seine is 14 minutes 07 seconds. The best speed for setting this fishing gear is 3.5-6.0 knots. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/26727 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/26727/76332 Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8104 2015-06-29T01:13:30Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc PENAMBAHAN VITAMIN C PADA PAKAN DAN PENGARUHNYA TERHADAP RESPON OSMOTIK (Addition of Ascorbic Acid in Feed and Effects on Osmotic Responses, Feed Efficiency and Growth of Gesit Tilapia (Oreochromis sp) in Various Osmolarity of Water Medium) Kursistiyanto, Nurcahyo Magister Manajemen Sumberdaya Pantai FPIK-UNDIP Semarang Anggoro, Sutrisno Magister Manajemen Sumberdaya Pantai FPIK-UNDIP Semarang Suminto, Suminto Magister Manajemen Sumberdaya Pantai FPIK-UNDIP Semarang Vitamin C yang tepat dalam pakan diharapkan dapat meningkatkan efisiensi pakan dan pertumbuhan ikan nila gesit yang dipelihara pada media dengan osmolaritas berbeda. Tujuan dari penelitian ini (1) untuk menguji respon osmotik, efisiensi pakan dan pertumbuhan ikan nila gesit dalam berbagai osmolaritas media (2) mengetahui pengaruh penambahan vitamin C pada pakan yang diharapkan mampu memperbaiki respon osmotik (3) meningkatkan efisiensi pakan dan pertumbuhan ikan nila gesit yang dipelihara pada media dengan tingkat osmolaritas berbeda. Hewan uji yang digunakan adalah benih ikan nila gesit dengan bobot 6.22 ± 0.089. Metode yang digunakan adalah metode eksperimental uji laboratoris. Rancangan percobaan yang dipergunakan dalam penelitian ini adalah Rancangan Acak Lengkap dengan pola Faktorial, dengan 3 kali pengulangan. Perlakuan kelompok pertama (A) osmolaritas media yang berbeda yaitu (5.41, 141.34, 288.08, 434.83, 581.57 dan 728.31 mOsm/L H2O), sedangkan kelompok perlakuan kedua (B) adalah vitamin C ditambahkan pada makanan dengan dosis 100 mg (kg pakan)-1 dan 150 mg (kg pakan) -1. Sampling dilakukan 45 hari yang dipergunakan untuk menentukan pertumbuahan bobot biomassa, tingkat konsumsi pakan, efisiensi pemanfaatan pakan, protein efisiensi ratio, laju pertumbuhan spesifik dan kelulus hidupan. Data dianalisis dengan analisis kovarians (ANCOVA) dan polinomial orthogonal. Untuk mengetahui perbedaan perlakuan diuji dengan uji F dengan program SPSS versi 17. Hasil penelitian menunjukkan bahwa berbagai osmolaritas media air memiliki pengaruh yang signifikan (p < 0.01) dari semua variabel. Penambahan vitamin C dalam pakan memiliki pengaruh yang signifikan terhadap respon osmotik, dengan probabilitas sebesar 0.000 (p < 0.01), dan memiliki pengaruh yang signifikan (p < 0.05) terhadap pertumbuhan berat biomassa, efisiensi pakan dan rasio efisiensi protein. Interaksi antara media osmolaritas yang berbeda dan vitamin C memiliki pengaruh yang signifikan (p < 0.01) pada respons osmotik. Pertumbuahan bobot biomassa, tingkat konsumsi pakan, efisiensi pemanfaatan pakan, protein efisiensi ratio, laju pertumbuhan spesifik dan kelulus hidupan menunjukkan pola kuadrat. Kata kunci : Osmolaritas pada media, vitamin C, respon osmotik, effisiensi pakan, pertumbuhan.   Proper ascorbic acid in feed is expected to increase the feed efficiency  and growth of gesit tilapia  were reared in various osmolarity of water medium . The purpose of this study (1) to examine the osmotic responses , feed efficiency and growth of gesit tilapia in various osmolarity of water medium (2 ) to examine the effect of proper ascorbic acid to osmotic responses, feed efficiency and growth of gesit tilapia , (3) examine the interaction between the various osmolarity of water medium and ascorbic acid to osmotic responses, feed efficiency and growth of  gesit tilapia . The material used is a seed gesit  tilapia weighing 6.22 ± 0.089. The research is experiments laboratory.  Research using completely randomized design with factorial   and three repplications. The first group treatment (A) osmolarity of water medium i.e. (5.41, 141.34, 288.08, 434.83, 581.57 and 728.31 mOsm/L H2O), whereas the second group treatment (B) is ascorbic acid  added to the feed at a dose of 100 mg (kg of feed) -1 and 150 mg (kg of feed) -1. 45 day old gesit tilapia maintenance and variables taken this research: were the osmotic responses, feed efficiency , growth,  protein efficiency ratio, survival growth rate, energy retention and survival rate. Data were analyzed by analysis of covariance (ANCOVA) and orthogonal polynomial. To know the difference in treatment was tested using the F test with SPSS program version 17. The results showed that the various  osmolarity of water medium have influence significant (p < 0.01) on all variables. An addition of ascorbic acid in feed have influence significant on the osmotic responses, with a probability of 0.000 (p < 0.01), and had a significant influence (p < 0.05) on the growth of biomass weight, feed efficiency and protein efficiency ratio. Interaction between various osmolarity of water medium and ascorbic acid have influence significant(p < 0.01) on the osmotic responses. The pattern of osmotic responses, feed efficiency, growth, protein efficiency ratio, survival growth rate and energy retention showed a quadratic pattern. Keywords : osmolarity of water medium ,ascorbic acid, osmotic responses, feed efficiency, growth. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8104 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/217 2025-04-26T12:43:12Z saintek:RSA

nmb a2200000Iu 4500 "101025 2010 eng " 2549-0885 1858-4748 dc KOMPOSISI DAN DISTRIBUSI LARVA IKAN PELAGIS DI ESTUARIA PELAWANGAN TIMUR, SEGARA ANAKAN, CILACAP Subiyanto, Subiyanto Ruswahyuni, Ruswahyuni Gondo Cahyono, Dwi Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Penelitian mengenai komposisi dan distribusi larva ikan di estuaria Pelawangan Timur, Segara Anakan, Cilacap telah dilakukan dua minggu sekali selama bulan Juli-Oktober 2003. Pengambilan sampel larva dilakukan di muara dan sungai Donan, Sapuregel, dan Kembangkuning dengan menggunakan Plankton net mesh size 0,2 mm yang ditarik perahu dengan kecepatan rata-rata 2 knot selama 10 menit. Selama penelitian larva yang tertangkap di Pelawangan Timur sebanyak 1688 individu terdiri dari 15 famili yang didominasi oleh Pomacentridae (29,84%), Atherinidae (28,66%), Gobiidae (20,31%), Clupeidae (11,19%), sedangkan untuk jenis larva lainnya hanya ditemukan dalam jumlah yang sedikit, yaitu kurang dari 2%. Famili Pomacentridae, Atherinidae, dan Gobiidae mempunyai distribusi yang sama yaitu tersebar merata di semua stasiun penelitian dengan jumlah individu terbanyak pada sungai Donan dan Sapuregel. Distribusi famili Clupeidae mempunyai jumlah individu terbesar pada Muara sungai Donan. Sebagian besar larva merupakan ikan laut yang melakukan ruaya ke perairan Pelawangan Timur. Sedangkan pola distribusi larva ikan mempunyai kecenderungan mengadakan migrasi ke daerah mangrove yang terdapat di sepanjang pinggiran sungai Donan dan Sapuregel. Kelimpahan larva terbanyak di daerah muara sungai Donan dan sungai Sapuregel. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/217 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/44539 2025-04-15T07:52:27Z saintek:RSA

nmb a2200000Iu 4500 "221223 2022 eng " 2549-0885 1858-4748 dc Pramurdya, Yesika Nanda Program Studi Magister Ilmu Biologi, Universitas Udayana Watiniasih, Ni Luh Ginantra, I Ketut Penurunan hasil tangkapan ikan cakalang di wilayah Selatan Bali diduga merupakan mekanisme terjadinya tangkap lebih. Tujuan dari penelitian ini adalah mengestimasi populasi dan stok ikan cakalang menggunakan metode rasio potensi pemijahan, dalam menunjang keberlanjutan sumberdaya ikan cakalang di wilayah Selatan Bali. Penelitian ini dilaksanakan pada bulan Juni sampai Desember 2021. Pengumpulan data dilakukan melalui observasi lapangan di UPTD TPI Kedonganan. Teknik sampling yang digunakan adalah stratified random sampling. Struktur panjang cagak ikan cakalang berkisar antara 24.1 – 27.1 cm FL sampai 55.1 – 58.1 cm FL dengan pola pertumbuhan bersifat allometrik positif. Persamaan laju pertumbuhan adalah Lt = 59.7 (1 - ). Nilai F sebesar 1.14; nilai M sebesar 0.488; nilai Z sebesar 1.628 dan nilai E sebesar 0.7 (E >0.5) per tahun yang mengindikasikan bahwa telah terjadi tangkap lebih. Tingkat Kematangan Gonad (TKG) dan klasifikasi perkembangan gonad didominasi oleh ikan yang sudah matang gonad dengan nilai Lm ikan cakalang betina adalah 41.28 cm FL dan Lm ikan cakalang jantan adalah 41.29 cm FL. Stok ikan cakalang berada dalam kondisi overexploited yang ditunjukkan dari nilai SPR sebesar 19% (SPR <20%).   Decreasing catches of skipjack in Southern Bali waters is thought to be a mechanism for overfishing. The aim of this study is to  estimate population and stock of skipjack tuna using spawning potential ratio method, in order to maintain the sustainability of this species in the southern region of Bali. This research was carried out from June to December 2021. Data collection was carried out through field observations at UPTD TPI Kedonganan. A stratified random sampling method was used as the chosen sampling technique in this study. The fork length (FL) structure of skipjack tuna ranges from 24.1-27.1 cm FL to 55.1-58.1 cm FL with a positive allometric growth pattern. The growth rate equation is Lt = 59.7 (1 - ). The F value is 1.14; M value = 0.488; Z value = 1.628; and E value = 0.7 (E > 0.5) per year, respectively. This indicates that overfishing has occurred in the area. Gonad Maturity Level (TKG) and gonad development classification were dominated by mature fish with the Lm value of female and male skipjack tuna being 41.28 cmFL and 41.29 cmFL. The results of another analysis showed that skipjack tuna stock was in an overexploited condition as indicated by the SPR value of 19% (SPR <20%). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-02-10 02:56:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/44539 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 4 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/32529 2021-04-21T11:21:16Z saintek:RSA

nmb a2200000Iu 4500 "201023 2020 eng " 2549-0885 1858-4748 dc THE ERADICATION OF IUU FISHING IN INDONESIA FOR ECONOMIC FISHERIES Suherman, Agus Departemen Perikanan Tangkap, FPIK UNDIP Santosa, Mas A Indonesia Ocean Justice Initiative and Former Coordinator of Special Advisors in Task Force Wijayanto, Dian Departemen Perikanan Tangkap, FPIK UNDIP Sunoko, Rahmadi School of Business, IPB University Juwana, Stephanie lpgsuherman2@gmail.com IUU fishing; economic; Indonesia Illegal, Unreported and Unregulated (IUU) fishing poses a significant challenge to the management of marine and fisheries resources. This practice brings negative impacts on several aspects, including the economy. To address this problem, the Government of Indonesia established a special Task Force to Combat Illegal Fishing, which later  is known as Task Force 115, through a Presidential Regulation Number 115 of 2015. Task Force 115 was formed with a mandate to execute law enforcement operations to combat illegal fishing.  In general, the existence of Task Force 115 brings favourable impacts to the economy, especially from the fisheries sector. It should be noted that, because Task Force 115’s main tasks are enforcement related, the impacts to the economy are not direct. The purpose of this study was to analyse the role of the Task Force 115 in IUU fishing eradication activities that occur in the jurisdictional areas of the  Republic of Indonesia in terms of the economic fisheries. Efforts of combating illegal fishing does not necessarily generate an increase in fisheries GDP, tax income and exports. Instead, those positive impacts are attributed to a set of policies imposed by the Ministry of Marine Affairs and Fisheries since 2014, which oriented to the responsible and sustainable fisheries. The establishment of Task Force 115 was part of that. Task Force 115’s works created deterrence and triggered compliance of fisheries business actors with the prevailing laws and regulations. Compliance eventually brings positive impacts on the economy. In 2015, growth of fisheries GDP, which amounted to 8,37%, surpassed national GDP of 4.79%. The growth of fisheries GDP reached its peak during the fourth quarterly of the year, which is 8,96% from last year’s during the same period. In 2016, the growth of fisheries GDP reached 5.15%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/32529 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8121 2015-06-30T05:04:47Z saintek:RSA

nmb a2200000Iu 4500 "140225 2014 eng " 2549-0885 1858-4748 dc BUDIDAYA CACING TANAH SEBAGAI SUMBER PAKAN ALTERNATIF DALAM PEMELIHARAAN LELE DUMBO DI PONDOK PESANTREN HIDAYATULLAH, SEMARANG (The Farming of arthworms as an Alternative Feeding of Maintenance Catfish in Hidayatullah Boarding School, Gedawang, Semarang) Chilmawati, Diana Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP-Semarang Hutabarat, Johanes Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP-Semarang Samijan, Istiyanto Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP-Semarang Pinandoyo, Pinandoyo Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP-Semarang Herawati, V. E. Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP-Semarang Pemenuhan kebutuhan pakan masih menjadi kendala dalam budidaya lele dumbo di pondok pesantren Hidayatullah Gedawang Semarang. Biaya untuk kebutuhan membeli pakan/pelet tergolong besar. Pemberian pakan cacing tanah (Lumbricus rubellus) sebagai pakan alternatif selain pellet dapat diterapkan untuk mengatasi permasalahan ketersediaan pakan di ponpes tersebut. Sehubungan dengan hal tersebut maka teknologi yang tepat adalah teknologi budidaya pakan alami sebagai pengganti/substitusi pakan buatan. Tujuan Pengabdian Kepada Masyarakat ini adalah untuk mengenalkan dan menerapkan teknologi budidaya cacing tanah (L. rubellus) sebagai pakan alternatif dalam budidaya lele dumbo pada kolam terpal di ponpes Hidayatullah, Desa Gedawang, Banyumanik, Semarang.             Hasil pengamatan tentang jumlah kematian benih lele selama kegiatan Pengabdian Kepada Masyarakat ini didapatkan Tingkat Kelulushidupan (Survival Rate/SR) lele dumbo yang dipelihara dengan penerapan pemberian pakan berupa pellet dan cacing tanah, SR nya lebih tinggi (89.83%) dibanding lele yang hanya diberi pakan pellet saja (71.16%).  Hasil pertumbuhan lele dumbo yang diberi pakan pellet dan cacing tanah juga menunjukkan lebih tinggi (72 kg) daripada pertumbuhan lele dumbo yang hanya diberi pellet saja (65 kg). Kata Kunci :    Cacing tanah (Lumbricus rubellus), pakan alternatif, lele dumbo (Clarias gariepius)   Hidayatullah Islamic boarding school, Gedawang Semarang, having catfish farming as an alternative effort to support the school revenue. Feed is a component of fish production which absorbs more than 30% of the cost. This condition is perceived to be quite heavy for a boarding school to keep their fish culture running well. Earthworms (Lumbricus rubellus), can be used as an alternative feeding for the fish, can be applied to overcome the problems of availability on artificial food. Therefore, the application on live food organisms culture technology is the best solution to subtitute artificial feed. Introduction of earthworms cultivations technology is required to solve the procurement artificial feed problem for the fish farming that experienced by Hidayatullah Islamic Boarding Scholl, Gedawang, Semarang. Based on field trials show the result that the survival rate of the catfish that fed with the earthworms reaching 89.83 % after 71 days of culturing. Giving earthworms, can save the needs of artificial diets up to 28.84%. Catfish which fed with combination of pellets and earthworms grow faster with 72 kg in weigh biomass than the fish which only fed with artificial feed (65 kg). Based on these results, it can be concluded that the introduction of appropriate technologies such as earthworms’ cultivations, can reduce the use of artificial feed and increase the growth of African catfish. The use of earthworms feed can reduce feed costs up to 28.84%.   Key words : Earthworms (Lumbricus rubellus), alternative feeding, catfish (Clarias gariepius) Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 13:33:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8121 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 2 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2064 2020-12-07T08:06:52Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Gelatin Application of Nile Tilapia (Oreochromis niloticus) Bone to The Quality of The Jelly Candy Maryani, Maryani Program Studi Teknologi Hasil Perikanan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang Kampus UNDIP Tembalang, Jl. Prof. H. Soedarto, SH Tembalang Surti, Titi Program Studi Teknologi Hasil Perikanan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang Kampus UNDIP Tembalang, Jl. Prof. H. Soedarto, SH Tembalang Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang Kampus UNDIP Tembalang, Jl. Prof. H. Soedarto, SH Tembalang The characteristic of a jelly candy is sweet in taste and has elastic texture. The elastic texture due to gelling agent addition such as carrageenan, sea weed, gum arabic, and gelatin. The Utilization of nile tilapia bone as the source of gelatin product is away to prevent gelatin that is not halal. The aim of the research was to know the concentration of nile tilapia bone gelatin which produced the best quality of jelly candies based on physical chemical characteristic as well as the member of Escherichia coli and hedonic value. The experiment was designed using a Completely Randomized Design with 3 treatments (9%, 10%, 11%) of nile tilapia bone gelatin concentrations. Each treatment was done in triplicate. Data of elasticity, moisture content, water activity, pH, sugar contents were analyzed with Analysis of Varians (ANOVA). A Honestly Significant Difference (HSD) test was conducted to find out the difference among the treatments. The data of hedonic quality was analyzed by a Kruskall Wallis test and continued by a Multiple Comparison. The result showed that the addition of 10% nile tilapia bone gelatin produced the best quality product which had the elasticity (14.20 Newton); moisture content (17.06%); Aw 0.785; pH 4.78; sugar content (48.23%); hedonic (8.13) and the product did not content Escherichia coli bacteria. Key Words : Jelly Candy, Nile Tilapia Bone Gelatin, Quality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2064 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/52139 2025-04-15T07:25:05Z saintek:RSA

nmb a2200000Iu 4500 "231029 2023 eng " 2549-0885 1858-4748 dc MAPPING ZONATION OF FISHING AREA AND FISHERIES PRODUCTION POTENTIAL IN BONE BAY: PERSPECTIVE OF FISHERIES CATCHING EQUIPMENT IN BONE, SOUTH SULAWESI, INDONESIA Adhawati, Sri Suro Department of Fisheries, Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, Indonesia. Hajar, M. Abduh Ibnu Department of Fisheries, Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, Indonesia Fakhriyyah, Sitti Department of Fisheries, Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, Indonesia Bone Bay; Fisheries; Mapping Zonation; Production This study aims to map fishing areas based on the operating coordinates of fishing gear. The research was carried out in two coastal districts, namely in Kajuara waters (Kajuara is on the south coast of Bone Bay at coordinate 5°06′39.77″–5°02′17.40″S and 120°27′03.46″ –120°30′37.74″E) and Lamuru waters (Lamuru is on the north coast of Bone Bay at coordinate 4°26′37.85″–4°20′49.52″S and 120°27′03.54″–120°34′06.58″E). The type of survey is taking a sample from one population and using a questionnaire as much 111 respondents, consisting of 65 respondents from Kajuara and 46 respondents from Lamuru. Answer the research objectives using Global Positioning System, satellite Citra (Google Earth Pro), percentage analysis (%) and total revenue analysis (TR). In Kajuara waters, there are seven types of fishing gear operating, four fishing zones, 11–18 types of catch, total catch is 335 kg/trip. In Lamuru waters; there are six types of fishing gear operating, five fishing zones, 4–16 types of catch, total catch is 290 kg/trip. Fishing gear in zone three Kajuara (fishing area at coordinates 5°06'43.41"- 5°02'07.61"S and 120°21'11.68”- 120°23'07.24E); lift nets, fishing rods and purse seines; in zone five (fishing area at coordinates 4°28'19.50"- 4°15'25.68"S and 120°27'03.54"- 120°34'06.58"E) the waters of Lamuru boat lift net and boat lift net cungkil (gouge) are the zones (fishing area) with the greatest potential and production value. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-11-01 05:59:06 https://ejournal.undip.ac.id/index.php/saintek/article/view/52139 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 3 (2023): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/52139/166648 Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/26721 2022-04-19T17:30:04Z saintek:RSA

nmb a2200000Iu 4500 "201225 2020 eng " 2549-0885 1858-4748 dc Hayati, Febsi Dewi, Eko Nurcahya Suharto, Slamet Edible film merupakan salah satu pengemas yang digunakan untuk menambah fungsi pengawetan dengan ditambah S.platensis sebagai antioksidan pada bahan pangan karena bersifat biodegradable atau dapat terurai oleh mikroba. S. platensis digunakan sebagai senyawa antioksidan karena mempunyai kandungan pigmen fikosianin. Penambahan Serbuk S. platensis  dengan konsentrasi 1%, 1,5% dan 2% digunakan sebagai barrier terhadap kerusakan produk akibat oksidasi dan ketengikan makanan.Tujuan penelitian ini adalah mengetahui pengaruh penambahaan serbuk S.platensis berbeda terhadap karakteristik edible film alginat dan mendapatkan konsentrasi serbuk S.platensis terbaik edible film. Metode penelitian yang digunakan bersifat eksperimental laboratories dengan rancangan percobaan Rancangan Acak Lengkap (RAL). Parameter yang diamati adalah uji ketebalan, kuat tarik, persen pemanjangan, laju transmisi uap air, kelaruan, total fenol dan aktivitas antioksidan ABTS (2,2'-azino-bis(3-ethylbenzothiazoline6-sulphonic acid). Data dianalisis menggunakan Analisa sidik ragam (ANOVA). Untuk mengetahui perbedaan antar perlakuan, data diuji dengan uji lanjut BNJ. Hasil penelitian menunjukkan bahwa perbedaan konsentrasi S. platensis berpengaruh nyata (P<0,05) terhadap nilai ketebalan, kuat tarik, persen pemanjangan, kelarutan, laju transmisi uap air, total fenol dan aktivitas antioksidan ABTS. Konsentrasi terbaik edible film alginat dengan penambahan serbuk S.platensis yaitu 1 % dengan nilai ketebalan 0.2 mm , kadar fenol 52.373 %, aktivitas antioksidan 37.695% dan kelarutan 50.21%. Namun pada laju transmisi uap air cenderung tinggi karena pengaruh gliserol yang bersifat hidrofilik.   Edible film is one of the packaging used to increase the preservation function with added S. platensis as an antioxidant in food because it can biodegrade or can be decomposed by microbes. S. platensis is used as an antioxidant compound because it contains phycocyanin pigment. The addition of S. platensis powder with concentrations of 1%, 1.5% and 2% is used as a barrier against product damage due to oxidation and rancidity of food. This research aimed to know the effect of the addition concentration of S. platensis powder to the characteristics of the edible film of alginate and the best concentration of S. platensis powder to make an edible film.. This research used experimental laboratory methods with a completely randomized design (CRD) experimental design. The parameters of this research were thickness, tensile strength, elongation percentage, vapor transmission rate, solubility test, total phenol and antioxidant activity of ABTS (2,2'-azino-bis (3-ethylbenzothiazoline6-sulphonic acid). The data were analyzed using analysis of variance analysis (ANOVA). Further tests needed to know the difference between each treatment used HSD. The results showed that the different concentrations of S. platensis powder had a significantly affected (P<0.05) thickness, tensile strength, elongation percentage, solubility, vapor transmission rate, total phenol and ABTS antioxidant activity The best concentration of edible film alginate with the addition of S. platensis powder was 1% with the thickness value of 0.2 mm, phenol content of 52,373%, antioxidant activity of 37,695% and solubility of 50.21%. However, the test result of the vapor transmission rate tended to be high due to the addition of glycerol which is hydrophilic Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/26721 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9326 2015-10-27T10:44:30Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc KARAKTERISTIK TEKSTUR DAN DAYA IKAT AIR GEL SURIMI IKAN LELE DENGAN PENAMBAHAN ASAM TANAT DAN EKSTRAK FENOL TEH TEROKSIDASI(TextureProfileAnalysisandWater Holding Capacity of Cat Fish Surimi Gel with Addition of Oxidised Phenolic Tea ExtractandTanic Acid) Wijayanti, Ima Program Studi Teknologi Hasl Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang Santoso, Joko Departemen Teknologi Hasil Perairan Sekolah Pascasarjana Institut Pertanian Bogor Jacob, Agus M. Departemen Teknologi Hasil Perairan Sekolah Pascasarjana Institut Pertanian Bogor ABSTRAK Produksi Ikan lele melimpah dan bisa menjadi pilihan sebagai bahan baku bagi produk olahan hasil perikanan misalnya surimi.  Teknologi pengolahan surimi dari bahan baku ikan air tawar masih terus dikembangkan karena kualitas gel yang dihasilkan masih rendah. Penambahan komponen fenolik teroksidasi pada surimi  telah dikaji pada beberapa spesies ikan laut, namun demikian penggunaannya pada  ikan  air tawar belum pernah  dilakukan.  Penambahan komponen fenolik teroksidasi pada surimi ikan lele diharapkan menjadi salah satu alternatif untuk meningkatkan kualitas gel. Penelitian ini bertujuan untuk mempelajari pengaruh komponen fenol teroksidasi dalam hal ini asam  tanat komersial dan ekstrak teh teroksidasi terhadap karakteristik tekstur dan daya ikat air gel surimi lele. Konsentrasi asam tanat  dan ekstrak teh teroksidasi yang ditambahkan  masing-masing: 0%; 0,1%; 0,2%; 0,3%; 0,4% dan 0,5% dari kadar protein. Penambahan senyawa fenol teroksidasi asam tanat dan ekstrak fenol teh teroksidasi berpengaruh nyata terhadap karakteristik tekstur daya ikat air gel surimi lele (Clarias gariepinus). Penambahan asam tanat dan ekstrak teh teroksidasi meningkatkan nilai hardness, springines, adhesive force dan gumminessdibandingkan kontrol, namun tidak berpengaruh nyata pada nilai cohesivemess. Nilai WHC gel surimi meningkat seiring dengan konsentrasi asam tanat dan ekstrak teh teroksidasi yang ditambahkan. Secara umum hasil analisis karakteristik kimia, fisik dan struktur mikro menunjukkan penambahan senyawa fenol teroksidasi dapat meningkatkan karakteristik gel surimi lele.  Konsentrasi optimum yang dapat digunakan untuk meningkatkan karakteristik gel surimi lele adalah 0,5% pada asam tanat dan 0,4% pada ekstrak teh.   Kata kunci : Surimi Ikan Lele, Asam Tanat, Ekstrak teh, Texture Profile Analysis, WHC   Catfish production is abundant and could be an option as a raw material for processed fishery products such surimi. Surimi processing technology of freshwater fish are being developed because of the gel quality is still low. The addition ofoxidized phenolic components in surimi has been studied in several species of marine fish, however, its use in freshwater fish has never been done. The addition ofoxidized phenolic components in surimi cat fish was expected to be one alternative to improve the quality of the gel. This study aimed to determine the effect of oxidized phenolic components in this commercial tannic acid and oxidized tea extract the characteristics and water holding capacity cat fish of surimi gel. The concentration of tannic acid and oxidized teaextract were added as follows: 0%; 0.1%; 0.2%; 0.3%; 0.4% and 0.5% of the protein content. The addition ofoxidized  tannic acid and tea extract significantly affected the characteristics of the Texture Profile Analysis and Water Holding Capacity (WHC) of catfish (Clarias gariepinus) surimi gel. The addition of oxidized tannic acid and tea extract increased the value of hardness, springines, adhesive force and gumminess compared  tocontrols;however, there was nosignificant effect on the value of cohesiveness. WHC values of surimi gel increased with the concentration ofoxidized tannic acid and tea extract added. Optimum concentration of phenolic compound to enhance catfish surimi gel were 0.5 % for tannic acid and 0.4% for tea leaf extract.   Keywords : cat fish surimi, tannic acid, tea extract, texture profile analysis, WHC Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9326 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2779 2012-03-28T14:13:33Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Identification Of Mangrove Vegetation In South Segoro Anak, National Sanctuary Of Alas Purwo, Banyuwangi, East Java Supardjo, Mustofa Niti Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang  Selection of systematic sampling at South Segoro Anak areas as vast as 4 % of mangrove vast, following the direction of pilot line from Block of PAL to Block of Randu. The parameters observed is diamater of pillar/tree highly 1.3 meters, amount pillar/tree, weaned and seedling at every plots and plant type of mangrove existing in a plot. This research is made on 16 April-28 June 2006. Result of vegetation analysis with systematic sampling method at pillar level, weaned and seedling be obtained type of mangrove they are : Avicennia alba, Avicennia lanata, Avicennia marina, Avicennia officinalis, Bruguiera gymnorrhyza, Ceriops decandra, Ceriops tagal, Excoecaria agallocha, Lumnitzera racemosa, Rhizophora mucronata, Rhizophora apiculata, Schypiphora hydrophyllacea, Sonneratia alba, Sonneratia caseolaris, Xylocarpus granatum, Xylocarpus molluccennis, Heritiera littoralis. They are forms regular or uniform distribution pattern. Calculation of Morishita index at plant of mangrove in South Segoro Anak, Alas Purwo National Park of Banyuwangi-East Java can be described that is spreading pattern is regular, because value of IS which less than 1 (one). The regular or uniform spreading is reflecting the existence of negative individual interaction, like emulation to obtaining space, nutrition and sunlight.   Keywords: Identification, vegetation, mangrove, South Segoro Anak Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2779 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/52324 2025-04-15T07:54:37Z saintek:RSA

nmb a2200000Iu 4500 "240427 2024 eng " 2549-0885 1858-4748 dc Munawaroh, Siti Program Studi Magister Ilmu Pangan, Fakultas Agroindustri, Universitas Mercu Buana Yogyakarta, Jl. Wates Km.10, Yogyakarta 55753 Kanetro, Bayu Slamet, Agus Bakso bandeng merupakan fish jelly product yang disukai masyarakat. Salah satu penentu kualitas bakso adalah kekenyalan. Bahan tambahan yang biasanya ditambahkan sebagai pengenyal bakso adalah isolat protein kedelai. Namun saat ini ketersediaan kedelai masih tergantung impor sehingga dibutuhkan penggantinya. Kara pedang dan kacang tunggak berpotensi sebagai pengenyal alami bakso dan bermanfaat untuk kesehatan. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan isolat protein kara pedang dan kacang tunggak pada pembuatan bakso bandeng terhadap tingkat kesukaan, tekstur serta asam amino. Metode pembuatan bakso bandeng dengan penambahan isolat protein kedelai, isolat protein kara pedang, dan isolat protein kacang tunggak masing-masing 0%, 15%, dan 30%. Parameter yang diamati adalah tingkat  kesukaan, tekstur, dan asam amino. Bakso bandeng yang paling disukai adalah bakso dengan penambahan isolat protein kedelai 15% dan bakso dengan penambahan isolat protein kara pedang 30%. Nilai hardness, gumminess, dan uji lipat bakso bandeng dengan penambahan isolat protein kedelai 15% tidak berbeda nyata dengan basko bandeng dengan penambahan isolat protein kara pedang 30%. Profil asam amino bakso bandeng dengan penambahan isolat protein kedelai 15% menunjukkan nilai lebih tinggi dan berbeda nyata dengan bakso bandeng dengan penambahan isolat protein kara pedang 30%. Kesimpulan penelitian ini adalah isolat protein kara pedang berpotensi sebagai pengenyal alami bakso. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/52324 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/29304 2021-11-30T11:46:33Z saintek:RSA

nmb a2200000Iu 4500 "210824 2021 eng " 2549-0885 1858-4748 dc Hendrawan, Andika Luky Setiyo Keberadaan ikan introduksi berpotensi mengganggu struktur komunitas ikan asli di perairan umum daratan. Kajian risiko keberadaan ikan introduksi merupakan salah satu metode cepat untuk mendapatkan nilai kuantitatif dampak ekologisnya terhadap komunitas ikan asli. Penelitian ini bertujuan untuk mengkaji risiko keberadaan ikan introduksi di Perairan Waduk Ir. H. Djuanda. Kajian risiko dilakukan menggunakan Freshwater Fish Risk Assessment Model (FRAM) dan Evaluation Framework for Risk Assesment (EFRA) dengan sistem skoring. Analisis FRAM dilakukan terhadap 11 famili, 20 genera, dan 22 spesies ikan introduksi yang tertangkap di Waduk Ir. H. Djuanda dari periode 2007-2017. Analisis EFRA digunakan untuk menentukan upaya pengendalian ikan introduksi. Nilai risiko menetap, risiko dampak, dan risiko ekologi ikan introduksi menunjukkan terdapat tujuh spesies berpotensi invasif kategori tinggi, yaitu ikan oskar (Amphilophus citrinellus), nila (Oreochromis niloticus), mujair (Oreochromis mossambicus), oskar hitam (Mayaheros urophthalmus), golsom (Hemichromis elongatus), marinir (Parachromis managuensis), dan sapu-sapu (Pterygoplichthys pardalis). Jenis ikan introduksi yang berisiko invasif dominan berasal dari famili Cichlidae. Nilai risiko keberadaan dan risiko dampak jenis-jenis ikan introduksi di Waduk Ir. H. Djuanda menunjukkan hubungan korelasi positif (r = 0,75; P<0,01). Keberadaan ikan introduksi berdampak pada ekologi dengan resiko sedang. Hal tersebut menandakan bahwa keberadaan jenis-jenis ikan introduksi dapat menimbulkan kerugian ekologi terhadap komunitasi ikan asli di Waduk Ir. H. Djuanda sehingga perlu adanya kontrol dan pengendalian terhadap populasi ikan introduksi tersebut.   Kata Kunci: FRAM; introduksi; invasif; kajian risiko; Waduk Ir. H. Djuanda Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 https://ejournal.undip.ac.id/index.php/saintek/article/view/29304 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/69559 2025-04-15T08:15:44Z saintek:RSA

nmb a2200000Iu 4500 "241027 2024 eng " 2549-0885 1858-4748 dc STOCK RECOVERY EFFORTS OF SHORTFIN MAKO SHARK (Isurus oxyrinchus Rafinesque, 1810) LANDED AT CILACAP OCEAN FISHING PORT (PPS Cilacap) Raharjo, Budi Coastal and Marine Resources Management Center Serang (LPSPL Serang) Nugroho, Supradianto Coastal and Marine Resources Management Center Serang (LPSPL Serang) Widiarto, Santoso Budi Coastal and Marine Resources Management Center Serang (LPSPL Serang) Arifati, Atika Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Diponegoro University CITES; CMSY; Isurus oxyrinchus; Recovery stock The high exploitation rates of several shark groups in Indonesia have the potential to threaten the sustainability of their populations. The shortfin mako shark (Isurus oxyrinchus) represents one of the most significant catches of shark species in the Indian Ocean, with a considerable portion of these catches landing at the Cilacap Ocean Fishing Port. Studies on the recovery of shark stocks must be conducted to provide effective management plans that will prevent overexploitation. The objective of this study is to ascertain the exploitation status of I. oxyrinchus and to develop a simulation model for its stock recovery. The data on the total catch of shortfin mako shark (I. oxyrinchus) in the period between 2009 and 2022 in the statistical report of Cilacap Ocean Fishing Port, were subjected to analysis using the CMSY (Catch-based Maximum Sustainable Yield) method. The analysis demonstrated that the total sustainable catch (MSY) was 9.6 tons, with an exploitation rate of 2.61. The utilization rate falls within the red zone, indicating that overfishing has occurred. The simulation results from several stock recovery scenarios indicated that a reduction in fishing mortality to 5% of FMSY (fishing mortality) would be required to achieve stock recovery in approximately 10 years. The implementation of stock recovery for I. oxyrinchus by reducing fishing pressure can be achieved by setting a maximum catch limit. Therefore, the establishment of a maximum catch limit represents a crucial conservation effort for this species, as well as a form of implementation of the CITES policy in Indonesia. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-11 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/69559 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 3 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11136 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150825 2015 eng " 2549-0885 1858-4748 dc SUBSTITUSI TEPUNG BUAH MANGROVE (Bruguiera gymnorrhiza) TERHADAP SIFAT FISIKA DAN KIMIA NAGET IKAN KURISI Substitution Oriental Mangrove Flour (Bruguiera gymnorrhiza) against Physical and Chemical Characteristic of Treadfin bream Fish Nugget Dhinendra, Nabillah Pinka Almira Program Studi Teknlogi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Dewi, Eko Nurcahya Program Studi Teknlogi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Romadhon, Romadhon Program Studi Teknlogi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK   Naget ikan menggunakan bahan pengisi tepung tapioka menghasilkan naget yang keras dan nutrisi yang rendah.Substitusi tepung buah mangrove (Bruguiera gymnorrhiza) terhadap tepung tapioka pada naget ikan diharapkan dapat membantu memperbaiki mutu naget ikan. Penelitian ini bertujuan mengetahui formulasi terbaik dalam pembuatan naget ikan Kurisi dengan substitusi tepung buah mangrove dan mengetahui pengaruh substitusi tepung buah mangrove pada naget ikan terhadap sifat fisika dan kimia meliputi kekerasan, uji gigit, uji organoleptik, kadar air, protein, lemak, dan karbohidrat. Hasil penelitian menunjukkan naget ikan dengan substitusi tepung mangrove  memberikan perbedaan yang nyata (p< 0,05) terhadap seluruh parameter uji kecuali kadar air. Naget ikan Kurisi dengan substitusi tepung mangrove 50% : 50% merupakan produk yang terbaik dengan kriteria mutu: kekerasan (1105,79 g.f); uji gigit 7,13; kadar air 43,53%; protein 21,46%; karbohidrat 4,49;  dan lemak 3,35%. Produk tersebut memenuhi kriteria mutu naget ikan yang setara dengannaget ikan komersial.   Kata kunci : Tepung Mangrove, Substitusi,Naget, Ikan kurisi   ABSTRACT   Fish nugget using tapioca flour fillers produce hard and low nutrient of nugget. Substitution of Oriental Mangrove flour (Bruguiera gymnorrhiza) to tapioca flour in fish nugget expected to improve quality of nugget.The purpose of this research was to find out the best formation in the Treadfin bream fish nugget with Oriental Mangrove flour substitution and determine the effect of Oriental Mangrove floursubstitution on fish nuggets against physical and chemical characteritic include hardness, bite test, organoleptic test, moisture, protein fat, and carbohydrate content.The results showed that the fish nugget with the substitution of mangrove flour gave a significant difference (p<0,05) for all parameters except moisture content. Treadfin bream fish nugget with mangrove flour substitution 50%: 50% was the best product with quality criteria: hardness (1105.79 gf); bite test of 7.13; moisture content of 43.53%; protein content of 21.46%; carbohydrate content of 4.49; and fat content of 3.35%. The best organoleptic appearance values of 8.13; the smell of 8.07; taste of 8.33; texture of 7.2. The product found fulfills the criteria almost equivalent to a commercial fish nugget product.  Keywords : Mangrove flour, Substitution, Nugget, Treadfin bream Fish Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11136 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/52728 2025-04-15T07:39:12Z saintek:RSA

nmb a2200000Iu 4500 "230831 2023 eng " 2549-0885 1858-4748 dc Susanto,, Adi Department of Fisheries, University of Sultan Ageng Tirtayasa https://scholar.google.co.id/citations?user=jrfuH54AAAAJ&hl=id Kartiwa, Teddi Irnawati, Ririn Nurdin, Hery Sutrawan Hamzah, Asep Supadminingsih, Fahresa Nugraheni Syafrie, Hendrawan Azkia, Lana Izzul Pengoperasian pukat cincin di Selat Sunda menggunakan alat bantu lampu jenis metal halide untuk menarik ikan target agar berkumpul di catchable area. Adanya asumsi bahwa semakin terang lampu yang digunakan dapat meningkatkan hasil tangkap mendorong nelayan menggunakan lampu dalam jumlah banyak dan daya yang besar. Padahal setiap jenis ikan memiliki preferensi dan kemampuan adaptasi yang terbatas terhadap cahaya yang diterimanya. Penelitian ini bertujuan untuk menentukan tingkat adaptasi mata ikan tongkol (Euthynnus affinis) yang ditangkap oleh pukat cincin di Selat Sunda berdasarkan jumlah lampu yang berbeda. Pengumpulan data dilakukan pada bulan Mei hingga Juli 2021 dengan mengikuti operasi penangkapan ikan yang dilakukan oleh kapal pukat cincin dengan dua kapal lampu yang berbeda (kapal yang dilengkapi 8 lampu dan kapal yang dilengkapi dengan 6 lampu). Intensitas cahaya lampu pada medium air diukur menggunakan ILT 5000 research radiometer. Pengambilan sampel mata ikan tongkol dilakukan masing-masing sebanyak 3 ekor pada setiap trip yang selanjutnya diproses dengan metode histologi. Hasil penelitian menunjukkan intensitas cahaya pada kapal yang menggunakan 8 lampu lebih tinggi dibandingkan dengan kapal yang menggunakan 6 lampu. Namun demikian, pada kedalaman > 10 m, intensitas cahaya yang dihasilkan oleh kedua kapal tersebut relatif sama. Nilai indeks kon ikan tongkol hasil tangkapan kapal dengan 6 lampu rata-rata 90,76% sedangkan pada kapal dengan 8 lampu sebesar 91,50%.   The purse seines fishing operation in the Sunda Strait uses metal halide lamps to attract target fish to congregate in catchable areas. There is an assumption that brighter lights can increase the catch, encouraging fishermen to use lights in large quantities and with high power. Even though each type of fish has preferences and limited adaptability to the light it receives. This study aims to determine the level of adaptation of the tuna (Euthynnus affinis) caught by purse seines based on the number of different lights. Data collection was conducted from May to July 2021 through experimental fishing on a purse seiner fishing vessel with two different numbers of lamps, including 6 lamps and 8 lamps for each boat respectively. The light intensity in the seawater was measured using an ILT 5000 research radiometer. A sampling of the eye of the tuna was carried out by 3 individuals on each trip which were then processed using histological methods. The results showed the light intensity on the boat using 8 lights was higher compared to boat using 6 lights. However, at depths > 10 m, the light intensity produced by both was similar. The average cone value of Mackarel tuna captured on the boat with 6 lights is 90.76%, while for a boat with 8 lights, it is 91.50%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-08-31 14:43:36 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/52728 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 2 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/39737 2021-12-10T03:07:29Z saintek:RSA

nmb a2200000Iu 4500 "211025 2021 eng " 2549-0885 1858-4748 dc DIETARY LYSINE REQUIREMENT OF JAVA BARB (Puntius javanicus BLEEKER, 1855) FINGERLINGS TO OPTIMIZE FEED EFFICIENCY, GROWTH, AND NUTRIENT CONTENTS Rachmawati, Diana Department of Aquaculture Faculty of Fisheries and Marine Science Universitas Diponegoro Samidjan, Istiyanto Department of Aquaculture Faculty of Fisheries and Marine Science Universitas Diponegoro Elfitasari, Tita Department of Aquaculture Faculty of Fisheries and Marine Science Universitas Diponegoro Amalia, Rosa Department of Aquaculture Faculty of Fisheries and Marine Science Universitas Diponegoro Nurhayati, Dewi Department of Aquaculture Faculty of Fisheries and Marine Science Universitas Diponegoro Puntius javanicus; lysine; growth; efficiency; diet The slow growth of the Java barb (Puntius javanicus Bleeker, 1855) fingerlings is due to the feeding of plant-based protein which is usually lack of lysine.  The lack of it, can hinder the feed efficiency and growth. The best way to solve the problem is by adding lysine in the diet. The objectives of the study were to determine optimal needs of lysine to increase feed efficiency, growth, and nutrient contents of Java barb.  The fish samples were fingerlings of Java barb which weighed from 3.26 to 3.78 g-1 fish. The feed comprised 30% isoprotein and 262 Kcal isoenergy supplemented with lysine amino acid.  The dosages of the lysine in the diet were 1.25% (A1), 1.5% (A2), 1.75% (A3), 2.0% (A4), 2.25% (A5), and 2.5% (A6) of dried diets. The parameters observed were relative growth rate (RGR), apparent digestibility coefficients of protein (ADCp), efficiency of feed usage (EFU), feed conversion ratio (FCR), protein efficiency ratio (PER), survival rate (SR), hepatosomalic index (HSI), viscerosomatic index (VSI) and nutrient contents of Java barb. The results of the study disclosed that the enrichment of lysine into the diet increased the feed utilization, the growth and the nutrient contents of Java barb.  The needs of lysine for Java Barb (Puntius javanicus) fingerlings to optimize feed efficiency, growth, and nutrition contents ranged from 1.58% to-1.70% dried diet (5.3 to 5.6 % of protein diet). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/39737 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/66978 2025-04-25T14:22:56Z saintek:RSA

nmb a2200000Iu 4500 "250416 2025 eng " 2549-0885 1858-4748 dc BIOMONITORING OF MACROINVERTEBRATE DIVERSITY AS AN INDICATOR OF POLLUTION IN DEKET RIVERS LAMONGAN REGENCY Saad, Moch Department of Marine Science, Faculty of Agriculture, Universitas Sultan Ageng Tirtayasa, Jl. Raya Palka Km 3 Sindangsari, Serang Regency Shaleh, Fuquh Rahmat Department of Aquatic Resources Management, Faculty of Fisheries and Animal Husbandry, Universitas Islam Lamongan, Jl. Veteran, No. 53 A, Lamongan Regency Mas'ud, Faisol Department of Aquatic Resources Management, Faculty of Fisheries and Animal Husbandry, Universitas Islam Lamongan, Jl. Veteran, No. 53 A, Lamongan Regency Macroinvertebrates, Pollution, Family Biotic Index (FBI), Deket River Macroinvertebrates are aquatic organisms that live at the bottom of the water, have relatively slow movements, and have a relatively long life span so that they can respond to river water conditions, changes in water quality, and the substrate in which they live significantly affecting their composition and abundance. This research aims to determine the diversity value, macroinvertebrate dominance, and the river water quality based on the Family Biotic Index (FBI) in the Deket River, located in the Lamongan Regency. The sampling method used a purposive sampling method, sampling was carried out at 3 stations and 4 replications, macroinvertebrates were taken using an Ekman grab tool, and river water quality values were measured using the family biotic index (FBI). Based on the research results, there is a moderate pollution level in the Deket River, as shown by the results of the FBI value with the water quality category being rather poor, with a high pollution level with a large population. The diversity index value for macroinvertebrates in the Deket River is between 1.27 and 1.57, included in the medium category. Meanwhile, the macroinvertebrate dominance index value in the Deket River is relatively poor. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-04-16 03:41:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/66978 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 1 (2025): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13186 2020-04-17T19:24:01Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc AKTIVITAS SENYAWA BIOAKTIF SELADA LAUT (Ulva lactuca) SEBAGAI ANTIOKSIDAN PADA MINYAK IKAN The Activity of Bioactive Compounds from Sea Lettuce (Ulva lactuca) as Antioxidant in Fish Oil Arbi, Basyrowi Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ma’ruf, Widodo Farid Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Romadhon, Romadhon Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ekstrak U. lactuca; Oksidasi; Minyak Ikan; Antioksidan   Minyak ikan adalah produk perikanan yang mempunyai asam lemak tak jenuh tinggi yang rentan akan oksidasi. Penghambatan oksidasi dilakukan dengan penambahan antioksidan pada minyak. Penggunaan bahan alami sebagai antioksidan dari U. lactuca mampu menghambat oksidasi tersebut. Tujuan penelitian ini adalah untuk mengetahui efektifitas antioksidan selada laut (U. lactuca) dalam menghambat oksidasi.  Materi yang digunakan dalam penelitian ini adalah ekstrak U. lactuca, dan minyak ikan. Metode penelitian yang digunakan adalah experimental laboratories dengan menggunakan Rancangan Acak Lengkap (RAL) faktorial yaitu faktor konsentrasi ekstrak U. lactuca (0%; 0,1%; 0,2% dan 0,3%) dan faktor lama penyimpanan (hari ke-0, hari ke-5 dan hari ke-10). Data peroxide value (PV) dan thiobarbituric acid (TBA) dianalisis menggunakan uji ANOVA, dilakukan uji lanjut Beda Nyata Jujur (BNJ), jika ada interaksi perlakuan. Hasil penelitian pendahuluan didapatkan rendemen ekstrak U. lactuca dengan pelarut etanol 96% sebesar 13,549%, nilai fenol 4,59%, flavonoid 0,59% dan aktivitas antioksidan IC50 sebesar 60,975 ppm (kuat). Hasil uji asam lemak pada minyak ikan dengan GC-MS menunjukkan kandungan asam lemak yang paling banyak adalah asam lemak tak jenuh (asam linoleat (omega -6) dan (omega-3)). Hasil penelitian utama didapatkan nilai PV berkisar antara 20,141 sampai 38,196 mEq/kg, dan nilai TBA berkisar antara 10,794 sampai 32,592 mg malonaldehid/kg pada hari ke-0. Berdasarkan hasil penelitian menunjukkan bahwa adanya interaksi antara konsentrasi ekstrak U. lactuca dan lama penyimpanan berpengaruh nyata (P<0,05).  Ekstrak U. lactuca 0,2% menghasilkan angka peroksida  terendah  yaitu 25,606±0,116 mEq/kg, dan  0,1% menghasilkan angka TBA terendah yaitu 26,802  ±0,309 malonaldehide/kg pada hari ke-10.   Fish oil is a fishery product that contains  high amount of unsaturated fatty acids, which was easily  oxidated. This oxidation process can be inhibited by adding antioxidants. The use of natural antioxidants from U. lactuca known  can inhibits the oxidation. The aim of this research was  examinated the effectiveness of antioxidants from sea lettuce (U. lactuca) in inhibiting oxidation. Materials used in this research were U. lactuca extract, and fish oil. The methods used are experimental laboratories, and analyzed using Completely Randomized Design (CRD) factorial pattern is divided by a factor of U. lactuca extract concentrations (0%, 0.1%, 0.2% and 0.3%) and factor storage time (days 0, day 5 and day 10). The peroxide value (PV) and thiobarbituric acid (TBA) were analyzed using ANOVA test, then further carried test Honestly Significant Difference (HSD), a treatment interaction. Preliminary results obtained were the yield of U. lactuca extract with 96% ethanol was 13.549%, the phenol content  was 4.59%, flavonoids was 0.59%, and the antioxidant activity of IC50 was 60.975 ppm (strong). The results analyzing of fatty acids in fish oil by GC-MS showed that the fatty acid content is at most unsaturated fatty acids. The main research results were PV values obtained were range from 20.141 to 38.196 mEq/kg, and TBA values were ranged from 10.794 to 32.592 mg/kg. Based on the research results show that the interaction between U. lactuca extract concentration and storage time significantly (P<0,05) . The result of 0,2% U. lactuca exctract  contain peroxide value 25,606±0,116 mEq/kg, and  0,1 % exctract containt TBA value 26,802±0,309 malonaldehide/kg  in  the tenth day.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13186 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21383 2020-04-17T19:29:10Z saintek:RSA

nmb a2200000Iu 4500 "180817 2018 eng " 2549-0885 1858-4748 dc ANALISIS KELIMPAHAN TOTAL BAKTERI COLIFORM DI PERAIRAN MUARA SUNGAI SAYUNG, MOROSARI, DEMAK (Analysis of Total Abundance of Coliform Bacteria at the Sayung River Estuary, Morosari, Demak) Safitri, Lani Febriana Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Widyorini, Niniek Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jati, Oktavianto Eko Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Bakteri Coliform; Bahan Organik Terlarut; Oksigen Terlarut; Perairan Morosari Perairan Muara Sungai Sayung terletak di wilayah Kabupaten Demak sebelah barat. Perairan ini telah dipengaruhi oleh berbagai aktivitas manusia yang menyebabkan terjadinya penurunan kualitas perairan. Bakteri Coliform merupakan bakteri gram negatif yang berbentuk batang dan tidak membentuk spora. Bakteri ini merupakan bakteri indikator terjadinya pencemaran perairan maupun indikator keberadaan bakteri patogen lainnya. Perhitungan total bakteri Coliform perlu dilakukan untuk mengetahui adanya pencemaran limbah organik yang terjadi di Perairan Muara Sungai Sayung, Morosari, Demak. Tujuan dari penelitian ini adalah untuk mengetahui kelimpahan total bakteri Coliform, dan status perairan di Perairan Muara Sungai Sayung, Morosari, Demak. Penelitian ini juga bertujuan untuk mengetahui hubungan dari jumlah total bakteri Coliform dengan bahan organik terlarut dan oksigen terlarut (DO). Pelaksanaan penelitian ini dilakukan pada bulan Mei 2018. Metode yang digunakan dalam penelitian ini adalah metode survei dan teknik pengambilan sampel menggunakan metode random sampling yang dilakukan pada lima stasiun. Hasil penelitian menunjukkan bahwa kelimpahan rata-rata total bakteri Coliform yang diperoleh berkisar antara 4 x 103 – 550 x 10 3/100ml. Kelimpahan rata-rata total bakteri Coliform yang diperoleh pada setiap stasiun menunjukkan bahwa kandungan total bakteri Coliform telah melebihi baku mutu air menurut Keputusan Menteri Lingkungan Hidup Nomor 51 Tahun 2004. Keberadaan total bakteri Coliform memiliki hubungan yang lemah dengan kandungan bahan organik terlarut, sedangkan keberadaan total bakteri Coliform memiliki hubungan yang cukup dengan oksigen terlarut (DO) di perairan Muara Sungai Sayung Morosari, Demak.   Sayung River Estuary is located in the western part of Demak Regency. This estuary has been affected by various human activities which have led to a decline in water quality. Coliform bacteria are a gram-negative bacteria that are rod-shaped and do not form spores. This bacterium is an indicator bacteria of water pollution and an indicator of the presence of other pathogenic bacteria. Total Coliform bacteria calculation needs to be carrid out to find out if there any contamination of organic waste in Sayung River Estuary, Morosari, Demak.. The purpose of this research was to determine total abundance of Coliform bacteria, water quality in Sayung River Estuary, Morosari, Demak and relationship between the total abundance of Coliform bacteria with dissolved organic matter and dissolved oxygen (DO). This research was carried out in May 2018. The method that used in this research were survey method and the sampling technique was random sampling method in five stations. The results showed that the average abundance of total Coliform bacteria obtained ranged between 4 x 103 - 550 x 103 / 100ml. Average abundance of total Coliform bacteria obtained at each station shows that the total content of Coliform bacteria has exceeded the water quality standard according to Minister of Environment Decree number 51 of 2004. The total presence of Coliform bacteria has a weak relationship with the content of dissolved organic matter, while the total number of Coliform bacteria have sufficient relationship with dissolved oxygen (DO) in the Sayung River Estuary,Morosari, Demak. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21383 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6803 2014-05-02T12:06:31Z saintek:RSA

nmb a2200000Iu 4500 "080222 2008 eng " 2549-0885 1858-4748 dc Analysis Comparison Advantage of Effort Docking of System Slipway and Docking Lift in Ocean Fishery Port of Nizam Zachman of Jakarta Boesono, Herry Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Uniersitas Diponegoro Hidayati, Rahmi Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Uniersitas Diponegoro Ocean Fishery Port of Nizam Zachman Jakarta (PPSNZJ) divided into two dock ship, there are dock slipway   (governmental property) and dock lift (private sector property). Aim of research is to know technical aspect and finansial aspect and elegibility of effort, to compare economic efficiency and the efficiency seen from earnings and expense and also to know analysis of effort by using statistika test between dock slipway and dock lift. Research used with deskriptif method with items research is technical aspect and finansial aspect of effort dock slipway and dock lift during november till december 2005 with observation method, interview and kuisioner. Result of research concluded that dock slipway use winch to draw ship from sea while dock lift use big krane to lift ship from sea to dock space, considering of finansial  aspect  that  is  two  dock  consider  with  estimate  10  year  forwards  that  laboured.  Analyse efficiency of effort that earning power of dock slipway bigger than dock lift. While efficiency base on earnings and expense, dock slipway is equal to 287,86 % and dock lift is equal to 355 %. Pursuant to statistical test mann-whitney that earnings, expense and advantage per month year 2005 that two dock is no real difference.   Keywords : PPSNZJ, technical aspect, aspect of finansial, elegibility of effort Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6803 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/15282 2020-04-17T19:25:19Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc ANALISIS MUTU SEDIMEN HABITAT KERANG DARAH (Anadara granosa L) DENGAN REBURIAL TEST (Sediment Quality Analysis for Habitat of Blood Cockle (Anadara granosa L) by Reburial Test) Haeruddin, Haeruddin Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suprapto, Djoko Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rudiyanti, Siti Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Habitat; kerang darah; reburial   Penelitian dilakukan untuk mengkaji mutu sedimen habitat kerang darah (Anadara granosa L) berdasarkan preferensi reburial. Uji dilakukan terhadap sedimen yang berasal dari Estuari Wakak-Plumbon di Kabupaten Kendal dan sedimen dari Pulau Panjang, Kabupaten Jepara, Jawa Tengah.Hasil pengujian menunjukkan bahwa kerang darah yang dipapar dalam sedimen dari estuari Wakak-Plumbon dan Pulau Panjang tidak menunjukkan kegagalan dalam upaya membenamkan diri (reburial failured) setelah dipapar selama 48 jam. Perbedaan hanya terjadi dalam waktu adaptasi sebelum membenamkan diri. Kerang darah umumnya membutuhkan waktu yang lebih lama untuk adaptasi sebelum membenamkan diri pada sedimen yang berasal dari Estuari Wakak-Plumbon dibanding dari Pulau Panjang.   This research conducted to determine quality of sediment for habitat of blood cockle based on reburial reference. Test done to sediment from Wakak-Plumbon estuary on Kabupaten Kendal and from Panjang Island, Kabupaten Jepara, Central Java. The results showed that blood cockle exposed to sediment from two location are not different in reburial failured, but different in time needed for adaptation before reburial. Anadara granosa needed more time to adapted, before reburial in Wakak-Plumbon sediment.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15282 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22069 2020-04-17T19:30:28Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc PENGARUH PERBEDAAN METODE PENCAIRAN (THAWING) TERHADAP KUALITAS KIMIA DAGING ABALON (Haliotis asinina) BEKU (Effect of Different Thawing Methods on Chemical Quality of Frozen Abalone (Haliotis asinina)) Sari, Sri Fatmah Program Studi Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Muhammadiyah Kendari Abalon (Haliotis asinina); Kualitas Kimia; Pembekuan; Pencairan. Penelitian ini bertujuan untuk mengetahui kualitas kimia daging abalon beku H. asinina yang dicairkan dengan beberapa metode.  Penelitian ini menggunakan rancangan acak lengkap, dimana terdapat tiga perlakuan yaitu pencairan dengan melakukan perendaman pada air es (4oC), pencairan dengan melakukan perendaman pada air biasa (28oC), dan pencairan dengan menempatkan pada suhu ruang (30oC). Sebelum dilakukan pencairan sampel yang digunakan dibekukan pada suhu -20oC selama 3x24 jam. Parameter yang dianalisa antara lain, kadar protein, kadar lemak, kadar protein terlarut, kadar air, dan kadar TMA-N. Dari hasil penelitian ini diperoleh perlakuan pencairan dengan melakukan perendaman pada air biasa (28oC) memberikan kualitas kimia yang lebih baik dengan kadar protein 14,08%, lemak 5,43%, protein terlarut 4,09%, kadar TMA-N 6,71 mg/100 g, dan kadar air 78,40%.   This research was conducted to investigate the chemical quality of frozen abalone (H. asinina) which thawed using different thawing methods.  A completely randomized experimental design (CRD) was used. It consisted of three treatments of thawing (A; immersion in cool water (4oC), B; immersion in water at ambient temperature (28oC), C; placement at room temperature (30oC)) and done in triplicates. The samples were frozen at a temperature of -20oC for 3x24 hours and they were packaged by air packaging method. The content of protein, fat, soluble protein, water,  and TMA-N were analyzed. The results showed that thawing by immersion in water at ambient temperature (28oC) gave the best chemical quality compared to two others thawing methods in this research. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22069 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6820 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc The Effect of Naupli Artemia Feeding Which is Enriched by Squalene In Different Dose on The Growth and Survival Rate of Juvenile Sea Horse Santoso, Limin Program Studi Budidaya Perairan Fakultas Pertanian Universitas Lampung A feeding experiment was conducted to determine the optimal dose of growth and survival rate for sea horse(Hippocampus kuda) juveniles (initial average weight 0.074 g, initial average body length 18 mm and old 16 days). Completely randomized design with five treatments and three replications were use: A (naupli artemia), B (naupli artemia + squalene 0,3 g/L), C (naupli artemia + squalene 0,6 g/L), D (naupli artemia + squalene 0,9 g/L), E (naupli artemia + squalene 1,2 g/L). The results showed that the growth and survival rate of the juvenile sea horse content increased. There was significant differences (P<0.01) in  survival  rate  (SR),  growth  of  body  weight  (AW),  and  growth  of  body  length  (AL).  Based  on  the evaluation of the some parameters; SR (69, 97%), AW (0,320 g) and AL (2,67cm), SGR (5, 43%/day). It can be concluded that treatment D (naupli artemia + squalene 0,9 g/L) is optimal for growth and survival rate for sea horse juveniles.   Key words : sea horse juvenile, different dose, enriched by squalene Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6820 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/44128 2022-10-20T14:06:42Z saintek:RSA

nmb a2200000Iu 4500 "220830 2022 eng " 2549-0885 1858-4748 dc Yonarta, Danang Universitas Sriwijaya Syaifudin, Mochamad Taqwa, Ferdinand Hukama Tanbiyaskur, Tanbiyaskur Artha, muhammad Fery Krioprotektan merupakan salah satu bahan yang berperan dalam penyelamatan bahan biologis pada kriopreservasi. Dimetil sulfoksida (DMSO) sebagai krioprotektan memiliki kemampuan cepat untuk penetrasi ke dalam sel pada saat equilibrasi (penurunan suhu) dan meninggalkan sel pada saat thawing (pencairan kembali). Penelitian ini bertujuan untuk mengetahui penggunaan dosis terbaik dari larutan krioprotektan yang menggunakan DSMO dalam ekstender madu terhadap karakteristik dari sel spermatozoa ikan belida pada proses kriopreservasi.  Penelitian ini dilakukan di Laboratorium Balai Pembibitan dan Hijauan Pakan Ternak (BPHPT) Sembawa pada bulan Maret sampai dengan November 2020. Ikan uji didapat dari hasil tangkapan dari alam, selanjutnya dilakukan pemeliharan selama 4 bulan untuk mendapatkan tingkat kematangan gonad yang maksimal. Pengambilan sel sperma dilakukan secara stripping, proses stripping dilakukan dengan mengurut bagian perut ikan secara memutar. Hasil penelitian menunjukkan bahwa lama waktu penyimpanan selama 28 hari pada P3 memberikan hasil terbaik terhadap motilitas (skor 3), nilai viabilitas sebesar 48,93%, lebih tingi dari Kontrol, P1 dan P2. Selain itu, pada perlakuan tersebut tidak ditemukan adanya abnormalitas yang terjadi pada sperma ikan belida.   Cryoprotectant plays a role in saving biological material during cryopreservation. Dimethyl sulfoxide (DMSO) as a cryoprotectant has the ability to quickly penetrate into the cell at equilibration and leave the cell at thawing procedure. This study aims to determine the best dose of DSMO in honey extender to the characteristics of the featherback Fish spermatozoa cells in the cryopreservation process. This research was conducted at the Laboratory of Balai Pembibitan dan Hijauan Pakan Ternak (BPHPT) Sembawa from March to November 2020. The test fish were obtained from catches from nature, then reared for 4 months to get the maximum level of gonad maturity. Sperm cell retrieval is carried out by stripping, the stripping process is carried out by massaging the belly of the fish in a circular manner. The results showed that at storage time of 28 days, P3 gave the best results on motility (score 3), and the viability value was 48,93%, higher than Control, P1 and P2. In addition, the treatment did not show any abnormalities that occurred in the featherback fish sperm. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/44128 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/44128/136782 Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/75772 2025-10-04T00:16:32Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc THE EFFECT OF SEAWEED FLOUR (Gracilaria verrucosa) SUBSTITUTION ON THE QUALITY CHARACTERISTICS AND FIBER CONTENT OF BISCUITS Cahya, Ira Cindy Dwi Department of Fisheries Product Technology, Faculty of Fisheries and Marine Sciences, Diponegoro University Agustini, Tri Winarni Department of Fisheries Product Technology, Faculty of Fisheries and Marine Sciences, Diponegoro University https://orcid.org/0009-0001-6097-4582 Anggo, Apri Dwi Department of Fisheries Product Technology, Faculty of Fisheries and Marine Sciences, Diponegoro University Biscuits; Gracilaria verrucosa; Crispyness; Dietary Fiber; Substitution Biscuits with specific treatments can become functional foods made from wheat flour and are often consumed as snacks. Biscuits usually contain high carbohydrates and fats, but low protein and fiber. G. verrucosa is a red algae rich in dietary fiber (53.57%). Adding G. verrucosa flour to biscuits can increase the natural fiber content, and be an alternative nutritious and affordable product. This study aims to determine the effect of seaweed flour substitution as a reference for high-fiber biscuits, quality characteristics and nutritional content, and the best concentration based on sensory tests. The research method for this biscuit was carried out experimentally in the Laboratory using a completely randomized design (CRD) consisting of 4 treatments and 3 replications of RL (0%), RL (2%), RL (4%) and RL (6%). Research parameters observed include : protein content, fat content, moisture content, ash content, food fibre, texture, color test and sensory analysis. Data analysis were carried out using SPSS 16 software. Parametric data were analyzed using ANOVA, Duncan and Independent Sample T-test (food fibre, while non-parametric data were analyzed using Kruskall-Wallis and Mann-Whitney tests. The results of the study showed that the higher the concentration of G. verrucosa flour substituted into biscuits, the more it would increase the nutritional content, such as protein, fat, moisture, ash, fiber and texture that met the requirements of SNI 2973:2022. In addition, it reduces the carbohydrate value and sensory characteristics such as a darker color and distinctive odor. The best results were the RL (4%) treatment with dietary fiber (3.52%), protein (8.58%), water (3.54%), fat (22.34%), ash (1.71%), carbohydrates (63.84%), crispness (629.42 gf - more cryspy), and color with L* values 53.28, a* (-10.35), b* 19.21, and panelist sensory had a 95% confidence interval of 7.83 <µ <8.26. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/75772 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16824 2020-04-17T19:27:11Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc BEBERAPA ASPEK BIOLOGI UDANG PUTIH (Penaeus indicus) DI PERAIRAN SEBELAH UTARA BREBES DAN TEGAL, JAWA TENGAH (Biological Aspects of White Shrimp (Penaeus Indicus) In the North Brebes and Tegal Waters, Central Java) Wahyuni, Iin Ika Program Studi Manajemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Solichin, Anhar Program Studi Manajemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Saputra, Suradi Wijaya Program Studi Manajemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Penaeus indicus; Aspek Biologi; Perairan Sebelah Utara Brebes dan Tegal   Salah satu potensi perikanan di perairan Brebes dan Tegal adalah Udang Putih yang terancam kelestariannya akibat meningkatnya penangkapan dengan Jaring Arad. Tujuan penelitian ini untuk mengetahui aspek biologi udang P. indicus dan status sumberdayanya, seperti komposisi hasil tangkapan, struktur ukuran, sifat pertumbuhan, dan aspek reproduksi. Metode penelitian yang digunakan yaitu metode survei. Sampel udang diambil 100% dari total hasil tangkapan tiap perahu karena hasil tangkapan kurang dari 100 ekor. Pengambilan sampel enam kali dari Juli-Desember 2016. Tempat pengambilan sampel di TPI Kluwut, Kaliwlingi, Larangan dan Surodadi. Hasil penelitian nilai L50%P. indicus di sebelah utara Brebes dan Tegal memiliki panjang total 84 mm dan 85 mm, nilai ½ L∞ yaitu 97 mm (jantan) dan 121 mm (betina). L50% < ½ L∞ berarti ukuran udang yang tertangkap masih kecil sehingga dikhawatirkan terjadinya growth overfishing. Sifat pertumbuhan udang jantan dan betina di Brebes yaitu isometrik (b=2,98) dan alometrik negatif (b=2,86), di Tegal yaitu alometrik positif (b= 3,43) dan isometrik (b= 3,02). Nilai faktor kondisi P. indicus di Brebes 1,63 (jantan) dan 1,59 (betina), sedangkan di Tegal 1,81 (jantan) dan 1,57 (betina). Perbandingan nisbah kelamin P. indicus di Brebes 1: 4,4 dan di Tegal 1: 2,9. Status tingkat pemanfaatan sumberdaya udang P. indicus di sebelah utara Brebes dan Tegal perlu penyempurnaan untuk memenuhi syarat perikanan yang berkelanjutan.   One of the potential fishery in the Brebes and Tegal waters is P. Indicus shrimp that has been threatened by increasing fishing effort of Arad net. The purpose of this research to know biological aspects of P. indicus and resources status, such as composition of catch, size of structure, growth, and reproduction aspects. The method used is survey method. Shrimp samples were taken at random 10% of the total catch per boat. Sampling six times from July to December 2016. The sampling at TPI Kluwut, TPI Kaliwlingi, TPI Larangan and TPI Surodadi. The results of research L50% value of P. indicus in north Brebes and Tegal has 84 mm and 85 mm TL, ½ L∞ are 97 mm (males) and 121 mm (females). L50% <½ L∞ mean size of shrimp caught are ssmall to worry about the occurrence of growth overfishing. The growth of males and females shrimp in Brebes are isometric (b = 2.98) and negative allometric (b = 2.86), in Tegal growth of males and females are positive allometrik (b = 3.43) and isometric (b = 3.02). Condition factor P. indicus in Brebes are 1.63 (males) and 1.59 (females), whereas in Tegal are 1.81 (males) and 1.57 (females). Sex ratio P. indicus in Brebes 1: 4.4 and in Tegal 1: 2.9. Status of the level of resource P. indicus need improvement to qualify sustainable fisheries.    Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16824 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/24140 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190828 2019 eng " 2549-0885 1858-4748 dc KOMUNITAS MIKROALGA PERIFITON PADA SUBSTRAT BERBEDA DAN PERANNYA SEBAGAI BIONDIKATOR PERAIRAN (Microalga Peryphyton Community on Different Substrates and Its Role as Aquatic Environmental Bioindicator) Arsad, Sulastri Universitas Brawijaya http://fpik.ub.ac.id http://orcid.org/0000-0002-7322-7834 Zsalzsabil, Nur ALiya Universitas Brawijaya Prasetiya, Fiddy Semba Universitas Padjadjaran Safitri, Ikha Universitas Tanjungpura Saputra, Dhira Kurniawan Universitas Brawijaya Musa, Muhammad Universitas Brawijaya Bioindikator; mikroalga; perifiton; substrat Mikroalga merupakan salah satu komponen penyusun perifiton yang hidupnya melekat pada substrat, baik substrat alami maupun substrat buatan. Perifiton memiliki peran salah satunya sebagai bioindikator. Penelitian ini bertujuan untuk menganalisis komunitas mikroalga perifiton pada substrat berbeda yaitu substrat alami (batu) dan substrat buatan (kaca objek glass) serta untuk menganalisis status mutu perairan berdasarkan pendekatan perifiton. Lokasi penelitian yaitu perairan Ranu Pakis Lumajang dengan 3 stasiun pengambilan sampel secara purposive sampling. Metode penelitian adalah survei dan dilakukan pada musim barat tahun 2019 dengan waktu pengambilan sampel setiap dua minggu sekali selama enam minggu. Parameter yang dianalisis meliputi identifikasi mikroalga perifiton, penghitungan kelimpahan, indeks biologi, dan pengukuran kualitas air. Data yang diperoleh dianalisis secara statistik menggunakan one way ANOVA dan regresi linear berganda menggunakan Ms. Excel dan SPSS 23.0. Hasil penelitian menunjukkan bahwa mikroalga perifiton yang ditemukan berasal dari empat divisi yaitu Chrysophyta (47%), Chlorophyta (27%), Cyanophyta (26%), dan Pyrrophyta (0,2%). Secara keseluruhan kelimpahan yang diperoleh berkisar antara 5.567-34.841 sel/cm2 (substrat alami) dan 14.367-42.563 sel/cm2 (substrat buatan). Indeks keanekaragaman di perairan Ranu Pakis tergolong tinggi sehingga perairan tergolong bersih (stabil), kecuali pada stasiun 3 tergolong tercemar ringan (kurang stabil). Akan tetapi, tidak ada dominansi pada seluruh stasiun tersebut. Hasil pengukuran parameter kualitas air menunjukkan bahwa secara umum nilai kualitas air masih berada di bawah ambang baku mutu yang ditetapkan oleh pemerintah PP No.82 Tahun 2001 untuk kegiatan perikanan kelas III. Komponen kualitas air seperti karbondioksida, kecerahan, nitrat, orthofosfat, dan suhu secara simultan berpengaruh terhadap kelimpahan mikroalga sebesar 39,7%. Periphyton microalgae  live by attaching to the substrate, both natural and artificial substrate. Perifiton plays role as an aquatic environment bioindicator. This study aimed to analyze periphyton microalgae community in different substrate, natural substrate (stone) and artificial substrate (objeck glass). Furthermore, the microalgae periphyton are used to analyze the environmental status quality. Survey method was used and sampling location is in three site of the Ranu Pakis environment by purposive sampling. Research was carried out in 2019 every two week during six weeks on west season. Identification of periphyton microalgae, density counting, biological indexes, and water quality measurements was taken during the research. All data was analyzed statistically by using one way ANOVA and multiple linear regression by using Ms. Excel and SPSS 23.0. The results depict periphyton microalgae consists of Chrysophyta (47%), Chlorophyta (27%), Cyanophyta (26%), and Pyrrophyta (0,2%). The density of microalgae periphyton was ranging from 5.567 to 34.841 sel.cm-2 (natural substrate) and 14.367 to 42.563 sel.cm-2 (artificial substrate). Biological index indicates that Ranu Pakis environment was belonging to stable (unpolluted) in site 1 and 2, while 3 was belonging to less stable (less polluted). However, there was no domination in all sites. Water quality values provide information that in general it still under of quality standards determined by PP No. 82 year 2001 for fisheries activites class III. Water quality components  including carbondioxide, transparency, nitrate, orthophosphate, and temperature simultantly influence the microalgae density of 39,7%.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24140 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6844 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Program Performance Analysis of Pekalongan.Nusantara Fishing Port Wijayanto, Much Arif Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Suherman, Agus Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Kohar M., Abdul Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro The objective of this research is to find out the work program and performance percentage level of the Nusantara Fishery Harbor (NFH) of Pekalongan, using the Balanced Scorecard (BSC) analysis. The research method used in this research is the descriptive method and it is a case study research. The primary data are collected from interviews-, meanwhile, the secondary data are collected from the related services and literature study presented in the institutions having the connections to the observed objects. Data analysis uses the Balanced Scorecard (BSC) analysis. The research results show that the work program executed by the NFH of Pekalongan is almost the same in every year from 2007 to 2009, as many as 8 (eight) activities. Among them are, salary, allowance and wage management, responsible and continuous fish resource utilization program, office operation management, program development and financial administration program. fishery business development and management program, data development and fishery statistical program, fishery facility and infrastructure improvement and development program, and organization of revitalization program. Meanwhile, for performance level, the Nusantara Fishery Harbor of Pekalongan is excellent. This can be seen from the DOCS average value as much as 99.33%, in which, the 2007 DOCS value was 98.22% with the gap value of -1.75%, the 2008 DOCS value was 99.93% with the gap value of 0.07% and the 2009 DOCS value was 100% with the gap value of 0%. Key Words: Fishery Harbor, Performance Percentage Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6844 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/21483 2019-02-15T09:54:05Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/79273 2026-02-05T07:11:14Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Halim, Atika Marisa Politeknik Kelautan dan Perikanan Sidoarjo. Jl. Raya Buncitan Kp.1 Sedati, Sidoarjo, Jawa Timur, Indonesia, 61253. https://orcid.org/0000-0003-4649-7115 Rizky, Putri Nurhanida Primasari, Kartika Cahyanurani, Annisa’ Bias Aonullah, Asep Akmal Harijono, Teguh Nasuki, Nasuki Sasmita, Ahmad Aditya Pencemaran logam berat, khususnya timbal (Pb), pada sumber air asin untuk budidaya air payau dapat menurunkan kualitas media dan mengancam keberlangsungan organisme budidaya. Metode penanganan berbasis fisik dan kimia sering kurang efisien serta berpotensi menimbulkan dampak lanjutan, sehingga diperlukan alternatif yang lebih ramah lingkungan. Mikroorganisme indigenous menjadi salah satu opsi bioremediasi yang menjanjikan karena mampu beradaptasi dengan kondisi lokal dan berpotensi mereduksi logam berat secara alami. Penelitian ini bertujuan untuk mengidentifikasi mikroorganisme indigenous yang berpotensi sebagai agen bioremediasi alami dalam menurunkan kadar logam berat timbal (Pb) pada sumur air asin yang digunakan untuk budidaya air payau. Sampel air dan sedimen diambil dari sumur Politeknik Kelautan dan Perikanan Sidoarjo, kemudian dilakukan isolasi bakteri, kultivasi, serta uji resistensi terhadap Pb dengan dosis 0.5, 1 dan 1.5 ppm dengan metode difusi cakram. Hasil analisis menunjukkan bahwa parameter kualitas air pada media air sumur Politeknik Kelautan dan Perikanan Sidoarjo seperti suhu, pH, dan BOD belum sepenuhnya memenuhi baku mutu air laut, namun masih memungkinkan untuk digunakan pada kegiatan budidaya air payau dengan adanya perlakuan persiapan media terlebih dahulu. Kandungan logam berat pada sedimen lebih tinggi dibandingkan pada air, dengan urutan konsentrasi Cu, Pb, Cd ,Cr dan Zn. Isolat bakteri yang diidentifikasi memiliki karakter gram negatif berbentuk batang (basil) dan menunjukkan kemampuan reduksi terhadap logam Pb. Berdasarkan hasil uji biokimia, isolat tersebut teridentifikasi sebagai Marinobacter sp. Yaitu bakteri laut halotoleran yang mampu bertahan pada lingkungan bersalinitas tinggi. Uji resistensi menunjukkan bahwa Marinobacter sp. memiliki kemampuan reduksi Pb yang tergolong sedang (zona hambat 10–11 mm) pada konsentrasi 0.5–1.5 ppm. Hasil ini menunjukkan bahwa mikroorganisme indigenous memiliki potensi sebagai agen bioremediasi ramah lingkungan untuk menurunkan kadar logam berat di air asin, sehingga dapat meningkatkan kualitas media budidaya air payau secara berkelanjutan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/79273 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/25187 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200302 2020 eng " 2549-0885 1858-4748 dc ANALISIS KANDUNGAN FITOKIMIA PADA BERBAGAI JENIS MAKROALGA DI PANTAI JUNGWOK, KABUPATEN GUNUNGKIDUL, YOGYAKARTA (Analysis of Phytochemical Contents in Various Types of Macroalgae at Jungwok Beach, Gunungkidul District, Yogyakarta) Setyorini, Heny Budi Institut Teknologi Yogyakarta Maria, Ernastin Institut Teknologi Yogyakarta Fitokimia; makroalga; Pantai Jungwok; Gunungkidul Penelitian ini bertujuan untuk mengetahui kandungan fitokimia pada berbagai jenis makroalga di Pantai Jungwok, Kabupaten Gunungkidul, Yogyakarta. Penelitian ini dilaksanakan di Pantai Jungwok, Kabupaten Gunungkidul, Yogyakarta. Materi penelitian ini adalah makroalga (Ulva sp., Gracillaria sp., dan Boergesenia sp). Metode yang digunakan dalam penelitian ini adalah survei dengan pendekatan kualitatif. Teknik pengambilan sampel makroalga menggunakan purposive sampling. Lokasi pengambilan sampel makroalga berada di bagian timur, tengah dan barat Pantai Jungwok. Analisis skrining fitokimia dilakukan dengan uji kualitatif. Analisis skrining alkaloid menggunakan metode Culvenor Fitzgerald, sedangkan untuk steroid dan terpenoid menggunakan metode Liebermann-Buchard Test, pada fraksi air yang terbentuk dilanjutkan dengan uji flavonoid, fenolik dan safonin. Hasil penelitian menunjukan bahwa sampel segar makroalga jenis Gracilaria sp., yang berada di bagian tengah Pantai Jungwok paling banyak mengandung senyawa bioaktif seperti alkaloid, terpenoid dan flavonoid.   The objective of this research was to identify the content of phytochemical in various types of macroalgae at Jungwok Beach, Gunungkidul District, Yogyakarta. This research was conducted at Jungwok Beach, Gunungkidul District, Yogyakarta. The material of this research were macroalgae (Ulva sp., Gracillaria sp., and Boergesenia sp.). This method of research used survey with a qualitative approach. The technique of collecting data was done through purposive sampling. The macroalgae samples were collected from the eastern, central and western part of Jungwok Beach. The phytochemical tests were carried out using qualitative test. Alkaloid screening analysis using the Culvenor Fitzgerald method, while for steroids and terpenoids using the Liberman Buchard Test method, the formed water fraction is followed by flavonoid, phenolic and safonin tests. The results showed that fresh sample of the macroalgae type Gracilaria sp., which is located in the middle of Jungwok Beach, contains the most bioactive compounds such as alkaloids, terpenoids and flavonoids. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/25187 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8099 2015-06-29T01:01:17Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc DAMPAK DINAMIKA GARIS PANTAI MENGGUNAKAN CITRA SATELIT MULTI TEMPORAL PANTAI SEMARANG PROVINSI JAWA TENGAH (Study of the Dynamics of Image Using Satellite Beach Line Multi-Temporal Beach Semarang Central Java Province) Sardiyatmo, Sardiyatmo Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Undip Semarang Supriharyono, Supriharyono Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Undip Semarang Hartoko, Agus Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Undip Semarang Garis pantai utara Semarang selalu mengalami perubahan dari tahun ke tahun, perubahan yang serius ini perlu untuk dilakukan pemantauan terus menerus. Permasalahan yang dihadapi di daerah pantai utara adalah bagaimana mengetahui perubahan garis pantai, proses yang terjadi dan mengapa terjadi perubahan garis pantai. Metode penelitian yang digunakan adalah interpretasi citra satelit Landsat tahun 1989 tahun 1994, tahun 1999, tahun 2004 dan citra Landsat tahun 2009, dan pengujian lapangan. Dengan menumpang susunkan ke lima citra satelit melalui sistem informasi geografis merupakan cara cepat untuk mengetahui perubahan yang terjadi di pantai utara Semarang. Garis pantai yang terjadi antara tahun 1989 sampai tahun 2009 lebih banyak mengalami proses abrasi jika dibandingkann dengan akresi. Abrasi yang terjadi sebesar 2086.1 ha, sedangkan akresi  sebesar 1221.6 ha. Proses abrasi terjadi akibat adanya arus laut dan ombak laut yang terus menerus menghantam bibir pantai serta adanya pantai yang relatif datar. Sedangkan akresi  disebabkan penumpukan sedimen yang berasal dari daratan  terendapkan di pantai terutama melalui muara sungai.  Untuk mengurangi dampak perubahan garis pantai sebaiknya  masyarakat ikut menjaga dengan mencegah adanya abrasi pantai. Cara yang dapat dilakukan dengan  penghijauan kawasan pantai, dengan penanaman mangrove ditepi pantai dan mengurangi penggunaan lahan di hulu untuk mengurangi bukaan lahan. Kata kunci : Dinamika garispantai, penginderaan jauh ,SIG   Northcoast of Semarang had been underwas of changes from year to year. This kind of serious coastel changes will need necessary to do a continuous monitoring. Problems of  the northern coastal area of  java is to find out how the changes  of coastline, the process  and why there is a change of coastline.  Research method used was analysis of  Landsat satellite images of 1989 1994, 1999, 2004 and the 2009, and field testing.  Then followed by overlay of the  five satellite images through a geographical information system is a quick way to find out the changes that occur in the northern coast of Semarang. Changes of coastal line that occurred between 1989 to 2009 experienced more erosion process if dibandingkann by accretion. Erosion that occurs at 2086.1 ha, while the accretion of 1221.6 ha. Based on the research can be drawn a conclusion that is stelit Landsat imagery can be used to determine changes in the coastline north Semarang. Coastal  erosion had been occurs as a result of ocean currents and sea waves continued to hit the beach and the beaches are relatively flat. While the accretion on the beach caused by the buildup of sediments derived from land and deposited on the beach, especially through the mouth of the river. Suggestions to redus the impact of changes in the shoreline community should care for the beach to prevent erosion. The application of an ecosystem based coastal management such as  planting mangroves on the beach and reduce the use of land in the upstream to reduce the aperture area. Keywords: Dynamical Coastline, Remote Sensing, GIS Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8099 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/236 2025-04-26T12:40:32Z saintek:RSA

nmb a2200000Iu 4500 "101023 2010 eng " 2549-0885 1858-4748 dc PERANAN SEKTOR PERIKANAN PADA PEREKONOMIAN JAWA TENGAH : PENDEKATAN MODEL INPUT OUTPUT Kohar M, Abdul Penelitian ini bertujuan untuk menganalisis peranan sektor perikanan terhadap: (1) struktur perekonomian Jawa Tengah, (2) keterkaitan dengan sektor lainnya, dan (3) dampak pengganda output, pendapatan, dan tenaga kerja pada perekonomian Jawa Tengah. Metode penelitian menggunakan studi kasus dan dilanjutkan dengan analisis deskriptif. Data yang dianalisis adalah Tabel Input Output Transaksi Domestik atas Dasar Harga Produsen Klasifikasi 19 Sektor Propinsi Jawa Tengah Tahun 2004. Analisis data selanjutnya dilakukan dengan menggunakan matematika ekonomi dan model input output yang dibantu dengan menggunakan program GRIMP 7.1. Hasil analisis menunjukkan : (1) masih rendahnya kontribusi sektor perikanan terhadap struktur perekonomian Jawa Tengah, yaitu pada distribusi input, output, nilai tambah bruto dan Pendapatan Domestik Regional Bruto (PDRB), (2) berdasarkan nilai keterkaitan sektor perikanan, keterkaitan ke belakang lebih besar dari pada ke depan, dengan demikian sektor perikanan lebih cenderung menyediakan input untuk sektor yang lain, dan (3) dari nilai pengganda output pendapatan, dan tenaga kerja sektor perikanan dibandingkan dengan 19 sektor yang lain menempati urutan ke-9 (pengganda pendapatan), ke-11 (pengganda output) dan ke-14 (pengganda tenaga kerja). Dapat disimpulkan bahwa sektor perikanan belum menjadi sektor unggulan bagi Jawa Tengah, akan tetapi sektor perikanan mempunyai potensi untuk terus dikembangkan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/236 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/50182 2023-02-10T03:38:44Z saintek:RSA

nmb a2200000Iu 4500 "221208 2022 eng " 2549-0885 1858-4748 dc SEAGRASS ORGANIC CARBON STOCK IN ALANG-ALANG BEACH, KARIMUNJAWA Ramadanti, Patria Theda Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Latifah, Nurul Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Hartoko, Agus Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Febrianto, Sigit Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Endrawati, Hadi Departement of Marine Science, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Ayuningrum, Diah Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro biomass; carbon; seagrass; Alang-alang; Karimunjawa The research was conducted in Alang-alang beach, Karimunjawa, in December 2019. The research method used descriptive explorative. Sampling was carried out at 18 points on Alang-Alang beach using a purposive sampling method with the help of line transects and transect quadrants. Observation method seagrass using seagrass watch. The results of this study indicate that found four different types of seagrasses were in Alang-alang beach, Karimunjawa, namely Enhalus acoroides (Ea), Thalassia hemprichii (Th), Cymodocea rotundata, (Cr) and Cymodocea serrulata (Cs), with a kind of seagrass that dominate these waters are the type of Thalassia hemprichii. The highest seagrass density is on line 6, which is 256 shoot m-2 with Th as a dominant, and line 5 (238 shoot m-2) with Cr as a dominant. While, the lowest density is on line 1 (28 shoot m-2) with Ea as a dominant. In this research above ground biomass (1.35 g m-2) has a higher value than below-ground biomass (1.25 g m-2), with Ea having the highest biomass, while Cr has the lowest, but Cr has a high density. Therefore, the highest organic carbon stock (OCS) is Ea (103.216 g Corg m-2), while the seagrass species that has the smallest OCS is Th (61.562 g Corg m-2). The average organic carbon stock obtained was 35.07 g Corg m-2. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-11-24 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/50182 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 3 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/31068 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200819 2020 eng " 2549-0885 1858-4748 dc Suherman, Agus Suherman Departemen Penangkapan Ikan FPIK-Undip Boesono, Herry Kurohman, Faik Muzakir, Abdul Kohar Penelitian ini bertujuan untuk menganalisis aktivitas dan kinerja operasional serta faktor-faktor penentu kinerja PPN Pengambengan. Penelitian ini dilaksanakan pada Oktober 2019 hingga Januari 2020 di PPN Pengambengan. Analisis data dilakukan dengan dua metode; pertama metode deskriptif yaitu untuk menganalisis aktivitas operasional dan penilaian kinerja operasional berdasarkan Keputusan Direktur Jenderal Perikanan Tangkap tahun 2015 Nomor 20/KEP-DJPT/ 2015; kedua metode Structural Equation Model (SEM) untuk mengetahui faktor-faktor penentu kinerja PPN Pengambengan. Hasil penelitian menunjukkan bahwa aktivitas operasional PPN Pengambengan terus mengalami peningkatan. Kunjungan kapal pada tahun 2019 mengalami kenaikan sebesar 17,83% dibandingkan tahun 2018. Pendaratan ikan mengalami kenaikan sebesar 88%. Total pendaratan mengalami kenaikan sebesar 99,60 %. Penilaian kinerja terhadap 27 kriteria berdasarkan pedoman yang ditetapkan Direktur Jenderal Perikanan Tangkap tahun 2015 menunjukkan bahwa kinerja operasional PPN Pengambengan adalah sebesar 84,25 – 87,50. Selama Oktober 2019 dan November 2019 kinerja sangat baik, untuk Desember 2019 dan Januari 2020 berkinerja Baik. Berdasarkan hasil pengujian SEM, pelayanan PPN mempunyai pengaruh paling besar terhadap kinerja PPN. Hal ini ini menunjukan bahwa semakin tinggi pelayanan PPN maka semakin tinggi pula kinerja PPN.   This research is purposed to analyze operational activities and determinants of the performance of NFP Pengambengan. This research was conducted in October 2019 to January 2020 in NFP Pengambengan. Data analysis is performed using two methods; the first is a descriptive method to analyze operational activities and assess the operational performance of NFP Pengambengan based on the guidelines in the Decree of the Director General of Capture Fisheries in 2015 Number 20/KEP-DJPT/2015; the second is the Structural Equation Model (SEM) method, which is to determine the determinants of the NFP Pengambengan performance. The results of this study indicate that the NFP Pengambengan operational activities continue to increase. Ship visits in 2019 have increased by 17.83% compared to 2018. Fish landings increased by 88%.  The total landing also increased as many as  99.60%. Based on test results, it's stated tha the value of the NFP Pengambengan performance is 84.25 - 87.50. The performance evaluation of 27 criteria based on guidelines issued by the Director General of Capture of Fisheries in 2015 showed that the operational performance of the NFP Pengambengan during October 2019 and November 2019 was very well performed, while for December 2019 and January 2020 it was categorized as well performed. Based on SEM test results, the NFP service has the most influence on NFP performance. This shows that the higher the NFP service, the higher the NFP performance. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/31068 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN ind Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8116 2015-06-29T15:38:36Z saintek:RSA

nmb a2200000Iu 4500 "140225 2014 eng " 2549-0885 1858-4748 dc IDENTIFIKASI SELAT DI KABUPATEN KARIMUN PROVINSI KEPULAUAN RIAU BERDASARKAN KAIDAH TOPONIMI (Strait Identification in Karimun Regency Riau Islands Province Based on Toponymy Method) Yulius, Yulius Pusat Litbang Sumberdaya Laut dan Pesisir Badan Litbang KP KKP Jakarta Salim, H.W.L. Pusat Litbang Sumberdaya Laut dan Pesisir Badan Litbang KP KKP Jakarta Survei toponim selat telah dilakukan dengan studi kasus di sekitar Kabupaten Karimun, Provinsi Kepulauan Riau. Indonesia merupakan negara kepuluan, selayaknya memiliki data yang pasti akan jumlah dan posisi unsur-unsur maritim seperti pulau, teluk, tanjung dan selat. Perhitungan sementara menunjukkan bahwa jumlah pulau sekitar 13 ribu lebih, jumlah teluk 612 dan tanjung 2141, sedangkan selat sebanyak 214. Jumlah selat tersebut menunjukkan bahwa masih sedikit perhatian dan penelitian yang mengkaji tentang selat di Indonesia. Selat sebagai salah satu unsur maritim juga tak kalah penting untuk dikaji, guna menyediakan data dasar untuk pengelolaan, pemanfaatan dan demi kepentingan kedaulatan negera. Tujuan penelitian ini adalah  untuk mengetahui kemungkinan dilakukan kegiatan toponim selat di Indonesia dan mengetahui dasar penamaan selat di daerah penelitian. Metode yang digunakan adalah studi literatur, penggunaan perangkat lunak pengolah citra satelit dan Sistem Informasi Gegrafis (SIG). Survei yang dilakukan berhasil mengindentifikasi 21 nama selat dengan 6 nama selat bernama dari peta laut DISHIDROS TNI-AL dapat diperbaharui dari hasil survei, dan dari selat-selat yang tidak memiliki nama pada peta tersebut berhasil diberi nama sebanyak 15 buah nama selat. Proses toponim selat di daerah penelitian berdasarkan pada bentuk topografi, flora, fauna, bentuk dan posisi selat, sejarah dan suku bangsa. Kata kunci : Kabupaten Karimun, SIG, selat, toponim   The Survey of Straits Toponymy has been conducted in approximately Karimun County Riau Archipelago Province. Indonesia is an archipelagic country, should have data that would be the number and position of the maritime elements such as islands, bays, capes and straits. Preliminary calculations indicate that the number of islands about 13 thousand more, the number of bays 612 and cape in 2141, while as many as 214 of the strait. Total strait shows that there is still a little attention and research study on the strait in Indonesia. Strait as one of the main elements of maritime also equally important to examine, in order to provide basic data for the management, utilization and in the interest of the sovereignty of countries. The purpose of this study was to explore the possibilities of the strait toponym, activities in Indonesia and know the basic naming the strait in the study area. The method used is literature study, the use of satellite image processing software and Geographic Information System (GIS) and field surveys. The result of the survey identified 21 straits, 6 straits have been named and 15 straits have been identified from filed survey. Toponym process for the strait in the study area based on topography shapes, floras, faunas, shapes and position of straits, history and ethnicity. Key words: Karimun Regency, GIS, strait, toponym Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 13:33:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8116 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 2 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2059 2020-12-07T08:06:35Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc PERBANDINGAN HASIL TANGKAPAN UDANG DENGAN MENGGUNAKAN LAPDU, GILTONG DAN TRAMMEL NET DI PERAIRAN SAENGGA KABUPATEN TELUK BINTUNI Iskandar1, Dahri 1Departemen Pemanfaatan Sumberdaya Perikanan, FPIK IPB Kampus IPB Dramaga, Bogor 16680 This experiment was carried out at Saengga Waters of Teluk Bintuni Regency using 6 (six) pieces of trammel net, lapdu and gilltong, respectively. The objective of this experiment was to compare catchability of trammel net, lapdu and gilltong for capturing shrimp. Total catch obtained in this experiment was 534 fishes which consist of 25 species. Dominant catch was banana prawn (Penaeus indicus) i.e 38.6% of total catch, followed by flatfish (Cynoglosus sp) and croaker fish (Cynoglosus sp) which consist of 17.04 % and 10.11 % of total catch, respectively. Dominant catch of gilltong and lapdu was dominated by fish while catch of trammel net was dominated by prawn. In term of Catch per Piece of Net, trammel net caught significantly large number of catch than gilltong and lapdu.   Key Words: Trammel Net, Gilltong, Lapdu, Catch, Shrimp Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2059 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49486 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230426 2023 eng " 2549-0885 1858-4748 dc Ramadhan, Kurnia Fajar Husni, Amir Department of Fisheries Faculty of Agriculture, Universitas Gadjah Mada, Jalan Flora Gedung Perikanan A4 Bulaksumur, Yogyakarta, Indonesia 55281 https://acadstaff.ugm.ac.id/AmirHusni http://orcid.org/0000-0003-3327-9848 Gracilaria sp. merupakan jenis rumput laut merah yang kaya akan kandungan iodium. Pemanfaatan Gracilaria sp. bisa diolah menjadi bubuk yang dapat difortifikasikan pada beberapa makanan. Inovasi penambahan bubuk Gracilaria sp. pada opak singkong dapat dilakukan sebagai salah satu alternatif makanan untuk mencukupi kadar iodium bagi tubuh. Tujuan penelitian ini adalah untuk mengetahui pengaruh fortifikasi rumput laut Gracilaria sp. terhadap karakteristik mutu opak singkong dan tingkat penerimaan konsumen terhadap opak singkong dengan fortifikasi Gracilaria sp. Penelitian dilakukan dengan membuat opak singkong dengan pencampuran bubuk Gracilaria sp. (0%; 2,5%; 5%; 7,5%; dan 10%) (b/b). Opak singkong dibuat untuk diuji kadar iodium, uji kerenyahan, uji daya kembang, uji kadar air, kadar abu, kadar lemak, kadar protein, kadar karbohidrat dan uji hedonik. Fortifikasi Gracilaria sp. pada opak dapat meningkatkan kadar iodium, menurunkan tingkat kerenyahan dan daya kembang opak, serta meningkatkan kadar air, kadar abu, dan kadar protein serta menurunkan kadar lemak dan karbohidrat dari opak singkong.   Gracilaria sp. is a type of red seaweed that is rich in iodine content. Iodine is one type of essential mineral needed for the body which if in a state of deficiency will result in various kinds of health problems. Utilization of Gracilaria sp. can be processed into a powder that can be fortified in some foods. The innovation of adding Gracilaria sp powder. in cassava opaque can be done as an alternative food to meet the levels of iodine for the body. The purpose of this study was to determine the effect of fortification of Gracilaria sp. on the quality characteristics of cassava opaque and the level of consumer acceptance of cassava opaque with fortification of Gracilaria sp. The research was conducted by making cassava opaque by mixing powdered Gracilaria sp. (0%; 2.5%; 5%; 7.5%; and 10%) (w/w). Cassava opaque was made to be tested for iodine content, crunch test, swellability test, water content test, ash content, fat content, protein content, carbohydrate content and hedonic test. Fortification of Gracilaria sp. in opaque can increase iodine content, reduce the level of crispness and opacity of opaque, and increase water content, ash content, and protein content and reduce fat and carbohydrate content of opaque. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49486 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/26414 2022-04-19T17:30:03Z saintek:RSA

nmb a2200000Iu 4500 "201222 2020 eng " 2549-0885 1858-4748 dc Rawung, Livana Dethris Bogor Agriculture University http://orcid.org/0000-0002-3054-4223 Ekastuti, Damiana Rita Sunarma, Ade Junior, Muhammad Zairin Rahminiwati, Min Manalu, Wasmen Permasalahan utama dalam kegiatan usaha budidaya perikanan antara lain adalah ketersediaan benih ikan yang tepat waktu, tepat jumlah dan berkualitas. Ketersediaan benih ikan sangat tergantung pada jumlah telur yang dapat dibuahi dan ditetaskan. Semakin tinggi presentase pembuahan dan penetasan maka akan semakin tinggi pula jumlah larva yang dapat dihasilkan. Penelitian ini menggunakan ikan lele sebagai hewan coba dengan tujuan untuk mengetahui pengaruh suplementasi kurkumin dan tiroksin pada induk ikan lele terhadap kualitas dan performa telur yang dihasilkan. Suplematasi kurkumin dan hormon tiroksin melalui pakan selama 12 minggu pemeliharaan. Parameter yang dianalisis berupa konsentrasi vitelogenin telur, diameter telur, koefisien keragaman diameter telur, konsentrasi lipid dalam telur (triglserida, kolesterol dan HDL), derajat pembuahan dan derajat penetasan. Hasil penelitian menunjukkan bahwa kelompok perlakuan yang diberikan kombinasi penambahan kurkumin dan hormon tiroksin memiliki nilai konsentrasi vitelogenin (8.17+2.74 µg/mL) (p<0,05), diameter telur (1.43+0.00 mm) (p<0,05), dan konsentrasi trigliserida (4.89+0.53 mg/g) (p<0,05) tertinggi diantara semua perlakuan, sementara itu kelompok perlakuan yang baik hanya diberikan penambahan kurkumin, maupun kombinasi penambahan kurkumin dan tiroksin cenderung memiliki nilai derajat pembuahan dan penetasan yang lebih tinggi dibandingkan dengan kelompok perlakuan yang tidak diberikan penambahan kurkumin.    The main problem in aquaculture is the availability of fish seedlings on time, in the right quantity and quality. The availability of fish seeds is determined by the number of eggs that can be fertilized and hatched. The higher the percentage of fertilization and hatching, the higher the number of larvae that can be produced. This study uses catfish as experimental animals because catfish are one of the most consumed cultivation commodities. The aim of this study is to determine the effect of curcumin and thyroxine supplementation on catfish brooders on the quality and performance of eggs produced. Catfish used in this experiment were given the addition of curcumin and thyroxine hormone through the feed for 12 weeks of rearing. Parameters analyzed were egg vitellogenin concentration, egg diameter, coefficient of diversity in egg diameter, lipid concentration in eggs (triglycerides, cholesterol, and HDL), degree of fertilization and degree of hatching. The results showed that the group given the combination of the supplementation curcumin and the thyroxine hormone had the values of vitellogenin concentration (8.17+2.74 µg/mL) (p <0.05), egg diameter (1.43+0.00 mm) (p <0.05), and triglyceride concentration (4.89+0.53 mg/g) (p <0.05) the highest among all treatments, meanwhile the group is only given the addition of curcumin, and the combination of supplementation of curcumin and thyroxine tends to have higher values of fertilization and hatching compared to the group which is not given the addition of curcumin. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/26414 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8330 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc Aquatic Productivity Analysis based on The Relationship between Physical and Chemical of Benthic Sediment with NO3 and PO4 in the Estuarine of Tuntang River Suprapto, Djoko Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Purnomo, Pujiono W. Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Sulardiono, Bambang Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang There are several types of water mixing in the estuary, as anexample is tuntang river which could be a model in the coast of north java island.The aims of this research are known, the spatial distribution of physical structure, organic matter, including he content of Nitrogene and phosphor in the sediment. Further more the role of physical and chemical sediment are also evaluated. The research was conducted in of May 2014, in an area which devided into 11 stations : one of them is located before the esturary while in the west, north west, east and north east the station are distributed proportionally. The variables measured are total organic matters, total nitrogen, total phosphate, NO3-N, PO4-P , Dissolved oxygen, current, depth and visibility. The result of the research shown that spatial distribution of the sediment strongly suggest the form of clay in front of estuary, south westward as well as north westwards. Clay distribution is well influenced by organic matter and nitrogene while phosphate content tend to be randomly distributed. In the case of the the current is weak while the oxygen content is high enough so that the relationship between nitrogen and sediment of clay contribute to the water environment condition as eutrophic status. Keywords : Aquatic Productivity, Sediment, NO3, PO4, Tuntang River Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8330 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2741 2020-09-17T10:49:07Z saintek:RSA

nmb a2200000Iu 4500 "100814 2010 eng " 2549-0885 1858-4748 dc Analyzes of Fishery Sector Contribution on the Central Java Economic Structure Dault, Adhyaksa Program Doktor Manajemen Sumberdaya Pantai Universitas Diponegoro Jl. Imam Bardjo SH No 5 Semarang Kohar, Abdul Program Studi Pemanfaatan Sumberdaya Perikanan FPIK UNDIP Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Hayam Wuruk No. 4A, Semarang Suherman, Agus Program Studi Pemanfaatan Sumberdaya Perikanan FPIK UNDIP Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Hayam Wuruk No. 4A, Semarang The research objective was to analyze the fishery sector contribution on the Central Java economic structure, establishment of input and output, intermediate demand dand final demand. The method used was input output analyses using Input Output Table based on the producer price of Central Java Year 2007 which was an updating data with production sector of 19 sectors. The use of Input Output Table was to find out the contribution of fishery sector on the Central java monetary through the establishment of Input and Output. The input establishment consisted of number of intermediate input and gross domestic product, while output establishment consisted of total intermediate output and total consumption. The analyses results showed that fishery sector has a small contribution on the Central Java monetary with total input Rp 9,756.09 million or 0.07%of the total input Rp 13,443,794.31 million, whereas for total output was Rp 15,287,649.78 million. Therefore, the output establishment from the fishery sector which was used as an input for other sector was still low and will influence the small contribution of the fishery sector on the establishment of gross domestic product of Central Java   Key words: Fishery sector, role, input output, Economic Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 09:56:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2741 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 1 (2009): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/58885 2025-05-15T10:48:23Z saintek:RSA

nmb a2200000Iu 4500 "231231 2023 eng " 2549-0885 1858-4748 dc ANALYSIS OF CHEMICAL CHARACTERISTICS OF KOMBUCHA TEA SEAWEED Eucheuma cottonii Rachmawati, Nandya Fitri Fisheries Product Technology Study Program, Faculty of Agriculture, PGRI University, Banyuwangi Miratis S., Siti Tsaniyatul Fisheries Product Technology Study Program, Faculty of Agriculture, PGRI University, Banyuwangi Adharani, Nadya Fisheries Product Technology Study Program, Faculty of Agriculture, PGRI University, Banyuwangi Yulianto, Maqsfiranda Erza Devi Fisheries Product Technology Study Program, Faculty of Agriculture, PGRI University, Banyuwangi Maulidha, Asih Fisheries Product Technology Study Program, Faculty of Agriculture, PGRI University, Banyuwangi Seaweed; Kombucha tea; Eucheuma cottonii; Chemical characteristics Seaweed is a marine plant that is found in many Indonesian waters. Seaweed has various types, one of which is Eucheuma cottonii seaweed.  So far, Eucheuma cottonii is only used as functional food in the food sector, but there are still few who use it as a functional drink. The purpose of this study was to determine the chemical characteristics of kombucha tea seaweed Eucheuma cottonii. The research method used is experimental. The results of the chemical characteristics obtained in the best treatment are treatment D (12%) with a total sugar content value of 7.67%, total ash content of 0.773%, polyphenol content of 0.177% and tannin content of 0.202%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-12-29 08:03:59 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/58885 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 4 (2023): SAINTEK PERIKANAN eng Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/29874 2021-11-30T12:01:21Z saintek:RSA

nmb a2200000Iu 4500 "210420 2021 eng " 2549-0885 1858-4748 dc ANALYSIS OF STOCK AND UTILIZATION RATE OF LONGTAIL TUNA (Thunnus tonggol) IN THE JAVA SEA Septiana, Eki Master Program in Management of Coastal Resources Faculty of Fisheries and Marine Sciences, Diponegoro University Saputra, Suradi Wijaya Faculty of Fisheries and Marine Sciences, Diponegoro University Haeruddin, Haeruddin Faculty of Fisheries and Marine Sciences, Diponegoro University longtail tuna; growth rate; exploitation rate; Java Sea Longtail is one of the most important economic species in Indonesia to purse seine and mini purse seine catch. This research activity aims to determine population parameter i.e. growth, mortality, and determine the management strategies for longtail tuna. The collecting of length and weight data was conducted at Pekalongan fishing port from October to December 2019. The sampling method used was a systematic random sampling method, with the collected data being the length and weight of the longtail tuna. The long weight r relationship was negative allometric and the b value was 2.7776. The asymptotic length rate (L∞) was 55 cm FL, growth rate (K) was 0,88/year and zero age (t0) was 0,1536 year. Natural mortality (M) is 1.41/year, fishing mortality (F) is 1.38/year, total mortality (Z) is 2.79/year. The level of exploitation (E) of 0.49 (underexploited), so that utilization can be increased. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/29874 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/10558 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150828 2015 eng " 2549-0885 1858-4748 dc ANALISIS INVENTARISASI MASALAH DAN PENGEMBANGAN SOLUSI DALAM PENGEMBANGAN PERIKANAN ARTISANAL DI PANTAI KEDONGANAN BALI Problem Inventory Analysis and Solution to Artisanal Fisheries Development in Kedonganan Beach Bali Wijayanto, Dian Program Studi Pemanfaatan Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Huda, Muhammad Nurul Konsultan / Peneliti Sosial Ekonomi Perikanan Yanuartoro, Ricky Konsultan / Peneliti Sosial Ekonomi Perikanan ABSTRAK   Pantai Kedonganan merupakan salah satu fishing base nelayan perikanan artisanal di Kabupaten Badung, Bali. Perkembangan perikanan artisanal di Pantai Kedonganan semakin terdesak oleh perkembangan pariwisata. Oleh karena itu, perlu dilakukan kajian mengenai pengembangan perikanan tangkap artisanal di sekitar Pantai Kedonganan melalui proses analisis inventarisasi permasalahan dan pengembangan alternatif solusi. Penelitian ini bertujuan untuk mengkaji karakteristik usaha perikanan tangkap, inventarisasi masalah yang dialami para pelaku perikanan tangkap dan solusi untuk pengembangan perikanan tangkap di Pantai Kedonganan. Pengumpulan data dilakukan melalui observasi, wawancara, dan studi pustaka. Analisis data dilakukan melalui analisis nilai penting dan nilai kondisi sekarang dari key factors terpilih, dan selanjutnya dilakukan pemetaan key factors yang prioritas untuk dikembangkan. Hasil penelitian menunjukkan bahwa usaha perikanan dengan fishing base di Pantai Kadonganan merupakan usaha perikanan artisanal yang bersifat one day fishing dan secara dominan menggunakan perahu motor tempel dengan alat tangkap gill net dan pancing. Faktor yang perlu mendapatkan prioritas ditingkatkan dalam pengembangan perikanan artisanal di Pantai Kedonganan adalah (a) teknologi penanganan ikan, (b) dukungan lembaga keuangan penyedia modal, (c) sinergisitas kepentingan pemangku kepentingan, (d) dukungan politik, (e)  potensi sumberdaya ikan, (e) teknologi penangkapan ikan, (f) potensi pasar industri  pengolahan ikan, (g) modal pelaku perikanan tangkap, dan (h) regulasi pendukung perikanan tangkap. Selain itu, perikanan artisanal dan pariwisata bahari dapat bersinergi, terutama untuk pengembangan wisata kuliner.   Kata kunci : Analisis Inventarisasi Masalah, Pemetaan Prioritas, Perikanan Artisanal, dan Pantai Kedonganan   ABSTRACT   Kedonganan Beach is one of fishing base to artisanal fisheries in Badung District Regency The artisanal fisheries at Coastal Kedonganan increasingly pressured by a tourism development. So, it is necessary to study about an artisanal fisheries development at Kedonganan Beach through an inventory problems and alternative solutions development. This research aims to identify a fishing business characteristics, to identify a problems and to develop a solutions. Data collected through observation, interviews, and literature reviews. Data analysis used an importance value and current condition value analysis to several key factors, and map a priority factors to be developed. The research proved that the fishing business at Kadonganan Beach is an artisanal fisheries, and one day fishing. Fishing business at Kadonganan Beach use fishing boat outboard motor, gill net and hand line. Priority factors that need to improve artisanal fisheries at Kedongangan Beach is (a) fish handling technology, (b) financial institution support, (c) stakeholder synergy, (d) political support, (e) fish resources potential, (e) fishing technology, (f) market potential of the fish processing industry, (g) capital power of fishermen, and (h) fisheries regulations support. The artisanal fisheries and marine tourism can also work together, especially for a culinary tourism development.  Keywords : Problem Inventory Analysis, Priority Mapping, Artisanal Fisheries and Kedonganan Beach Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/10558 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/50019 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230501 2023 eng " 2549-0885 1858-4748 dc Karina, Indira Fakultas Sains, Universitas Nahdlatul Ulama Sumatera Barat, Jl. S. Parman 119A Ulak Karang, Padang, Sumatera Barat, Indonesia Analysis of fish stomach contents can provide an overview of the composition of natural feed in the stomach with its habitat.The research about stomach content analysis of gariang fish (Tor sp) at Anai River aimed to know the kind of gariang fish’s food include main food, supplement food, and additional food. This is because the economis value of gariang fish is very high but the distribution is still limited and the management has not been carried out optimally. The potensial of gariang fish resources also be threatened due to environmental pollution caused by household and industrial waste. Therefore, it is necessary to have good management to maintained the environmental conditions and the availability of gariang fish food Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 https://ejournal.undip.ac.id/index.php/saintek/article/view/50019 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/69006 2025-04-15T08:17:05Z saintek:RSA

nmb a2200000Iu 4500 "241027 2024 eng " 2549-0885 1858-4748 dc MANAGEMENT OF SEKETAK RIVER, CENTRAL JAVA, INDONESIA BASED ON DETERMINATION OF WATER QUALITY STATUS AND POLLUTION LOAD APPROACH A’in, Churun Department of Aquatic Resource, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang, 50275, Indonesia Rudiyanti, Siti Department of Aquatic Resource, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang, 50275, Indonesia Suryanti, Suryanti Department of Aquatic Resource, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang, 50275, Indonesia Zevriawan, Aldhimas Bagus Department of Aquatic Resource, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang, 50275, Indonesia Index Terms- Water Quality Status; Pollution Index (PI);Load Pollution; Seketak River; lightly polluted Due to the presence of renowned universities, Tembalang, Semarang City, is experiencing rapid development. However, this development not only brings positive impacts but also raises environmental issues, one of which is river pollution. Seketak River, a ±10.5 km long river that has its headwaters in Banyumanik Subdistrict and empties into Diponegoro University's Education Reservoir, is one of the affected areas. This river pollution has the potential to disrupt water quality and aquatic biota life. The source of pollution is suspected to come from domestic, industrial, and livestock waste around the Seketak watershed. Therefore, intensive research was conducted to analyze the status of water quality and pollution load based on point sources. This research aims to provide recommendations for proper management and control of pollution. Data were collected during the transitional season (dry to rainy) using the Pollution Index (IP) method based on the Decree of the Minister of Environment No. 115 of 2003 and the Pollution Load (BP) method. The research involved four sampling points, each representing a pollutant source (industry, settlement, campus, and livestock), with two repetitions. The results showed that the average IP value of Seketak River was in the lightly polluted category, referring to the Class II Quality Standard of PP No. 22 of 2021. In the first repetition, the IP value was 2.87, while in the second repetition it reached 3.26. The Pollution Load Analysis identified 5 variables that exceeded the maximum load including Nitrite, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), iron (Fe) and lead (Pb). These findings emphasize the importance of integrated management efforts to mitigate pollution in Seketak River.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-11 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/69006 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 3 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/42006 2021-12-10T01:23:23Z saintek:RSA

nmb a2200000Iu 4500 "211022 2021 eng " 2549-0885 1858-4748 dc MOLECULAR IDENTIFICATION OF DENITRIFYING BACTERIA TO EVALUATE THE SENSITIVITY OF SELECTIVE MEDIA Yurnaningsih, Dianti Eka Aquatic Resources Management Study Program, Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro, Jl. Prof. H. Soedarto, SH., Tembalang, Semarang, 50725, Indonesia Sabdaningsih, Aninditia Aquatic Resources Management Study Program, Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro, Jl. Prof. H. Soedarto, SH., Tembalang, Semarang, 50725, Indonesia Tropical Marine Biotechnology Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro, Jl. Prof. H. Soedarto, SH., Tembalang, Semarang, 50725, Indonesia Marine Natural Product Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro, Jl. Prof. H. Soedarto, SH., Tembalang, Semarang, 50725, Indonesia Widyorini, Niniek Aquatic Resources Management Study Program, Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro, Jl. Prof. H. Soedarto, SH., Tembalang, Semarang, 50725, Indonesia Acinetobacter junii; denitrifying bacteria; GSP medium; Pseudomonas; Rawa Pening Eutrophication is the main problem in Rawa Pening that occurs due to the high supply of organic material from various sources. The high level of nitrate in the water can be reduced through denitrification mechanism using some bacteria such as Pseudomonas group. This bacteria group was often isolated using Glutamate Starch Phenol (GSP) selective media. This study aims to identify the species from the floating net cage of Rawa Pening that was suspected as Pseudomonas group based on colony morphology in GSP through molecular approach, build the phylogenetic tree, and analyze the genetic distance. The research was conducted from January to May 2020. The molecular approach was carried out using the Polymerase Chain Reaction (PCR) method with 16S rRNA gene amplification. The results of BLAST analysis showed that isolate D1 which obtained from water samples in the Rawa Pening floating net cage area had 99.23% homology with Acinetobacter junii strain tu13. The partial sequence of DNA was already deposited to GenBank with accession number LC603787. The phylogenetic tree construction was built using Neighbor-Joining analysis on MEGA X software. The results showed that isolate D1 was related to Acinetobacter junii strain tu13 with 0.006 genetic distance while Pseudomonas fluorescens with 0.144 genetic distance. The result revealed that isolate D1 closely related to A. junii rather than Pseudomonas group. This study indicated that GSP medium has a sensitivity range at the Order level, namely Pseudomonadales. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/42006 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/47579 2026-02-05T06:26:25Z saintek:RSA

nmb a2200000Iu 4500 "240831 2024 eng " 2549-0885 1858-4748 dc Hanifah, Nur Inda Annisa'ul Departemen Teknologi Hasil Perairan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Jl. Agatis, Bogor, 16680 Jawa Barat, Indonesia Suseno, Sugeng Heri Jacoeb, Agoes Mardiono Ikan Tuna merupakan jenis pelagis besar, industry pengolahan ikan tuna menghasilkan produk samping, salah satunya minyak ikan. Minyak ikan kaya akan PUFA (EPA dan DHA). Penelitian ini bertujuan untuk mengetahui profil asam lemak, kandungan logam berat, kejernihan, dan nilai oksidasi minyak ikan tuna mentah, menentukan campuran minyak ikan tuna murni dengan penambahan nilai antioksidan dan mengetahui pengaruh pengemasan botol kaca selama penyimpanan. Penelitian ini dibagi menjadi dua tahap. Tahap pertama adalah karakterisasi minyak ikan tuna mentah dan pemurnian menggunakan metode degumming dan bleaching. Tahap kedua adalah penambahan antioksidan alfa-tokoferol (0,4%; 0,6%; 0,8%), minyak zaitun (5%, 15%, 25%, 35%, 45%), minyak dedak padi (5%, 15 %, 25%, 35%, 45%), kemudian diuji menggunakan metode real-time pada suhu kamar. Perlakuan terbaik pada minyak ikan tuna tahap kedua disimpan dalam berbagai botol kaca dengan metode schaal oven test selama 12 hari. Hasil kandungan asam lemak tertinggi pada minyak ikan tuna mentah, minyak zaitun, dan minyak dedak padi berturut-turut adalah DHA, asam oleat, dan asam oleat. Residu logam berat merkuri memenuhi standar SNI, tingkat kejernihan lebih dari 70%, dan nilai parameter oksidasi memenuhi standar IFOS. Perlakuan terbaik minyak ikan tuna murni selama penyimpanan menggunakan metode real-time pada suhu kamar yang memenuhi standar IFOS adalah campuran 0,6% α -tokoferol. Perlakuan terbaik minyak ikan dalam kemasan botol kaca dengan metode schaal oven test yang memenuhi standar IFOS adalah botol kaca warna coklat.     Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/47579 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 2 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11152 2020-04-17T19:23:33Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc KARAKTERISTIK HIDROLISAT PROTEIN IKAN BANDENG (Chanos chanos Forsk) DENGAN KONSENTRASI ENZIM BROMELIN YANG BERBEDA Caracteristic of Milkfish (Chanos chanos Forsk) Protein Hydrolysate as effect of Different Bromelin Enzyme Concentration Wijayanti, Ima Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Romadhon, Romadhon Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rianingsih, Laras Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ikan Bandeng (Chanos chanos); hidrolisat protein ikan; enzim bromelin   Ikan Bandeng berpotensi menjadi bahan baku hidrolisat protein ikan karena kandungan protein tinggi dan potensi produksi cukup melimpah. Enzim Bromelin merupakan salah satu enzim protease yang dapat membantu dalam mempercepat reaksi hidrolisa protein. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi enzim bromelin terhadap kualitas hidrolisat protein Ikan Bandeng (Chanos chanos Forks) segar. Rancangan percobaan yang digunakan pada penelitian ini adalah rancangan acak lengkap dengan perlakuan konsentrasi enzim yang berbeda (4%, 5% dan 6%). Parameter yang diamati adalah nilai kadar protein, lemak, air, karbohidrat, serat kasar dan rendemen.  Konsenterasi enzim bromelin berpengaruh nyata pada nilai kadar protein, lemak, air, abu, serat kasar dan rendemen (P<0,05), tetapi tidak berpengaruh nyata pada kadar karbohidrat (P>0,05). Kondisi optimum untuk menghidrolisis daging Ikan Bandeng menjadi hidrolisat protein adalah konsentrasi enzim bromelin 6% dengan waktu hidrolisis selama 6 jam.   Kata kunci: Ikan Bandeng (Chanos chanos), hidrolisat protein ikan, enzim bromelin     ABSTRACT   Milkfish is potentially become the raw material of fish protein hydrolyzate because of the high protein content and relatively abundant production. Bromelin is a protease enzyme that can help on improving protein hydrolyzate quality. This research aimed to determine the effect of bromelain enzyme concentration on the quality of the protein hydrolyzate of milkfish (Chanos chanos Forsk) fresh. The experimental design used in this study was completely randomized design with different concentrations of the enzyme (4%, 5% and 6%) as a treatment. The parameters measured were the contents of protein, fat, water, carbohydrates, crude fiber and yield. The concentration of enzyme bromelin significant effect on contents of protein, fat, water, ash, crude fiber and yield (P<0,05), but no effect on carbohydrates content (P>0,05). The optimum conditions to hydrolyze the milkfish meat into a protein hydrolyzate used 6% bromelin enzyme at the time of hydrolysis for 6 hours.  Keywords: Milkfish (Chanos chanos), fish protein hydrolisate, bromelin enzym Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11152 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21340 2020-04-17T19:28:46Z saintek:RSA

nmb a2200000Iu 4500 "180808 2018 eng " 2549-0885 1858-4748 dc SEBARAN SPASIO TEMPORAL KELIMPAHAN FITOPLANKTON DAN KLOROFIL-A DI PERAIRAN UJUNG KARTINI JEPARA (Spatial and Temporal Distribution Abundance of Phytoplankton and Chlorophyll-a in Ujung Kartini Waters Jepara) Yulianto, Muchtar Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Muskananfola, Max Rudolf Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Rahman, Arif Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Kesuburan Perairan; Kelimpahan Fitoplankton; Klorofil-a;Perairan Ujung Kartini Perairan Ujung Kartini merupakan perairan yang menjadi muara dari Sungai Wiso dan Sungai Kanal yang terletak di sisi barat Kabupaten Jepara. Di sekitar Perairan Ujung Kartini terdapat kegiatan manusia yang dikhawatirkan dapat menyebabkan perubahan kualitas air terutama kandungan unsur hara. Perubahan kandungan unsur di perairan akan berdampak terhadap persebaran dan kelimpahan fitoplankton serta konsentrasi klorofil-a. Penelitian ini bertujuan untuk mengetahui tingkat kesuburan perairan dan hubungan antara kelimpahan fitoplankton dengan konsentrasi klorofil-a. Penelitian dilakukan pada bulan November dan Desember 2017. Penelitian ini termasuk jenis penelitian analisis deskriptif dan penentuan lokasi sampling menggunakan metode purposive sampling. Pengambilan sampel air dan fitoplankton dilakukan di tiga stasiun yang ditentukan berdasarkan tinggi rendahnya kegiatan manusia. Pengambilan sampel tersebut dilakukan pada saat kondisi pasang dan surut dengan dua kali pengulangan. Hasil penelitian yang diperoleh menunjukan bahwa kelimpahan fitoplankton pada saat pasang dan surut berkisar antara 6.375 – 13.725 sel/l dan konsentrasi klorofil-a pada saat pasang dan surut berkisar antara 0,126 – 1,392 mg/m3. Nilai diatom quotient sebesar 1,533 yang berarti perairan yang diteliti termasuk ke dalam kategori perairan eutrofik. Kelimpahan fitoplankton dan konsentrasi klorofil-a pada saat pasang lebih tinggi daripada saat surut. Keduanya mempunyai hubungan yang sangat erat.   Ujung Kartini Waters is part of the estuary of the Wiso River and Kanal River which are located on the west side of Jepara Regency. In the surrounding area, there are human activities that are feared to cause changes in water quality, especially nutrient content. Changes in nutrients content in the waters will have impact on the distribution and abundance of phytoplankton and concentration of chlorophyll-a.  This study aims to determine the level of aquatic productivity and the relationship between phytoplankton abundance with chlorophyll-a concentration. The study was conducted from November to December 2017. This research includes descriptive analysis and determination of sampling location using purposive sampling method. Samples of water and phytoplankton were collected at three stations based on the level of human activity. Sampling was carried out during high tide and low tide with two repetitions. Based on the results of the research, the abundance of phytoplankton at high and low tides ranged between 6.375 - 13.725 cells/l and chlorophyll-a concentrations at high and low tides ranged between 0,126 – 1,392 mg/m3. The value of diatom quotient is 1,533 which means that the waters of study area belong to the eutrophic category. The abundance of phytoplankton and concentrations of chlorophyll-a at high tide is higher than at low tide. Both show a high level relationship. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21340 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6769 2025-04-26T12:35:15Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc Species and size composition of tuna longline catches in the Southes of Java, Indian ocean Triharyuni, Setiya Pusat Penelitian Pengelolaan Perikanan dan Konservasi Sumberdaya Ikan, Jakarta Prisantoso, Budi Iskandar Pusat Penelitian Pengelolaan Perikanan dan Konservasi Sumberdaya Ikan, Jakarta The growth of long line fleets operating in the south of Java resulted in smaller tuna caches both  in number and size. Information on species and size composition of tunas is very important. This was done to obtain an overview of long line catch composition and its linear regression. The long liner’s catch data from south of Java in July, September, October 2005 and January 2006 are processed with a simple linear  regression. The result shows that the yellow fin tuna is the dominant catch, where stingrays are the largest in by catch. From length-weight relationship analysis, which is divided into whole length-weight relationship and processed length- weight relationship, it is shown that the growth of big eye tuna is isometric, where albacore and yellow fin is negative allometric.   Key words: Albacora, bigeye, Yelowfin, fish weight, fish length Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6769 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/40380 2022-04-19T17:13:22Z saintek:RSA

nmb a2200000Iu 4500 "220325 2022 eng " 2549-0885 1858-4748 dc Putriningtias, Andika Universitas Samudra https://orcid.org/0000-0002-4426-3377 Siregar, Yusnaini Anjani Komariyah, Siti Ikan Komet (Carassius auratus) merupakan salah satu ikan hias yang menarik, murah dan selalu memberi konsistensi hasil yang identik dengan induknya. Tetapi ikan tersebut dapat rusak dikarenakan beberapa unsur, salah satu unsur yang berperan untuk kerusakan dan timbulnya penyakit yaitu patogen seperti Argulus sp. Pengendalian Argulus sp. dapat dilakukan dengan pemberian antibiotik. Namun, pada saat ini penggunaannya dibatasi selain tingginya harga, bila pemberian antibiotik berlebihan juga dapat berdampak negatif terhadap lingkungan dan ikan, maka dicari pengganti dengan menggunakan bahan alami buah mengkudu (Morinda citrofolia). Penelitian ini bertujuan untuk menganalisis pemberian perasan buah mengkudu dengan dosis yang tepat untuk pelepasan Argulus sp. pada tubuh ikan Komet dan berapa lama Argulus sp. akan mati setelah pemberian perasan buah mengkudu. Diharapkan perasan buah mengkudu dapat bermanfaat bagi kegiatan budidaya ikan komet sebagai salah satu bahan pengendalian parasit yang mudah dicari. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan, tiap perlakuan diulang 4 kali sehingga terdiri atas 16 percobaan. Perlakuannya adalah P0 (tanpa perasan buah mengkudu), P1 (4 ml/L), P2 (4,5 ml/L), P3 (5 ml/L). Selain itu dilakukan pengukuran parameter kualitas air seperti suhu, pH dan DO, sebagai data pendukung penelitian. Hasil penelitian yang telah dilakukan selama 15 hari menunjukkan bahwa perbedaan dosis perasan buah mengkudu terhadap pengendalian Argulus sp. tidak berpengaruh nyata terhadap Survival rate ikan Komet dan mortalitas Argulus sp. sedangkan pada waktu dan persentase pelepasan Argulus sp. dan waktu kematian Argulus sp. menunjukkan hasil yang berpengaruh nyata.   Comet Fish (Carassius auratus) is one of the attractive ornamental fish, cheap and always gives consistent results that are identical to the parent. But the fish can be damaged due to several elements, one of the elements that play a role in damage and the emergence of disease is pathogens such as Argulus sp. Control of Argulus sp. This can be done by giving antibiotics, however, at this time their use is limited in addition to the high price, if excessive antibiotics can also have a negative impact on the environment and fish, then a substitute is sought by using natural ingredients from mengkudu fruit (Morinda citrofolia). This study aims to analyze the administration of mengkudu juice with the right dose for the release of Argulus sp. on the body of Comet fish and how long Argulus sp. will die after giving mengkudu juice. It is hoped that the juice of the mengkudu fruit can be useful for comet fish cultivation activities as one of the easy-to-find parasite control materials. This study used a completely randomized design (CRD) with 4 treatments, each treatment was repeated 4 times so that it consisted of 16 trials. The treatments were P0 (without mengkudu juice), P1 (4 ml/L), P2 (4.5 ml/L), P3 (5 ml/L). In addition, water quality parameters such as temperature, pH and DO were measured as supporting data for the research. The results of the research that had been carried out for 15 days showed that the difference in the dose of mengkudu juice on the control of Argulus sp. did not significantly affect the survival rate of comet fish and the mortality of Argulus sp. while the time and percentage of release of Argulus sp. and the time of death of Argulus sp. show significant results.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/40380 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/70818 2025-08-16T05:10:24Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Alimudi, Saiful Universitas Muhammadiyah Maluku https://sinta.kemdikbud.go.id/authors/profile/6774326 https://orcid.org/0000-0002-8102-8333 Nurlette, Hartono Fatsey, Alwi Kaliky, Kamarudin Kawasan eksosistem mangrove Desa Wariheru memiliki potensi untuk dikembangkan menjadi area ekowisata. Melalui pengembangan tersebut, manfaat dari hutan mangrove tidak hanya dinikmati sebagai wisata alam, namun dapat memberikan alternatif khususnya masyarakat pesisir untuk meningkatkan pendapatan ekonomi. Kendati demikian, realisasi oleh stakeholder dan pemerintah belum mewujudkan harapan tersebut. Urgensi penelitian ini berfokus pada pemanfaatan teknologi sistem informasi geografis (SIG) untuk mengetahui potensi hutan mangrove sebagai kawasan ekowisata. Pendekatan SIG dapat dimanfaatkan sebagai acuan awal dalam pengambilan kebijakan terkait pengelolaan dan pengembangan kawsan ekosistem mangrove. Tujuan penelitian ini adalah untuk mengetahui kesesuaian lahan dan daya dukung ekowisata mangrove desa Waiheru. Metode yang digunakan dalam penelitian ini adalah deskriptif kauntitatif dengan pengumpulan data melalui observasi dan survey lapangan. Analisis kesesuaian lahan untuk ekowisata mangrove dilakukan secara spasial berdasarkan perkalian antara nilai skor dan bobot yang diperoleh dari masing-masing parameter, melalui pendekatan SIG. Analisis daya dukung ekowisata dihitung dengan persamaan Daya Dukung Kawasan (DDK). Hasil penelitian menunjukan informasi indkes kesesuain wilayah (IKW) desa Waiheru termasuk dalam kategori sesuai dengan luas 6,98 ha. Panjang area yang dapat dimanfaatkan untuk kegiatan tracking adalah 1.202 m dan daya dukung ekowisata mangrove adalah 192 orang/hari, dengan mempertimbangkan lamanya waktu kunjungan wisata setiap pengunjung (buka 8 jam/hari). Secara keseluruhan kawasan ekosistem mangrove Desa Waiheru dikategorikan cukup sesuai untuk dikembangan menjadi kawasan ekowisata dengan daya tampung dalam kategori baik dan tidak melebihi ambang batas maksimal yang diperbolehkan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/70818 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6815 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc The Effect of Probiotic Supplementation to The Total Number of Bacteria In Kidney of Nila Fish After Antagonism Test With Aeromonas hydrophila and a typical Aeromonas salmonicida Nursanti, Ferina Laboratorium Mikrobiologi Fakultas Biologi Universitas Jenderal Soedirman lrianto, Agus Laboratorium Mikrobiologi Fakultas Biologi Universitas Jenderal Soedirman Hernayanti, Hernayanti Laboratorium Mikrobiologi Fakultas Biologi Universitas Jenderal Soedirman This research was aimed to know the effect of A3-51 probiotic supplementation on food to the total number of bacteria in kidney and mortality of nila fish (Oreochromis niloticus). This research was carried out  in two steps, the first was to know the highest immunity level from fish indicated by the increasing number of the macrophage and its phagocytic activity. Meanwhile, the second was to know the immunity level of fish which injected by Aeromonas hydrophila and atypical Aeromonas salmonicida. The experimental method used was Completely Randomized  Design in  3 replicates. The result from the first step showed that the highest  non specific immune system  was found in 21 days treatment.  The second step showed that the highest  total  number  of  bacteria  in  kidney  and  mortality  level  were  20.23 x  10 cells/g  and  46.67% respectively, both was found in B2 treatment.   Key words: probiotic, macrophage, total number of bacteria, mortality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6815 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/40228 2022-10-21T03:39:48Z saintek:RSA

nmb a2200000Iu 4500 "220906 2022 eng " 2549-0885 1858-4748 dc H, Muhammad Amien Universitas Borneo Tarakan widiatmaka, Widiatmaka Nirmala, Kukuh Pertiwi, Setyo Ambarwulan, Wiwin Tambak sebagai media terkontrol yang digunakan untuk memelihara atau membesarkan udang harus memenuhi persyaratan kelangsungan hidup dan pertumbuhan udang. Penelitian ini bertujuan untuk menganalisis faktor kualitas lingkungan tambak yang berpengaruh terhadap produktivitas tambak budidaya udang windu sistem teknologi tradisional di Kabupaten Bulungan. Pelaksanaan penelitian ini dilakukan pada bulan Februari-April 2019. Penelitian ini menggunakan metode regresi linier berganda dan pengambilan sampel dilakukan dengan metode purposive sampling. Berdasarkan hasil uji simultan bahwa variabel suhu, salinitas, pH air, alkalinitas, kesadahan, oksigen terlarut, fospat air, besi air, pH tanah, bahan organik tanah, karbon organik tanah, fospat tanah, amonia tanah, nitrit tanah, nitrat tanah, kalium tanah, dan besi tanah berpengaruh terhadap produktivitas tambak sebesar 128,347 kg/ha/siklus. Sedangkan uji parsial diperoleh 8 variabel yang berpengaruh langsung terhadap produktivitas tambak udang yaitu pH air, alkalinitas, kesadahan, besi air, pH tanah, bahan organik tanah (BO), karbon organik tanah, dan amonia tanah. Pond as a controlled medium used to raise or raise shrimp must meet requirements for survival and growth of shrimp. This study aims to analyze the quality factor pond environment that affects the productivity of tiger shrimp ponds in the Bulungan Regency. The implementation of this research was carried out in February-April 2019. This study used the regression method multiple linear and sampling is done by purposive sampling method. Based on the results of the simultaneous test that the variables of temperature, salinity, water pH, alkalinity, hardness, dissolved oxygen, water phosphate, water iron, soil pH, material soil organics, soil organic carbon, soil phosphate, soil ammonia, soil nitrate, soil nitrate, soil potassium, and soil iron have a major effect on the productivity of ponds by 128,347 kg/ha/cycle. While the partial test obtained 8 variables that directly affect the productivity of shrimp ponds, namely water pH, alkalinity, hardness, water iron, soil pH, soil organic matter (BO), soil organic carbon, and soil ammonia.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/40228 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/68268 2025-10-03T03:26:09Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc Mukti, Retno Cahya Universitas Sriwijaya https://scholar.google.com/citations?user=6fUJbdsAAAAJ&hl=id&authuser=2 https://orcid.org/0000-0003-1890-1408 Yulisman, Yulisman Sefrila, Marlin Riswandi, Agung Aprilia, Marsela Pakan merupakan faktor esensial yang menentukan pertumbuhan dan efisiensi produksi dalam budidaya ikan. Pakan yang diformulasi tersusun dari berbagai bahan baku, baik hewani maupun nabati. Bahan nabati yang umumnya digunakan sebagai sumber protein dalam formulasi pakan ikan adalah tepung bungkil kedelai. Namun, tepung bungkil kedelai masih diimpor dari luar negeri. Oleh sebab itu, perlu alternatif bahan nabati yang dapat digunakan sebagai sumber protein untuk mensubstitusi tepung bungkil kedelai dalam formulasi pakan. Tepung daun Indigofera zollingeriana terbukti mampu mensubstitusi tepung bungkil kedelai pada beberapa jenis ikan, diantaranya ikan gurame, ikan lele, dan ikan tambakan. Penelitian ini bertujuan untuk mengetahui persentase terbaik tepung daun I.zollingeriana dalam mensubstitusi tepung bungkil kedelai pada formulasi pakan ikan betok. Penelitian ini menggunakan rancangan acak lengkap terdiri atas empat perlakuan dan tiga ulangan. Perlakuan yang diberikan yaitu kombinasi tepung bungkil kedelai dan tepung daun I. zollingeriana dengan persentase berbeda dalam formulasi pakan ikan betok, yaitu 40%:0% (P0), 30%:10% (P1), 20%:20% (P2), dan 10%:30% (P3). Parameter yang diukur antara lain pertumbuhan bobot dan panjang mutlak, rasio efisiensi protein, efisiensi pakan, kelangsungan hidup dan kualitas air. Hasil penelitian menunjukkan substitusi tepung bungkil kedelai dengan tepung daun I. zollingeriana sebesar 50% (P2) merupakan perlakuan terbaik yang menghasilkan pertumbuhan bobot mutlak 1,77 g, pertumbuhan panjang mutlak 1,01 cm, rasio efisiensi protein 1,57, efisiensi pakan 51,76%, dan kelangsungan hidup ikan betok sebesar 96,67%. Parameter kualitas air pada P2 meliputi suhu 26,6-29,8°C, pH 6,6-7,6, oksigen terlarut 4,4-5,8 mg L-1 dan amonia 0,04-0,10 mg L-1. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/68268 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16819 2020-04-17T19:26:36Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc MODIFIKASI BUBU (TRAP) BERCELAH PELOLOSAN DALAM UPAYA PENANGKAPAN KEPITING BAKAU (Scylla serrata) RAMAH LINGKUNGAN Fitri, Aristi Dian Purnama Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kurohman, Faik Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jayanto, Bogi Budi Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Hapsari, Trisnani Dwi Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Husni, Iqbal A. Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Prihantoko, Kukuh E. Departemen Perikanan Tangkap Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Bubu Celah pelolosan; Kepiting bakau (Scylla serrata); Perairan Rembang Peraturan Menteri Kelautan Perikanan RI nomor 1 Tahun 2015 menetapkan ukuran lebar karapas untuk Kepiting Bakau (Scylla serrata) layak tangkap minimal 15 cm. Konstruksi trap yang digunakan untuk menangkap Scylla serrata di perairan Rembang memberikan peluang tertangkapnya stadia juvenille (< 10 cm CW). Trap dengan inovasi celah pelolosan diasumsikan dapat meloloskan Scylla serrata stadia juvenille. Desain celah pelolosan berbentuk segi empat terletak sepanjang bagian sisi bawah trap dengan ukuran tinggi 3 cm, memberikan hasil tangkapan Scylla serrata yang terkecil berukuran lebar karapas rata-rata 8,3 cm dibandingkan tanpa celah pelolosan dengan ukuran terkecil lebar karapas rata-rata 5,3 cm. Tertangkapnya Scylla serrata dengan desain trap bercelah pelolosan < 10 cm CW (stadia juvenille) mengindikasikan bahwa populasi biota tersebut di perairan Rembang berukuran kecil pada saat dilakukannya penelitian pada bulan April sampai dengan Juni 2016.  Regulation of the Minister of Marine and Fisheries of the Republic of Indonesia No. 1 / 2015 set the legal size of Mud crab (Scylla serrata) at least 15 cm carapace width. The trap construction used to capture Scylla serrata in Rembang waters provides an opportunity for capturing juvenile stadia (<10 cm carapace width/CW). The innovation of trap with the escape gap is assumed to pass Scylla serrata juvenille stadia. The design escape gap of a rectangular is located along the underside of the trap with a height of 3 cm, giving the smallest Scylla serrata catches the width of an average carapace by 8.3 cm compared with no escape passes with the smallest size of the average carapace width of 5.3 cm. The capture of Scylla serrata with the trap design of a 10 cm CW (juvenile stadia) trap indicates that the biota population in Rembang waters is small in the case of a study in April to June 2016.     Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16819 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22307 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190727 2019 eng " 2549-0885 1858-4748 dc TINGKAT KERAMAHAN LINGKUNGAN ALAT TANGKAP BAGAN DI PERAIRAN OESAPA TELUK KUPANG, NUSA TENGGARA TIMUR (Level of Environmental Fishing gears on Oesapa Waters of Kupang, East Nusa Tenggara) Surbakti, Joi Alfreddi Program Studi Teknik Budidaya Perikanan, Jurusan Perikanan dan Kelautan, Politeknik Pertanian Negeri Kupang https://Politanikoe.ac.id Sir, Rikka Welhelmina Program Studi Teknik Budidaya Perikanan, Jurusan Perikanan dan Kelautan, Politeknik Pertanian Negeri Kupang Analisis Alat Penangkap Ikan; Code of Conduct of Responsible Fisheries (CCRF);Teluk Kupang   Pengelolaan sumberdaya ikan sangat erat kaitannya dengan pengelolaan operasi penangkapan ikan dan sasaran penangkapan ikan yang dilakukan. Perairan Oesapa merupakan lokasi kegiatan penangkapan ikan yang ada di Teluk kupang Provinsi Nusa Tenggara Timur. Tujuan penelitian ini adalah menganalisis unit penangkapan yang sesuai dengan Code of Conduct Responsible for Fisheries (CCRF) di Perairan Oesapa Teluk Kupang. Metode penelitian yang digunakan adalah metode deskriptif dengan teknik sampling quota sampling, pada bulan Juni-November  2016 . Rentang nilai 4 kategori alat tangkap ramah lingkungan alat tanggap yang dijadikan sampling, yaitu nilai 1 – 9 diaktegorikan sangat tidak ramah lingkungan, nilai 10 – 18 dikategorikan tidak ramah lingkungan, nilai 19 – 27 dikategorikan ramah lingkungan, dan nilai 28 – 36 dikategorikan sangat ramah lingkungan. Hasil yang dipereroleh dari penelitian ini yaitu alat tangkap yang masuk kategori sangat ramah 31,37   Fish resource management is very closely related to the management of fishing operations and fishing targets. Oesapa waters are the location of fishing activities in Teluk Kupang, East Nusa Tenggara Province. The purpose of this study was to analyze capture units in accordance with the Code of Conduct Responsible for Fisheries (CCRF) in the Oesapa Waters of Kupang. The research method used was descriptive method with quota sampling technique, in June-November 2016. The range of values for the 4 categories of environmentally friendly fishing gear for the response being sampled, namely the value of 1-9 categorized as very environmentally unfriendly, the value of 10-18 is categorized as environmentally unfriendly, the value of 19-27 is categorized as environmentally friendly, and the value 28-36 is very friendly environment. The results obtained from this study are fishing gear that is in the very friendly category 31.37 Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22307 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/22307/60520 Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6837 2025-04-26T12:53:30Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc Analysis of Purchasing Desicion to Softbone Milkfish at Seller Center of Special Gift in Semarang City Wijayanto, Dian Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Widowati, Lestari Lakhsmi Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro At the present, people is more like a softbone milkfish. That is  push the growth of  the Pandanaran Area as the seller center of special gift from Semarang. Marketing research would be done to increase understanding of consumers characteristics and to develop business of softbone milkfish, including the factors that influenced a consumers to choose a store and to buy softbone  milkfish products. This research aims to assess the influence level of decisions factors to buy and  also to scan competition of softbone milkfish sellers  at  the Pandanaran Area in Semarang. The research proved that the image and positioning “Bandeng Juwana” is very high (the most popular) as special gift of Semarang. The most decision  factor which influenced a selection of stores was taste (28%), and then followed by texture (10%), colour (10%), price (8%), packaging (7%), and store image (7 %). “Bandeng Juwana” have strength on an aspects of physical product, especially in taste and price (reasonable price), while”Bandeng Presto” have strength on a service aspects and building design. “Bandeng Bonafid” has strength on   the speed of service. The results proved that “Bandeng Juwana” would become the first choice of consumers, both before and after the process of purchasing (repurchased order). Consumers choice index were 3.74 for “Bandeng Juwana”, 3.72 for “Bandeng Presto” and 3.35 for “Bandeng Bonafid”.   Key words:softbone milkfish, consumers want index, consumers choice index Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6837 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21398 2018-12-10T11:54:40Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/78412 2026-04-01T08:27:57Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Adiyanto, Fajar Jenderal Soedirman University https://orcid.org/0000-0001-8018-2315 Hartono, Sugeng Putera, I Gede Suweda Anggana Wijayanti, Siti Oftafia Choirunnisa, Amanda Joleony Ikan sebelah (Psettodes erumei) merupakan ikan demersal bernilai ekonomi penting dan berperan signifikan dalam produksi perikanan di Cilacap. Studi ini bertujuan untuk mendeskripsikan secara rinci morfologi dan meristik ikan sebelah hasil tangkapan nelayan lokal selama Mei-Agustus 2025, menggunakan alat bottom gillnet dan trammel net. Urgensi penelitian ini terletak pada minimnya informasi tentang karakteristik ikan sebelah di Cilacap yang berpotensi mendukung validasi taksonomi, serta dasar kebijakan pengelolaan dan konservasi sumber daya ikan demersal. Parameter morfologi yang diamati meliputi bentuk tubuh, posisi mulut, letak mata, bentuk sirip, serta rasio morfometrik utama dengan analisis deskriptif, sedangkan karakter meristik mencakup jumlah jari-jari sirip dorsal, anal, dan pektoral berbasis statistik kuantitatif. Hasil penelitian menunjukkan bahwa ikan sebelah memiliki tubuh pipih asimetris dengan kedua mata terletak pada sisi kiri tubuh, mulut terminal dengan bentuk agak serong, serta sirip dorsal memanjang dari atas mata hingga pangkal sirip kaudal. Ciri khas lain adalah warna tubuh bagian atas coklat keabu-abuan dengan bercak gelap tidak beraturan, sedangkan bagian bawah berwarna putih pucat. Rasio panjang standar terhadap panjang total berkisar antara 0,78–0,82, sedangkan tinggi tubuh terhadap panjang total sebesar 0,45–0,50. Jumlah jari-jari sirip dorsal tercatat 60–70, sirip anal 45–55, dan sirip pektoral 10–12. Kesimpulan dari penelitian ini adalah bahwa ikan sebelah di perairan Cilacap memiliki karakter morfologi yang konsisten dengan deskripsi umum spesies Psettodes erumei, namun terdapat variasi pada pola warna dan proporsi tubuh yang diduga dipengaruhi oleh kondisi habitat lokal. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/78412 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/21002 2020-04-17T19:28:26Z saintek:RSA

nmb a2200000Iu 4500 "180215 2018 eng " 2549-0885 1858-4748 dc PENGARUH TEPUNG TELUR AYAM AFKIR PADA PAKAN BUATAN YANG BERPROBIOTIK TERHADAP EFISIENSI PEMANFAATAN PAKAN, PERTUMBUHAN DAN KELULUSHIDUPAN LELE DUMBO (Clarias gariepinus). (The Effect Of Chicken Eggs Rejects Powder In Artificial Feed With Added Probiotic On Efficiency Feed Utilization, Growth And Survival Rate Of Dumbo Catfish (Clarias Gariepinus)) Suminto, Suminto Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Susilowati, Titik Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Wibowo, Bambang Argo Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Chilmawati, Diana Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Pakan ikan lele; Telur ayam afkir; Clarias gariepinus; Pertumbuhan; Kelulushidupan Pengembangan budidaya ikan lele, Clarias gariepinus sering terjadi kendala dengan biaya pakan yang terlalu tinggi (60-70% dari biaya produksi). Barangkali, penggunaan bahan baku lokal seperti pemanfaatan tepung telur ayam yang nilai nutrisinya tinggi, mudah didapat, dan murah harganya merupakan salah satu solusinya. Tujuan penelitian ini adalah untuk mengkaji dan mengetahui pengaruh penambahan tepung telur ayam afkir dalam pakan buatan yang berprobiotik terhadap efisiensi pemanfaatan pakan, pertumbuhan dan kelulushidupan ikan lele dumbo (C. gariepinus). Penelitian ini menggunakan metode eksperimental dengan rancangan acak lengkap (RAL) yang menggunakan  4 perlakuan dan masing-masing 3 kali kali ulangan. Perlakuan itu adalah pakan yang tanpa menggunakan tepung telur ayam afkir (Perlakuan A), pakan yang menggunakan tepung telur afkir masing-masing sebanyak 15%, 30%, dan 45% sebagai Perlakuan B, C, dan D. Ikan uji  bibit lele dumbo (C. gariepinus) yang ditebar mempunyai bobot rerata 2.04±0.05 g dengan kepadatan 1 ekor/L yang dipelihara selama 42 hari. Variabel data yang diukur meliputi Tingkat Konsumsi Pakan (TKP), Efisiensi Pemanfaatan Pakan (EPP), Feed Convertion Ratio (FCR), Protein Efficiency Ratio (PER), Relative Growth Rate (RGR), dan Survival Rate (SR). Hasil penelitian ditunjukkan bahwa penggunaan tepung telur ayam afkir pada pakan buatan memberikan pengaruh yang nyata (p < 0.05) terhadap TKP, EPP, FCR, PER, dan RGR, tetapi tidak berpengaruh nyata (P≥0,05) terhadap SR. Perlakuan dengan penambahan tepung telur ayam afkir sebanyak 30% (Perlakuan C) memberikan nilai terbaik untuik TKP sebesar 146,87%, EPP sebesar 88,77%, PER sebesar 2,61% dan RGR sebesar 7,65%/hari dari perlakuan lainnya. Monitoring nilai kualitas air pada media pemeliharaan telah menunjukkan bahwa pada kisaran yang layak untuk pemeliharaan ikan uji.   Catfish cultivation development, Clarias gariepinus often occur constraints with the high cost of feed  (60-70% of the production cost). Perhaps, the use of local raw materials such as the utilization of rejected chicken egg with high nutritional value, easy to obtain, and cheap price is one of the solution. The purpose of this research was to know the effect of addition of rejected chicken egg  powder inprobiotized artificial feed on the efficiency of feed utilization, growth and survival rate of catfish, C. gariepinus. This study was used an experimental method with completely randomized design (RAL) by using 4 treatments and each of them 3 replications. The treatments were feed without use of rejected chicken egg powder  (Treatment A), feed using 15%, 30%, and 45% of powder  meals of rejected chicken egg  as treatment B, C, and D, respectively. Catfish, C. gariepinus seeds were stocked with a mean weight of 2.04 ± 0.05 g with a density of 1 tail / L and cultured  for 42 days. The data variables measured were  Total of Feed Consumption (TFC), Feed Utilization Efficiency (FUE), Feed Conversion Ratio (FCR), Protein Efficiency Ratio (PER), Relative Growth Rate (RGR), and Survival Rate (SR). The results showed that the use of chicken egg starch in artificial feed gave a real effect (p <0.05) on TFC, FUE, FCR, PER, and RGR, but no significant effect (P≥0,05) on SR. Treatment with the addition of 30% chicken meal (Treatment C) had the best value for TFC at 146.87%, the FUE of 88.77%, the PER of 2.61%  and the RGR of 7.65% / day than of the another treatments. Monitoring of  water quality values on maintenance media has shown that at a reasonable range for the maintenance of catfish culture. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21002 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/24073 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191230 2019 eng " 2549-0885 1858-4748 dc PENGEMBANGAN SEKTOR PERIKANAN MENUJU HILIRISASI INDUSTRI UNTUK MENDUKUNG PEMBANGUNAN EKONOMI WILAYAH KABUPATEN SERDANG BEDAGAI PROPINSI SUMATERA UTARA Nainggolan, Hotden Leonardo Universitas HKBP Nommensen Medan https://uhn.ac.id/pertanian/ http://orcid.org/0000-0002-7900-2054 Tampubolon, Jongkers Universitas HKBP Nommensen Medan Ginting, Albina Universitas HKBP Nommensen Medan ekonomi wilayah; hilirisasi; sektor perikanan; pengembangan Sektor perikanan berperan strategis dalam pembangunan, karena berperan menyerap tenaga kerja, penghasil bahan pangan, bahan baku industri dan sumber devisa bagi negera. Hal ini akan tercapai jika sumber daya perikanan dikelola dengan baik sehingga menghasilkan produk yang bernilai tambah dan berdaya saing tinggi. Penelitian ini bertujuan untuk menganalisis pengembangan sektor perikanan menuju hilirisasi industri untuk mendukung pembangunan ekonomi wilayah di Serdang Bedagai. Penelitian dilakukan di Kecamatan Tanjung Beringin, Teluk Mengkudu dan Pantai Cermin dengan jumlah sampel 30 responden.  Penelitian  ini menggunakan data primer dan data sekunder yang dianalisis dengan Location Quotient (LQ), metode deskriptif dan analisis SWOT. Berdasarkan hasil penelitian disimpulkan; a)  Kecamatan Bandar Khalifah, Teluk Mengkudu, Pantai Cermin dan Kecamatan Tanjung Beringin merupakan wilayah pengembangan sektor perikanan dan hilirisasi industri dalam rangka pengembangan ekonomi wilayah, b) Teknologi budidaya dan penangkapan ikan, dukungan sarana dan prasarana serta modal usaha merupakan kendala utama pengembangan sektor perikanan menuju proses hilirisasi industri, c) Potensi sumber daya perikanan, kebijakan pemerintah merupakan faktor pendukung pengembangan sektor perikanan dan hilirisisasi industri, d) Strategi industrialisasi sektor perikanan dapat dilakukan dengan cara; i) meningkatkan populasi UMKM, ii) peningkatan nilai tambah, iii) insentif fiskal bagi UMKM, iv) meningkatkan daya saing produk dan penguatan rantai pasok, v) pembangunan infrastruktur. Berdasarkan kesimpulan disarankan agar pemerintah; a)  memberikan pelatihan/ penyuluhan kepada nelayan tentang peningkatan nilai tambah hasil perikanan, b)  melakukan diseminasi teknologi budidaya dan penangkapan ikan, serta menyediakan sarana dan prasarana serta bantuan modal usaha bagi nelayan, c) memberikan penyuluhan dan sosialisasi bagi nelayan tentang pemanfaatan sumber daya perikanan  berkelanjutan, d) mempermudah akses permodalan dan pasar produk hasil perikanan serta membantu  meningkatkan daya saing dan penguatan rantai pasok sektor perikanan.   The fisheries sector plays a strategic role in development, because it has the role of absorbing labor, producing food, industrial raw materials and sources of foreign exchange for the country. This will be achieved if the fisheries resources are well managed so as to produce products that produce added value and are competitive. This study aims analyzed the development of the fisheries sector towards the downstream industry to support the economic development of the region in Serdang Bedagai. The study was conducted in Tanjung Beringin Sub-district, Teluk Mengkudu and Pantai Cermin with a sample of 30 respondents. This study uses primary data and secondary data analyzed by Location Quotient (LQ), descriptive methods and SWOT analysis. Based on the results of the study concluded; a) Bandar Khalifah Sub-district, Teluk Mengkudu, Pantai Cermin and Tanjung Beringin Sub-district are the right areas for the development of the fisheries sector and downstream industries in the context of regional economic development, b) Technology for fishing and fishing, supporting facilities and infrastructure and capital business is the main obstacle to the development of the fisheries sector towards the downstream process of the industry, c) the potential of fisheries resources, government policy is a supporting factor for the development of the fisheries sector and the industrialization of the industry, d) the strategy of industrialization of the fisheries sector;  i) increasing the micro small and medium enterprisess population, ii) increasing added value, iii) providing fiscal incentives for micro small and medium enterprisess, iv) increasing competitiveness and strengthening the supply chain, v) infrastructure development. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24073 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/24073/67490 Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6888 2025-04-26T12:43:33Z saintek:RSA

nmb a2200000Iu 4500 "080822 2008 eng " 2549-0885 1858-4748 dc KAJIAN TINGKAT SAPROBITAS DI MUARA SUNGAI MORODEMAK PADA SAAT PASANG DAN SURUT Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Muara  sungai  mengalami  fluktuasi  salinitas  yang  disebabkan  oleh  pasang  surut  air  laut.  Fitoplankton merupakan produsen primer  yang mampu membentuk zat organik dari zat anorganik.  Fitoplankton dapat melakukan fotosintesis yang menghasilkan karbohidrat dan oksigen serta merupakan awal dari rantai makanan di perairan. Kondisi ekologis di daerah muara sungai Morodemak diperkirakan akan semakin menurun akibat meningkatnya pemanfaatan wilayah pantai secara intensif. Kapal-kapal dan bagan apung banyak bersandar di muara sungai ini. Tambak-tambak intensif juga telah banyak  dibangun. Keadaan ini diduga menyebabkan menurunnya  kualitas  lingkungan  muara  sungai   Morodemak.  Penelitian  ini  dilakukan  untuk  mengkaji bagaimana  kondisi  lingkungan  muara  sungai  Morodemak.  Pengamatan  dilakukan  berdasarkan  analisis  SI (Saprobik Indeks) dan TSI (Tropik Saprobik Indeks) untuk mengetahui sejauh mana tingkat pencemaran yang terjadi. Materi yang digunakan dalam penelitian ini adalah fitoplankton yang berada di perairan Muara Sungai Morodemak berikut parameter fisika dan kimia. Kelimpahan fitoplankton pada Muara Sungai Morodemak pada waktu pasang adalah 35.415 Ind/L dengan 16 genera dan pada waktu surut 27.684 Ind/L dengan 15 genera. Nilai SI pada saat pasang adalah 1,18 dan 1,00 pada saat surut serta nilai TSI 1,32 pada saat pasang dan 1,34 pada saat surut. Nilai tersebut menunjukkan bahwa pada saat pasang tingkat pencemaran di muara lebih tinggi dibandingkan pada saat surut. Nilai SI dan TSI fitoplankton dapat diketahui bahwa kondisi  perairan muara sungai Morodemak tercemar sedang sampai ringan. Tingkat pencemaran yang lebih  tinggi pada saat pasang dibandingkan pada saat surut tersebut mengindikasikan bahwa  parameter-parameter pencemar lebih berasal dari  kegiatan-kegiatan  di  laut  dibandingkan  kegiatan-kegiatan  di  darat,  seperti  bersandarnya  kapal-kapal penangkap ikan dan bagan apung di muara sungai.   Kata kunci : Saprobitas, Muara sungai, Pasang Surut Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6888 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/369 2014-05-19T10:45:55Z saintek:RSA

nmb a2200000Iu 4500 "110719 2011 eng " 2549-0885 1858-4748 dc KAPASITAS PENANGKAPAN KAPAL PUKAT CINCIN DI PELABUHAN PERIKANAN NUSANTARA PEKALONGAN Musyafak, musyafak Rosyiod, Abdul staf pengajar PS. PSP, Jurusan perikanan FPIK Suherman, Agus staf pengajar PS PSP, Jurusan Perikanan FPIK UNDIP ABSTRAK Isu dan permasalahan tentang kapasitas penangkapan (fishing capacity) telah menjadi hal penting bagi pengelolaan perikanan tangkap yang bertanggung jawab dan berkelanjutan. Penelitian ini bertujuan untuk mengetahui efisiensi perikanan Pukat Cincin dalam jangka panjang (antar tahun) maupun jangka pendek (antar kapal) serta mengestimasi proyeksi perbaikan efisiensi kapal-kapal pukat cincin di Pelabuhan Perikanan Nusantara (PPN) Pekalongan. Penelitian ini telah dilaksanakan pada bulan November 2007-Januari 2008 di PPN Pekalongan, Jawa Tengah. Metode penelitian yang digunakan adalah deskriptif yang bersifat studi kasus. Analisis data menggunakan metode Data Envelopment Analysis (DEA) yang berorientasi pada pendekatan input dan output. Hasil penelitian menunjukkan bahwa telah terjadi kondisi kapasitas berlebih (excess capacity) pada perikanan Pukat Cincin di PPN Pekalongan baik dalam jangka panjang (10 tahun) secara agregat maupun dalam jangka pendek pada kapal-kapal Pukat Cincin. Kata Kunci : Kapasitas penangkapan, Efisiensi, Kapasitas berlebih (excess capacity), Pukat cincin ABSTRACT Issue and problem of fishing capacity had become the important thing for management capture fishery which responsibility and continuity. This research is used for a long time and for short time, and eficiency repair project estimation of Purse seine ship in Pekalongan Fishing Port (PFP). This research had done at November 2007-January 2008. In Pekalongan Fishing Port, Central Java. The research method in used is descriptive method with study of case. The data analyse is using Data Envelopment Analysis (DEA) Method which orientation to input and output. The output of this research explain the excess capacity of Purse seine fishery in PFP not only for a long time (ten years) but also for a short time in Purse seine ship. Keyword : Fishing capacity, Eficiency, Excess capacity, Purse seine Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/369 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49458 2025-01-08T02:19:23Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/24114 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200806 2020 eng " 2549-0885 1858-4748 dc RESPONS TINGKAH LAKU CUMI-CUMI (Uroteuthis duvaucelli, Orbigny 1835) TERHADAP WARNA DAN INTENSITAS CAHAYA YANG BERBEDA (Behavior Response of Squid Uroteuthis duvaucelli, Orbigny 1835 to Different Light Color and Intensity) Tirtana, Denta Program Studi Teknologi Perikanan Laut, Departemen Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Riyanto, Mochammad Program Studi Teknologi Perikanan Laut, Departemen Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Wisudo, Sugeng Hari Program Studi Teknologi Perikanan Laut, Departemen Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor Susanto, Adi Jurusan Perikanan, Fakultas Pertanian, Universitas Sultan Ageng Tirtayasa Cephalopoda; LED; pigmen hitam; jetting; intensitas cahaya Cumi-cumi merupakan salah satu target utama dalam perikanan dengan menggunakan cahaya (light fishing) di Indonesia. Penangkapan cumi-cumi mengandalkan indera penglihatan berupa rangsangan cahaya agar cumi-cumi mendekati alat tangkap. Respons penerimaan cahaya oleh mata cumi-cumi dipengaruhi oleh berbagai faktor diantaranya warna dan intensitas. Penelitian ini bertujuan untuk menetukan respons tingkah laku dan adaptasi mata cumi-cumi dengan perbedaan warna yakni biru, putih dan merah yang intensitas rendah (1,1 x 10-4 – 2,3 x 10-4 W/cm2), sedang (9,6 x 10-4 – 2,0 x 10-3 W/cm2) dan tinggi (9,4 x 10-3 – 1,2 x 10-2 W/cm2). Adaptasi retina cumi-cumi dilakukan dengan pendekatan histologi untuk setiap perlakuan. Respons tingkah laku cumi-cumi dilakukan dengan pengamatan 4-40 ekor cumi-cumi berukuran 4-10,5 cm pada bak perlakuan. Respons tingkah laku yang diamati adalah preferensi zona, jumlah jetting dan Nearest Neighbor Distance (NND). Adaptasi retina mata cumi-cumi yang memiliki nilai rasio tertinggi adalah lampu warna biru dengan 74,54%. Cumi-cumi berada pada zona redup dihampir semua perlakuan, kecuali pada lampu warna biru dengan intensitas rendah cumi-cumi berada pada zona terang. Intensitas yang ditambahkan membuat jumlah jetting pada semua perlakuan bertambah. Jarak antar individu pada lampu biru menyebabkan semakin menjauh, sementara pada lampu putih dam merah jarak antar individu mendekat pada intensitas sedang.   Squid is one of main targets of the light fishing in Indonesia. The squid fishing relies on the sense of sight i.e. light stimulus so that the squid comes near to the fishing gear. Response of the light reception by squid eyes are affected by many factors, i.e. color and intensity. This study aimed to determine response of fish behavior and eye adaptation of the squid with the difference of color, i.e. blue, white, and red that had low intensity (1.1 x 10-4 – 2.3 x 10-4 W/cm2), medium intensity (9.6 x 10-4 – 2.0 x 10-3 W/cm2) and high intensity (9.4 x 10-3 – 1.2 x 10-2 W/cm2). To know the retina adaptation of squid was observed by histology approach for every treatments. To know response of squid behavior was observed with 4-40 squids on the size 4-10.5 cm on the treatment tub. Response of squid behavior observed were zone prefence, the number of jetting and Nearest Neighbor Distance (NND). The retina adaptation of squid that had the highest ratio value was blue lamp with 74.54%. The squid was on the dim zone for almost of treatment, except on the blue lamp with low intensity (the squid on the clear zone). The intensity addition increased the number of jetting on the all of treatment. The gap inter-individu on the blue lamp caused the individu far away, the gap inter-individu on the white lamp caused the individu closer in the medium intensity.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24114 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8111 2015-06-29T15:00:39Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc UJI BIOLOGIS EKSTRAK KASAR DAN ISOLAT ALBUMIN IKAN GABUS (Test the Biological Quality of Crude Extract and Isolate Albumin Gabus Fish (Ophiocephalus striatus) Towards Body Weight and Albumin Serum Content of Murine Rodents) Nugroho, Matheus Program Studi Teknologi Hasil Perikanan Fakultas Pertanian Universitas Yudharta Pasuruan Tujuan penelitian ini untuk menentukan kualitas biologis ekstrak kasar dan isolat albumin ikan gabus yang optimal terhadap berat badan dan kadar serum albumin tikus mencit. Analisa data penelitian ini adalah uji kualitas biologis ekstrak kasar dan isolat albumin pada tikus mencit, perbedaan hasil tiap perlakuannya dianalisa dengan Rancangan Acak Kelompok (RAK) faktor tunggal. Hasil terbaik uji kualitas biologis ekstrak albumin kasar dan isolat albumin pada tikus Mencit (Mus musculus L.) adalah berat badan tertinggi 28.48 g, pada mencit yang diberi perlakuan ekstrak albumin kasar. Kadar albumin serum tertinggi 2.22 g dl-1 pada mencit yang diberi perlakuan ekstrak albumin kasar. Kata kunci : ikan gabus (Ophiocephalus striatus), kualitas biologis ekstrak kasar dan isolat albumin, tikus mencit (Mus musculus L.)   The objective of this study to determine the biological quality of crude extracts and albumin isolates of gabus fish that optimal towards body weight and albumin serum content of murine rodents. Analysis of data of this study is to test the biological quality of crude extract and isolate albumin in rats mice, differences in the results of each treatment group were analyzed by Randomized Design (RAK) a single factor. The best results test of the biological quality of crude albumin extract and albumin isolates in murine rodents (Mus musculus L.) is the highest weight 28.48 g, in rodent treated crude albumin extract. The highest contents of serum albumin 2.22 g d-1 in rodent treated crude albumin extract. Key words : gabus fish (Ophiocephalus striatus), the biological quality of crude extract and isolate albumin, murine rodents (Mus musculus L.) Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8111 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/378 2014-05-19T10:45:55Z saintek:RSA

nmb a2200000Iu 4500 "110719 2011 eng " 2549-0885 1858-4748 dc KUALITAS PERAIRAN SUNGAI BANGER PEKALONGAN BERDASARKAN INDIKATOR BIOLOGIS Rudiyanti, Siti ABSTRAK Pembuangan limbah pabrik/industri, pertanian, maupun limbah domestik dapat menyebabkan degradasi kualitas air. Kualitas air dapat ditentukan melalui studi analisis biologi menggunakan biota akuatik fitoplankton sebagai bioindikator. Penelitian dilaksanakan di sungai Banger Pekalongan pada bulan Agustus - September 2006, bertujuan menilai kualitas perairan berdasarkan indikator biologis. Stasiun penelitian berjumlah 3 stasiun, stasiun A adalah daerah pangkal sungai Banger yang merupakan percabangan dan mendapatkan masukan air dari sungai Pekalongan, dimana di sekitar DAS Pekalongan terdapat aktivitas industri tekstil skala rumah tangga, stasiun B merupakan daerah pembuangan limbah beberapa industri tekstil, dan stasiun C adalah daerah sesudah area industri tekstil. Parameter biologi yang diukur meliputi Indeks Keanekaragaman (H`), Indeks Kemerataan (E), dan Koefisien Saprobik (X). Secara umum proporsi terbesar penyusun komunitas fitoplankton adalah kelas Bacillariophyceae dan Chlorophyceae. Kelimpahan individu fitoplankton berkisar antara 8535 - 22.972 individu/L. Indeks keanekaragaman berkisar antara 1,945 - 2,540 dan koefisien saprobik berkisar antara 0,17 - 1,31. Berdasarkan pendekatan indeks keanekaragaman dan koefisien saprobik, tingkat pencemaran dan kualitas perairan sungai Banger termasuk dalam kategori tercemar ringan sampai sedang. Kata kunci : Fitoplankton, indeks keanekaragaman, koefisien saprobik, kualitas air ABSTRACT Disposal wastes from industrial, agricultural and domestic could degrade water quality. Water quality can be assessed by biological analysis using aquatic biota as a bio-indicator. Research took place at Banger River Pekalongan on August to September 2006, with the aims to examine water quality based on biological indicators. There are three research stations : station A is at the upland of the river where intake waters is from a branch of Pekalongan river in catchment’s areas of home based textile industries. Station B is in surrounding area where the textile industries dispose their waste; and station C is in the following area after the textile industries. Biological parameters that be calculated include diversity index, evenness index and saprobic coefficient. In general the biggest proportion of phytoplankton community is from class of Bacillariophyceae and Chlorophyceae. Phytoplankton individual abundance is around 8535 to 22.972 indv/l. Diversity index is around 1.945 to 2.540 and saprobic coefficient is 0.17 to 1.31. Based on diversity index and saprobic coefficient approaches, pollution level and water quality of the Banger River is categorized in little to middle pollution. Key Word : Phytoplankton, diversity index, saprobic coefficient, water quality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/378 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/44509 2025-04-15T07:52:27Z saintek:RSA

nmb a2200000Iu 4500 "221230 2022 eng " 2549-0885 1858-4748 dc KEANEKARAGAMAN BAKTERI PADA RUMPUT LAUT (Kappaphicus alvarezii) DI PERAIRAN PANTAI AMAL Ihsan, Burhanuddin Program Studi Akuakultur, Universitas Borneo Tarakan https://orcid.org/0000-0002-1184-8096 Yulma, Yulma Retnaningrum, Endah bakteri;identifikasi; rumput laut; Tarakan Rumput laut (Kappaphycus alvarezii) merupakan komoditas penting perikanan yang memiliki nilai ekonomi cukup tinggi dan menjadi salah satu sumber devisa negara serta sumber pendapatan bagi masyarakat pesisir. Selain itu rumput laut banyak digunakan sebagai bahan dasar industri makanan, farmasi dan energi. Namun produksi rumput laut kota Tarakan pada tahun 2019 mengalami penurunan dari 159.468 ton menjadi 152.76 ton. Salah satu yang menyebabkan terjadinya penurunan produksi rumput laut adalah serangan penyakit  ice-ice yang disebabkan oleh bakteri. Tujuan dari penelitian untuk mengetahui keanekaragaman bakteri yang terdapat pada rumput laut di perairan Pantai Amal Tarakan. Isolasi bakteri dilakukan dengan menggunakan metode stread plat pada media TCBS (thiosulphate citrate bile salt sucrose) dan TSA (thiosulphate sucrosa agar). Sampel rumput laut dihaluskan lalu diambil sebanyak 5 gram kemudian dimasukkan ke dalam cawan petri yang berisi media TCBS dan TSA. Selanjutnya diinkubasi pada suhu 370C atau suhu ruangan selama 24 jam. Identifikasi bakteri dilakukan dengan mengacu pada buku Bergey’s Manual of Determinatif Bacteriology dan Manual For the Identification of Medical Bacteria dengan melakukan uji biokimia yang meliputi; Uji Pewarnaan Gram, Test Oksidase, Katalase, O/F (Oksidasi/Fermentasi), glukosa, motility, Produksi asam dari karbohidrat (D-Glukosa dan D-mannitol), lysin, urea, ornithin dan methil red. Hasil penelitian menunjukkan bahwa terdapat Keanekaragaman bakteri pada rumput laut (Kappaphycus alvarezii) di perairan Pantai Amal Tarakan diantaranya Corynebacterium, Acinetobacter, Bacillus, Pseudomonas dan Vibrio yang berpotensi menyebabkan penyakit ice-ice. Rekomendasi: Perlu menjaga keseimbangan lingkungan dengan memperhatikan parameter kualitas air, agar rumput laut tidak stres, sebab infeksi bakteri bersifat sekunder.   Seaweed (Kappaphycus alvarezii) is an important fishery commodities that has a high economic value and is a source of foreign exchange and a source of income for coastal communities. In addition, seaweed is widely used as a basic material for the food, pharmaceutical and energy industries. However, Tarakan's seaweed production in 2019 decreased from 159.468 tons to 152.576 tons. One of the causes of a decrease in seaweed production is the attack of ice-ice disease caused by bacteria. The purpose of this study was to determine the diversity of bacteria found in seaweed in the waters of Amal Beach, Tarakan. Bacterial isolation was carried out using TCBS (thiosulphate citrate bile salt sucrosa) and TSA (thiosulphate sucrosa agar) media. Seaweed samples were mashed and then taken as much as 5 grams and then put into a petri dish containing TCBS and TSA media. Then incubated at 37°C or room temperature for 24 hours. Identification of bacteria is carried out by referring to the book Bergey's Manual of Determinative Bacteriology and Manual For the Identification of Medical Bacteria by conducting biochemical  tests which include; Gram stain test, oxidase test, catalase, O/F (Oxidation-Fermentation), glucose, motility, acid production from carbohydrates (D-glucose and D-mannitol), lysine, urea, ornithine and methyl red. The results showed that there was a diversity of bacteria in seaweed (Kappaphycus alvarezii) in the waters of the Tarakan Amal Coast including Corynebacterium, Acinetobacter, Bacillus, Pseudomonas and Vibrio which have the potential to cause ice-ice disease. Recommendation: It is necessary to maintain environmental balance by paying attention to water quality parameters, so that seaweed is not stressed, because bacterial infections are secondary. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-02-10 02:56:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/44509 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 4 (2022): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/44509/138216 Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/36692 2021-04-21T11:21:17Z saintek:RSA

nmb a2200000Iu 4500 "201031 2020 eng " 2549-0885 1858-4748 dc BIOLOGICAL ASPECTS, CATCHING ASPECTS AND FISHING GROUND OF EASTERN LITTLE TUNA OR KAWAKAWA(Euthynnusaffinis (Cantor, 1849)) BASED ON THE FISHING GEAR AT WPP 572 Arnenda, Gussasta Levi LOKA RISET PERIKANAN TUNA Setyadji, Bram Research Institute of Tuna Fisheries Wiratmini, Ngurah Intan Udayana University Wijana, I Made Sara Udayana University Biology; fishing gear; fishing ground; Eastern little tuna Eastern little tuna (Euthynnus affinis) is the main catch in WPP572. The caught E. affinis are still in their infancy. This research aims is to know the biological aspects, the fishing aspects and the distribution of the fishing gear per fishing gear, as a consideration for sustainable fisheries management. The research was carried out during the years 2019-2020. Taking samples for gonad observation was carried out by direct survey to the location in February, May, July and October 2019. The measurement of fish length was carried out in stratified random. Catching data were retrieved by requesting secondary data and interviews with related parties. The distribution of fishing grounds is mapped using the QGIS 3.4, the spatial distribution of catches is mapped. This study showed the size structure of E. affinis on purse seine, troll line and encircling gill netfishing gear from 16-55 cm FL, while on the boat/raft lift net it was 21-50 cmFL. These fish growth's is positive allometric on purse seine and encircling gillnet fishing gear, negative allometric on boat/raft lift net fishing gear, and isomeric on troll line. The sex ratio is in the ratio 1: 1.15 and balanced. Based on the maturity level, the gonads were mature in July and October and immature in February and May. Gonads ripened for the first time at a size of 42.032 cmFL. The distribution of the purse seine catchment areas at 3°-6°N and 93°-96°E, and 3°-6°S and 94°-95°E. Boat/raft lift net at 0°-3°S and 95° -101°E. Troll line 4°-6°N and 94°-95 E. Encircling gillnet 0°-2°S and 99°-101°E. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/36692 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8325 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc Optimalizatiom use of Seagrass Leafs Thalassia hemprichii As Natural Antioksidan Source Tristanto, Riki Program Studi Oseanografi FPIK Universitas Diponegoro Putri, Megawati Arsita Program Studi Pemanfaatan Sumberdaya Perairan FPIK Universitas Diponegoro Situmorang, Anggun P. Program Studi Budidaya Perairan FPIK Universitas Diponegoro Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan FPIK Universitas Diponegoro Seagrass is a wealth of marine resources, one of the ecosystems found in coastal areas, able to produce a variety of secondary metabolites, and one water plant that has important benefits that can replace natural source of antioxidants that seagrass (seagrass). Seagrasses are flowering plants (Angiospermae) who can adjust himself to life in the sea water. The purpose of this study was to determine the antioxidant potential in seagrass leaves. Extraction using maceration with the way the samples were stored by using the solvent n-hexane, ethyl acetate and methanol for each 1x24 hours after it evaporated with a vacuum rotary evaporimeter to obtain a crude extract, then extract tested by using antioxidant aktvitas diphenilpycrylhydrazil (DPPH). Antioxidant activity test carried out by the ability of the samples used in reducing the stable free radical diphenilpycrylhydrazil (DPPH). Three milliliters diphenilpycrylhydrazil (DPPH) as a positive control was weighed and added to methanol with a ratio of 1:3. An additional 2 mg of DPPH was diluted with 50 mL of methanol and added at each 1 mL to 3 mL of methanol at a concentration of 75 ppm, 125 ppm and 175 ppm. DPPH mixture is homogenized and rested for 30 minutes. Antioxidant activity assay on leaf Seagrass Thalassia hemprichii showed that the IC50 value of 25.98344501. This value indicates that the samples tested were able to inhibit the free radicals are very strong. Samples containing great potential in the utilization as a source of natural antioxidants  Keywords : Extraction, Maceration, Antioxidant, DPPH Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8325 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2070 2014-04-25T17:01:16Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Liming by using CaCO3 for maintaining the quality of soil brackish water pond and the growth of seaweed Gracilaria sp. Arini, Endang Program Studi Budidaya Perairan, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Semarang The intensive of shrimp culture in pond without applying of aquaculture management would be affected on acid soil doe to organic matter sources from the food and result of metabolic from the cultivar. Effort to maintenance soil quality can be occurred by using agriculture lime stone (CaCO3) and seaweed (Gracilaria sp) can be reared  in the processes. The aims of the research were to know several doses of liming on the growth and the daily growth rate of Gracilaria sp. The research design applied was completely random design with four treatments and four repetitions. The following treatments were A (without liming), B (0,02 g/m2 ), C (0,03 g/m2) and D (0,04 g/m2 ).Data analyzed by using anova and Duncan’s test. The results of the research were indicate that liming application was highly significant (P>0,01) on the growth and daily growth rate. The dose of 0,04 g/m2 gave a highest result, that is 11,298 g for the growth and 1,141%/day for the daily growth rate.   Key words : acid soil, liming, growth and Gracilaria sp. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2070 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/50417 2025-04-15T07:25:05Z saintek:RSA

nmb a2200000Iu 4500 "231029 2023 eng " 2549-0885 1858-4748 dc Comparison Of Carlson Trophic State Index In Jatibarang Reservoir Using Landsat 8 OLI and Sentinel-2A MSI Pratomo, Risdianto Adi Departement of Aquatic Resources Management, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Fisheries and Marine Sciences; Water Resources Management; Remote Sensing Jatibarang Reservoir is located in Semarang City and has fisheries potential so the condition of water quality is important to know. Water quality monitoring can be known by analyzing the trophic status. The purpose of this study was to determine the spatial description of water quality parameters including secchi disk transparency, total phosphorus and chlorophyll-a concentration and also the distribution of trophic status in Jatibarang Reservoir. The study used a descriptive analysis method using Landsat-8 OLI (Operational Land Imager) and Sentinel-2A MSI (Multi Spectral Index) satellite image data to determine trophic status and field data as accuracy test. Data collection was carried by 7 stations. Analysis of data accuracy using standard error method and trophic status using Carlson Index. The results obtained for each parameter in the Landsat-8 OLI image are brightness 0.30, total phosphorus 0.74 and chlorophyll-a 1.41 while the regression results for the Sentinel-2A MSI are brightness 0.29, total phosphorus 0, 17 and chlorophyll-a 0.60. Sentinel-2A MSI is better for estimating trophic status parameters than Landsat 8 OLI. The brightness field ranged from 0.22 to 0.32 meters, total phosphorus from 0.13 to 0.24 mgL-1 and chlorophyll-a ranged from 2.30 to 3.79 mgL-1. The value of Carlson's trophic status in Jatibarang Reservoir ranges from 58.76 to 63.21 which is included in the mild to moderate eutrophic fertility level. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-11-01 05:59:06 https://ejournal.undip.ac.id/index.php/saintek/article/view/50417 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 3 (2023): SAINTEK PERIKANAN eng Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33013 2021-11-30T12:01:20Z saintek:RSA

nmb a2200000Iu 4500 "210417 2021 eng " 2549-0885 1858-4748 dc PHYTOCHEMICAL SCREENING, TOTAL PHENOLIC CONTENT AND ANTIOXIDANT ACTIVITY OF TROPICAL BROWN MACROALGAE Padina pavonica HAUCK FROM KABUNG ISLAND, WEST KALIMANTAN Sofiana, Mega Sari Juane Marine Science Department, Faculty of Mathematics and Natural Sciences, Tanjungpura University, Indonesia Safitri, Ikha Marine Science Department, Faculty of Mathematics and Natural Sciences, Tanjungpura University, Indonesia Helena, Shifa Marine Science Department, Faculty of Mathematics and Natural Sciences, Tanjungpura University, Indonesia Warsidah, Warsidah Marine Science Department, Faculty of Mathematics and Natural Sciences, Tanjungpura University, Indonesia antioxidant; Padina pavonica; phenol; phytochemical Marine macroalgae are potential sources as carbohydrate alternative, food additive, and bioactive compounds with antioxidant activity. The biological activity is strongly influenced by the type and phenolic compounds concentration. Tropical brown algae Padina pavonica Hauck was found with a large abundance in Kabung Island, West Kalimantan. The objective of this study was to determine the phytochemical screening, total phenolic content, and antioxidant activity of P. pavonica Hauck extract. The phytochemical screening and determination of total phenolic compounds were carried out using two different solvents with ethanol and ethyl acetate. Whereas antioxidant activity was evaluated using the DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenger method with UV-vis spectrophotometer. The qualitative analysis of phytochemical constituents revealed the presence of alkaloids, steroids, flavonoids, phenols, and saponins. Furthermore, for total phenolic compounds, the ethanolic extract had a higher content (20.34 mgGAE/g) dry sample than ethyl acetate extract (7 mgGAE/g). The ethanolic extract also had a higher of potential antioxidant activity which IC50 was 144.47 ppm compared to ethyl acetate extract (IC50 was 191.98 ppm). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33013 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/33013/97519 Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9333 2015-10-27T11:42:39Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc PROGRAM PENDAMPINGAN KELOMPOK TANI “KARYA MINA MANDIRI” MANGUNHARJO DALAM RANGKA PENINGKATAN PENJUALAN DAN PROMOSI PRODUK HASIL OLAHAN MANGROVE Widyorini, Niniek Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang A’in, Churun Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Rudiyanti, Siti Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Purnomo, Pujiono Wahyu Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Sister Program for “Mina Karya Mandiri” Group to Improve Selling and Promotion Mangrove Processing Product     ABSTRAK   Kegiatan Pengabdian Masyarakat melalui program pendampingan kelompok tani dilaksanakan sebagai solusi untuk mengatasi stagnasi produksi dan penjualan hasil olahan mangrove (bolu dan krupuk mangrove) yang dihasilkan oleh Kelompok Tani “Karya Mina Mandiri” (KMM) dilaksanakan pada bulan Agustus-September 2014 di Mangunharjo Semarang. Target luaran (outcome) dalam kegiatan ini adalah pemantapan dan penguatan kerjasama yang selama ini telah terjalin antara tim pengabdian masyarakat dengan kelompok tani KMM sebagai mitra binaan, meningkatkan brand image product, meningkatkan hasil penjualan, meningkatkan minat masyarakat terhadap produk olahan mangrove, serta meningkatkan kesadaran akan pentingnya mangrove. Target kegiatan pengabdian masyarakat sudah terlaksana dengan baik sebesar 90% seperti sosialisasi, penyuluhan, perbaikan kemasan (packaging), pengujian informasi gizi produk dan pemberian bantuan alat kemasan. 10% Target kegiatan berupa promosi serta monitoring program pendampingan yang telah dijalankan, belum dapat dilakukan karena kendala bulan musim panen buah mangrove telah berlalu sehingga kelompok tani “Karya Mina Mandiri” belum dapat memproduksi hasil olahan mangrove dalam volume besar. Hasil pengujian kandungan gizi bolu mangrove sebagai berikut : total antioksidan  129%, kalori 364 Kkal/kg, protein 5,5%, lemak 0,61% dan karbohidrat 78,13% sedangkan pengujian kandungan gizi pada krupuk mangrove adalah sebagai berikut : total antioksidan 1,29%, kalori 240 Kkal/kg, protein 3,89%, lemak 0,3%, karbohidrat 68,29%. Berdasarkan kesimpulan tersebut, maka saran yang bisa disampaikan adalah Kendala musim panen buah mangrove perlu diantisipasi dengan cara mengolah semaksimal mungkin buah mangrove untuk dijadikan tepung pada saat panen dan menyimpannya sebagai stock cadangan pada bulan nonpanen.   Kata kunci : Program Pendampingan, Olahan Mangrove, Kandungan Gizi, Kemasan Produk,  Kelompok Tani “ Karya Mina Mandiri”, Mangunharjo   Community Service activities through sister  program implemented as a solution to overcome the stagnation in the production and sale of mangrove processed products (cake and krupuks-snacks mangrove) generated by Farmers Group "Mina Karya Mandiri" (KMM). Target outcomes (outcome) in this activities are the establishment and strengthening of cooperation that has been established between a community service teams with farmer groups KMM as trained partners, improve product brand image, increase sales, increase public interest in the mangrove refined products, as well as raising awareness the importance of mangrove. Target community service activities already performing well by 90% as socialization, counseling, improved packaging (packaging), testing the nutritional information of products and provision of packaging tools. 10% target in the form of promotional activities as well as monitoring of assistance programs that have been run, can not be done because of constraints in mangrove fruit harvest season has passed so that farmers group "Mina Karya Mandiri" have not been able to produce results in large volumes of processed mangrove. The test results  mangrove nutritional content as follows: total antioxidant 129%, 364 calories Kcal/kg, 5,5% protein, fat and carbohydrate 0,61% 78,13% while testing the nutrient content in the mangrove krupuks-snacks are as follows: total antioxidant 1,29%, calories 240 kcal / kg, 3,89% protein, 0,3% fat, carbohydrates 68,29%. Based on these conclusions, the suggestions can be submitted is Constraints mangrove fruit harvest should be anticipated by processing as much as possible to be used as flour mangrove fruit at harvest and store it as a backup in nonharvest stock. Keywords : Sister  Program, Mangrove Processing Product,  Nutritional Ingredients, Packaging Products, Farmers Group "Mina Karya Mandiri", Mangunharjo   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9333 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2782 2012-03-28T14:27:14Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Chilling of Milkfish (Chanos chanos Forsk.) Using Sea Water Flake Ice and Its Quality Analysis Ibrahim, Ratna Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Dewi, Eko Nurcahya Program Studi Teknologi Hasil Perikanan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Nowadays, there are a number of fishing company owners asking about the effects of using sea water flake ice to the fish quality because the research results on sea water flake ice characteristics as well as the suitable ratio between fish and sea water flake ice not much been published. The aim of the research was to evaluate the quality of milkfish, after three days of storage with the ratio between the fish and sea water flake ice of 1:1; 1:2 and 1:3. The experiment design applied was a Completely Randomized Design with three treatments and was done in triplicate. The organoleptic quality data were tested with Friedman test. Data on TVBN and TMA value were tested with analyses of variance. The HSD test was conducted to find out the differences among of the treatments. The different ratio between milkfish and sea water flake ice during three days of storage in styrofoam box did not give any significant influence (P>0,05) to the organoleptic , TVBN and TMA value. The ranges of organoleptic, TVBN and TMA values of the products were 7.2-7.3; 16.07 – 17.28 mg N% and 5.48 – 6.52 mg N% respectively. Keywords : Chilling, sea water flake ice, milkfish ,quality. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2782 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49475 2025-04-15T07:54:54Z saintek:RSA

nmb a2200000Iu 4500 "240429 2024 eng " 2549-0885 1858-4748 dc Thahir, Muhammad Agam Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Teuku Umar, Jln. Alue Peunyareng, Ujong Tanoh Darat, Meureubo, Aceh Barat, 23615 Fadhli, Fadhli Penelitian ini dilakukan untuk mengetahui perbandingan kekuatan mekanik cangkang kerang lokan dan cangkang siput sedut sebagai bahan pengganti fiberglass pada kapal. Metode yang digunakan adalah metode eksperimen kuantitatif menggunakan Rancangan Acak Lengkap (RAL) dengan 2 perlakuan dan 3 ulangan. Pengujian yang dilakukan adalah pengujian tekan dan pengujian tarik. Pembuatan spesimen uji tekan mengacu pada standar SNI 03-3958-1995 dan pembuatan spesimen uji tarik mengacu pada standar ASTM D3039. Pengujian dilakukan dengan menggunakan alat Gotech Testing Machine Model GT 7001 LC 30. Data hasil pengujian kemudian dikonversi untuk selanjutya diuji kenormalan nya dengan menggunakan uji Shapiro-Wilk Test, data yang berdistribusi normal selanjutnya di analisis dengan menggunakan One Way ANOVA. Hasil pengujian kekuatan tekan komposit cangkang kerang lokan (Geloinia expansa) dan cangkang siput sedut (Sulcospira testudinaria) lebih tinggi dari standar kekuatan tekan yang ditentukan oleh BKI (Biro Klasifikasi Indonesia). Komposit cangkang kerang lokan dan siput sedut dapat digunakan sebagai bahan pembuatan papan komposit. Oleh karena itu, komposit cangkang kerang dan cangkang siput sedut dapat diaplikasikan sebagai bahan laminasi bagian deck kapal, untuk menambah daya tahan dan memperpanjang usia pemakaian kapal. Hasil pengujian kekuatan tarik komposit cangkang kerang lokan dan cangkang siput sedutlebih rendah dari standar kekuatantarik yang ditentukan oleh BKI, sehingga komposit cangkang kerang lokan dan cangkang siput sedut jika dilihat dari kekuatan tarik belum dapat digunakan sebagai bahan laminasi pada kapal. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49475 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/49475/156651 Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/31158 2021-11-30T11:46:09Z saintek:RSA

nmb a2200000Iu 4500 "210830 2021 eng " 2549-0885 1858-4748 dc Sifa, Zulfana Fikru Universitas Diponegoro https://orcid.org/0000-0003-4438-1151 Purnomo, Pujiono Wahyu Ayuningrum, Diah Ekosistem terumbu karang sangat dipengaruhi oleh faktor-faktor lingkungan laut, salah satunya salinitas. Tekanan salinitas tinggi (hipersaline) maupun rendah (hiposaline) dapat menyebabkan karang menjadi stress osmotik sehingga zooxanthellae akan keluar dari polip dan menyebakan bleaching serta dapat mengakibatkan kematian karang dalam jangka panjang. Tujuan penelitian ini adalah untuk mengetahui pengaruh konsentrasi salinitas hipo dan hiper-salin terhadap densitas zooxanthellae serta hubungannya terhadap fotosintesis (NPP), respirasi dan Gross Primary Productivity (GPP). Penelitian ini menggunakan metode eksperimental yang dilaksanakan pada 13 November 2019 – 7 Februari 2020 di Laboratorium Pengembangan Wilayah Pantai (LPWP). Karang yang dipergunakan sebagai objek penelitian adalah Acropora sp. yang diambil dari perairan Pulau Panjang, Jepara. Konsentrasi salinitas yang digunakan yaitu 25 o/oo, 30 o/oo, 35 o/oo dan pengamatan dilakukan dengan interval waktu ke- 0, 3, 6 dan 9 hari. Hasil penelitian menunjukkan bahwa perbedaan konsentrasi salinitas berpengaruh nyata terhadap pelepasan zooxanthellae. Konsentrasi 25 o/oomenyebabkan tekanan pelepasan tertinggi dengan penurunan sebanyak 21 ekor per hari. Densitas zooxanthellae mempengaruhi nilai fotosintesis (NPP), respirasi dan Gross Primary Productivity (GPP) karang. Semakin rendah densitas zooxanthellae maka cenderung semakin rendah fotosintesis (NPP), respirasi serta  gross primary productivity (GPP) karang Acropora sp.   Coral reef ecosystems are strongly influenced by marine environment factors, one of which is salinity. The effect of high salinity (hipersalin) and low salinity (hiposaline) on corals causes osmotic stress so that zooxanthellae will come out of polyps may cause bleaching and coral death in long-term exposure. The purpose of this study is determining the effect of several salinity concentrations on zooxanthellae density and their relationship to photosynthesis (NPP), respiration and primary productivity (GPP). This research used experimental method was conducted on November 13th – February 7th, 2020 at Coastal Development Laboratory (LPWP). Corals used as research objects are Acropora sp. taken from the waters of Pulau Panjang, Jepara. Acropora sp. is given salinity concentration treatment (25 o/oo, 30 o/oo, 35 o/oo). Observations were made at 0, 3, 6 and 9 day time intervals. The results showed that the difference in salinity concentration significantly affected the density of zooxanthellae. Salinity concentration 25 o/oo treatment causing the highest zooxanthellae release pressure with a decrease of 21 animals per day. Zooxanthellae density affects the value of photosynthesis (NPP), respiration and gross primary productivity (GPP) of corals. The lower the zooxanthellae density, the lower the NPP, respiration and GPP of corals tends to be. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/31158 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/31158/91093 Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/70001 2025-04-15T08:09:35Z saintek:RSA

nmb a2200000Iu 4500 "241223 2024 eng " 2549-0885 1858-4748 dc PENGELOLAAN POTENSI WISATA BAHARI DITINJAU DARI KEARIFAN LOKAL TARA BANDU DI PULAU ATAÚRO TIMOR LESTE Pereira, Aquilio Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro | Dinas Karantina Ikan, Kementerian Pertanian, Peternakan, Perikanan dan Kehutanan Timor Leste Suryanti, Suryanti Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Wijayanto, Dian Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Potensi; Wisata; Tara Bandu; Timor Leste Pulau Ataúro di Timor-Leste memiliki potensi wisata pantai yang cukup potensial untuk dikembangkan dan dikelola, khususnya desa Beloi dan Biqueli. Tujuan penelitian ini untuk mengidentifikasi profil responden dan potensi wisata bahari, menganalisis karakteristik kearifan lokal Tara Bandu serta menyusun strategi pengelolaan potensi wisata bahari di Pulau Ataúro. Metode penelitian observasi, dengan teknik pengambilan sampel menggunakan dokumentasi dan wawancara terhadap wisatawan dan tokoh masyarakat dan tokoh adat. Analisis data potensi dengan menilai persepsi tentang keindahan dan kenyamanan potensi wisata, analisis data penerapan kearifan lokla dengan wawancara mendalam dan analisis strategi menggunakan analisis SWOT. Hasil penelitian menunjukkan bahwa profil wisatawan pulau Atauro sebagian besar laki-laki (65%), berusia 26 sampai 35 tahun (38%), dengan pendidikan S1 (34%) dan berasal dari Timor Leste (68%). Penerapan pendekatan kearifan lokal Tara Bandu didalam pelaksanaan wisata bahari di Pulau Atauro, dapat menjaga pelestaria alam sekaligus meningkatkan pendapatan masyarakat di lokasi wisata. Strategi pengelolaan potensi wisata bahari di Pulau Atauro adalah (1). Kenyamanan pengunjung merupakan faktor penting didalam pengembangan kearifan lokal wisata bahari, mendatangkan wisatawan baru, dan pengembangan sumber daya manusia. (2). Pengelolaan potensi biota laut didalam pengembangan potensi wisata. Dan (3). Pengelolaan daya tarik alam dan pantai serta keindahan bawah laut dalam pengembangan potensi wisata. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-31 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/70001 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 4 (2024): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11142 2020-04-17T19:23:02Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc EFISIENSI ALOKATIF FAKTOR PRODUKSI PADA USAHA PERIKANAN TANGKAP DI KOTA BENGKULU: KASUS PADA ALAT TANGKAP GILLNET Allocative Efficiency of Production Inputs in Capture Fishery Business in Bengkulu City: Case Study of Fishing Vessel with Gillnet Fishing Sukiyono, Ketut Jurusan Sosial Ekonomi Pertanian, Fakultas Pertanian Universitas Bengkulu Romdhon, M. Mustopa Jurusan Sosial Ekonomi Pertanian, Fakultas Pertanian Universitas Bengkulu Efisensi alokatif; Perikanan tangkap; Gillnet   Penelitian ini ditujukan untuk mengeksaminasi faktor yang mempengaruhi volume ikan hasil tangkapan dan menganalisa efisiensi alokatif input produksi.  Penelitian ini dilakukan di Kota Bengkulumeliputi survai pada 60 nelayan perikanan tangkap dengan alat tangkap jaring insang (Gillnet).  Fungsi produksi Cobb-Douglass digunakan utnuk menentukan faktor yang mempengaruhi volume ikan tangkapan dan efisiensi alokatif. Faktor produksi yang dimasukan dalam model adalah ukuran kapal, lama melaut, ukuran mesin kapal, jumlah ABK, dan biaya operasional melaut.  Hasil penelitian menunjukkan bahwa lama melaut dan jumlah ABK merupakan faktor penting yang mempengaruhi jumlah hasil tangkapan, sementara faktor yang lain tidak.  Lama melaut dan jumlah ABK tidak efisien sehingga penggunaan dua faktor ini harus ditingkatkan untuk mencapai efisiensi alokatif.   Kata kunci: Efisensi alokatif, Perikanan tangkapa, Gillnet     ABSTRACT  This research was aimed at examining factors that have an effect on the volume of catches fishes, and analyzing an allocative efficiency of input productions.  This research was conducted in Bengkulu City involving survey on 60 fishermen of fishing vessel with Gillnetfishing gears.  The production function of Cobb Douglass used to determine factors affected the volume of catches fishes and allocative efficiency.  Production factors were included in the model involving fishing vessel size, length of fishing day, vessel machine power, number of vessel crews, and operational costs. The research showed that length of fishing day and number of fishing vessel crews are an important factors affected the volume of catches fishes, while others are not. The use of length of fishing and the vessel crews were an inefficient.  Therefore, the use of these two factors should be increased to gain an allocative efficiency. Keywords: Allocative efficiency, Capture fishery, Gillnet Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11142 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/6764 2025-04-26T12:33:43Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc Soaking Period of Cooked Blood Cockle (Anadara granosa) Meat in Alginate Solution to Cadmium Content Reduction Al Chusein, Achid Furqon Mahasiswa Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Ibrahim, Ratna Staf Pengajar Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Some blood cockles in the West Banjir Kanal river estuary in Semarang have been contaminated  by some heavy metal that exceeds the level of Indonesian National Standard requirement. The research aimed to find out the effect of different soaking period of cooked blood cockle (Anadara granosa) meat in 4.0%  alginate solution to the cadmium content reduction, moisture content, ash content, pH and organoleptic  values of the product. The experimental design used was completely randomized design with three  treatments, namely the soaking period of cooked blood cockle meat in 4.0% alginate solution for 10 minutes, 20 minutes, 30 minutes and control (without soaking). Each of the treatment was done in triplicate. The results  showed that the different soaking period of cooked blood cockle meat in 4.0% alginate solution (for 10 minutes, 20 minutes, 30 minutes) resulted in highly significant reduction of cadmium content which was from 1.588 mg/kg (control) to 0.463 mg/kg (the lowest) after 30 minutes soaking period. The longer the  soaking   period of cooked blood cockle meat in 4.0% alginate solution the lower the cadmium content. The soaking period of cooked blood cockle meat in 4.0% alginate solution for 30 minutes was the best soaking period because it could reduce the content of cadmium up to 0.463 mg/kg and the organoleptic value was 7.89 which met the quality requirements of cooked blood cockle meat according to SNI.   Key words: Cooked blood cockle meat, alginate, cadmium, pH, quality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6764 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/41649 2022-04-19T17:13:21Z saintek:RSA

nmb a2200000Iu 4500 "220325 2022 eng " 2549-0885 1858-4748 dc ANTIBACTERIAL ACTIVITY FROM ETHANOL AND ETHYL ACETATE EXTRACTS OF Padina pavonica HAUCK FROM KABUNG ISLAND AGAINST Escherichia coli Warsidah, Warsidah Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak, Kalimantan Barat Safitri, Ikha Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak, Kalimantan Barat Sofiana, Mega Sari Juane Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak, Kalimantan Barat Helena, Shifa Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Pontianak, Kalimantan Barat antibacterial; ethanol; ethyl acetate; Escherichia coli; Kabung Island ;Padina pavonica. Macroalgae is marine biological resources that play a crucial role and have an important economic value. They synthesize bioactive compounds with different kind of biological activities, such as antioxidant, antitumor, including antibacterial. In the health sector, infectious diseases from bacteria is one of the problems that still increasing. In addition, E. coli besides having the capacity to be pathogenic agent, it also showed mutlidrug resistence (MDR). Antibiotic resistance is a serious problem worldwide. The increase of this phenomenon leads to the exploration of new antibiotics using natural resources as an effort to overcome the problem. Padina pavonica Hauck belongs to Phaeophyceae spreeding along Kabung Island waters, but its existence has not been widely used. The objective of this study was to evaluate antibacterial activity from ethanol and ethyl acetate extract of P. pavonica Hauck from Kabung Island, West Kalimantan against E. coli. The extraction was  made using ethanol and ethyl acetate solvents, and the antibacterial activity test was realized with concentration series of 5 ppm, 10 ppm, 15 ppm, and 20 ppm. The quantitative assessment of the antibacterial test showed that both ethanol and ethyl acetate extracts of P. pavonica Hauck had potential antibacterial activity against E. coli. The inhibition zone of ethanol extract was 11.6 mm, while ethyl acetate extract was 12.6 mm, respectively. These two solvents were included to the bacteriostatic category. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/41649 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/71683 2025-05-27T07:35:51Z saintek:RSA

nmb a2200000Iu 4500 "250424 2025 eng " 2549-0885 1858-4748 dc Wibawa, Fara Departement of Fisheries Science Haryati, Sakinah Aditia, Rifki Prayoga Minuman fungsional merupakan jenis pangan yang tidak hanya mengandung nutrisi, tetapi juga memberikan manfaat kesehatan, termasuk potensi antioksidan dan dukungan untuk pencernaan. Penelitian ini bertujuan untuk menentukan formulasi optimal minuman fungsional berbahan alginat, dengan fokus pada kapasitas antioksidan dan kandungan serat yang dapat diterima masyarakat. Penelitian menggunakan rancangan acak lengkap (RAL) dengan empat variasi perlakuan substitusi alginat: 0%, 0,7%, 1%, dan 1,3%. Parameter pengujian meliputi kapasitas antioksidan (menggunakan metode DPPH), kandungan serat pangan, serta uji organoleptik. Hasilnya menunjukkan bahwa peningkatan konsentrasi alginat meningkatkan kapasitas antioksidan dan kandungan serat pangan. Formulasi terbaik ditemukan pada perlakuan 1,3% alginat, dengan inhibisi antioksidan mencapai 75,11% dan kandungan serat pangan tertinggi sebesar 2,17%. Uji organoleptik menunjukkan bahwa perlakuan 1,3% juga mendapatkan skor tertinggi untuk warna (3,77), meskipun parameter aroma tidak menunjukkan perbedaan signifikan antar perlakuan. Pada parameter rasa, formulasi tanpa penambahan alginat (0%) memperoleh skor tertinggi, yakni 3,57 (agak suka). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-04-16 03:41:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71683 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 1 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13192 2020-04-17T19:24:48Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc ANALISIS SUSUT BOBOT PENGUKUSAN DAN RENDEMEN PENGUPASAN RAJUNGAN BERUKURAN BERBEDA DAN RAJUNGAN BERTELUR Analysis of Weight Lost due to Streaming and Skinning of Crabs with Different Size and Eggs Laying Suharto, Slamet Departemen Teknologi HasilPerikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Romadhon, Romadhon Departemen Teknologi HasilPerikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Redjeki, Sri Departemen Teknologi HasilPerikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro susut bobot; rajungan; daging rajungan; rendemen; jumbo; reguler; claw meat   Industri pengalengan rajungan  pasturisasi melalui beberapa tahap utama yaitu pengukusan, pengupasan dan pengalengan. Rajungan  yang dikukus akan mengalami susut bobot dan ketikan dikupas menghasilkan rendemen daging dalam jumlah dan komposisi tertentu. Penelitian  untuk mengetahui susut bobot  selama pengukusan rajungan,  rendemen, dan komposisi jenis daging   serta  proses pengupasan pada rajungan yang berbeda ukuran dan rajungan bertelur. Rajungan berukuran kecil (lebar karapas <10 cm); rajungan besar (lebar karapas >10 cm) dan rajungan bertelur dikukus selama 30 menit pada suhu 80-90 oC,  didiamkan 60 menit sampai suhunya menyesuaikan ruang, dikupas dan dipisahkan daging  jumbo, reguler dan claw meat. Diperoleh susut selama  dikukus  sebesar 19,3%, susut pendinginan 15,9%, dan susut total 32,2%.  Rerata rendemen pengupasan 37,6%, terdiri  dari : daging jumbo (21,5%);  daging regular (51,9%) dan  daging claw meat (29,4%).  Rendemen rajungan besar 42,1% jumbo 31,5%; regular 34,3%; dan  claw meat 34,2%. Sedangkan rajungan bertelur  rendemen daging 30,7% terdiri dari  jumbo 22,4%; regular 25,8%; claw meat 15,2%.  telur 36,7%. Pengukusan mengakibatkan penyusutan bobot pada rajungan utuh. Rajungan jantan mengalami penyusutan yang lebih tinggi dari rajungan betina yang tidak bertelur.Ukuran rajungan tidak mempengaruhi besarnya penyusutan. Rendemen daging rajungan besar paling tinggi dibandingkan rajungan kecil dan rajungan bertelur. Daging jumbo dihasilkan dan memiliki nilai harga paling tinggi pada rajungan besar.   Pasteurized crab canning industry through several major stages, namely steaming, peeling and canning. Steamed food ingredients will experience on weight loss which result in the meat yield in the amount and specific composition. The research was aimed to obtain the weight loss during steaming crab, meat yield and species composition of the process of peeling the crabs, on different sizes and crab spawn. Small crabs (carapace width <10cm); big crab (carapace width > 10cm) and crab spawn steamed for 30 minutes at a temperature of 80-90oC, cooled for 60 minutes according to the room temperature, peeled and separated of meat jumbo, regular and claw meat. The result showed the first shrinkage obtained during steamed at 19.3%, the shrinkage cooling 15.9%  and the total shrinkage at 32.2%. The average of peeling yield of 37.6%, compositing by jumbo meat (21.5%), regular meat (51.9%) and claw meat (29.4%). The yield of jumbo meat 31.5% ; regular 34,3%; and claw meat 34.2%. While spawn crab meat yield of 30.7% consisted of jumbo 22.4%; Regular 25.8%; claw meat 15.2% and eggs around 36.7%. Steaming resulted in depreciation weights on Rajungan intact. Crab males experienced higher depreciation compare to crab females which do not have eggs inside. Crab size does not affect the amount of depreciation. The yield of big crab meat was highest than small crabs and crab spawn. Jumbo meat is produced and has the highest price on the value of big crabs    Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13192 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/22059 2020-04-17T19:29:50Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc POTENSI RUMPUT LAUT Eucheuma cottonii SEBAGAI BAHAN BAKU PEMBUATAN KERTAS KANTONG KRAFT (Eucheuma cottonii Seaweed has a good Potential as Raw Material For Making Kraft Paper Bags) Ariefta, Ryan Program Studi Teknologi Hasil PerikananJurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Dewi, Eko Nurcahya Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Romadhon, Romadhon Program Studi Teknologi Hasil Perikanan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Eucheuma cottonii; selulosa; kantong kertas kraft Ekstrak selulosa yang berasal dari rumput laut Eucheuma cottonii dapat dijadikan sebagai bahan substitusi pembuatan kantong kertas kraft yang biasanya dibuat dari pulp kayu. Tujuan dari penelitian ini adalah untuk mengetahui kualitas kantong kertas kertas kraft dari ekstrak rumput laut E. cottonii apabila dibandingan dengan kertas kraft berstandar SNI. Rumput laut         E. cottonii yang digunakan berasal dari pantai Krakal, Gunung Kidul, Jogjakarta. Pembuatan kertas kraft dilakukan dengan ekstraksi selulosa dari E. cottonii diikuti dengan pemasakkan hingga hancur, pencetakan dan pengeringan sehingga berbentuk pulp lembaran. Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap (RAL), dengan 1 faktor yaitu konsentrasi ekstrak rumput laut E. cottonii dengan tiga taraf yang berbeda yaitu  15%, 20%, dan 25%.  Parameter pengujian yang dilakukan adalah  ketahanan tarik, ketahanan sobek, daya regang dan derajat kecerahan (CIELAB). Data parametrik yang didapatkan  diuji dengan sidik ragam (P<5%), dilanjutkan dengan uji Beda Nyata Jujur (BNJ) untuk melihat perlakuan yang berbeda. Hasil yang didapatkan pada uji ketahanan tarik pada konsentrasi 15%, 20% dan 25% berturut - turut, yaitu 1,80 ± 0,22 kN/m; 5,54 ± 0,42 kN/m dan 7,33 ± 1,28 kN/m,  ketahanan sobek 737,62 ± 91,15 mN; 2260,00 ± 173.18 mN dan 2991,90 ± 525.04 mN,   daya regang : 3,86 ± 1,78%; 7,24 ± 0,83% dan 7,08 ± 2,15%, untuk uji gramatur :  70 gram; 73,09 gram dan 75,75 gram. Hasil uji perbandingan kualitas kertas kraft paper bag dari  subsitusi ekstrak selulosa 20% dan 25% telah memenuhi SNI, sedangkan pada konsentrasi 15% belum memenuhi SNI.   Cellulose extract from Eucheuma cottonii seaweed can be used as a substitute for making kraft paper bags.  Kraft paper are  usually made from wood pulp. The purpose of this study was to determine the quality of kraft paper bags from seaweed extract E. cottonii when it compared to SNI  kraft paper. The E. cottonii seaweed used comes from Krakal beach, Gunung Kidul, Jogjakarta. The kraft paper was first  made by extracting cellulose from E. cottonii, it was   cooked,  crushed, printed , dried and finally it was   formed to  pulp sheet. The experimental design used was Completely Randomized Design (CRD), with 1 factor concentration of seaweed extract E. cottoni with three levels concentration  15%, 20%, and 25% respectively.  The test parameters performed were tensile resistance, tear resistance , tensile strength and brightness (CIELAB). Data were analysed using Anova  and tested continued Honestly Significant Different test (HSD). The results obtained in the tensile resistance test at a concentration of  15%, 20% and 25% were  1.80 ± 0.22 kN / m; 5.54 ± 0.42 kN / m and 7.33 ± 1.28 kN / m, in the tear resistance test were  737.62 ± 91.15 mN; 2260.00 ± 173.18 mN and 2991.90 ± 525.04 mN, the tensile strength were 3.86 ± 1.78%; 7.24 ± 0.83% and 7.08 ± 2.15%, for successive grammar tests:  70 grams; 73.09 grams and 75.75 grams. The comparison test results of the quality of paper bag kraft paper from cellulose extract 20% and 25% have met SNI, while at a concentration of 15% have not met SNI. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22059 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/46711 2022-06-18T09:12:11Z saintek:RSA

nmb a2200000Iu 4500 "211230 2021 eng " 2549-0885 1858-4748 dc ECOLOGICAL NICHE BASED ON FISH FOOD COMPETITION AND FEEDING HABIT PATTERNS IN THE JATIBARANG RESERVOIR Ain, Churun Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Anggoro, Sutrisno Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Wijayanto, Dian Department of Capture Fisheries, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Rudiyanti, Siti Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Isroliyah, Afifatul Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Food Competition, Feeding habit, Ecological Niche, Jatibarang Reservoir The purpose of this study was to determine ecological niche, the types of fish caught using gillnet and fishhook, the abundance of plankton, feeding habits and food competition in Jatibarang reservoir. The research was conducted from July until October, 2020. Tilapia (Oreachromis niloticus), Milkfish (Chanos chanos), Grass Carp (Ctenopharyngodon idella), Java Barb (Barbonymus gonionotus), and Red Devil (Amphilophus amarillo) were several types of fish found in the Jatibarang Reservoir. The total abundance of plankton was 4220 ind /, with L.Chlorophyceae dominating with a value 1780 ind / L and Zooplankton with the lowest abundance value of 20 ind / L. The result of the dominant Index of Preponderence (IP) showed Chlorophyceae class as the staple food of Tilapia, Grass Carp and Java Barb with values of 49.86%, 45.16% and 52.34% respectively. Milk fish and Red Devil had no main food (IP < 40%). The others class of plankton (Bacillariophyceae, Coscinodiscophyceae, Dinophyceae, Euglenoidea Cyanopyceae, Fragilariophyceae, and Zygnematophyceae) appeared as complementary foods (IP value 4-40%) and as additional food (IP value lesser than 4%). Milkfish was also found to have the highest ecological niche value of 4.577 and the Red Devil with the lowest value. The result of the niche overlap indicated the strongest good competition occurred between Tilapia and Gras Carp with a yield value of 1, and the lowest overlap value was found between Milkfish and Red Devil. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-12-10 06:13:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/46711 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 4 (2021): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/73353 2025-08-04T07:51:55Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Nadhiroh, Alfia Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Fahmi, A Suhaeli Agustini, Tri Winarni Rusyanto, Widya Snack bar merupakan camilan praktis dan bergizi, biasanya dibuat dari kacang-kacangan, buah kering, dan oatmeal. Penambahan protein ikan, yang memiliki kualitas tinggi dan asam amino esensial lengkap, dapat meningkatkan kandungan gizi produk. HPI (Hidrolisat Protein Ikan) juga memiliki sifat fungsional yang mendukung peningkatan rasa, tekstur, dan nilai gizi produk. Dalam penelitian ini, HPI yang digunakan telah melalui proses mikroenkapsulasi untuk mengurangi rasa pahit dan meningkatkan stabilitasnya. Penelitian ini menggunakan buah pisang kepok matang sebagai bahan dasar, dengan tujuan untuk menganalisis pengaruh fortifikasi HPI terhadap karakteristik dan komposisi gizi snack bar pisang. Penelitian dilakukan secara eksperimental dengan rancangan acak lengkap (RAL) yang terdiri dari 4 perlakuan: K (0%), A (5%), B (8%), dan C (10%), masing-masing dengan 3 ulangan. Data dianalisis menggunakan SPSS 16; uji ANOVA dan Duncan untuk data parametrik, serta Kruskal-Wallis dan Mann-Whitney untuk data non-parametrik. Hasil menunjukkan bahwa peningkatan konsentrasi HPI menurunkan kekerasan dan kecerahan warna, serta menurunkan tingkat kesukaan panelis terhadap kenampakan. Namun, fortifikasi HPI meningkatkan kadar protein, abu, dan beberapa asam amino. Perlakuan terbaik diperoleh pada fortifikasi 8% (B), dengan kekerasan 712,8 gf, warna L* = 40,48; a* = 9,45; b* = 44,13, serta karakteristik produk berwarna kuning kecoklatan, tekstur padat-lembut, rasa manis sedikit asam, dan aroma ikan tipis. Kandungan gizinya meliputi protein 7,72%, air 18,51%, lemak 15,83%, karbohidrat 56,89%, abu 1,05%, dan peningkatan asam amino seperti tirosin, asam aspartat, glisin, dan lisin. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/73353 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15290 2020-04-17T19:25:48Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc PENGARUH PERBEDAAN KONSENTRASI EKSTRAK Sargassum sp. DAN LAMA PENYIMPANAN TERHADAP OKSIDASI LEMAK PADA FILLET IKAN PATIN (Pangasius sp.) (The Effect of Different Concentrations Extract Sargassum sp. and Storage Time of Lipid Oxidation at Catfish (Pangasius sp.)) Hidayati, Fatin Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Darmanto, Y.S. Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Romadhon, Romadhon Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Antioksidan; Ekstrak Sargassum sp; Lama Penyimpanan; Oksidasi lemak; Fillet Ikan patin   Ikan patin merupakan ikan air tawar yang mengandung lemak dan protein tinggi sehingga apabila dilakukan penyimpanan rentan terjadi oksidasi yang mengakibatkan ketengikan. Sargassum sp. dengan kandungan fenol dan flavonoid mampu menghambat terjadinya oksidasi pada fillet ikan patin. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan ekstrak Sargassum sp. dan lama penyimpanan dalam menghambat terjadinya oksidasi pada fillet ikan patin. Materi yang digunakan dalam penelitian ini adalah ekstrak Sargassum sp. dan fillet ikan patin. Metode penelitian yang digunakan adalah experimental laboratories dengan menggunakan Rancangan Acak Lengkap (RAL) faktorial dengan 2 faktor yaitu konsentrasi ekstrak Sargassum sp. (0%, 1%, 1,5% dan 2%) dan lama penyimpanan (hari ke-0, hari ke-2, hari ke-4, dan hari ke-6. Hasil penelitian menunjukkan bahwa perbedaan penambahan konsentrasi ekstrak Sargassum sp. dan lama penyimpanan memberikan pengaruh nyata terhadap nilai PV, nilai TBA, kadar lemak, kadar protein, kadar air serta organoleptik (P<0,05). Hasil penelitian tahap I didapatkan rendemen Sargassum sp. dengan pelarut etanol 96% sebesar 1,39%, kandungan fenol 1,813%, flavonoid 0,278% dan aktivitas antioksidan dengan Ic 50 sebesar 99,1659 ppm (kuat). Hasil penelitian tahap II didapatkan nilai PV berkisar antara 2,03–19,82 meq/kg, nilai TBA 0,63–6,72 mg.mal/kg. Konsentrasi 1,5% merupakan konsentrasi terbaik ekstrak Sargassum sp. dalam menghambat oksidasi lemak pada fillet ikan patin selama penyimpanan.    Catfish is a freshwater fish that contain high fat and protein so that if its stored it will susceptible to oxidation process which leads to rancidity. Sargassum sp. with its phenolic and flavonoid content are able to inhibit the oxidation process in catfish fillet. This research was aimed to know the effects of different concentrations of Sargassum sp. extracts and storage time in inhibiting the oxidation process in catfish fillet. The materials used in this research were Sargassum sp. extracts and catfish fillet. This research was using experimental laboratories research method with factorial Completely Randomized Research Design (CRD) of 2 factors which were concentrations of Sargassum sp. extracts (0%, 1%, 1.5%, and 2%) and storage time (0 day, 2 days, 4 days, and 6 days). The results showed that the adding of different concentrations of Sargassum sp. extracts and storage time gave significant effect to the PV value, TBA value, fat content, protein content, moisture content, as well as organoleptic point (P < 0.05). The results obtained from stage I research were the yields of Sargassum sp. with ethanol 96% solvent was 1.39%, phenol content was 1.813%, flavonoid was 0.278%, and antioxidant activity was 99.1659 ppm (categorized as strong antioxidant). The results obtained from stage II research were the PV value were ranged from 2.03 to 19.82 meq/kg, TBA value were ranged from 0.63 to 6.72 mg.mal/kg. The 1.5% concentration was the best concentration of Sargassum sp. extracts in inhibiting the lipid oxidation of catfish fillet during storage.    Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15290 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/21401 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190717 2019 eng " 2549-0885 1858-4748 dc KARAKTERISTIK LINGKUNGAN PENENTU DISTRIBUSI DAN KEPADATAN FAUNA MAKRO BENTIK SERTA HUBUNGANNYA: STUDI KASUS GASTROPODA DAN KEPITING BRACHYURA DI KAWASAN REBOISASI MANGROVE KEPULAUAN SERIBU Syahrial, Syahrial Belukap Mangrove Club Fahriansyah, Fahriansyah Belukap Mangrove Club Lilian, Anna Belukap Mangrove Club Arbaeyah, Arbaeyah Belukap Mangrove Club Tanjung, Cahyani Fitrah Belukap Mangrove Club Lubis, Nila Sari Belukap Mangrove Club Karakteristik Lingkungan; Gastropoda; Kepiting Brachyura; Mangrove; Reboisasi; Kepulauan Seribu Hutan mangrove memiliki lingkungan yang sangat kompleks, dimana di dalam dan antar lokasi habitat mangrove saling berbeda. Kajian karakteristik lingkungan penentu distribusi dan kepadatan fauna makro bentik serta hubungannya (studi kasus gastropoda dan kepiting brachyura di kawasan reboisasi mangrove Kepulauan Seribu) telah dilakukan pada bulan Maret 2014. Hal ini bertujuan untuk mengetahui faktor-faktor lingkungan yang berperan terhadap distribusi dan kepadatan gastropoda maupun kepiting brachyura serta untuk mengetahui hubungan antara karakteristik lingkungan dengan distribusi dan kepadatan gastropoda maupun kepiting brachyura di kawasan reboisasi mangrove Kepulauan Seribu. Pengukuran karakteristik lingkungan dilakukan dengan cara insitu, sedangkan data gastropoda dan kepiting brachyura dikumpulkan dengan membuat transek garis dan plot yang ditarik dari titik acuan (tegakan mangrove terluar) dan tegak lurus garis pantai sampai ke daratan. Faktor-faktor lingkungan yang menentukan distribusi dan kepadatan gastropoda maupun kepiting brachyura dianalisis menggunakan Principal Component Analysis (PCA), sedangkan hubungannya digunakan analisis regresi linier sederhana. Hasil kajian memperlihatkan bahwa karakteristik lingkungan yang paling menentukan distribusi dan kepadatan gastropoda maupun kepiting brachyura di kawasan reboisasi mangrove Kepulauan Seribu adalah parameter pH. Hal ini mengindikasikan bahwa semakin tinggi konsentrasi pH perairan, maka kepadatan gastropoda maupun kepiting brachyura juga semakin tinggi. Begitu sebaliknya, semakin rendah konsentrasi pH perairan, maka kepadatan gastropoda dan kepiting brachyura juga semakin menurun. Mangrove forests have a very complex environment, where in and between locations mangrove habitats are different. The study of environmental characteristics determining the distribution and density of benthic macrofauna and their relationship (a case study of gastropods and crab brachyurans in the Seribu Islands mangrove reforestation area) was conducted in March 2014. The research aims to determine environmental factors that contribute to the distribution and density of gastropods and brachyurans crabs and to determine the relationship between environmental characteristics and the distribution and density of gastropods and crab brachyurans in the Seribu Islands mangrove reforestation area. Measurements of environmental characteristics were carried out by insitu method, while data on gastropods and crab brachyurans were collected by making line transects and plots drawn from the reference point (outermost mangrove stands) and perpendicular to the coastline to the mainland. Environmental factors that determine the distribution and density of gastropods and crab brachyurans were analyzed using the Principle Component Analysis (PCA), while the relationship used simple linear regression analysis. The results of the study show that the environmental characteristics that most determine the distribution and density of gastropods and crab brachyurans in the mangrove reforestation area of the Seribu Islands are pH parameters. This indicates that the higher the concentration of water pH, the higher the density of gastropods and crab brachyurans. On the contrary, the lower the concentration of water pH, the density of gastropods and crab brachyurans also decreases. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21401 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019

oai:ojs.ejournal.undip.ac.id:article/6829 2025-04-26T12:46:28Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc Performance Analysis of Nusantara Fishery Harbor of Pekalongan Kohar M, Abdul Staf Pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Suherman, Agus Staf Pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Arif, Much Mahasiswa Progam Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro The  objective  of  th e  research  were  to  find  out  the  work  program  that  done  and  performance percentage level of the archipelagic fishery port of Pekalongan. The method of research used in the research is the descriptive method and a case study research. The primary data were collected from interviews, meanwhile the secondary data were collected from the related services and literature study presented in the institutions having the connections with observed objects. Data analysis using Balanced Scorecard (BSC) analysis. The research result shows that the work program efficiency that had been done was categorized as very good while percentage performance of PPN Pekalongan shows enhanced during   the last 3 year, this was caused by all work program ambulatory as according to annual performance plan.   Keywords: fishery harbor, performance percentage Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6829 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21013 2018-12-04T09:38:40Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/75426 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Aufat, Agung Gunawan Politeknik Ahli Usaha Perikanan Jakarta https://orcid.org/0009-0003-3913-1104 Mulyono, Mugi Sektiana, Sinar Pagi Kappaphycus alvarezii adalah komoditas budidaya laut yang memiliki nilai ekonomi tinggi sebagai sumber karagenan, senyawa hidrokoloid yang banyak digunakan dalam industri pangan, farmasi, dan kosmetik. Permintaan global terhadap karagenan yang terus meningkat memerlukan penerapan teknik budidaya yang tidak hanya meningkatkan hasil panen, tetapi juga kualitas produk. Penelitian ini bertujuan untuk menganalisis pengaruh pemberian pupuk organik dan anorganik terhadap kualitas karagenan yang dihasilkan dalam budidaya K. alvarezii . Perlakuan yang diberikan meliputi pupuk organik cair D.I.GROW, pupuk anorganik NPK, pupuk urea, dan kontrol tanpa pupuk. Metode yang digunakan adalah eksperimen dengan rancangan acak lengkap (RAL), di mana setiap perlakuan diterapkan pada kelompok yang terpisah dan diuji berdasarkan parameter rendemen, viskositas, kadar air, dan kadar abu. Hasil penelitian menunjukkan bahwa perlakuan dengan D.I.GROW menghasilkan rendemen sebesar 41% dan viskositas 189,37 cP, yang keduanya melebihi standar yang direkomendasikan oleh FAO. Sebaliknya, kontrol tanpa pupuk menghasilkan nilai terendah pada seluruh parameter yang diuji. Kadar air pada kontrol mencapai 42%, melebihi batas standar FAO yang merekomendasikan kadar air maksimal 30% untuk produk karagenan berkualitas tinggi. Perlakuan dengan pupuk lainnya masih memenuhi standar, dengan kadar air berada pada kisaran yang disarankan, yaitu sekitar 30%. Kadar abu pada perlakuan NPK dan urea berada dalam kisaran standar (20-30%), sementara D.I.GROW dan kontrol menunjukkan kadar abu yang lebih rendah, yang menunjukkan kualitas kemurnian produk yang lebih baik. Secara keseluruhan, penelitian ini membuktikan bahwa pemberian pupuk berpengaruh signifikan terhadap kualitas karagenan K. alvarezii , dengan pupuk D.I.GROW terbukti lebih efektif dalam meningkatkan viskositas, rendemen, dan kemurnian produk, sementara pupuk anorganik lebih berperan dalam menjaga kestabilan karakteristik fisik karagenan. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/75426 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/20531 2020-04-17T19:27:47Z saintek:RSA

nmb a2200000Iu 4500 "181002 2018 eng " 2549-0885 1858-4748 dc ANALISIS PENGGUNAAN FOAM POLYURETHANE PADA KAPAL IKAN 5 GT SEBAGAI DAYA APUNG CADANGAN DI PT. JELAJAH SAMUDERA INTERNASIONAL KABUPATEN JEPARA (Analysis of Foam Polyurethane Usage for 5 GT Fiber Fishing Boat as Buoyancy Alternative at PT. Jelajah Samudera Internasional, Jepara Regency) Boesono, Herry Program studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Saraswati, Meita Program studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Setiyanto, Indradi Program studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kapal Ikan Fiber 5 GT; Keselamatan Kapal; Foam Polyurethane Kapal fiber bila terjadi kebocoran di laut maka kapal akan tenggelam, hal tersebut dikarenakan massa jenis fiber lebih besar daripada massa jenis air, oleh karena itu perlu dianalisis dan dihitung seberapa banyak foam polyurethane tersebut yang diperlukan untuk mengapungkan kapal sesuai dengan berat kapal yakni 5 GT. Penelitian ini dilakukan pada bulan Oktober-Desember 2017, bertempat di PT. Jelajah Samudera Internasional dan Laboratorium Fishing Boat Departemen Perikanan Tangkap Universitas Diponegoro. Tujuan penelitian ini yaitu untuk menganalisis kemampuan daya apung cadangan berbahan polyurethane dan Menghitung kebutuhan jumlah dan harga foam polyurethane yang di perlukan untuk mengapungkan kapal ikan fiber 5 GT  yang dibuat di PT. Jelajah Samudra Internasional Kab. Jepara. Metode yang digunakan adalah metode deskriptif dengan dua tahap pelaksanaan, yakni penelitian di galangan dan penelitian skala laboratorium dalam spesimen kecil. Hasil yang diperoleh dari penelitian yaitu bahwa foam polyurethane dengan berat 15 gr dapat menahan beban fiber sebesar 1 kg. Hasil uji apung didapatkan untuk mengapungkan kapal ikan fiber 5 GT dibutuhkan 45 kg foam polyurethane. Kebutuhan harga foam polyurethane yang dibutuhkan untuk satu kapal yakni sebesar Rp 2.475.000.   Fiber ship are very difficult to overcome when there is a leakage in the sea and its possible for the ship to sink. Therefore, it needs to be analyzed and calculated how much polyurethane foam is needed, how many liters if its melted and how much the  volume when it becomes a polyurethane foam solid. This research was conducted in October-December 2017, held at PT. Jelajah Samudera Internasional and Laboratory Fishing Boat Department of Capture Fisheries, Diponegoro University. The purpose of this study is to analyze the capability of alternative buoyancy polyurethane then calculate and analyze the quantity that needed and foam polyurethane price to float the 5 GT fiber fishing ship that made in PT. Jelajah Samudera Internasiona, Jepara Regency. The method used is descriptive with two steps of implementation, i.e. research in the shipyard and laboratory scale in small specimens.The results from the research obtain that the polyurethane foam with 15 gr weight can hold 1 kg fiber load. The float test results revealed that to float fiber fishing ships with a size of 5 GT, needs 45 kg of polyurethane foam. The price needed to float the ship is Rp 2.475.000. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/20531 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22434 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc PROSPEK PENERAPAN “CO-MANAGEMENT” UNTUK PENGELOLAAN SUMBERDAYA PESISIR DI KEPULAUAN KARIMUNJAWA, JEPARA (Implementation of “Co-management” For Coastal Resources Management In Karimunjawa Islands, Jepara) Syah Rani, Dinar Isyana Diponegoro University Wijayanto, Dian Diponegoro University Indarjo, Agus Diponegoro University Susilowati, Indah Diponegoro University Kepulauan Karimunjawa; pembangunan berkelanjutan; co-management Kegiatan pemanfaatan sumberdaya pesisir yang tidak terkontrol menyebabkan tekanan terhadap keberlangsungan ekologi. Penyelesaian masalah tersebut salah satunya dengan  kemitraan semua stakeholder yaitu dengan kesadaran  tentang adanya permasalahan yang terjadi dan  tanggung jawab dalam mengambil keputusan. Tujuan dari penelitian ini adalah menganalisis co-management sumberdaya pesisir di Kepuluan Karimunjawa dengan melibatkan seluruh pemangku kepentingan yang terkait.. Data penelitian dikumpulkan pada bulan April 2018 dengan melakukan observasi dan wawancara mendalam terhadap informan kunci dengan jumlah 140 orang yang terdiri dari terdiri atas pelaku usaha, pemerintah dan masyarakat dan akademisi. Analisis yang digunakan dalam penelitian ini dengan menerapkan konsep co-management dengan melihat dari 11 kondisi kunci. Hasil analisis co-management menunjukan perlunya dilakukan kerjasama antara pihak akademisi, pelaku usaha, masyarakat dan pemerintah  dengan hasil jumlah skor rata-rata 3,17 yang menunjukan bahwa keberhasilan pendekatan kemitraan sumberdaya perikanan di Kepulauan Karimunjawa dalam kondisi cukup.   The activity of uncontrolled utilization of coastal resources causes pressure on ecological sustainability. One of the solutions to this problem is through the partnership of all stakeholders, with awareness the problems that occur and the responsibility for making decisions. The purpose of this study was to analyze the co-management of Coastal Resources in Karimunjawa Island by involving all relevant stakeholders. The research data was collected in April 2018 by conducting in-depth observations and interviews with key informants with 140 people consisting of according to business needs , government and society and academics. The analysis used in this study used the management concept together with looking at 11 key conditions. The results of co-management analysis indicate the need for cooperation between academics, businesses, communities and the government with the results of an average score of 3.17 indicating that it is related to partnerships in the Karimunjawa Islands in sufficient condition. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22434 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6850 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Feeding habit study of Pelagic Fish which Caught in the Area of seagrass with different densities in Pulau Panjang, Jepara Widyorini, Niniek Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Seagrass bed on the shallow water area is a very important ecologically. It plays very important roles to the life of many kinds of fish, such as: as the nursery ground, feeding ground, spawning ground or just passing by. Of course, type and species of the fish itself will influence it. The growth of some individual and population highly related with the food existence in the area where they live. This research aimed to discover the food habit of pelagic fish, which caught in the seagrass area with different densities. The research was carried out for 2 months (July – August 2004). The research method that used was descriptive method, which had case study character. The sampling method to catch the fish was done using purposive sampling method . The determination of the research location was carried out with the mapping, which divided the seagrass area into 3 sampling stations based on its densities, which were high, medium and low density. The fish was caught using Gill net  with 0.5 inch in mesh size. Based on the food habit analysis of food proportion that was obtained in the fish gut, the phytoplankton from the cyanophyta class was largely found. It caused by the high abundance of phytoplankton form this class in the waters. Meanwhile, the zooplankton group that dominated the waters was from entomostraca class. Most of the catched fish in three stations with different densities were omnivore. Ke y Word : Feeding Habit, Area of Seagrass, Pulau Panjang Jepara Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6850 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/51838 2025-03-26T06:43:10Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/24863 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200430 2020 eng " 2549-0885 1858-4748 dc RESPON PERTUMBUHAN IKAN BAWAL (Colossoma macropomum) YANG DIBERI PAKAN TEPUNG LEMNA (Lemna minor) HASIL FERMENTASI (Growth Respons Of Pomfret Fish (Colossoma macropomum) Fed by Fermented Lemna (Lemna minor) Powder) Mose, Numisye Iske Program studi Teknologi Budidaya Ikan, Politeknik Negeri Nusa Utara Manganang, Yessi Ayu Putri Program studi Teknologi Budidaya Ikan, Politeknik Negeri Nusa Utara fermented lemna, fish feed, pomfret fish, growth Dalam pemanfaatan Lemna minor sebagai bahan baku pakan ikan terkendala dengan nilai kasarnya yang tinggi sehingga menghambat pencernaan dan penyerapan nutrisi dalam saluran pencernaan ikan. Teknologi tepat guna yang dapat mengatasi masalah tersebut adalah fermentasi. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan tepung lemna fermentasi terhadap pertumbuhan dan rasio konversi pakan ikan bawal. Ikan yang digunakan dalam penelitian ini adalah ikan bawal berukuran 3-5 cm dipelihara selama 35 hari dan diberikan pakan secara at satiation sebanyak dua kali sehari. Perlakuan lemna fermentasi diberikan pada 4 dosis yaitu (0, 10, 20, 30)%/kg pakan. Hasil penelitian menunjukkan bahwa penambahan lemna fermentasi 20% dapat meningkatkan pertumbuhan ikan bawal, namun  pada penambahan lemna fermentasi 30% pertumbuhan ikan bawal cenderung turun. Kesimpulan yang ditarik dari penelitian ini adalah dosis lemna fermentasi 20% merupakan dosis terbaik secara deskriptif dengan nilai laju pertumbuhan spesifik 3,7%/hari, rasio konversi pakan 19,14 dan sintasan hidup 100%.   Using Lemna minor as fish feed ingredients constrained by its crude fiber which inhibits the digestive and absorption abilities in the fish digestive systems. The appropriate technology that could overcome this problem is fermentation. The aim of this study was to evaluate fermented lemna supplemented in artificial feed on the growth rate and conversion feed ratio of pomfret fish. Experimental fish used was pomfret fish at the initial size of 3-5 cm and was reared for 35 days and fish were fed twice a day at satiation. The study consists of four dosage (0,10,20,30)%/kg of artificial feed. The results of this study indicates a supplementation of fermented lemna 20% could increase growth performances of pomfret fish although on supplementation of fermented lemna 30% growth performances had a lower growth. The conclusions are supplementation fermented lemna 20% is the best descriptive dosage with a growth specific rate 3,7%/days, feed conversion ratio 19,14 and survival rate 100% of pomfret fish.. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/24863 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8105 2015-06-29T01:16:29Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc PENERAPAN TUNGKU SIERRA LEONE SEBAGAI ALTERNATIF PENGENTASAN KEMISKINAN PADA SENTRA PENGASAPAN MANGUNHARJO SEMARANG (The Application of Sierra Leone Furnace as an Alternative to Poverty Reduction at the Center of Smoking Mangunharjo Semarang) Setyo W., Agus Tri Program Studi Teknologi Hasil Perikanan FPIK-UNDIP Semarang Sumartini, Sumartini Program Studi Teknologi Hasil Perikanan FPIK-UNDIP Semarang Syarifuddin, M. Fakultas Kesehatan Masyarakat UNDIP Semarang Swastawati, Fronthea Jurusan Perikanan FPIK-UNDIP Semarang Penelitian pengasapan ikan dengan membandingkan tungku sierra leone dengan tungku tradisional telah dilakukan. Metode yang digunakan dalam penelitian pengasapan ikan adalah studi kasus dan eksperimental laboratories. Produk ikan asap yang dihasilkan dari tungku sierra leone dan tungku tradisional dianalisis berdasarkan parameter uji TPC, kandungan phenol dan analisa proksimat (kadar protein, kadar lemak, kadar air,kadar garam, abu, serta water activity). Selain itu juga dilakukan pengamatan organoleptik meliputi kenampakan, bau, rasa, dan konsistensi. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penggunaan tungku asap tradisional dengan konstruksi yang berbeda pada kualitas dan karakteristik fisik (analisis kimia proksimat dan sensorik) dari berbagai jenis bahan baku ikan yang berbeda. Dua metode pengasapan yang digunakan dalam penelitian ini adalah pengasapan panas (hot smoking) dengan perbedaan lama waktu pengasapan (0.5 jam dan 2 jam). Sebelum pengasapan, ikan direndam dalam garam 10% selama 30 menit. Temuan dari penelitian ini menunjukkan ada perbedaan signifikan pada penggunaan tungku tradisional yang berbeda. Hasil dari parameter sensori kedua tungku secara keseluruhan dalam batas penerimaan panelis. Penggunaan tungku tradisional dan sierra leone pada parameter mikrobiologi (TPC) pada 5 jenis ikan (Pari, Manyung, Kurisi, Lele, Bandeng) terdapat perbedaan yang signifikan, begitu juga dengan parameter proksimat. Kata kunci : Alat pengasap, sistem pengasapan, kualitas, ikan asap   The research of smoking fish by comparing the furnace of sierra leone with a traditional furnace has been done. The methods used in the research of smoking fish is case study and experimental laboratories. Smoked fish product which produced from the furnace of sierra leone and a traditional furnace are analyzed based on the parameter test of TPC, the content of phenols and proksimat analysis (protein content, fat content, water content, salt content, ash, and water activity). Besides that also done observation organoleptik includes appearance, smell, taste and consistency. The purpose of this research is to know the effect of use a traditional smoke furnace with different construction on quality and physical characteristics (proximate chemical analysis and sensory) from various raw materials of different spesies fish. Two methods smoking which used in this research are hot smoking with differences in the length of time smoking (0.5 hours and 2 hours). Before smoking, fish is soaked in salt 10% for 30 minutes. Findings from this research show that there is significant difference in the use of different traditional furnace. The result of the parameter sensory both furnace overall in the acceptance boundaries of panelists. The use of a traditional and sierra leone  furnace on the microbiological parameter (TPC) on 5 kinds of fish there is a significant difference as well as with the proximate parameters Key words : Smoking instrument, smoking system, quality, smoked fish Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8105 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/6789 2025-04-26T12:40:12Z saintek:RSA

nmb a2200000Iu 4500 "080822 2008 eng " 2549-0885 1858-4748 dc PERTUMBUHAN BAKTERI PROBIOTIK Alkaligenus sp. DAN Flavobacterium sp. YANG DIISOLASI DARI USUS UDANG PADA MEDIA KULTUR MOLASE DAN KAOLIN Suminto, Suminto Staf Pengajar Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Penelitian ini bertujuan untuk mengetahui konsentrasi tetes tebu (molase) dan tepung kaolin yang tepat untuk media kultur massal bakteri Alkaligenes sp. dan Flavobacterium sp. pada kondisi lingkungan (suhu, salinitas, dan pH) yang terbaik bagi pertumbuhan. Metoda yang digunakan pada penelitian ini adalah eksperimen dengan   3 (tiga) macam perlakuan dan masing-masing dilakukan pengulangan sebanyak 3 (tiga) kali. Perlakuan perbedaan  konsentrasi  molase yaitu M1 (16 gr/mL), M2 (32 gr/mL), dan  M3 (48gr/mL). Sedangkan perlakuan perbedaan konsentrasi tepung kaolin adalah K1 (8 gr/mL), K2 (16 gr/mL), dan K2 (32 gr/mL). Data yang dikumpulkan dalam penelitian ini adalah kelimpahan bakteri yang diukur melalui Opical Density pada spectrofotometer.  Analisa statistik uji varian, uji wilayah  ganda duncan telah digunakan dalam analisa data penelitian ini untuk mengetahui pengaruh perbedaan berbagai kondisi lingkungan media kultur. Hasil penelitian menunjukkan bahwa perlakuan perbedaan konsentrasi molase berpengaruh sangat nyata (p<0,01) terhadap pertumbuhan bakteri Alkaligenes sp. dan Flavobacterium sp. Pada perlakuan perbedaan konsentrasi tepung kaolin menunjukkan adanya pengaruh yang sangat nyata (P<0,01) terhadap pertumbuhan bakteri Alkaligenes sp., tetapi tidak berpengaruh nyata terhadap pertumbuhan bakteri Flavobacterium sp.   Kata Kunci : Bakteri probiotik, pertumbuhan, jenis media, kondisi lingkungan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6789 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/46693 2025-04-15T07:52:27Z saintek:RSA

nmb a2200000Iu 4500 "221223 2022 eng " 2549-0885 1858-4748 dc Nisak, Yuyun Khoirun Department of Aquatic Resources Management, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Solichin, Anhar A’in, Churun Hutan Mangrove Pasar Banggi, Rembang difungsikan sebagai tempat wisata yang terkenal dengan sebutan “Jembatan Merah”. Sejak September 2021 wisata ini dibuka kembali sebagai wisata Percontohan selama Covid-19. Adanya pandemi tentu akan mempengaruhi sektor perekonomian sehingga perlu dilakukan analisis valuasi ekonominya. Tujuan Penelitian ini adalah mengetahui valuasi ekonomi kegiatan wisata di Jembatan Merah selama masa percontohan dalam kurun waktu September sampai Desember 2021 serta mengetahui daya dukung kawasan tersebut. Penelitian ini bersifat studi kasus, metode analisis data yang digunakan adalah Travel Cost Method (TCM) dan Willingness To Pay (WTP) untuk kegiatan pariwisata, serta Daya Dukung Kawasan (DDK) untuk menghitung daya tampung wisatawan per hari. Penentuan jumlah responden menggunakan metode Slovin, pemilihan responden wisatawan menggunakan accidental sampling, dan responden kunci pengelola menggunakan purposive sampling. Valuasi ekonomi kegiatan wisata di Jembatan Merah selama masa Percontohan berdasarkan TCM adalah Rp2.250.183.933,00 dan total WTP sebesar Rp87.102.800,00. Rata-rata WTP Rp5.680,00, data ini dapat digunakan sebagai acuan pengadaan tiket masuk dan parkir. Daya dukung kawasan yaitu 243 orang/hari, kunjungan wisatawan di Jembatan merah 19.771 (67,78%) belum melebihi DDK (29.139 orang selama masa percontohan) namun sudah melebihi 50% dari aturan. Estimasi valuasi ekonomi selama masa percontohan di Jembatan Merah sesuai dengan DDK yaitu Rp4.275.716.312,00. Covid-19 mempengaruhi nilai ekonomi hampir 50% dari DDK hal ini dikarenakan adanya aturan physical distancing.   Mangrove Forest Pasar Banggi, Rembang functioned as a tourism known as the "Jembatan Merah". Since September 2021 this tour has been reopened as a pilot tour during Covid-19. Pandemic will certainly affect the economic sector so it is necessary to analyze its economic valuation. The purpose of this study was to determine the economic valuation during a pilot tourism from September 2021 to December 2021  and area carrying capacity. This research base on case study, with data analysis used is the Travel Cost Method (TCM) and Willingness To Pay (WTP) for tourism activities, Area Carrying Capacity (DDK) to calculate the tourist capacity in a day. Determination of respondents number using Slovin, while the selection of tourist respondents using accidental sampling, and to determine the key respondents as manager is purposive sampling. The economic valuation of tourism activities at Jembatan Merah during the pilot period based on the TCM method was IDR 2.250.183.933 and the WTP method was 87.102.800 IDR. The average WTP IDR 5.680 can be used as a reference for parking and entry fee. DDK is 243 people/day,  tourist visits to Jembatan Merah 19.771 (67,78%) have not exceeded DDK (29,139 people during the pilot tour) but have exceeded 50% from rules.The estimated economic valuation during the pilot period at Jembatan Merah is in accordance with DDK, which is 4.275.716.312 IDR. Covid-19 affects the economic value of almost 50% of DDK, this is due to physical distancing rules Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-02-10 02:56:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/46693 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 4 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33296 2021-04-21T11:21:16Z saintek:RSA

nmb a2200000Iu 4500 "201023 2020 eng " 2549-0885 1858-4748 dc THE EFFECT OF ADDITION SWIMMING CRAB SHELLS FLOUR (Portunus pelagicus) FOR PHYSICAL AND CHEMICAL QUALITY OF EDIBLE SPOON Annafiz, Mohammad Rosikhul Ilmi Hussein Department of Fisheries Food Technology, Faculty of Fisheries and Marine Sciences, Diponegoro University Dewi, Eko Nurcahya Department of Fisheries Food Technology, Faculty of Fisheries and Marine Sciences, Diponegoro University https://scholar.google.co.id/citations?user=coM5mhkAAAAJ&hl=en Purnamayati, Lukita Department of Fisheries Food Technology, Faculty of Fisheries and Marine Sciences, Diponegoro University Alginate; biodegradable; calcium; edible spoon; swimming crab shells Edible spoon product is a spoon-shaped cutlery that is fit to be eaten, this product was developed with the addition of alginate, however, it required high-cost raw material. Swimming crab shells were potential waste from underused swimming crabs which contained calcium carbonate (CaCO3) to strengthen the tissues, sources of calcium minerals, and formed edible spoon mixture.  Swimming crab shells flour was the addition to the physicochemical quality of edible spoon and the best concentration for the product. This research utilized a completely randomized design (CRD) with different concentrations of swimming crab shell flour (0%, 8%, 10%, and 12%). The data were carried out with ANOVA and Tukey's HSD. The results showed that the addition of different swimming crab shell flour concentrations has a significant effect (P<5%) on the hardness parameters, melting time, hedonic properties, protein content, moisture content, carbohydrate content, and ash content except on fat content. The best concentration was 12% swimming crab shells flour with a hardness value of 10.32 ± 0.60 kgf, melting time of 15.02 ± 0.44 minutes, moisture content of 2.65 ± 0.24%, protein content of 8.31 ± 0.23%, carbohydrate content of 83.64 ± 0.29% , fat content of 1.42 ± 0.40% and ash content of 3.66 ± 0.06%. Edible spoon preferably has a hedonic value of 7.97 <µ <8.37 for appearance, odor, taste, and texture parameters. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33296 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8122 2015-06-30T05:07:41Z saintek:RSA

nmb a2200000Iu 4500 "140225 2014 eng " 2549-0885 1858-4748 dc PENENTUAN UMUR SIMPAN (SHELF LIFE) PUNDANG SELUANG (Rasbora sp) YANG DIKEMAS MENGGUNAKAN KEMASAN VAKUM DAN TANPA VAKUM (Determination of Pundang Seluang (Rasbora sp) Shelf Life which Packed using Vacuum and Non Vacuum Packaging) Harris, Helmi Fakultas Perikanan Universitas PGRI Palembang Fadli, M. Fakultas Perikanan Universitas PGRI Palembang Umur simpan (shelf life) produk pangan merupakan salah satu informasi yang sangat penting bagi konsumen. Pencantuman informasi umur simpan menjadi sangat penting karena terkait dengan keamanan produk pangan dan untuk memberikan jaminan mutu pada saat produk sampai ke tangan konsumen. Penelitian ini bertujuan untuk menentukan umur simpan (shelf life) Pundang seluang yang dikemas menggunakan kemasan vakum dan tanpa vakum  dengan Metode Simulasi Model Plotting untuk menentukan laju penurunan mutu. Umur simpan yang diperoleh dapat dicantumkan pada desain kemasan Pundang seluang. Penentuan umur simpan (shelf Life) Pundang Seluang ini dilaksanakan dalam dua tahap. Tahap pertama merupakan penelitian pendahuluan untuk mengetahui titik kritis mutu dominan Pundang seluang (uji kadar air dan kadar Thio Barbituric Acid). Tahap kedua yaitu Penelitian utama merupakan tahap perhitungan nilai parameter umur simpan Pundang seluang. Penelitian Utama menggunakan Rancangan Acak Kelompok (RAK) yang disusun secara faktorial. Faktor Pertama adalah cara pengemasan (V) yang terdiri dari 2 taraf perlakuan yaitu : V1 : kemasan vakum V2 : kemasan tanpa vakum. Faktor kedua adalah variasi suhu (T) yang terdiri dari 3 taraf perlakuan yaitu T1 : Suhu (20 0C), T2 : Suhu Ruang Harian (30 0C), T3 : Suhu (40 0C). Hasil penelitian menunjukkan bahwa berdasarkan pengamatan secara visual (uji sensoris) terhadap Pundang seluang selama 36 hari pengamatan pada suhu ruang 30 0C mulai terjadi kerusakan pada pengamatan hari ke-33. Model matematik laju peningkatan kadar air pada kemasan tanpa vakum adalah k= 0,5781.e1,459 (1/T) dengan laju penurunan mutu k= 0.058% per hari dengan umur simpan selama 88.28 hari atau 2.942 bulan. Sedangkan model matematik laju peningkatan kadar air dengan kemasan vakum adalah k= 0.4529.e0.322 (1/T) dengan laju penurunan mutu k= 0.045% per hari, dengan umur simpan selama 113.78 hari atau 3.792 bulan. Masa simpan Pundang seluang yang dikemas vakum (113.78 hari) > kemasan tanpa vakum (88.28 hari) > tanpa kemasan (33.0 hari). Kata kunci : Umursimpan, pundang seluang, kemasan vakum, kemasan tanpa vakum, metode simulasi model plotting, mutu dominan.   Shelf life of food products is one of the most important information for consumers. Food products shelf life information is very important because associated with the safety of food products and to provide quality assurance the product reaches the consumer. The objective of this research is to determine the shelf life of Pundang Seluang which packed using vacuum and non vacuum packaging by Plotting Model Simulation Method for determination the rate of quality decreasing. The shelf life information which obtained could included on Pundang seluang packaging design. This research is conducted in two stages. The first stage was a preliminary research to find out the critical point of dominant quality of Pundang seluang (water contain and TBA contain tests). The second stage is the main research which was the calculation stage of parameter value of shelf life of Pundang seluang. Preliminary research using Factorial Completely Randomized Block Design. First factor is the packaging method (V) which consists of two levels namely V1: vacuum packaging and V2 : non vacuum packaging.  The second factor is the variation of temperature (T) which consists of 3 levels namely T1: 20 0C, T2: Daily room temperature (300C), T3: 40 0C.The research shows that based on visual observation (sensory test) of Pundang seluang for 36 days at room temperature 30 0C, Pundang seluang has shown the deterioration less than 33 days of storage time. The rate of increasing of water content with non vacuum packaging based on determination the shelf life with acceleleration method which obtained from mathematical model calculation  k =  is 0.058% per day, with shelf life of 2.942 months. The rate of increasing of water content with vacuum packaging based on determination the shelf life with acceleleration method which obtained from mathematical model calculation  k = is 0.045% per day, with shelf life of 3.792 months. Shelf life of Pundang seluang if using vacuum packaging (113.78 days) > non vacuum packaging (88.28 days) > without packaging (33.0 days). Key words: Shelf life, Pundang seluang, Vacuum packaging, Non vacuum packaging, Plotting Model Simulation Method, dominant quality Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 13:33:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8122 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 2 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2065 2020-12-07T08:06:56Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc The Used of Different Culture Medium Effect on The Growth Of Chlorella Sp Chilmawati, Diana Program Studi Budidaya Perairan Jurusan Perikanan Fakultas Perikanan dan Kelautan Universitas Diponegoro Jl. Hayam Wuruk No. 4A Semarang 50241 The effort of aquaculture especially in the brackish and marine water becomes more develope,. That development cannot be separated from seeding phase. To sufficient the needed of seed, it is needed seed aquaculture by giving sufficient and quality life food, because it cannot be replace yet by the imitation food on the early of larvae seedling. One of the life food is Chlorella sp that given to zooplankton variety directly to the fish or shrimp cultivan. Therefore the Walne, Guillard’s f/2, and Erdschreiber culture mediums are suitabel medium used to phytoplankton culture.  The purpose of this research is to know the influence of medium of usage of Walne, Guillard’s f/2, and Erdschreiber on the growth of Chlorella. Also to know the best medium from those three medium on the growth of Chlorella sp the research was Laboratories experimental character. The effort scheme used is completely randomized design 3 treatments and 3 times repetitions,  Those 3 treatments are as follows: A. Walne Medium, B. Guillard’s f/2 Medium, and C. Erdschreiber Medium. The result of the research shows that the used of different culture medium effect on the growth of Chlorella sp, that is significant difference (P<0,05) on the Lag Phase time with best treatment B (0,290 days), great significant difference (P<0,01) on the specific growth rate with best treatment B (0.655). Thus on the maximum density and final density (on Log No. sel/mL) is great significant differences with best treatment B (Guillard’s f/2) each are 7.931 and 6.443. The best medium for Chlorella sp. from those three mediums used in this research is Guillard’s f/2 medium.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Key Words : medium, culture, growth, Chlorella sp Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2065 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/43643 2025-04-15T07:39:12Z saintek:RSA

nmb a2200000Iu 4500 "230831 2023 eng " 2549-0885 1858-4748 dc Haryani, Nisrina Septi Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Hartoko, Agus Ayuningrum, Diah Rawa Pening terletak di Jawa tengah adalah danau terbentuk alami melalui proses letusan vulkanik yang mengalurkan lava basalt dan menyumbat aliran Kali Pening daerah Tuntang yang berakibat lembah pening yang berhutan tropik berubah menjadi rawa. Ikan Endemik atau ikan asli yang terdapat di Rawa Pening yaitu ikan Wader. Penelitian di Danau Rawa Pening pada tahun 2006 diketahui memiliki keanekaragaman ikan Wader yaitu Wader Pari (R. lateristriata), Putih (R. jacobsoni), Andong (B. canchonius), Cakul (P. binotatus) dan Ijo (O. vittatus). Pentingnya untuk mengidentifikasi secara morfologi dan molekuler dikarenakan ikan Wader ini terdapat banyak jenis di Rawa Pening sebagai bahan inventarisasi data spesies ikan dan untuk mengetahui hubungan filogenetik pada area Danau Rawa Pening. Tujuan penelitian ini adalah untuk mengetahui informasi mengenai jenis spesies ikan Wader di Rawa Pening berdasarkan perbandingan morfologi teknik morfometri dan molekuler teknik DNA Barcoding dan hubungan filogenetik serta tingkat keragaman genetiknya. Penelitian ini dilaksanakan pada bulan Maret-Oktober 2021. Metode yang dilakukan meliputi analisis morfologi dari morfometri dan meristiknya, analisis molekuler dengan DNA barcoding, serta analisis data menggunakan software MEGA-X dan dnaSP. Hasil penelitian didapatkan ikan 33 individu, kemudian analisis morfologi dan molekuler dapat diketahui 3 spesies ikan yaitu kode W.P yaitu ikan Lumajang (Cycloceilichthys enoplos) dengan kemiripan sebesar 97,65%, kode W.I yaitu ikan Wader Ijo (Osteochilus vittatus) dengan kemiripan sebesar 100%, dan kode W.B yaitu ikan Wader Bintik Dua (Barbodes binotatus) dengan kemiripan sebesar 99,83%. Nilai keragaman genetik sampel ikan wader yang didapatkan di Danau Rawa Pening sebesar 0,8333 termasuk kedalam kategori keragaman genetik tinggi. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-08-31 14:43:36 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/43643 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 2 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/32908 2022-04-19T17:30:27Z saintek:RSA

nmb a2200000Iu 4500 "201226 2020 eng " 2549-0885 1858-4748 dc Solichin, Anhar Program Studi Manajemen Sumberdaya Perairan Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Saputra, Suradi Wijaya Taufani, Wiwiet Teguh Ayuningrum, Diah Wilayah pesisir merupakan ekosistem unik bagian dari habitat vital bagi biota pesisir, laut, dan darat. Lokasi penelitian di pantai utara Jawa Tengah mencakup Tegal hingga Kendal. Investigasi terbaru menunjukkan bahwa keanekaragaman hayati laut mungkin jauh lebih tinggi dari perkiraan sebelumnya termasuk udang yang penting secara ekonomi. Tujuan penelitian ini adalah untuk mengetahui keanekaragaman genetik spesies udang di perairan pantai utara Jawa yang meliputi daerah Kendal, Batang, Pekalongan, Pemalang, Tegal dan Brebes. Metode yang digunakan yaitu deskriptif eksploratif, dengan teknik sampling yaitu simple random sampling. Identifikasi molekuler udang menggunakan marga molekuler gen Cytochrome Oxydase I (COI).  Hasil sampling diperoleh masing-masing satu sampel udang yang diidentifikasi secara molekuler dari masing-masing daerah, yakni MT1, MB3, MR7, MP9, MB11 dan MLT13. Berdasarkan hasil amplifikasi gen COI diperoleh data panjang basepair dari keenam sampel udang yakni sekar 400-500 bp. Hasil sekuensing dan penyejajaran di fitur BLAST (https://www.ncbi.nlm.nih.gov/) menunjukkan bahwa keenam sampel udang termasuk ke jenis Fenneropenaeus merguiensis KP637168.1 dengan tingkat kesamaan bervariasi dari 91-95%. Tingkat kesamaan terendah diperoleh dari sampel udang asal Pekalongan dan Tegal, sementara yang tertinggi berasal dari Brebes. Dengan demikian, perlu dilakukan penelitian lebih lanjut apakah kelima sampel udang dari daerah yang berbeda-beda terkait filogenetiknya.       The coastal area of the ecosystem is a unique part of the vital habitat for coastal, marine and terrestrial biota. Research locations on the north coast of Central Java include Brebes to Kendal. Recent investigations suggest that marine biodiversity may be much higher than previously estimated including economically important shrimp. The purpose of this study was to see the diversity of species in the northern coastal waters of Java, including the Kendal, Batang, Pekalongan, Pemalang, Tegal and Brebes areas. The method used is descriptive exploratory, with the sampling technique is simple random sampling. Molecular identification of shrimp using the molecular genus Cytochrome Oxydase I (COI). In this paper, we examine the biodiversity of shrimp species using the COI gene molecular channel. Sampling results obtained from one sample determined molecularly from each area, namely MT1, MB3, MR7, MP9, MB11 and MLT13. Based on the results of COI gene amplification, base pair length data obtained from the six shrimp samples, namely around 400-500 bp. The sequencing and alignment regard in the BLAST feature (https://www.ncbi.nlm.nih.gov/) shows that the six shrimp samples belong to the type. Results show that Fenneropenaeus merguiensis KP637168.1 with 92% is found in Kendal, and Batang; Pekalongan, Pemalang, Tegal, and Brebes with a difference level of 91-95%. Levels can be obtained from shrimp samples from Pekalongan and Tegal, while the highest comes from Brebes. Thus, it is necessary to carry out further research whether the five shrimp samples from different areas are related to their phylogenetics. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/32908 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9327 2015-10-27T11:05:04Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc STRATEGI PENGEMBANGAN EKOWISATA MELALUI KAJIAN EKOSISTEM MANGROVE DI PULAU PRAMUKA, KEPULAUAN SERIBU (Ecotourism Development Strategy with Mangrove Ecosystem Studies at Pramuka Island, Kepulauan Seribu) Putra, Aditya Cahya Magister Ilmu Lingkungan Universitas Diponegoro Semarang Anggoro, Sutisno Doktoral Manajemen Sumberdaya Pantai Program Pascasarjana Universitas Diponegoro Semarang Kismartini, Kismartini Magister Ilmu Lingkungan Universitas Diponegoro Semarang ABSTRAK Tingginya tingkat abrasi dan gelombang berdampak pada penurunan kualitas lingkungan ekosistem pesisir yang mengakibatkan sejumlah kawasan mangrove semakin berkurang bahkan rusak, sehingga perlu upaya pengembangan ekowisata mangrove melalui kegiatan ekowisata sebagai salah satu cara melestarikan ekosistem pesisir. Penelitian ini bertujuan untuk mengetahui kondisi dan potensi lingkungan mangrove di Pulau Pramuka; mengkaji kesesuaian dan daya dukung ekowisata di kawasan mangrove di Pulau Pramuka; serta menyusun penetapan arahan strategi pengembangan ekowisata mangrove. Metode penelitian merupakan penelitian studi kasus menggunakan deskriptif analitik melalui pendekatan kuantitatif dan kualitatif dengan analisis kualitas lingkungan mangrove, kualitas perairan dan sedimen magrove, kesesuaian ekowisata, daya dukung ekowisata dan SWOT untuk memberikan informasi tentang potensi dan strategi pengelolan hutan mangrove secara berkelanjutan. Hasil penelitian menunjukkan Pulau Pramuka yang merupakan wilayah pesisir memiliki hutan mangrove dengan jenis mangrove Rhizophora stylosa dengan kualitas lingkungan yang sesuai untuk karakteristik pertumbuhan dan adaptasi mangrove. Memiliki kesesuaian layak untuk dikembangkan sebagai kawasan ekowisata mangrove dengan Nilai Kesesuaian Ekowisata (NKE) sebesar 279 dan daya dukung maksimal ekowisata sebanyak 114 orang/hari dengan alternatif kegiatan yang dapat dilakukan diataranya wisata alam dan wisata bahari. Berdasarkan hasil analisis SWOT didapatkan 5 prioritas strategi untuk pengembangan ekowisata mangrove di Pulau Pramuka diantaranya: a). koordinasi antara masyarakat sekitar dengan stakeholder yang dimulai dengan perencanaan, sosialisasi, pelaksanaan dan pemantauan konsep pengembangan ekowisata mangrove; b). penataan kembali ruang untuk kegiatan ekowisata, perbaikan insfrastruktur, jaringan air bersih, pembangunan MCK umum, sistem pengolahan dan pembuangan sampah, serta unit usaha penunjang kebutuhan wisatawan; c). memberikan pengetahuan kepada masyarakat mengenai pengelolaan dan pelatihan manajemen pemasaran ekowisata mangrove yang efektif dan produktif; d). studi kajian analisis dampak kegiatan wisata terhadap kondisi lingkungan dan pertumbuhan vegetasi mangrove dengan pemantauan secara berkala dan berkelanjutan; dan e). menggali potensi wisata alam dan bahari dengan pembinaan wisata kepada masyarakat dan melengkapi pengadaan sarana dan prasarana wisata. Kata kunci : ekowisata, ekosistem mangrove, Pulau Pramuka, SWOT   The high level of abrasion and wave impact on the environmental and coastal ecosystems had resulting in mangrove ecosystem degradation. Thereforeit is necessary to develop efforts for mangrove ecosystem ecoturism development. The study aims to determine the condition and potential of the mangrove environment In Pramuka Island; examining the suitability and carrying capacity of mangrove ecotourism in Pramuka Island; to determine strategic and suitable policy formangrove ecotourism development.The research method was a case study using descriptive analysis through quantitative and qualitative approaches to analyse the quality of mangrovecondition, water quality, sediment suitability level for ecotourism, and mangrove SWOT carrying capacity as baseline data for the sustainable management of mangrove ecosystem. The results showed in Pramuka Island the coastal areas with mangrove forests Rhizophora stylosawith quality suitable environment for the growth and adaptation of mangrove characteristics. Having a proper suitability to be developed as a tourist area of mangrove with suitability value of ecotourism for 279 and a maximum carrying capacity of ecotourism as much as 114 people per day with alternative activities such as nature and marine tourism. Based on the results of the SWOT analysis obtained five strategic priorities for development of ecotourism in the Pramuka Island mangroves include: a). coordination between the local community and stakeholders with socialization, planning, implementation and monitoring of mangrove ecotourism development concept; b). relocation for ecotourism activities, improvement of infrastructure, clean water, construction of public toilets, waste treatment and disposal systems, as well as supporting business unit needs; c). provide knowledge to the community about management and marketing, training for mangrove ecotourism effectivity and productivity  d). any study on the analysis of impact of tourism activities on the environmental conditions and the growth of mangrove vegetation with periodic and continuous monitoring; and e). explore the potential of nature and marine tourismcoaching community and tourist to complement the provision of means of tourist. Keywords : Ecotourism, Mangrove Ecosystem, Pramuka Island, SWOT Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9327 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2776 2020-09-17T10:49:07Z saintek:RSA

nmb a2200000Iu 4500 "100814 2010 eng " 2549-0885 1858-4748 dc Growth and Survival Rate of Cyprinus carpio Linn Juvenile on Different Concentration of Regent 0.3 g Pesticide Rudiyanti, Siti Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Ekasari, Astri Diana Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Pesticide usage in agriculture activities which had been wasted into water environment affect to waters and organism quality. This study tried to investigate growth and survival rate of Cyprinus carpio Linn juvenile that had been exposured by pesticide and running at November 2006 – January 2007 in Center of Fish Hatchery Ungaran, Semarang. Thus, 0.7 – 0.8 gram of fishes were tested on media that contained Regent 0.3 pesticides which has fipronil 0.3% active compound. Furthermore, this study has several steps which are determination of concentration range test, definitive test to determine LC50-96 h and sublethal toxicity test. Result of determination of concentration range test showed that fipronil pesticide has low-level limit concentration 0.1 mg/L and up-level limit concentration 10 mg/L. Definitive test showed that LC50-96 h was 0.84 mg/L. Result of sublethal toxicity test showed that pesticide which has fipronil active compound with different concentrations (0.000 mg/L; 0.084 mg/L; 0.168 mg/L; 0.252 mg/L; 0.336 mg/L) significantly affect to growth and survival rate of tested fish. In addition, water quality during this study period showed that all parameters were suitable for tested fish.   Keywords: Fipronile, Cyprinus carpio juvenile, growth, survival Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 09:56:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2776 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 1 (2009): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/65566 2025-04-15T08:29:33Z saintek:RSA

nmb a2200000Iu 4500 "240805 2024 eng " 2549-0885 1858-4748 dc Prakoso, Kukuh Haeruddin, Haeruddin Rahman, Arif Ekosistem lamun merupakan salah satu ekosistem yang produktif dan mendukung kehidupan masyarakat di pesisir yaitu, dengan memanfaatkan biota ekonomis yang hidup di ekosistem lamun untuk dijual maupun dikonsumsi pribadi. Penelitian ini bertujuan untuk mengidentifikasi sumber daya lamun dan pola pemanfaatannya. Metode yang digunakan dalam penelitian ini adalah metode survei. Pengambilan data lamun menggunakan transek kuadrat berukuran 50x50cm dan pengambilan data sosial dengan metode wawancara menggunakan kuesioner di dua desa di Perairan Mlonggo Kabupaten Jepara. Hasil penelitian menunjukan ada empat jenis lamun yang ditemukan diantaranya Enhalus acoroides Thalassia. Hemprichii, Oceana serrulata, Cymodocea rotundata. Nilai tutupan kondisi lamun di Kabupaten Jepara termasuk dalam kategori jarang yaitu dengan nilai tutupan 20,86% di Desa Jambu dan 22,18% di Desa Mororejo. Pola pemanfaatan ekosistem lamun di Desa Jambu dan Mororejo, Kecamatan Mlonggo Kabupaten Jepara memiliki pola pemanfaatan ekosistem lamun yang sama, yaitu ekosistem lamun menjadi tempat untuk nelayan tradisional menangkap biota laut kemudian hasil tangkapannya dijual sebagai sumber pendapatan dan juga sebagian dari hasil tangkapannya di konsumsi pribadi. Mayoritas nelayan tradisional memanfaatkan lamun untuk menangkap ikan dan rajungan, dengan menggunakan alat tangkap jaring dan anco.   Seagrass ecosystem is one of the productive ecosystems and supports the lives of coastal communities, by utilizing biota that live in seagrass ecosystems for sale or personal consumption. This study aims to identify seagrass resources and their utilization patterns. The method used in this research is survey method. Seagrass data were collected using a 50x50cm quadratic transect and social data were collected using an interview method using a questionnaire in two villages in the Mlonggo Waters of Jepara Regency. The results showed that there were four types of seagrasses found including Enhalus acoroides Thalassia. Hemprichii, Oceana serrulata, Cymodocea rotundata. The cover value of seagrass conditions in Jepara Regency is included in the sparse category with a cover value of 20.86% in Jambu Village and 22.18% in Mororejo Village. The pattern of seagrass ecosystem utilization in Jambu and Mororejo Villages, Mlonggo District, Jepara Regency has the same seagrass ecosystem utilization pattern, namely the seagrass ecosystem becomes a place for traditional fishermen to catch marine biota then the catch is sold as a source of income and also some of the catch is for personal consumption. The majority of fishermen utilize seagrass to catch fish and crab with nets and anco fishing gear. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/65566 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 2 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/36950 2021-11-30T11:46:09Z saintek:RSA

nmb a2200000Iu 4500 "210828 2021 eng " 2549-0885 1858-4748 dc Mayu, Dersi Herka Program Pascasarjana Manajemen Sumberdaya Pantai, Universitas Diponegoro Kurniawan, Kurniawan Wijayanto, Dian Bambang, Azis Nur Tingginya permintaan akan sumberdaya rajungan serta akibat dari kondisi open access akan menimbulkan dampak negatif yang mengarah ketidak efisiensi secara penangkapan maupun ekonomi. Langkah dalam pengelolaan perikanan agar tetap berkelanjutan dan memperoleh manfaat ekonomi secara optimal adalah dengan perlu memperhatikan hubungan antara upaya penangkapan berdasarkan aspek biologi dan ekonomi. Penelitian ini bertujuan untuk mengetahui potensi dan menentukan tingkat pengelolaan sumberdaya rajungan (Portunus pelagicus) di perairan Provinsi Kepulauan Bangka Belitung. Metode penelitian menggunakan metode deskriptif dengan analisis kuantitatif pendekatan model bioekonomi model Gordon-Schaefer. Hasil penelitian menunjukkan potensi sumberdaya rajungan pada tahun 2014-2018 mengalami penurunan produksi. Produksi tertinggi terjadi pada tahun 2014 sebesar 9.685 kg sedangkan produksi terendah terjadi pada tahun 2015 sebesar 6.049 kg. Estimasi bioekonomi model Gordon-Schaefer menunjukkan bahwa produksi sumberdaya rajungan pada kondisi MSY tahun 2014-2016 diindikasikan pernah mengalami biological overfishing dikarenakan upaya penangkapan yang berlebihan. Pada kondisi MEY menunjukkan bahwa produksi sumberdaya rajungan pada tahun 2014,2015,2014,2018 diindikasikan pernah mengalami economic overfishing. Jika pada kondisi OAE menunjukkan bahwa pemanfaatan sumberdaya rajungan sudah tidak efisien dan menimbulkan kerugian yang besar diantaranya aspek biologi, lingkungan, sosial dan ekonomi. Pengelolaan yang dapat dilakukan adalah 1) Pengaturan upaya penangkapan yakni pengaturan jumlah trip dan pengaturan pola dan musim penangkapan. 2) Kebijakan dalam pengaturan harga dalam biaya operasional nelayan.   The high demand for blue swimming crab resources and the consequences of open access conditions will have a negative impact that leads to inefficiency both technically and economically. The step in managing the economy in order to remain sustainable and obtain optimal benefits is to pay attention to the relationship between implementation efforts based on biological and economic aspects. This study aims to determine the potential and determination of blue swimming crab (Portunus pelagicus) resource in the Waters of Bangka Belitung Archipelago Province. The research method uses a descriptive method with quantitative analysis of the Gordon-Schaefer bioeconomic model approach. The results showed that the potential of blue swimming crab resources in 2014-2018 decreased in production. The highest production occurred in 2014 at 9,685 kg while the lowest production occurred in 2015 at 6,049 kg. The estimation of the Gordon-Schaefer bioeconomic model shows that the production of blue swimming crab under MSY conditions in 2014-2016 is thought to have occurred biologically overfishing due to excessive effort. MEY conditions indicate that production in 2014,2015,2014,2018 is said to have experienced economic overfishing. If the OAE condition shows that the utilization of blue swimming crab resources is inefficient and causes big losses including biological, environmental, social and economic aspects. The management that can be carried out is 1) Arrangement of regulatory efforts, namely setting the number of trips and setting patterns and seasons. 2) Policy in setting prices in fisherman's operational costs. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/36950 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/69560 2025-04-15T08:15:44Z saintek:RSA

nmb a2200000Iu 4500 "241028 2024 eng " 2549-0885 1858-4748 dc POPULATION STUDIES OF SEA TURTLE IN BA'BATOA LAPEO BEACH POLEWALI MANDAR REGENCY, WEST SULAWESI, INDONESIA Rini, Indri Putri Sekar Makassar Coastal and Marine Resources Management Center Anggara, Dimas Wahyu Makassar Coastal and Marine Resources Management Center Ardy, Ardy Makassar Coastal and Marine Resources Management Center Ardiansyah, Muh. Putra Blue Ocean Conservation Activator Group Jakasukmana, Munandar Makassar Coastal and Marine Resources Management Center Nurdin, Nur Masyitha Makassar Coastal and Marine Resources Management Center Yudiarso, Permana Makassar Coastal and Marine Resources Management Center Jati, Oktavianto Eko Study Program of Management of Aquatic Resources, Department of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Hatching; Nesting; Population; Sea Turtle Sea turtles are marine biota that have an important role in the lives of coastal communities, but their existence has decreased due to threats to their habitat. The protection status of sea turtles has been regulated nationally and internationally, where they are fully protected. One location with potential sea turtle habitat in West Sulawesi is Ba'batoa Lapeo Beach in Polewali Mandar Regency. This is evidenced by the existence of community groups that carry out sea turtle conservation activities. This research analyzes the population of landed sea turtles, analyzes the success rate of hatching sea turtle eggs, and identifies threats that occur in efforts to manage sustainable sea turtle conservation at Ba'batoa Lapeo Beach. Data was collected through collaboration between BPSPL Makassar and the Laut Biru Community Group—the implementation of data collection from April to July 2024 through primary and secondary data collection. Primary data is obtained directly from the results of monitoring by the Laut Biru Community Group. Secondary data is used to describe primary data. Based on the analysis results, the type of sea turtle that landed on Ba'batoa Lapeo Beach was the Olive Ridley Turtle (Lepidochelys olivacea) 42 times. The highest percentage of Olive Ridley Sea Turtle eggs hatching was in July 2024 at 95.54%, while the lowest was in April 2024 at 51.45%. Threats to sea turtle habitat in Ba'batoa Lapeo Beach are abrasion and natural predators such as monitor lizards. The results of this study are expected to optimize the national sea turtle database and become a concern for stakeholders for sea turtle conservation management in West Sulawesi Province. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-11 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/69560 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 3 (2024): SAINTEK PERIKANAN eng Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11137 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150825 2015 eng " 2549-0885 1858-4748 dc BEBERAPA ASPEK BIOLOGI PERIKANAN RAJUNGAN (Portunus pelagicus) DI PERAIRAN BETAHWALANG DAN SEKITARNYA Biological Aspects of Blue Swimmer Crab (Portunus pelagicus) in Betahwalang Waters and Around Ningrum, Valentina Pristya Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ghofar, Abdul Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ain, Churun Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK   Betahwalang merupakan wilayah pesisir dengan mayoritas penduduk yang memanfaatkan sumberdaya rajungan. Oleh karena itu untuk menjaga kelestarian jenis kepiting rajungan diperlukan pengelolaan berkelanjutan dan konservasi, sehingga dibutuhkan informasi yang cukup tentang perkembangan produksi tangkapan nelayan dan ukuran rajungan. Tujuan penelitian ini adalah untuk mengetahui pola pertumbuhan dan hubungan morfometrik rajungan, sex rasio, hubungan morfometrik terhadap fekunditas, serta tingkat kematangan dan indeks  kematangan gonad rajungan. Penelitian ini dilaksanakan pada bulan November 2014-Februari 2015 di Perairan Betahwalang, Demak. Metode yang digunakan dalam penelitian ini adalah metode survey yang bersifat deskriptif. Ukuran sampel untuk pengamatan morfometri dan TKG rajungan betina diambil sebesar 10% dari total jumlah rajungan yang didaratkan (917 ekor rajungan jantan dan 1013 ekor rajungan betina dari total jumlah tangkapan sebesar kurang lebih 9170 ekor rajungan jantan dan 10.130 ekor rajungan betina). Sampel untuk pengamatan fekunditas dan IKG diambil sebesar 10% dari total jumlah rajungan betina yang tertangkap (102 ekor). Sampling dilakukan per minggu secara berurutan di Perairan Betahwalang dengan tujuan mendapatkan data yang berurutan dan berkesinambungan. Hasil penelitian menunjukan bahwa pertumbuhan rajungan (Portunus pelagicus) memiliki nilai b sebesar 3,166, artinya pertumbuhan rajungan bersifat alometrik positif dengan sex rasio 1:1,1. Ukuran rajungan pertama kali tertangkap adalah 122 mm. Hasil analisa regresi menunjukkan bahwa fekunditas rajungan berbanding lurus dengan bertambahnya ukuran berat dan lebar karapas. Hasil pengamatan tingkat kematangan gonad selama bulan November 2014-Februari 2015 mengindikasikan telur rajungan berada pada kondisi ovigerous dan non-ovigerous dengan nilai indeks kematangan gonad yang cukup tinggi dan ukuran pertama kali matang gonad sebesar 136 mm.   Kata kunci : Aspek Biologi, Rajungan (Portunus pelagicus), Betahwalang   ABSTRACT Betahwalang village is a coastal region with a majority of the population utilizing blue swimmer crab resource. Therefore, to preserve the species of blue swimmer crabs sustainable management and conservation are required so that sufficient information about the development of the production of fishermen and crab size. The purpose of this study was to determine the pattern of growth and crab morphometric relationships, sex ratio, morphometric relationship to fecundity, as well as the level of maturity and blue swimmer crab gonad maturity index. This study was conducted in November 2014-February 2015 in the Betahwalang waters, Demak. The method used in this research is descriptive survey method. The sample size for morphometry and female crab TKG observation was taken by 10% of the total number of landed crab (917 male and 1013 female of the total catch of approximately 9170 male and 10 130 females). Samples for fecundity and IKG observation was taken by 10% of the total numbers of female crabs caught (102). Sampling was done weekly in a row in the Betahwalang waters with the purpose of obtaining data sequentially and continuously. The results showed that the growth of crab (Portunus pelagicus) has b value of 3.166, indicating that crabs’ growth is allometric positive with sex ratio of 1: 1.1. First caught crab size is 122 mm. Regression analysis showed that the crab fecundity is directly proportional to the increase in the size of the weight and width of the carapace. The observation of gonad maturity level during November 2014-February 2015 indicates crab eggs were in ovigerous and non-ovigerous condition with gonad maturation index value that was quite high and size of maturity is 136 mm.  Keywords : Aspects of Biology, blue swimmer crabs (Portunus pelagicus), Betahwalang Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11137 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21397 2020-04-17T19:29:15Z saintek:RSA

nmb a2200000Iu 4500 "180817 2018 eng " 2549-0885 1858-4748 dc PENGARUH PENGGUNAAN LAMPU BAWAH AIR (UNDERWATER LAMP) TERHADAP HASIL TANGKAPAN BAGAN PERAHU (BOAT LIFT NET) DI PELABUHAN PERIKANAN NUSANTARA (PPN) KARANGANTU KOTA SERANG (Effect of Underwater Lamp Usage on Boat Lift Net Fishing Catch at Karangantu Fishing Port Serang City) Nuraga, Aditya Departemen Perikanan Tangkap Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jayanto, Bogi Budi Departemen Perikanan Tangkap Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Setiyanto, Indradi Departemen Perikanan Tangkap Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Karangantu; Lampu bawah air; Bagan perahu; Hasil tangkapan Bagan perahu merupakan salah satu jenis alat tangkap di PPN Karangantu yang beroperasi pada malam hari. Bagan perahu menarik ikan target tangkapan yaitu ikan pelagis kecil fototaksis positif menggunakan atraktor cahaya berupa lampu. Salah satu kendala nelayan bagan perahu adalah pencahayaan lampu mengalami pembiasan. Penggunaan lampu bawah air bertujuan untuk mengurangi pembiasan. Tujuan dari penelitian ini adalah mengetahui pengaruh penggunaan lampu bawah air terhadap hasil tangkapan bagan perahu dan mengetahui komposisi hasil tangkapan bagan perahu dengan dan tanpa lampu bawah air. Penelitian ini dilakukan selama 10 trip menggunakan metode experimental fishing. Selisih berat total hasil tangkapan antara bagan perahu dengan dan tanpa lampu bawah air pada trip 1 sebesar 33,4 kg, trip 2 sebesar 38,9 kg, trip 3 sebesar 31,1 kg, trip 4 sebesar 41,1 kg, trip 5 sebesar 28,8 kg, trip 6 sebesar 30,5 kg, trip 7 sebesar 35,4 kg, trip 8 sebesar 34,3 kg, trip 9 sebesar 38,7 kg dan trip 10 sebesar 31,6 kg sehingga menunjukkan hasil tangkapan lebih banyak bagan perahu dengan lampu bawah air. Hasil tangkapan utama bagan perahu adalah ikan Teri (Stolephorus sp.) dan Cumi-cumi (Loligo sp.). Hasil tangkapan sampingan bagan perahu antara lain ikan Petek (Leiognathus sp.), Tembang (Sardinella sp.), Lemuru (Amblygaster sirm), Selar Kuning (Selaroides leptolepi) dan Layur (Lepturacanthus savala). Kesimpulan yang dapat diambil yaitu terdapat pengaruh antara lampu bawah air dengan hasil tangkapan pada bagan perahu.   Boat lift net is one type of fishing gear at PPN Karangantu which operates at night. Boat lift net attracts the target catch fish, the small pelagic fish is positive phototaxis using a light attractor in the form of a lamp. One of the constraints of fishermen on the boat chart is that the lighting has experienced refraction. Underwater lamp aims to reduce refraction.The purpose of this research is to know the effect of underwater lamp usage on boat lift net fishing catch and to know the composition of boat lift net with and without using underwater lamp. This research was conducted for 10 trips using experimental fishing methods. The difference in total catch of boat lift net with and without underwater lamp on trip 1 is 33,4 kg, trip 2 is 38,9 kg, trip 3 is 31,1 kg, trip 4 is 41,1 kg, trip 5 is 28,8 kg, trip 6 is 30,5 kg, trip 7 is 35,4 kg, trip 8 is 34,3 kg, trip 9 is 38,7 kg and trip 10 is 31,6 kg so it shows the catch is more the boat lift net with underwater lamp. Fish targets of the boat lift net are Anchovy (Stolephorus sp.) and Cuttlefish (Loligo sp.). The bycatches of boat lift net are Pony fish (Leiognathus sp.), Fringescale sardinella (Sardinella sp.), Indian sardinella (Amblygaster sirm), Trevally (Selaroides leptolepi) and Hairtail fish (Lepturacanthus savala). The conclusion that can be drawn that there is an influence between underwater lamp and catches on the boat lift net. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21397 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/37067 2022-06-18T09:12:11Z saintek:RSA

nmb a2200000Iu 4500 "211210 2021 eng " 2549-0885 1858-4748 dc Nurchayati, Sri -Managemen Sumberdaya Pantai, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro - Dinas Kelautan dan Perikanan Kabupaten Pati Haeruddin, Haeruddin Basuki, Fajar Sarjito, Sarjito Nila salin (Oreochromis niloticus) adalah ikan nila yang dibudidayakan pada perairan payau dengan memanfaatkan sifat euryhaline (dapat mentoleransi perubahan salinitas dengan rentang yang lebar). Ikan ini mampu tumbuh dan berkembangbiak pada salinitas 0 – 20 ppt dan masih dapat hidup pada salinitas 35 ppt. Keunggulan ikan nila adalah pertumbuhan cepat, mudah berkembangbiak, dan mudah beradaptasi dengan lingkungan. Pembudidaya ikan di Kecamatan Tayu Kabupaten Pati mulai mencoba budidaya nila salin karena kegagalan dalam budidaya udang. Lahan yang digunakan untuk budidaya nila salin di Kecamatan Tayu pada tahun 2015 seluas 2 Ha dan meningkat menjadi 582 Ha pada tahun 2018. Penelitian ini bertujuan untuk menganalisis kesesuaian lahan budidaya nila salin di Pertambakan Kecamatan Tayu. Metode yang digunakan adalah metode survei. Analisis kesesuaian lahan dilakukan dengan metode matcing untuk mendapatkan kelas kesesuaian lahan. Hasil analisis kesesuaian lahan tambak ikan nila di lokasi penelitian digolongkan pada tingkat kesesuaian kelas S3 (sesuai marginal) dengan nilai rata-rata 72,6 %. Faktor pembatas yang perlu menjadi perhatian serius adalah fluktuasi Oksigen terlarut, potensial redoks dan TSS.   Saline tilapia (Oreochromis niloticus) is a tilapia fish that is cultivated in brackish waters by utilizing its euryhaline properties (it can tolerate a wide range of changes in salinity). This fish is able to grow and reproduce at a salinity of 0 – 20 ppt and can still live at a salinity of 35 ppt.. The advantages of tilapia are fast growth, easy to breed, and easy to adapt to the environment. Fish cultivators in Tayu District, Pati Regency, started trying saline tilapia cultivation due to failures in shrimp cultivation. The land used for saline tilapia cultivation in Tayu District in 2015 was 2 hectares and increased to 582 hectares in 2018. This study aims to analyze the suitability of saline tilapia cultivation land in Tambakan, Tayu District. The method used is a case study survey method. Land suitability analysis was carried out using the matching method to obtain land suitability classes. The results of the suitability analysis of tilapia ponds in the research location were classified at the level of suitability for S3 class (marginally appropriate) with an average value of 72.6%. Limiting factors that need serious attention are fluctuations in dissolved oxygen, redox potential and TSS. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-12-10 06:13:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/37067 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 4 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/71269 2025-04-25T14:22:56Z saintek:RSA

nmb a2200000Iu 4500 "250416 2025 eng " 2549-0885 1858-4748 dc Krisna, Natanael Department of Capture Fisheries, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Setyawan, Hendrik Anggi Jayanto, Bogi Budi Pukat cincin pelagis kecil merupakan alat penangkap ikan aktif yang beroperasi dengan cara melingkari gerombolan ikan pelagis kecil. Diperlukan perhitungan teknis yang cermat terkait bentuk dan konstruksi sangat penting untuk menyesuaikan kecepatan tenggelam jaring di perairan. Keseimbangan antara gaya apung dan gaya tenggelam merupakan faktor krusial yang mempengaruhi efektivitas alat tangkap, sehingga analisis meliputi komponen terapung dan tenggelam diperlukan untuk memastikan jaring berfungsi secara optimal dan efisien dalam pengoprasian alat tangkap. Tujuan penelitian digunakan untuk menganalisis karakteristik bentuk, menganalisis karakteristik konstruksi, serta menganalisis kesesuaian teknis rasio gaya apung dan gaya tenggelam yang dihasilkan pukat cincin pelagis kecil di PPN Pekalongan. Metode penelitian menggunakan metode deskriptif dengan metode pengambilan sampel secara tidak sengaja (accidental sampling). Metode analisis data menggunakan analisis karakteristik bentuk, analisis karakteristik konstruksi, menghitung berat komponen, menghitung gaya apung dan gaya tenggelam. Hasil penelitian didapatkan nilai gaya apung dengan rentang 619,395 – 738,807 kgf, sedangkan gaya tenggelam dengan rentang 350,209 –  481,996 kgf. Nilai ketentuan teknis rasio gaya apung terhadap gaya tenggelam pukat cincin yang ideal memiliki nilai 1,5 – 2,0. Rasio gaya apung terhadap gaya tenggelam dari hasil penelitian menunjukkan kriteria ideal secara keseluruhan dengan nilai diantara kriteria 1,5 – 2,0. Nilai rasio gaya apung dan gaya tenggelam data sampel dilapangan menunjukkan nilai rata-rata rasio 1,64 dengan rentang rasio sebesar 1,54 hingga 1,77. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-04-16 03:41:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71269 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 1 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13187 2020-04-17T19:24:16Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc ANALISIS KARAKTER REPRODUKSI DAN PERFORMA BENIH HIBRID IKAN NILA PANDU F6 DENGAN IKAN NILA NILASA (Oreochromis niloticus) Analysis of the Character Reproduction and Seed Hybrid Performance 0f Tilapia Fish F6 Pandu with Nilasa Tilapia (Oreochromis niloticus) Yustysi, Dio Patria Departemen Aquakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Basuki, Fajar Departemen Aquakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Susilowati, Titik Departemen Aquakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Yuniarti, Tristiana Departemen Aquakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Hibridisasi; Ikan Nila; Karakter Reproduksi; Performa Benih   Penelitian ini bertujuan untuk mengetahui pengaruh dari hibridisasi ikan nila Pandu F6 dengan nila Nilasa terhadap karakter reproduksinya dan performa benih yang dihasilkan. Penelitian ini dilakukan dengan metode eksperimental menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 kali ulangan. Perlakuan dalam penelitian ini: perlakuan A (Pandu F6 ♀><Pandu F6 ♂), B (Nilasa ♀><Nilasa ♂), C (Pandu F6 ♀>< Nilasa ♂), dan D (Nilasa ♀><Pandu F6 ♂). Data yang diamati meliputi fekunditas, daya tetas telur, diameter dan bobot telur, panjang dan bobot larva TL, panjang dan bobot larva lepas kuning telur, kelulushidupan, laju pertumbuhan spesifik, konversi pakan dan kualitas air. Hasil penelitian menunjukan nilai terbaik pada fekunditas sebesar 1191,67 ± 239,45 butir/200 g, daya tetas telur sebesar 80,93 ± 3,90%, kelulushidupan sebesar 81,55 ± 7,54%, laju pertumbuhan spesifik sebesar 7,26 ± 0,25, konversi pakan 0,54 ± 0,02 didapatkan pada perlakuan C, akan tetapi untuk diameter dan bobot telur, panjang dan bobot larva Kuning Telur, dan panjang dan bobot larva lepas kuning telur tidak berbeda nyata. Hasil tersebut menunjukan bahwa hibridisasi (perlakuan C) memberikan pengaruh yang nyata (P < 0,05) terhadap fekunditas, daya tetas telur, kelulushidupan, laju pertumbuhan spesifik, dan konversi pakan tetapi tidak berpengaruh terhadap diameter dan bobot telur, panjang dan bobot larva, dan panjang dan bobot larva lepas kuning telur.    This research aims to know the influence of hybridization tilapia fish Pandu F6 with nila Nilasa against the character of the reproduction and seed performance. This research was conducted with the experimental method using Random Design complete (RAL) with 4 treatments and three replicates. The treatments in this study: the treatment A (Pandu F6 F6 ♀ >< Pandu ♂), B (Nilasa ♀>< Nilasa ♂), C (Pandu F6 ♀>< Nilasa ♂), and D (Nilasa ♀ >< Pandu F6 ♂). The observed data covering fecundity, hatching rate, egg size, yolk sack larva length and weight, length and weight of the egg yolk off larvae, survival rate, specific growth rate, feed conversion rate, and water quality. The results showed the best value on the fecundity of 1191.67±239.45 eggs/200 g, Hatching rate 80.93 ± 3.90%, Survival rate of 81.55 ± 7.54%, specific growth rate of 7.26 ± 0.25, conversion fodder 0.54 ± 0.02 obtained at the treatment C, but for the diameter and weight of egg, larval length and weight TL, and the length and weight of the yolk egg off larvae for each treatment do not differ markedly. The results showed that hybridization (treatment C) gives a real influence (P < 0.05) of fecundity,hatching rate, survival rate but not with the egg size, larva weight and length, and the length and weight of larvae off yolk. Water quality on the spawning, hatching eggs and larvae found on the maintenance of a decent range for tilapia fish farming    Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13187 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21404 2020-04-17T19:29:19Z saintek:RSA

nmb a2200000Iu 4500 "180819 2018 eng " 2549-0885 1858-4748 dc POLA SEBARAN, INDIKATOR KUALITAS LINGKUNGAN DAN EKOLOGI KOMUNITAS MANGROVE PULAU TUNDA(Distribution Pattern, Environmental And Ecological Quality Indicators Of Mangrove Forest Community Pulau Tunda) Syahrial, Syahrial Sekolah Tinggi Perikanan dan Kelautan Matauli Sastriawan, Yudi Sekolah Tinggi Perikanan dan Kelautan Matauli Pola Penyebaran; Mangrove; Kualitas Lingkungan; Ekologi Komunitas; Pulau Tunda Ekosistem mangrove terdapat di seluruh pantai maupun pulau-pulau kecil Indonesia yang terpengaruh oleh pasang surut. Kajian pola sebaran, indikator kualitas lingkungan dan ekologi komunitas mangrove Pulau Tunda dilakukan pada bulan Januari 2014 dengan tujuan untuk mengetahui pola sebaran, indikator kualitas lingkungan dan ekologi komunitas mangrovenya. Sampel mangrove diambil menggunakan transek garis dan plot yang ditarik dari titik acuan (tegakan mangrove terluar) serta tegak lurus garis pantai sampai ke daratan. Kemudian transek garis tersebut dibuat petak-petak contoh (plot) yang berukuran 10 x 10 m2 untuk kategori pohon dan di dalam ukuran 10 x 10 m2 dibuat plot berukuran 1 x 1 m2 untuk kategori semai. Pola penyebaran mangrove Pulau Tunda dianalisis berdasarkan indeks Morisita. Sementara kualitas lingkungan hutan mangrove dianalisis menggunakan tutupan pohon, tutupan semai dan jumlah jenis semai yang ditemukan. Kemudian ekologi komunitas mangrove Pulau Tunda dianalisis berdasarkan indeks keanekaragaman, dominansi dan keseragaman. Hasil penelitian menunjukan bahwa pola penyebaran mangrove Pulau Tunda tergolong beraturan (regular), dimana terjadi interaksi negatif antar individu dalam memperebutkan ruang, unsur hara maupun cahaya matahari. Selain itu, kondisi hutan mangrove Pulau Tunda masih tergolong baik dengan tingkat kualitas lingkungan vegetasi mangrove 73.74%, keanekaragaman dan dominansi mangrovenya tergolong rendah (1.20 dan 0.52) dan keseragamannya tergolong labil (0.60).   Mangrove ecosystems are found throughout the coast and small islands of Indonesia which are affected by tides. Distribution pattern studies, environmental quality indicators and the ecological mangrove community of Tunda Island were carried out in January 2014 with the aim to determine distribution patterns, indicators of environmental quality and ecology of the mangroves community. Mangrove samples were taken using line transects and plots drawn from reference points (outer mangrove stands) and perpendicular to the coastline to the mainland. The line transect is made of plots of sample size 10 x 10 m2 for the category of trees and in a size of 10 x 10 m2 a plot of 1 x 1 m2 is made in the seedling category. The pattern of distribution of mangroves of Tunda Island was analyzed based on the Morisita index. While the environmental quality of mangrove forests was analyzed using tree cover, seedling cover and number of seedlings found. The ecology of the Tunda Island mangrove forest community was analyzed based on the diversity index, dominance and uniformity. The results showed that the pattern of mangrove distribution of Tunda Island was regular, where there was a negative interaction between individuals in fighting over space, nutrients and sunlight. In addition, the condition of the Tunda Island mangrove forest is still relatively good with the level of environmental quality of mangrove vegetation 73.74%, the diversity and dominance of mangroves are relatively low (1.20 and 0.52) and uniformity is classified as unstable (0.60).  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21404 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6805 2014-05-02T12:19:05Z saintek:RSA

nmb a2200000Iu 4500 "080222 2008 eng " 2549-0885 1858-4748 dc The Habit Alimentaires Analysis (Food Habit) of Hypoatherina sp. Larvae in East Pelawangan Segara Anakan Cilacap Subiyanto, Subiyanto Staf Pengajar Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro M.F., Herimawan Staf Pengajar Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Rudiyanti, Siti Staf Pengajar Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Observations about kind of food in the Hypoatherina sp. side arrested in East Pelawangan Segara Anakan Cilacap. Food habits of observation methods conducted by the method according to the number of Effendie, (1997) 6). Based on the analysis of Hypoatherina sp. larvae food habits and analysis of plankton found in the study  showed  that the  stomach contents  of  larval  size  3,1-5,0  mm or at the beginning of taking food from other species in common with the abundant natural food in the waters, where the largest constituent Bacillariophyceae class. Along with its growth, there is a change in food habits 5,1-7,0 mm long dominated by the food standards Bacillariophyceae (27.5%) and Ciliophora (24.4%).  7,1-9,0  mm long  while  the  standard  changed  to  Bacillariophyceae  (19.4%)  and  Copepod (25.9%). 9,1-11,0 mm, and in turn again to the Copepod (39%) and Cyanophyta (34%). From this research can be concluded that the Hypoatherina sp. is a type of plankton-eating fish, both types of phyto and zooplankton.   Key words : Food habit, Fish larvae, Plankton Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6805 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/71380 2025-08-04T07:40:30Z saintek:RSA

nmb a2200000Iu 4500 "250804 2025 eng " 2549-0885 1858-4748 dc Insivitawati, Era Wahidi, Budi Rianto Department of Pathology, Politeknik Kelautan dan Perikanan Sidoarjo, Jl. Raya Buncitan Kotak Pos 1 Sedati, Sidoarjo, Jawa Timur, Indonesia https://orcid.org/0000-0002-4012-912X Asmarany, Anja Hakimah, Nisa Jayanti, Shara Setyatuti, Tri Ari Suseno, Dewi Nurmalita Sugianti, Budi Budidaya ikan nila (Oreochromis niloticus) berpotensi besar, namun rentan terinfeksi bakteri dan memerlukan solusi alternatif pengganti antibiotik sintetis. Daun ketapang (Terminalia catappa) dan bawang putih (Allium sativum) bersifat antimikroba dan imunostimulan, namun efektivitas dan formulasi optimal masih memerlukan penelitian lebih lanjut. Penelitian ini bertujuan mengevaluasi efektivitas kombinasi daun ketapang dan bawang putih untuk mencari alternatif pengendalian bakteri yang lebih aman, mengingat penggunaan obat berlebihan dapat memicu resistensi. Daun ketapang dan bawang putih dipilih sebagai imunostimulan herbal yang potensial menekan bakteri Aeromonas tanpa dampak negatif bagi lingkungan. Metode yang digunakan adalah eksperimen Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 ulangan yaitu  Perlakuan Kontrol tanpa pemberian ekstrak daun ketapang dan bawang putih, Perlakuan A (komposisi 75 % daun ketapang dan 25% bawang putih), Perlakuan B (komposisi 50 % daun ketapang dan 50% bawang putih), dan Perlakuan C (komposisi 25 % daun ketapang dan 75% bawang putih). Pengujian mencakup uji fitokimia, zona hambat, DPPH (2,2-Diphenyl-1-picrylhydrazyl), analisis kualitas air dan pertumbuhan ikan dengan uji statistik. Hasil menunjukkan kombinasi 50% daun ketapang dan 50% bawang putih (Perlakuan B) merupakan yang terbaik dan berpotensi meningkatkan daya tahan tubuh ikan dengan kadar alkaloid tertinggi sebesar 37,91% (b/b) dengan persentase Relative Percent Difference (RPD) 1,5%, IC50 Uji DPPH 3,79 mg/ml, menghambat pertumbuhan bakteri yang ditunjukkan dengan hasil zona hambat terbesar, pertumbuhan berat terbaik dengan ABW mencapai 17,60 ± 6,84 gram/ekor dan ADG 1,53 g/minggu. Penelitian ini mengindikasikan bahwa kombinasi daun ketapang dan bawang putih dapat menjadi imunostimulan alami yang ramah lingkungan dalam budidaya ikan nila. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-08-04 07:36:31 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/71380 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 2 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15295 2020-04-17T19:26:26Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc PENINGKATAN PRODUKSI BIOMASSA SIDAT (Anguilla bicolor) MELALUI PEMANFAATAN FERMENTASI PAKAN DAN TEPUNG CACING TANAH (Lumbricus sp) (Production increase of Anguila Biomass by using food fermentation and earth worms flour) Chilmawati, Diana Departemen Budidaya Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suminto, Suminto Departemen Budidaya Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Yuniarti, Tristiana Departemen Budidaya Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Anguilla bicolor; fermentasi pakan; tepung cacing tanah; budidaya   Sidat (Anguilla bicolor) merupakan jenis ikan yang pertumbuhan lambat, karena kemampuan daya cerna dan efisiensi pemanfaatan pakan sidat rendah. Salah satu usaha untuk mempercepat laju pertumbuhannya yaitu dengan memfermentasikan pakan buatan dan penambahan tepung cacing (Lumbricus sp.) untuk memperbaiki kandungan nutrisi pakan sehingga pertumbuhan sidat akan meningkat. Penelitian ini bertujuan untuk mengkaji pengaruh dan  menentukan kombinasi fermentasi pakan buatan dan penambahan tepung cacing tanah yang memberikan pertumbuhan, efisiensi pakan, dan kelulushidupan sidat (A. bicolor) terbaik. Elver sidat yang digunakan adalah 320 ekor dengan berat rata-rata 15±1,2 g yang dibudidayakan dalam enam belas akuarium berukuran 80 l yang diisi 40 L air dan diaerasi.  Kepadatan awal 20 ekor/akuarium. Pergantian air dilakukan setiap hari 10% dari total air dan dilakukan pemberian pakan 5% dari biomassa sidat dengan frekuensi pemberian pakan 3 kali sehari, pakan yang diberikan mempunyai kadar protein >50%. Pola rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 4 ulangan. Perlakuan yang diberikan adalah A, B, C, dan D masing-masing ditambahkan dengan tepung cacing tanah 0%, 5%, 10%, dan 15% dari total pakan yang diberikan dalam pakan buatan yang telah difermentasi. Variabel yang diukur adalah PER, SGR, EPP, FCR, dan SR. Hasil penelitian menunjukkan bahwa fermentasi pakan buatan dan penambahan tepung cacing tanah dalam pakan berbentuk pasta berpengaruh nyata (p<0,05) terhadap pertumbuhan (RGR) ,efisiensi pakan (EPP) dan rasio konversi pakan (FCR) namun tidak berpengaruh nyata terhadap kelulushidupan (SR) sidat (A. bicolor) dan kombinasi fermentasi pakan buatan dan penambahan tepung cacing tanah dengan dosis 5% (perlakuan B) memberikan pertumbuhan, efisiensi pakan, dan rasio konversi pakan sidat (A. bicolor) terbaik. Kualitas air pada media pemeliharaan masih pada kondisi layak untuk budidaya sidat.   The elver of Anguilla bicolor is the kind of fish that the late growth, due to low in digestability and inefficiency to the feed utilization. One of the solutions to accelerate the growth rate is by adding earthworm powder (Lumbricus sp.) and the fermented artificial feed to improve feed nutrition content so the increasing growth. The obyective of this research was to know the effect of  fermented artificial feed and the addition of earthworm powder in pasta artificial feed on the best of growth, feed utilization, and survival rate of A. bicolor in the culture. Elvers of 320 individuals  with an average weight of 15 ± 1.2 g were cultivated in sixteen of  the  circular aquarium with 80 L in volume. Every aquarium was added 40 L of tap water and weekly aeration with initial density of 20 individuals/aquarium.  Everyday was changed 10 % of tap water and added the pasta artificial feed 5 % of elver body weight for three time feeding habit per day with protein content of  >50%.  The treatments were designed by using a completely randomized design (CRD) with 4 treatments and 4 replicates.  The culture of treatments A was not added  earthworm powder in the fermented pasta artificial feed. Treatments of B, C, and D were added by earthworm powder of 5 %, 10 %, and 15 % in the fermented pasta artificial feed, respectively.  The variables measured were PER, SGR, EPP, FCR, and SR.  The result showed that the artificial feed with different protein levels highly significant influenced (P<0,05) on the RGR, EPP, and FCR, and there was no significant influences (P>0,05) on the SR of elver.  The treatment B (5 % of earthworm) however showed the best one treatment dosage for elvers growth rate than the other treatments. Water quality in culture media was still in decent condition for the cultivation of eels.     Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15295 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22071 2020-04-17T19:30:32Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc PENGARUH KOMPOSISI JENIS PAKAN YANG BERBEDA TERHADAP PERTUMBUHAN TUKIK PENYU SISIK (Eretmochelys imbricata) DI PENETASAN SEMI-ALAMI PENYU TAMAN NASIONAL KARIMUNJAWA (The Effect of Different Feeding Composition on Growth of Baby Hawksbills Turtle (Eretmochelys imbricata) in Semi-Natural Hatching Den in Karimunjawa National Park) Puteri, Fadya Rachmi Program Studi Manajemen Sumberdaya Perairan, Depatemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Afiati, Norma Program Studi Manajemen Sumberdaya Perairan, Depatemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Widyorini, Niniek Fadya Rachmi Puteri, Norma Afiati dan Niniek Widyorini Program Studi Manajemen Sumberdaya Perairan, Depatemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Hawksbill turtle hatchling; growth; food; Karimunjawa National Park Populasi alamiah penyu di Indonesia terus menurun 20 - 30% per tahun terutama lebih disebabkan oleh faktor manusia dibandingkan dengan faktor alam dan predator. Beberapa di antara teknik penyelamatan untuk pelestarian penyu antara lain melalui penetasan di sarang semi-alami, perlindungan translokasi habitat (konservasi in-situ), penegakan hukum, penyuluhan dan pemberdayaan masyarakat sekitar. Di sarang semi-alami jenis pakan yang tepat pada saat pemeliharaan awal tukik sebelum dilepas ke laut akan mempengaruhi kelulus-hidupan mereka. Padahal, sampai saat ini jenis pakan yang tepat untuk tukik belum banyak diketahui. Penelitian ini menggunakan tiga 3 perlakuan pakan (Sardinella lemuru 100%; Sargassum filipendula 100%; campuran S. lemuru dan S. filipendula 50:50%), analisis data enggunakan Rancangan Acak Lengkap (RAL) dengan 3 pengulangan. Secara statistik, diketahui bahwa tiap perlakuan pakan menghasilkan perbedaan pada variabel panjang, lebar karapas dan bobot tukik. Berdasarkan analisis alometri tukik E.imbricata selama penelitian, dihasilkan konstanta b < b antar perlakuan yang menunjukkan bahwa pertumbuhan bersifat alometri negatif pada variabel panjang karapas dan bobot tubuh serta panjang dan lebar karapas; kecuali pada hubungan panjang dan lebar karapas tukik dengan pakan S. lemuru.   The population of sea turtles in Indonesia continued to decrease by 20-30% each year. The decline in natural turtle populations is caused mainly by human factors rather than natural factors and predator. Among others, rescue and preservation of turtles can be accomplished through rearing in a semi-natural den, protection of the habitat translocation (in-situ conservation), law enforcement, education and empowerment of local communities. The proper type of feed for the hatchlings to provide information on required nutrient in optimizing the growth has not been known until now. The methods used in this study was an experimental method apllying Complete Randomised Design with three feeding treatments (100% S. lemuru; 100% Sargassum filipendula; 50:50% mixed of S. lemuru and S. filipendula). The results showed that carapace length, carapace width and body weight differed statistically (P<0.05) in every feed treatment. Hatchlings showed negative allometric  (b < ) in carapace length to weight as also carapace length to its width. Isometry in carapace length and width is only shown by hatchlings fed with  S. lemuru Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22071 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6821 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc Recent Existing Condition on Shrimp Culture at Jepara Coast, Central Java Elfitasari, Tita Aquaculture Study Program Faculty of Fisheries and Marine Science Fisheries Department Diponegoro University The shrimp culture is collapsing at Jepara coast. Several internal and external reasons have  caused this and are needed to be handled seriously. An alternative solution should be conducted and applied without delay. Recent Existing condition of the shrimp culture at Jepara Coast is  experiencing a tremendous decline in the last five years. There are four category of internal  factors determinant which shows this decline:  the  development  of  shrimp  culture production,  the  development  of  shrimp culture  available cultivation area, shrimp culture number of units,  and the development of the farmers’ internal revenue. The degradation of the shrimp culture at Jepara coast is mainly caused by environmental and managerial reasons. The environment is no longer supporting the shrimp culture at Jepara coast and to overcome this, a  relocation  or  re-zonation  should  be  applied.  As  alternative  solution,  to regain  the  Jepara region’s aquaculture potencies, a new species can be introduced and applied. In order to develop new species and to sustain its productivity, the new species should have some characteristics as  follows: easy to culture, invulnerable to disease, high market demand, high market price, short cultivation period, low production cost, and able to adapt with unfortunate water quality.   Key words : Shrimp culture condition, Jepara coast Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6821 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/46166 2022-10-21T03:45:02Z saintek:RSA

nmb a2200000Iu 4500 "220831 2022 eng " 2549-0885 1858-4748 dc KONDISI KUALITAS AIR DAN STRUKTUR KOMUNITAS DIATOM (BACILLARIOPHYCEAE) DI SUNGAI BABON Rahman, Arif Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia https://orcid.org/0000-0001-9313-3985 Haeruddin, Haeruddin Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia Ghofar, Abdul Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia Purwanti, Frida Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia diatom; fitoplankton; Navicula; pencemaran; Sungai Babon Sungai Babon merupakan salah satu sungai di Semarang, Jawa Tengah yang dimanfaatkan untuk berbagai aktivitas manusia sehingga berpotensi menghasilkan limbah yang akan mencemari perairan. Perubahan kualitas air akibat pencemaran akan mempengaruhi persebaran dan struktur komunitas fitoplankton. Diatom (Bacillariophyceae) adalah salah satu kelompok fitoplankton yang tersebar luas di perairan karena memiliki daya adaptasi yang tinggi. Tujuan dari penelitian ini adalah mengetahui kondisi kualitas air dan struktur komunitas diatom (Bacillariophyceae) di Sungai Babon. Penelitian ini dilakukan di 5 stasiun yang tersebar dari hulu hingga hilir Sungai Babon pada bulan April dan Mei 2021. Variabel kualitas air yang diukur meliputi suhu, kecerahan perairan, pH, oksigen terlarut (DO), nitrat, dan fosfat. Hasil penelitian ini menunjukkan parameter kualitas air Sungai Babon masih sesuai dengan baku mutu PP RI No. 22 Tahun 2021 Kelas II tentang Penyelenggaraan Perlindungan dan Pengelolaan Lingkungan Hidup, kecuali kadar oksigen terlarut di Stasiun 5. Diatom (Bacillariophyceae) yang ditemukan di Sungai Babon berjumlah 17 genera. Diatom yang paling banyak ditemukan adalah Navicula, diikuti Synedra, Surirella, dan Melosira. Navicula adalah genus diatom yang ditemukan di semua stasiun penelitian dan memiliki kelimpahan tertinggi dengan persentase kelimpahan berkisar antara 13,82-52,83% dari kelimpahan total setiap stasiun. Diatom memiliki indeks keanekaragaman yang rendah, keseragaman tinggi (merata), dan dominansi rendah.   Babon River is one of the rivers in Central Java that is used for various human activities so it has the potential to produce waste that will pollute the waters. Changes in water quality will affect the distribution and structure of the phytoplankton community. Diatoms (Bacillariophyceae) are a group of phytoplankton that is widely distributed in waters because they have high adaptability. The purpose of this study was to determine the condition of water quality and community structure of diatoms (Bacillariophyceae) in the Babon River. This research was conducted at 5 stations spread from upstream to downstream of the Babon River in April and May 2021. The water quality variables measured included temperature, water transparency, pH, dissolved oxygen, nitrate, and phosphate. The results showed that the water quality parameters of the Babon River are still following the quality standards of PP RI No. 22 of 2021 Class II, except for dissolved oxygen levels at Station 5. Diatoms (Bacillariophyceae) found in Babon River are 17 genera. The most common genus was Navicula, Synedra, Surirella, and Melosira. Navicula is a genus of phytoplankton found in all stations and has the highest abundance with a percentage from 13.82 to 52.83% of the total abundance of each station. Diatoms have a low diversity index, high similarity, and low dominance. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/46166 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/75757 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Muyassar, Nabil Fathi Departement of Fisheries, Universitas Padjadjaran, Jl. Raya Bandung - Sumedang Km.21 Jatinangor Sumedang, Jawa Barat, Indonesia 40132|Universitas Padjadjaran Mulyani, Yuniar https://scholar.google.com/citations?user=tXKURQkAAAAJ&hl=en&oi=ao https://orcid.org/0000-0002-5521-049X Zidni, Irfan https://scholar.google.com/citations?user=mL7Qu-4AAAAJ&hl=en&oi=ao https://orcid.org/0000-0003-4382-8513 Herawati, Titin https://scholar.google.com/citations?user=oNdzPtgAAAAJ&hl=en&oi=ao https://orcid.org/0000-0002-5728-0029 Ikan dewa (mahseer) penting untuk konservasi di Pulau Jawa karena tingginya nilai ekonomis dan ekologis, sehingga diperlukan analisis kekerabatan genetik. Penelitian dilakukan di Sungai Sungapan, Sungai Cimanuk, Curug Tonjong, Curug Cimedang, Sungai Ciwulan, Sungai Serayu, Sungai Progo, Sungai Samin, Sungai Kedung Minten, dan Sungai Brantas di pulau Jawa, bertujuan menganalisis kekerabatan genetik ikan dewa. Metode yang digunakan adalah deskriptif kualitatif dengan pengambilan sampel acak dari sungai di pulau Jawa. Identifikasi molekuler menggunakan gen COI (Cytochrome Oxidase I) untuk menganalisis jarak dan kekerabatan genetik, lalu data dianalisis secara deskriptif. Hasil elektroforesis menunjukkan amplikon ±700 bp dari gen COI untuk semua sampel. Analisis sekuens menggunakan BOLD System mengidentifikasi sampel memiliki kemiripan dengan Tor tambra dan Neolissochilus soro. Analisis genetik menggunakan MEGA11 menunjukkan jarak genetik antara spesies Tor sp. dengan spesies Neolissochilus sp. sebesar 0,0-3,2%, mengindikasikan perbedaan spesies. Tor sp. dari beberapa sungai menunjukkan kekerabatan dekat (≤1%) dengan spesies Tor lainnya (T. tambra, T. mekongensis, T. dongnaiensis). Namun, Neolissochilus sp. dari sungai lain memiliki jarak genetik tinggi (hingga 6%) dengan genus Neolissochilus dari GeneBank. Analisis filogenetik memperkuat hasil ini, mengelompokkan sampel menjadi dua klaster monofiletik yang berbeda secara genetik, yaitu klaster Tor sp. yang berkerabat dekat dengan T. tambra, dan klaster Neolissochilus sp. yang terpisah dan berkerabat jauh dengan spesies Neolissochilus lain yang tersedia di GeneBank. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/75757 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/75757/249569 Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16825 2020-04-17T19:27:16Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc POTENSI EKSTRAK KASAR ALGA COKELAT (Sargassum sp) DAN DAUN TEH (Camellia sinensis) DALAM MENGHAMBAT OKSIDASI PADA UDANG VANNAMEI (Litopenaeus vannamei) SEGAR SELAMA PENYIMPANAN DINGIN (Potential of Crude Extract of Brown Algae (Sargassum sp) and Tea Leaves (Camellia sinensis) for Inhibits Oxidation of Pasific White Shrimps (Litopenaeus vannamei) During Refrigerated Storage) Azizah, Suci Kusumastuti Nur Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Dewi, Eko Nurcahya Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Fahmi, A. Suhaeli Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro alga cokelat (Sargassum sp.); daun teh; udang; oksidasi; antioksidan   Penggunaan antioksidan menggunakan bahan alami bertujuan untuk menghambat oksidasi dan memperpanjang masa simpan. Salah satu potensi rumput laut cokelat dan teh  yaitu mempunyai kandungan fenol dan flavonoid yang bersifat antioksidan. Produk hasil perikanan seperti udang cepat mengalami proses kemunduran mutu karena kandungan air dan proteinnya yang tinggi. Tujuan penelitian ini adalah mengetahui potensi alga cokelat  (Sargassum sp) dan daun teh (Camellia sinensis) dalam menghambat oksidasi pada udang vannamei (Litopenaeus vannamei) selama penyimpanan dingin. Materi yang digunakan dalam penelitian ini adalah alga cokelat, daun teh, dan udang vannamei. Metode penelitian yang digunakan adalah eksperimental menggunakan rancangan acak lengkap (RAL) pola faktorial. variabel yang diamati adalah nilai Angka Peroksida (PV), Thiobarbituric Acid (TBA), Total Volatil Base Nitrogen (TVBN), dan nilai organoleptik. Ekstrak alga cokelat memiliki senyawa fenol dan flavonoid berturut-turut sebesar 1,81% dan 0,102% dengan IC50 sebesar 98,236 ppm. Ekstrak daun teh memiliki senyawa fenol dan flavonoid berturut-turut sebesar 0,867% dan 0,042% dengan IC50 sebesar 122,673 ppm. Hasil uji untuk melihat tingkat oksidasi lemak yaitu Peroksida Value dan Thiobarbituric Acid  menunjukkan ekstrak alga cokelat dan ekstrak daun teh memberikan pengaruh nyata dan dapat menghambat oksidasi pada udang vannamei hingga hari ke – 12. Hasil uji TVBN dan nilai organoleptik menunjukkan ekstrak alga cokelat memberikan pengaruh yang lebih tinggi daripada ekstrak daun teh.     One of the potential of brown seaweed that has phenol and flavonoid compounds that are antioxidants. Tea also contains compounds an antioxidants. The use of antioxidants using natural materials was to prevent oxidation and extend the shelf life. Shrimp highly perishable since the high water and protein contents. The purpose of this research was to determine the potential of brown algae (Sargassum sp) and tea leaves (Camellia sinensis) for inhibiting oxidation of pasific white shrimp (Litopenaeus vannamei) during refrigerated storage. The material that used in this research was a brown algae, tea leaves, and pasific white shrimp. The research method that used was experimental laboratories with the patterns of completely randomized design test with essentially factorial design. Variables value are PV, TBA, TVBN, and organoleptic value. Extracts of brown algae (Sargassum sp) has phenolic compounds and flavonoid compounds were 1.81% and 0.102% with IC50  98.236 ppm. Tea leaf extract (Camellia sinensis) has phenolic compounds and flavonoids, respectively for 0.867% and 0.042% with IC50 of 122.673 ppm. PV value and TBA value results showed brown algae extract and tea leaf extract significant effect and can inhibit the oxidation of pasific white shrimp until  12 days storage. The result of TVBN value and organoleptic value showed brown algae extact gives higher impact than tea leaf extract.     Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16825 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23052 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190828 2019 eng " 2549-0885 1858-4748 dc STATUS HEMATOLOGI DAN RESPON IMUN IKAN KOI (Cyprinus carpio) YANG TERINFEKSI Myxobolus sp. DENGAN TREATMENT DIMILIN (Hematological Status and Immune Response of Koi Fish (Cyprinus carpio) Infected by Myxobolus sp. With Treatment of Dimilin) Setiawan, feri Brawijaya University Yanuhar, Uun Brawijaya University Kurniawan, Andi Brawijaya University Cyprinus carpio; Myxobolus sp.; Interleukin-6; Hematologi; Eritrosit; Leukosit; Dimilin Koi merupakan ikan hias favorit di pasar nasional dan internasional. Proses budidaya untuk menghasilkan koi dengan kualitas terbaik masih menjadi kendala, salah satunya adanya infeksi parasit Myxobolus sp. yang dapat menyebabkan kematian massal dalam waktu singkat. Myxobolus yang menyerang jaringan ikan dapat menyebabkan kerusakan prah pada jaringan. Banyak cara dilakukan oleh pembudidaya Ikan Koi untuk menghindari infeksi Myxobolus, yaitu dengan pengobatan secara alami dan menggunakan bahan kimia. Penelitian ini bertujuan untuk mengetahui efek hematologi dan respon imun pada Ikan Koi yang terinfeksi parasit Myxobolus dengan pengobatan dimilin. Metode yang digunakan adalah metode eksperimental dengan perlakuan kontrol ikan sehat (A), Ikan koi yang terinfeksi oleh Myxobolus sp. tanpa perlakuan dimilin (B), ikan koi terinfeksi Myxobolus sp dengan perlakuan dimilin 0,02 mg (C), dan ikan yang terinfeksi Myxobolus sp dengan perlakuan dimilin 0,01 mg (D). Pengambilan darah ikan dilakukan dengan metode punksi pembuluh darah bagian caudal dan dilakukan pengamatan hematologi, serta dilakukan pengamatan imunohistokima dengan melihat persentase Diaminobenzidine (DAB) pada ikan. Hasil rata-rata pada perhitungan hematologi leukosit dan eritrosit tertinggi  ditemukan pada ikan yang terinfeksi Myxobolus sp tanpa perlakuan dimilin (B), dengan eritrosit 2.913.334 sel / mm3 dan leukosit 197.184 sel / mm3. Hasil respon imun berdasarkan pengamatan imunohistokimia didapatkan nilai DAB perlakuan A adalah 16%, nilai DAB perlakuan B 42,7%, nilai DAB perlakuan C 25,6%, dan nilai DAB perlakuan D 31,4%. Kesimpulan penelitian ini adalah pemberian dimilin dapat mempengaruhi respon hematologi dan dapat mempengaruhi respon imun pada ikan yang dapat ditunjukkan dengan Interleukin-6 pada ikan dengan hasil DAB immunoratio.   Koi is a favorite ornamental fish in the national and international markets. Cultivation process to produce koi with the best quality is still have problem, one of the problem is parasitic infection of Myxobolus sp. which can cause mass death in a short time. Myxobolus attacks fish tissue can cause severe damage to tissue. Many ways were used by koi fish farmers to avoid Myxobolus infection which  with natural treatment and using chemicals drug. This study aims to determine the hematological effects and immune respons in the koi fish infected with the Myxobolus and treated with dimilin. Experimental method was used in this research with control treatment of healthy fish (A), koi fish infected by Myxobolus sp. without treatment (B), koi fish infected by Myxobolus sp with dimilin treatment 0.02 mg (C), and koi fish infected by Myxobolus sp with dimilin treatment 0.01 mg (D). fish Blood samples were collected with puncture of caudal vessel method and then haematological observations to blood samples, and immunohistokima observations by looking percentage of Diaminobenzidine (DAB) in fish. Highest hematological Results of leukocytes and erythrocytes were found in treatment B, with erythrocytes result 2,913,334 cells / mm3 and leukocyte 197,184 cells / mm3. Immune response result based on immunohistochemical observations with DAB value of treatment A is 16%, treatment B is 42.7%, treatment C is 25.6%, and treatment D is 31.4%. Conclusion in this study that dimilin treatment can affect hematological response and immune response in fish which can be shown with Interleukin-6 in fish with DAB immunoratio results.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23052 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6845 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Site Selection of Ecotourism Development Purwanti, Frida Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro This paper discusses the application of Criterium Decision Plus program in decision making process for selection of ecotourism development area.  The selection was build based on some variable collected from stakeholders which were constructed in hierarchy system and be evaluated by an expert to decide the potential location using pairwise comparison. The result showed that for ecotourism development, the significance factor is government policy; the importance actor is government; the importance goal is increasing income and priority location is coastal area. Keywords : Ecotourism, Decision Making Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6845 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22125 2019-02-19T10:13:28Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/74333 2026-02-05T07:11:14Z saintek:RSA

nmb a2200000Iu 4500 "260203 2026 eng " 2549-0885 1858-4748 dc Anwar, Mochamad Sudrajat, Danu Belyamin, Belyamin Wibowo, Berbudi Mesin freezer merupakan perangkat pendingin yang berperan penting dalam menjaga kualitas bahan pangan dan produk lainnya agar tetap awet serta layak konsumsi. Dalam distribusi dan penyimpanan, khususnya pada sektor perikanan, freezer berfungsi untuk menurunkan suhu produk hingga di bawah titik beku air tanpa menurunkan kualitasnya secara signifikan. Penelitian ini bertujuan untuk membandingkan konsumsi daya listrik dan efisiensi energi pada freezer kapasitas 100 L antara kondisi standar dan kondisi setelah dilakukan modifikasi dengan penambahan subcooler. Pengujian dilakukan selama 240 menit dengan pencatatan data suhu kabin, arus listrik, dan daya listrik setiap 20 menit. Kedua unit freezer menggunakan refrigeran R600a dengan spesifikasi pabrikan yang sama, dan pengujian dilakukan di ruangan dengan suhu sekitar 30 °C untuk meminimalkan pengaruh fluktuasi lingkungan. Tegangan yang digunakan selama pengujian sebesar 220 V, sehingga hasil daya listrik yang tercatat valid dan konsisten. Hasil penelitian menunjukkan bahwa penambahan subcooler mampu meningkatkan kinerja termal freezer melalui percepatan penurunan suhu dan pencapaian suhu minimum yang lebih rendah, yaitu –24 °C, dibandingkan kondisi tanpa perlakuan yang mencapai –21 °C. Konsumsi daya rata-rata freezer dengan subcooler sebesar 60,68 W, lebih rendah dibandingkan freezer tanpa perlakuan sebesar 64,3 W. Analisis efisiensi menunjukkan bahwa freezer dengan subcooler memiliki efisiensi tertinggi sebesar 18,48%. Hasil uji paired sample t-test mengonfirmasi adanya perbedaan signifikan pada daya dan arus listrik antara kedua perlakuan (p < 0,05). Secara keseluruhan, modifikasi subcooler terbukti efektif meningkatkan efisiensi energi serta memberikan penghematan biaya listrik bulanan, sehingga layak dipertimbangkan sebagai metode peningkatan performa freezer kapasitas 100 L. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2026-02-05 07:11:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/74333 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 22, No 1 (2026): SAINTEK PERIKANAN ind Copyright (c) 2026 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23931 2020-07-01T19:01:43Z saintek:RSA

nmb a2200000Iu 4500 "200407 2020 eng " 2549-0885 1858-4748 dc POLA OSMOREGULASI, INDEKS PONDERAL, DAN KEMATANGAN GONAD KEPITING BAKAU (Scylla serrata) DI TAMBAK DESA PESANTREN, KECAMATAN ULUJAMI, PEMALANG Riza, Anastia Afika Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Anggoro, Sutrisno Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suryanti, Suryanti Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Tingkat kerja osmotik; indeks ponderal; kematangan gonad; kepiting bakau Osmoregulasi merupakan aspek yang sangat penting untuk diteliti dalam kegiatan budidaya kepiting bakau yang mana air media hidupnya kerap mengalami perubahan sifat fisika dan kimia. Salinitas memberikan pengaruh terhadap tekanan-tekanan osmotik yang berbeda terhadap tekanan osmotik tubuh organisme perairan, sehingga mengharuskan untuk melakukan proses osmoregulasi untuk menyeimbangkan tekanan osmotiknya. Tujuan dari penelitian ini adalah mengetahui tingkat kerja osmotik (TKO), indeks ponderal, dan kematangan gonad kepiting bakau serta hubungan TKO dengan indeks ponderal dan kematangan gonadnya. Penelitian dilakukan pada bulan Desember sampai Maret 2019. Materi utama yang dijadikan objek pengamatan adalah kepiting bakau yang dibudidaya di tambak Desa Pesantren Ulujami Pemalang. Metode penelitian yang digunakan adalah studi kasus menggunakan analisis deskriptif dan korelasi dengan pengambilan sampel menggunakan metode purposive sampling. Hasil penelitian menunjukkan kepiting bakau di tambak Desa Pesantren memiliki pola osmoregulasi hiperosmotik sedangkan pola osmoregulasi isoosmotik ditunjukkan pada kepiting yang sedang mengalami moulting. Indeks ponderal kurang dari dua sehingga bertubuh pipih dan belum matang gonad. Adapun tekanan osmotik berpengaruh negatif terhadap indeks ponderal dan kematangan gonad kepiting. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-03-02 10:45:05 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23931 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 1 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8100 2015-06-29T01:03:25Z saintek:RSA

nmb a2200000Iu 4500 "130225 2013 eng " 2549-0885 1858-4748 dc PENGARUH SUHU DAN LAMA EKSTRAKSI SECARA PENGUKUSAN TERHADAP RENDEMEN DAN KADAR ALBUMIN IKAN GABUS (The Effect of Temperature and Duration of the Steaming Extraction Albumin Content and Yield from the Fish Gabus (Ophiocephalus striatus)) Nugroho, Matheus Program Studi Teknologi Hasil Perikanan Fakultas Pertanian Universitas Yudharta Pasuruan Tujuan penelitian ini untuk menentukan suhu dan lama ekstraksi pengukusan yang tepat untuk mendapatkan rendemen dan kadar albumin yang optimal dari ikan gabus (Ophiocephalus striatus). Metode penelitian adalah menentukan suhu pada kisaran 40-90 oC, dan ekstraksi secara pengukusan waterbath selama 25-35 menit, untuk mendapatkan rendemen dan kadar albumin ekstrak kasar ikan gabus yang optimal. Pengujian suhu dan lama ekstraksi secara pengukusan terhadap rendemen, kadar albumin dan rendemen albumin daging ikan gabus menggunakan analisa Rancangan Acak Kelompok Faktorial (RAKF). Hasil penelitian menunjukkan bahwa tidak ditemukan interaksi antara berbagai faktor perlakuan dengan semakin tinggi suhu kisaran 40-90 oC, dan lama pengukusan kisaran 25-35 menit. Rendemen albumin tertinggi ekstrak ikan gabus sebesar 2.459 g (100g)-1, oleh suhu pengukusan 60 oC selama 25-35 menit. Kata kunci : Ikan gabus (Ophiocephalus striatus), suhu dan lama ekstraksi pengukusan, rendemen albumin   The objective of this study to determine the temperature and duration of the steaming extraction that right to obtain albumin content and yield that optimal from the fish Gabus (Ophiocephalus striatus). The research method is to determine the temperature in the range 40-90 oC, and the steaming extraction waterbath for 25-35 minutes, to obtain yield and albumin content of fish Gabus coarse extract that optimal. Testing temperature and extraction time is steaming toward yield, albumin content and albumin yield of fish Gabus meat using Group Randomized Factorial design analysis (RAKF). The results showed that no interaction between the various factors treated with the higher temperature range 40-90 oC, and the range of 25-35 minutes longer steaming. The highest albumin yield extract of the common snakehead of 2.459 g (100 g)-1 fish, by steaming temperature 60 °C for 25-35 minutes. Key words : Fish Gabus (Ophiocephalus striatus), extraction temperature and duration of steaming, the albumin yield Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8100 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/290 2025-04-26T12:41:31Z saintek:RSA

nmb a2200000Iu 4500 "101023 2010 eng " 2549-0885 1858-4748 dc DAYA DUKUNG LINGKUNGAN PERAIRAN TAMBAK DESA MOROREJO KABUPATEN KENDAL Niti Suparjo, Mustofa Tujuan penelitian ini adalah untuk mengkaji daya dukung lingkungan dan mengetahui kualitas air dan tanah tambak di Desa Mororejo, Kecamatan Kaliwungu, Kabupaten Kendal, Jawa Tengah untuk mendukung aktivitas budidaya udang dan ikan bandeng. Penelitian ini dilaksanakan pada bulan Juli 2008 di tambak udang dan bandeng di Desa Mororejo. Materi yang digunakan adalah sampel air tambak untuk pengukuran DO, CO2, suhu air, pH air, salinitas air, amonia, nitrit, nitrat, ortoposfat dan kelimpahan plankton serta sampel tanah tambak untuk pengukuran suhu tanah, pH tanah, dan tekstur tanah. Metode penelitian yang digunakan adalah metode survey. Pengambilan sampel dilakukan pada 3 petak tambak yang terdiri dari 2 tambak bandeng (tambak 1 dan 2) serta 1 tambak udang (tambak 3) dengan 3 titik pengulangan tiap tambak. Untuk perkiraan daya dukung lingkungan pada tambak yang akan diteliti digunakan metode pembobotan. Hasil penelitian menggunakan metode pembobotan menunjukan hasil tambak udang (tambak 3) memiliki kisaran nilai 27,5-31, tambak bandeng (tambak 1 dan 2) memiliki kisaran nilai yang sama yaitu 29,5-32, yang menunjukan bahwa tambak udang dan bandeng di Desa Mororejo memiliki daya dukung sedang sampai tinggi dengan kondisi kualitas air dan tanah yang cukup layak tetapi untuk salinitas air serta kandungan amoniak bernilai cukup tinggi yaitu berkisar antara 32-34‰ dan 0.93-1.54 mg/l sehingga kurang layak untuk mendukung kegiatan budidaya. Tambak udang dan bandeng Desa Mororejo, Kecamatan Kaliwungu, Kabupaten Kendal memiliki daya dukung sedang sampai tinggi dengan kandungan amoniak dan salinitas air sebagai faktor pembatas. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2010-10-23 08:20:45 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/290 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 1 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/50460 2023-02-10T03:38:44Z saintek:RSA

nmb a2200000Iu 4500 "221209 2022 eng " 2549-0885 1858-4748 dc ANALYSIS OF THE EFFECT OF FISHERMEN'S CHARACTERISTICS ON THE MANAGEMENT OF WEDGEFISH (Rhynchobatus sp.) AND GIANT GUITARFISH (Glaucostegus sp.) WITH PERCEPTION AS AN INTERVENING VARIABLE IN TASIKAGUNG FISHING PORT Riza, Abdul Harits Ali Department of Capture Fisheries, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Jl. Prof. Jacub Rais, Tembalang, Semarang, Indonesia 50275 Mudzakir, Abdul Kohar Department of Capture Fisheries, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Jl. Prof. Jacub Rais, Tembalang, Semarang, Indonesia 50275 Setyawan, Hendrik Anggi Department of Capture Fisheries, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Jl. Prof. Jacub Rais, Tembalang, Semarang, Indonesia 50275 https://orcid.org/0000-0001-7708-5557 Wedgefish; Giant Guitarfish; Characteristics; Perception; Support The endangered stingray species wedgefish (Rhynchobatus sp.) and giant guitarfish (Glaucostegus sp.) require good management, which must be implemented by examining the characteristics and perceptions of fishermen in Tasikagung Fishing Port, Rembang Regency. This study aims to know how the characteristics and perceptions of fishermen affected management support. The research method used in this study is a quantitative method and data analysis through linear regression and path analysis. Before being evaluated, the data were first validated with classical assumptions, including the multicollinearity test, linearity test, and normality test. The coefficient of determination (R2), the F test, and the t-test are then used to analyze the data to see whether the model is accurate. The sample determination method used causal-comparative, and the sampling method used was accidental sampling with 44 respondents. Fishermen characteristics as variable X (independent) are divided into 2 variables, namely Education (X1) and Knowledge (X2), Perception as variable Y (intervening), and Management Support as variable Z (dependent). Education and knowledge positively influence perception with a constant X1 = 0.177, and X2 = 0.556. Education, Knowledge, and Perception positively affect support with a constant X1 = 0.296; X2 of 0.028, and Y = 0.655. Y does not mediate the effect of X1 on Z, but does mediate the effect of X2 on Z. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-11-24 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/50460 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 3 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/28548 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200819 2020 eng " 2549-0885 1858-4748 dc Suminto, Suminto Mayasari, Aridha Dian Subandiyono, Subandiyono Chilmawati, Diana 0000-0002-9522-2719 Kopepod, Oithona sp., adalah salah satu zooplankton.yang memiliki kelimpahan cukup tinggi dan memiliki distribusi yang luas di laut. Oithona sp. memiliki kandungan nutrisi yang tinggi, sehingga layak untuk dijadikan pakan alami ikan maupun udang. Oithona sp. mengandung kalsium, EPA dan DHA yang lebih tinggi daripada Artemia sp. Kultur Oithona sp. sebagai sumber pakan larva udang maupun ikan memerlukan fitoplankton yang cukup banyak pula. Kultur fitoplankton memiliki teknik penyimpanan dan teknik pemberian pakan yang rumit jika dibandingkan dengan pakan buatan. Spesies yang digunakan dalam penelitian ini yaitu Oithona similis. Penelitian bertujuan untuk mengkaji pengaruh dan dosis kombinasi pakan buatan dan sel Chaetoceros calcitran  terhadap performa pertumbuhan O. similis. Penelitian ini menggunakan metode eksperimen dan rancangan acak lengkap (RAL) yang terdiri atas lima perlakuan dan tiga kali ulangan, yaitu dengan kombinasi (A) pakan buatan 0% + C. calcitrans 100%, (B) pakan buatan 25% + C. calcitrans 75%, (C) pakan buatan 50% + C. calcitrans 50%, (D) pakan buatan 75% + C. calcitrans 25%, (E) pakan buatan 100% + C. calcitrans 0%. Hasil penelitian menunjukkan bahwa kombinasi pakan buatan dan C. calcitrans berpengaruh nyata terhadap kepadatan, laju pertumbuhan relatif, laju pertumbuhan dan produksi telur O. similis. Perlakuan C (pakan buatan 50% + C. calcitrans 50%) memberikan nilai terbaik pada kepadatan total 8,70±0,20 ind, laju pertumbuhan 0,23±0,009 ind/hari, laju pertumbuhan relatif 38,50±1,00%/hari dan produksi telur 18,00±0,72 telur/ind. Dosis optimum pakan buatan terhadap kepadatan total, laju pertumbuhan, laju pertumbuhan relatif dan produksi telur sebesar 37,2%, 38,9%, 37,1% dan 36,1%.   Copepod, Oithona sp., is one of  zooplankton. Oithona sp. that distribute widely and abundance in the sea. Oithona sp. contains high nutritional value. Therefore, it is suitable use Oithona sp. as natural food for fish or shrimp. Oithona sp. contains calcium, EPA, and DHA which is higher than Artemia sp. Oithona sp. as a source of natural food for shrimp and fish larvae also need phytoplankton sufficient. Storing and feeding techniques of phytoplankton as natural food are more complicated than artificial feed. This study aims to determine the effect, and the combination dosage of artificial feed and C.calcitrans cells on the growth performance of O. similis. This study used an experimental method and a completely randomized design (CRD) which consisted of five treatments and three replication, with combination of (A) artificial feed 0% + C. calcitrans 100%, (B) artificial feed 25% + C. calcitrans 75%, (C) artificial feed 50% + C. calcitrans 50%, (D) 75% artificial feed + 25% C. calcitrans; (E) 100% artificial feed + C. calcitrans 0%. The results showed that the combination of artificial feed and C. calcitrans significantly affected on density, relative growth rate, growth rate and egg production. The C treatment gave the best value at total density of 8.70 ± 0.20 ind, growth rate 0.23 ±0.009 ind/day , relative growth rate of 38.67 ± 0.58%/day, and egg production 18 .00 ± 0.72 egg/ind. The optimum dose of artificial feed and C. calcitrans on density, relative growth rate, growth rate and egg production were 37.2%, 38.9%, 37.1%,, and 36.1%. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/28548 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN ind Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8117 2015-06-29T15:41:33Z saintek:RSA

nmb a2200000Iu 4500 "140225 2014 eng " 2549-0885 1858-4748 dc APLIKASI GPS DALAM PENENTUAN POSISI PULAU DI TENGAH LAUT BERDASARKAN METODE TOPONIMI (STUDI KASUS PULAU MOROTAI Gps Application for Determining the Island Position on the Sea Based on the Toponymy Method (Case Study for Morotai Island and Its Surrounding) Yulius, Yulius Pusat Penelitian dan Pengembangan Sumberdaya Laut dan Pesisir Balitbang KP-KKP Jakarta Salim, H.L Pusat Penelitian dan Pengembangan Sumberdaya Laut dan Pesisir Balitbang KP-KKP Jakarta Pengelolaan sumberdaya kelautan telah menjadi perhatian dalam kaitannya dengan pembangunan berkelanjutan. Dilain pihak teknologi mengenai pendataan unsur-unsur laut menjadi sangat penting artinya dalam pengelolaan sumber daya wilayah. Guna mendukung pengelolaan wilayah laut dan unsur-unsur geografi laut (pulau) di wilayah kedaulatan Indonesia, diperlukan teknologi GPS yang digunakan untuk menentukan posisi pulau di tengah laut berdasarkan metode toponimi. Survei yang dilakukan berhasil mengindentifikasi posisi ketiga puluh pulau tersebut berikut dengan koordinat lintang dan bujur berdasarkan penentuan GPS. Kata kunci : Global Positioning System (GPS), pulau, toponimi   A marine resources management nowadays has became attention in relation with a sustainable development concept. On the other hand, technology about marine elements is very important for marine resources management and for marine use management. In order to support maritime territory management and its geographical elements (Island) in Indonesian territory, it is required to use GPS technology to determine the position of the island on the sea based on island toponymy method. The Survey from Morotai Island and its surrounding has identified the position of thirty islands following the latitude and longitude coordinates based on the determination of GPS. Key words : Global Positioning System (GPS), island, toponymy Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 13:33:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8117 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 2 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2060 2020-12-07T08:06:38Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Analysis of Growth Gracilaria sp. In Shrimp Pound From The Level of Sedimentation Widyorini, Niniek Program Studi. Manajemen SumberDaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Due to the increasing of Gracilaria sp demand in international market, intensive culture is required for it. Used niche of shrimp pound could be give adventages in Gracilaria sp culture, and also Gracilaria sp culture in shrimps pound can be used as shelter for the shrimp from direct sunlight. The aim of this research are to know sedimentation effect in shrimp pound its relationship in Gracilaria sp growth and water quality because of existing Gracilaria sp in the pound.The research  on June until December 2005.Experiment research method is used in this research. Data of Gracilaria sp growth and level of sedimentation will be collected in 7 (seven) weeks in one week time interval “rakit apung” methods is used in this research and its located the near of water inlet, pound fields, and near the water outlet. Corelation and regration are used to data analysis. Temperature, salinity, pH, depth, water flow and transparency of the water will be analyzed for water quality. As the result, the average of growth level of Gracilaria sp which is located in the fields pound higher than Gracilaria which located both near the water inlet and outlet, and the average of sedimentation level in the field pound less than both near the water inlet and outlet. In corelation regretion analysis found an interaction between level of sedimentation and the growth of Gracilaria sp especially which is located near the water inlet. The water quality still good for Gracilaria sp. Key Words: Sedimentation, Gracilaria sp, Growth Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2060 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 1 (2010): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/49506 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230426 2023 eng " 2549-0885 1858-4748 dc Anggo, Apri Dwi Departemen Teknologi Hasil Perikanan, Universitas Diponegoro, Jl. Prof. SUdarto, SH, Tembalang, Semarang, Indonesia. 50275. https://orcid.org/0000-0002-9240-9537 Suharto, Slamet Riyadi, Putut Har Kandungan nutrisi daging ikan karper (Cyprinus carpio) membuatnya mudah mengalami kerusakan. Berbagai upaya untuk mempertahankan kualitas daging ikan dan mempunyai masa simpan yang lebih lama telah dilakukan diantaranya dengan metode nonthermal seperti penggunaan kejut listrik voltase tinggi. Tujuan dari penelitian ini adalah untuk melihat pengaruh pemberian kejut listrik voltase tinggi terhadap perubahan sifat fisik dan kimia daging ikan karper. Alat utama yang digunakan adalah seperangkat alat kejut listrik voltase tinggi dan materi yang diamati adalah daging ikan karper. Metode penelitian bersifat eksperimental laboratoris menggunakan desain penelitian Rancangan Acak Lengkap (RAL). Perlakuan yang diberikan adalah perbedaan kekuatan voltase listrik yaitu 30 kV, 60 kV, dan 90 kV dan tanpa perlakuan kejut listrik. Parameter yang diamati berupa kandungan TVB-N, aw, storage loss, water holding capacity (WHC) serta perubahan warna daging ikan. Hasil penelitian menunjukkan bahwa daging yang diberikan perlakuan kejut listrik voltase tinggi mempunyai perbedaan nyata antara kontrol dengan perlakuan terhadap kualitas daging pada parameter TVB-N, WHC dan whiteness serta nilai L* (lightness) pada indikator warna, sedangkan parameter Aw, storage loss dan nilai a* dan nilai b* pada indikator warna, tidak terjadi perbedaan nyata antara kontrol maupun antar perlakuan. Nilai TVB-N dan nilai L* (lightness) semakin rendah sedangkan nilai storage loss, WHC dan indikator whiteness semakin tinggi seiring dengan kenaikan voltase kejut listrik. Dalam penelitian ini, perlakuan dengan kejut listrik voltase tinggi bisa mempengaruhi kualitas fisik dan kimiawi daging ikan karper dengan voltase 60 kV paling banyak memberikan perubahan pada kualitas daging ikan karper.   The nutritional content in the carp meat makes the meat easier to spoil. Various methods to maintain the quality of fish meat and to have a longer shelf life have been carried out, including non-thermal methods such as the use of high-voltage electric shocks. The purpose of this study was to examine the effect of high-voltage electric shock on changes in the physical and chemical properties of carp meat. The main equipment used is a set of high-voltage electric shocks and the material being observed is carp fish. The research method is an experimental laboratory using a research design that is a completely randomized design (CRD). The treatment was the difference in electric voltage strength of 30 kV, 60 kV, and 90 kV and untreated with electric shock. The parameters determined are TVB-N, aw, Storage loss, water holding capacity (WHC) and changes in the color of fish flesh. The results showed that the meat that was given high-voltage electric shock treatment had a significant difference between the control and the treatment of meat quality on the TVBN, WHC and whiteness parameters as well as the L* (lightness) value on the color indicator, while the parameters Aw, storage loss and the a* and b* values in color indicators did not show a significant difference between the control and between treatments. The TVB-N and L* (lightness) values are getting lower while the storage loss, WHC and whiteness indicators are getting higher along with the increase in the electric shock voltage. In this study, treatment with high-voltage electric shock could affect the physical and chemical quality of carp meat with a voltage of 60 kV giving the most changes to the quality of carp meat. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/49506 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/26666 2022-04-19T17:30:03Z saintek:RSA

nmb a2200000Iu 4500 "201222 2020 eng " 2549-0885 1858-4748 dc Akbarurrasyid, Muhammad Politeknik Kelautan dan Perikanan Tarigan, Rani Rehulina Pietoyo, Atiek Budidaya udang vaname merupakan salah satu usaha bidang perikanan yang memiliki nilai ekonomis tinggi yang dikembangkan di pesisir Teluk cempi. Kegiatan budidaya udang vaname di Pesisir Teluk Cempi mengalami beberapa permasalahan yang harus diselesaikan sebagai upaya untuk menjaga keberlajutan usaha budidaya. Secara umum, masalah kegiatan usaha budidaya udang vaname di pesisir Teluk Cempi, yakni: alih fungsi lahan, pembiayaan dan tenaga kerja serta metode budidaya yang masih tardisional dan semi intensif. Secara umum, masalah budidaya udang vaname di Teluk Cempi dikelompokkan menjadi 5 faktor, yakni: faktor ekologi, sosial, ekonomi, kelembagaan dan teknologi. Maka, diperlukan analasis keberlanjutan usaha budidaya udang vaname untuk mendapatkan alternatif strategi keberlanjutan berdasarkan faktor-faktor tersebut. Faktor keberlanjutan terdiri dari beberapa variabel yang dikumpulkan melalui proses survey dan wawancara pada 30 orang responden yang terdiri dari Dinas Kelautan dan Perikanan, pembudidaya dan masyarakat local. Data yang diperoleh dianalisis dengan menggunakan Analitycal Hierarcy Process (AHP) dan SWOT (Strengths, Weaknesses, Opportunities and Treaths) untuk mendapatkan alternatif strategi keberlanjutan usaha dan nilai strategi keberlanjutan. Hasil penelitian didapatkan alternatif strategi keberlanjutan usaha budidaya udang vaname, yakni: (1) Menciptakan lapangan pekerjaan dengan memanfaakan sumberdaya ekologi, kualitas dan kuantitas air untuk kegiatan usaha budidaya udang vaname (1,229); (2) Meningkatkan soft skill dan pengetahuan terkait dengan penguasaan teknologi budidaya udang vaname intensif dan super intensif untuk meningkatkan pendapatan masyarakat (0,964); (3) Pemberdayaan masyarakat pesisir terkait dengan prospek budidaya udang vaname (0,766); (4) Peran serta dan partisipasi pemerintah Daerah dalam meningkatkan sumberdaya manusia melalui upaya penyuluhan dan pelatihan (0,366); (5) Demonstration of Pond yang berkelanjutan dengan manajemen produksi dan keuangan yang baik (0,272); (6) Menjadikan kegiatan budidaya udang vaname sebagai salah satu program prioritas Daerah yang ditunjang dengan ketersedian fasilitas seperti Balai Budidaya Air Payau dan lembaga finansial (0,272); dan (7) Penerapan Better Management practices (0,189).    Vaname shrimp farming is one of the businesses in the field of fisheries that has high economic value developed on the coast of Cempi Bay. Vaname shrimp farming activities in Cempi Bay Coastal experience several problems that must be resolved as an effort to maintain the sustainability of the aquaculture business. In general, the problem of vaname shrimp farming activities on the coast of Cempi Bay, namely: land use change, funding and labor as well as traditional and semi-intensive cultivation methods. In general, the problem of vaname shrimp cultivation in Cempi Bay is grouped into 5 factors, namely: ecological, social, economic, institutional and technological factors. Thus, an analysis of the sustainability of vaname shrimp farming is needed to obtain an alternative sustainability strategy based on these factors. The sustainability factor consists of several variables collected through a survey and interview process of 30 respondents consisting of the Department of Maritime Affairs and Fisheries, farmers and local communities. The data obtained were analyzed using Analytical Hierarchy Process (AHP) and SWOT (Strengths, Weaknesses, Opportunities and Treatments) to obtain alternative business sustainability strategies and the value of sustainability strategies. The results of the study obtained a lternatif strategy of sustainability effort cultivating grass sea , namely : (1) Creating a field work with leveraged resources ecology , quality and quantity of water for the activities of the business of aquaculture shrimp vannamei (1,229); (2) Improving soft skills and knowledge related to the mastery of intensive and super intensive vannamei shrimp cultivation technology to increase community income (0.964); (3) Empowerment of coastal communities related to the prospect of vannamei shrimp farming (0.766); (4) The role of sertadan participation of the government of Regions to increase the resources humans through the efforts of education and training (0.366); (5) Demonstration of Pond are continuing with the management of production and finance were good (0.272); (6) Make the activities of aquaculture shrimp vannamei as one of the program priority areas supported by the availability of facilities such as the Center for Aquaculture Water Brackish and institutions financially (0.272); and (7) Implementation of Better Management practices (0.189)..  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-04-30 15:40:35 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/26666 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 4 (2020): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8331 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc The Difference in Abundance of Echinoideas on Coral Ecosystem and Seagrass Beds in Pancuran Belakang, Karimunjawa, Jepara Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ruswahyuni, Ruswahyuni Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Phyllum of echinoderms has a large role on the ecosystems of coral reefs and seagrass beds, especially their various roles in food web, which are herbivorous covering, carnivorous, or as detritus eaters. One of the echinoderms which is always found in the coral reefs region and seagrass beds is the echinoidea. Echinoidea mostly inhabits coral reef ecosystem and seagrass beds and found on hard substrates, especially in seagrass beds substrates that consist of mixtures of sand and crushed corals. The purpose of this research was to know the difference in the echinoidea abundances of coral reef ecosystem and seagrass beds in Pancuran Belakang, Karimunjawa, Jepara in the month of May 2014. Research methodology that was used is a method of direct observation that is by means of observing the species of echinoidea found in coral reef ecosystems and seagrass beds and water quality conditions as supporting data. The research results showed that the cover of coral reefs and seagrass beds in Pancuran Belakang Karimunjawa in the category of good which are of 55.29 % on coarl reef and 61.94 % seagrass. The echinoidea that was found in reefs and seagrass beds is Diadema setosum (123;36 ind (150 m)-2), Diadema antilarum (63;18 ind(150 m)-2), Echinothrix calamaris (34;22 ind (150 m)-2), Mespilia globulesa (12;0 ind(150 m)-2), and Echinometra mathaei (14;0 ind(150 m)-2), The independent t test with SPSS significant value of 5 % t table = 2.776 > t calculated = -2.319. Therefore, Ho was accepted that there is a significant difference of the echinoidea on the coral reefs and seagrass beds. Keywords : Echinoideas; Coral Reef; Seagrass, Pancuran Belakang and Karimunjawa Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8331 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2753 2020-09-17T10:49:07Z saintek:RSA

nmb a2200000Iu 4500 "100813 2010 eng " 2549-0885 1858-4748 dc The Addition of Ammonia Solution with Different Concentrations in the Sperms on the Percentage Ovulation Egg of Abalone, Haliotis asinina Suminto, Suminto Program Studi Budidaya Perairan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto, SH. Kampus Tembalang Nuriman, Agus Archan Program Studi Budidaya Perairan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto, SH. Kampus Tembalang. Chilmawati, Diana Program Studi Budidaya Perairan Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Soedarto, SH. Kampus Tembalang. The aim of this research was to know the impact of addition of ammoniak in different concentration in the sperm on the percentage of egg ovulation. The research method was carried out by completely randomized design with four treatments and three replicates, respectively. Those treatments were the addition of ammoniac solution with concentration of 0% (treatment A), 0.005% (treatment B), 0.010% (treatment C), and 0.015% (treatment D). The data was analyzed by using ANOVA and Duncan’s Multiple Range Test to know the effect of between the other treatments. The results showed that was the highly significant difference effect (p<0.01) on the egg ovulation of Abalone (H. asinina). The highest egg ovulation rate was obtained in treatment B (94.67% ). The ovulation rate was significantly higher than those in treatments C, D, and A, respectively. According to the results, the best concentration of the ammonia solution to the abalone sperm added was 0.005%. Furthermore, the regression test also showed a positive, linear relationship between spermatozoa motility rate and egg ovulation rate. However, the analysis of orthogonal polymonial provided a ammonia solution with the highest ovulation rate of 0.0057%.   Keywords: Concentration, ammonia solution, ovulation egg, abalone, H. asinina Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 09:56:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2753 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 1 (2009): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/55568 2025-05-15T10:47:16Z saintek:RSA

nmb a2200000Iu 4500 "231231 2023 eng " 2549-0885 1858-4748 dc Pasisingi, Nuralim Gorontalo State University https://orcid.org/0000-0001-9655-8540 Bilale, Mohamad Sahril Mokoagow, Ogin Sutanto Kasim, Faizal Selar termasuk komoditas ikan laut yang bernilai ekonomis karena permintaan pasar yang tinggi dan didukung oleh ketersediaan populasi di alam sepanjang tahun.  Truss morfometrik ikan merupakan salah satu karakter terukur yang umum diterapkan dalam studi morfologi ikan sebagai potensi pembeda seksual ikan pada spesies tertentu. Tujuan penelitian ini adalah menyajikan informasi mengenai morfologi, menentukan rasio truss morfometrik terhadap panjang tubuh total yang dapat dijadikan karakter pembeda seksual, serta membandingkan pola pertumbuhan Selar crumenophthalmus jantan dan betina. Jumlah sampel sebanyak 100 ekor dikumpulkan secara random di Tempat Pendaratan Ikan Tenda Kota Gorontalo selama dua hari penangkapan pada bulan Juni 2022. Hasil pengamatan morfologi menunjukkan bahwa bentuk tubuh S. crumenophthalmus adalah kompres dengan tipe sisik sikloid. Bagian dorsal tubuh berwarna biru gelap kehijauan, bagian ventral berwarna silver cenderung putih, terdapat area tipis berwarna kuning membujur dari batas operkulum sampai batang ekor pada sisi lateral tubuh yang terletak di atas linea lateralis, sirip kaudal berbentuk cagak dan simetris, memiliki rumus sirip DIX, 24-27 dan AIII, 21-23. Terdapat 14 truss morfometrik yang dapat dijadikan sebagai ciri pembeda S. crumenopthalmus jantan dan betina yaitu 1 karakter pada bagian kepala (A4), 6 karakter pada tubuh bagian anterior (B1, B2, B4, B5, B6, B9), 3 karakter pada tubuh bagian posterior (C2, C5, C6), dan 4 karakter pada bagian ekor (D1, D2, D3, D5). Adapun pola pertumbuhan spesies jantan dan betina pada sampel riset ini sama-sama bersifat allometrik positif.   Selar is a marine fish commodity that has economic value due to high market demand and is supported by the availability of natural populations throughout the year. Fish morphometric truss is one of the measurable characteristics that is commonly applied in the study of fish morphology as a potential sexual differentiation of fish in certain species. The aim of this research is to present information regarding morphology, determine the ratio of morphometric truss to total body length which can be used as a sexual distinguishing character, and compare the growth patterns of male and female Selar crumenophthalmus. A total of 100 samples were collected randomly at the Gorontalo City Tent Fish Landing Site during two days of fishing in June 2022. The results of morphological observations showed that the body shape of S. crumenophthalmus was compressed with cycloid scale type. The dorsal part of the body is dark greenish blue, the ventral part is silver, and tends to be white, and there is a thin yellow area stretching from the border of the operculum to the caudal peduncle on the lateral side of the body which is located above the linea lateralis, the caudal fin is forked and symmetrical, has the fin formula DIX, 24-27 and AIII, 21-23. There are 14 morphometric trusses that can be used as distinguishing characteristics of male and female S. crumenopthalmus, namely 1 character on the head (A4), 6 characters on the anterior body (B1, B2, B4, B5, B6, B9), 3 characters on the body the posterior (C2, C5, C6), and 4 characters in the tail (D1, D2, D3, D5). The growth patterns of male and female species in this research sample were both positive allometric. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-12-29 08:03:59 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/55568 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 4 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/33006 2021-11-30T12:01:22Z saintek:RSA

nmb a2200000Iu 4500 "210423 2021 eng " 2549-0885 1858-4748 dc MICROALGAE COMMUNITY AS AQUATIC QUALITY BIOINDICATOR IN PENITI ESTUARY WEST KALIMANTAN Apriansyah, Apriansyah 1Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura Safitri, Ikha 1Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura Risko, Risko Marine Science Department, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura Afdal, Afdal Oceanographic Research Center LIPI, Jl. Pasir Putih 1, Ancol Timur, Jakarta Utara Arsad, Sulastri Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Universitas Brawijaya Microalgae, bioindicator, estuaries Estuaries are biogeochemical hot spots; they receive large inputs of nutrients from land and oceans to support high primary productivity rates. Estuaries also as a place for waste disposal allowing the accumulation that endangers the environment and organisms. Water quality assessment can be done by analyzing physical, chemical, and biological characteristics using microalgae. This study aimed to analyze the microalgae community as aquatic environment bioindicator. Survey method was used and sampling location was in four different sites of Peniti Estuary by purposive sampling. Identification of microalgae, density, biological indexes, and water quality measurements was taken in this research. The result showed microalgae community consists of 68 genera and Euglenophyceae was a component of microalgae with the highest percentage of abundance (60.93%). The most commonly found genera were Trachelomonas, Phacus, Lepocinclis, and Sphaerellopsis. The abundance of microalga was ranging from 0.5-2141.5 ind/L. Biological indexes indicate that Peniti estuary environment was belonging to moderately polluted and water eutrophication. The abundance of microalgae was influenced by physico-chemical factors such as temperature, current, nitrate and phosphate content. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/33006 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/10559 2018-02-22T21:54:50Z saintek:RSA

nmb a2200000Iu 4500 "150828 2015 eng " 2549-0885 1858-4748 dc PENGARUH BATING AGENTDARI RAGI TEMPE (Rhizopus oligosphorus) TERHADAP KUALITAS KULIT IKAN NILA (Oreochromis niloticus) SAMAK The Effect of Bating Agent from Ragi Tempe(Rhizopus oligosphorus) to the Quality of Nila (Oreochromis niloticus) Leather Hidayati, Arlina Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Riyadi, Putut Har Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rianingsih, Laras Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro ABSTRAK   Isolat Rhizopus oligosphorus, mengandung enzim protease yang mudah diperoleh dalam bentuk ragi tempe dan terjangkau harganya sehingga dapat digunakan sebagai alternatif pengganti bating agent komersial yang harganya mahal serta tidak ramah lingkungan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh Rhizopus oligosphorus sebagai bating agent terhadap kualitas kulit ikan Nila (Oreochromis niloticus) samak dan mencari konsentrasi dan lama bating terbaik dari isolat Rhizopus oligosphorus sebagai bating agent. Materi yang digunakan dalam penelitian ini adalah kulit ikan Nila (Oreochromis niloticus) dan isolat Rhizopus oligosphorus dari ragi tempe komersial merk RAPRIMA. Metode penelitian yang digunakan adalah eksperimental lapangan menggunakan Rancangan Acak Lengkap dengan Pola Faktorial yaitu faktor A (konsentrasi isolat Rhizopus oligosphorus: 0,5%; 1%; 1,5%; 2%; dan 2,5%) dan Faktor B (Lama bating : 30 menit, 60 menit dan 90 menit). Parameter yang di uji adalah kadar protein terlarut pada limbah bating, kadar krom, kadar abu, kekuatan tarik, kemuluran, kekuatan sobek, dan suhu kerut. Berdasarkan hasil penelitian diperoleh nilai kadar protein terlarut pada limbah bating antara 0,28 – 1,08%; kadar krom 2,19 – 2,43%; kadar abu 4,38% – 4,95%; kekuatan tarik 1647,43 – 2161,93 N/cm2; kemuluran 90,36 – 109,11%; kekuatan sobek 297,94 – 472,85 N/cm; dan suhu kerut 98,33 – 101 0C. Hasil penelitian menunjukkan bahwa faktor perbedaan konsentrasi berpengaruh nyata (P<0,05) terhadap kadar protein terlarut, kadar krom, kadar abu, kekuatan tarik, kemuluran, kekuatan sobek, dan suhu kerut. Sedangkan faktor lama bating berpengaruh nyata (P<0,05) terhadap kadar protein terlarut, kadar krom, kadar abu, kekuatan tarik, kemuluran, kekuatan sobek, dan suhu kerut. Interaksi kedua faktor berpengaruh nyata (P<0,05) terhadap kadar protein terlarut, kadar krom, dan kekuatan tarik, kekuatan sobek. Perlakuan terbaik yaitu pada penggunaan konsentrasi Rhizopus oligosphorus 2% dengan lama bating 90 menit dengan suhu kerut (1010C), protein terlarut (0,88%) dari limbah bating dan telah memenuhi persyaratan mutu untuk kekuatan tarik (2161,93 N/cm2), dan kekuatan sobek (441,31N/cm) untuk kulit Ular Air Tawar (SNI 06-4586-1998), namun tidak memenuhi persyaratan mutu kulit dari nilai kemuluran (92,73%), kadar krom (2,36%) dan kadar abu (4,84%).   Kata kunci : Kulit ikan Nila, Bating agent, Protease, Rhizopus oligosphorus   ABSTRACT   Rhizopus oligosporus isolate have the protease enzyme. This isolate is easily to find in the market in the form of termpeh starter and cheap so it can be used as an alternative to the commercial bating agent that are expensife and not environmentally friendly. The aim of the research is to know the effect of Rhizopus oligosphorus as bating agent to the quality of leather and to find the best concentration and duration of bating from tempeh starter as bating agent. The material used in this research were Nila (Oreochromis niloticus) skin and isolate of Rhizopus oligosphorus from commercial tempeh starter RAPRIMA. The research method used was experimental field. Analysis data in this research used an completely randomized factorial experimental design. Factor A (concentrations of isolate Rhizopus oligosphorus: 0,5%; 1%; 1,5%; 2%; and 2,5%) and factor B (duration of bating : 30 minute, 60 minute and 90 minute). The parameter tested in this reseacrh are soluble protein from bating waste, chrome content, ash content, tensile strength, % elongation, tearing strength, and shrinkage temperature. Based on the result, the value of soluble protein from bating waste 0,28 – 1,08%; chrome content 2,19 – 2,43%; ash content 4,38% – 4,95%; tensile strength 1647,43 – 2161,93 N/cm2; % elongation 90,36 – 109,11%; tearing strength 297,94 – 472,85 N/cm; and shrinkage temperature 98,33 – 101 0C. The results of the research showed that concentration of Rhizopus oligosphorus, had significantly (P<0.05) for soluble protein from bating waste, chrome content, ash content, tensile strength, % elongation, tearing strength, and shrinkage temperature. Meanwhile duration of bating factor had significantly (P<0.05) for soluble protein from bating waste, chrome content, ash content, tensile strength, % elongation, tearing strength, and shrinkage temperature. Interaction of each factor had significantly (P<0.05) for soluble protein from bating waste, chrome content, tensile strength, and tearing strength. Concentration of Rhizopus oligosphorus 2,0% with duration 90 minute was the best treatment with shrinkage temperature (1010C), soluble protein content (0,88%) and fulfilled the quality criteria tensile strength (2161,93 N/cm2), tearing strength (441,31 N/cm) for Fresh Water Snake Leather (SNI 06-4586-1998). However not fulfilled in elongation at break (92,73%),chrome content (2,36%) and ash content (4,84%). Keywords : Nila’s skin, Bating Agent, Protease, Rhizopus oligosphorus  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-08-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/10559 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/50467 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230501 2023 eng " 2549-0885 1858-4748 dc Muchlissin, Sakti Imam Magister of Marine Science, Diponegoro University https://orcid.org/0000-0002-9503-4654 Sabdono, Agus https://orcid.org/0000-0003-0185-8378 Wijayanti, Diah Permata https://orcid.org/0000-0003-0326-141X Produksi plastik semakin meningkat tiap tahunnya yang  didukung pula oleh pola konsumsi dan tren urbanisasi yang terjadi. Diprediksi jumlah sampah plastik di lautan akan meningkat menjadi 250 juta ton dalam beberapa tahun mendatang. Sampah plastik tidak bisa didegradasi secara sempurna dan lambat laun akan berubah menjadi mikroplastik, yakni potongan plastik yang memiliki ukuran kurang dari 5 mm. Hewan karang khususnya pada terumbu karang merupakan organisme penyusun utama terumbu karang. Kemampuan makan karang melalui kolom air secara filter feeding dari polip bersilia menjadikan hewan tersebut salah satu organisme terdampak dari mikroplastik. Tujuan penelitian ini yakni mengetahui tutupan terumbu karang dan genus karang serta kelimpahan mikroplastik pada terumbu karang di BTN Karimunjawa. Metode untuk menentukan tutupan karang adalah Point Intercept Transect (PIT) 50 Meter kedalaman 3-4 M dengan penentuan titik lokasi sampling secara Purposive, dengan pertimbangan lokasi yang banyak mendapatkan aktivitas manusia (antropogenik) dan tidak (non-antropogenik). Terdapat 8 titik sampling yaitu: Pulau Menjangan Kecil, Taka Sendok, Pulau Cemara Kecil, Gosong Cemara, Karang Tengah, Taka Nyamplungan, Pulau Bengkoang dan Pulau Menyawakan. Hasil penelitian menunjukkan bahwa rata-rata tutupan karang adalah 79,71%, sedangkan rata-rata tutupan karang di daerah antropogenik adalah 77,6% dan non-antropogenik adalah 85%. Berdasarkan Keputusan Menteri Lingkungan Hidup dan Kehutanan nomor 4 tahun 2000, tutupan karang tersebut termasuk ke kategori sangat baik. Hasil analisis kelimpahan mikroplastik menunnjukkan rata-rata partikel yang terdapat di karang adalah 27 partikel/50 gram karang atau dengan kata lain ada rata-rata terdapat 540 partikel mikroplastik dalam 1 kg karang utuh. Ada perbedaan cukup signifikan antara kelimpahan mikroplastik di wilayah antropogenik dan non-antropogenik. Kelimpahan mikroplastik di wilayah antropogenik mencapai 146% dibandingkan wilayah non-antropogenik.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 https://ejournal.undip.ac.id/index.php/saintek/article/view/50467 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/42676 2021-12-03T00:57:43Z saintek:RSA

nmb a2200000Iu 4500 "211022 2021 eng " 2549-0885 1858-4748 dc Investigating the Relationship between Sea Surface Temperature and Chlorophyll-a Concentration: An Empirical Finding from the North Coast of Semarang, Indonesia Dina, Mersi Liwa'u Department of Aquatic Resource, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Rohmadoni, Mahdy Department of Geodetic Engineering, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Firdausa, Vina Aulia Faculty of Public Health, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Rusdiyato, Arizal Department of Environmental Engineering, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Akshinta, Pradita Yusi PT Pembangkitan Jawa-Bali, Surabaya, Indonesia Ulkhaq, Muhammad Mujiya Department of Industrial Engineering, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Suryanti, Suryanti Department of Aquatic Resource, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Ghofar, Abdul Department of Aquatic Resource, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Widyorini, Niniek Department of Aquatic Resource, Diponegoro University, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 SST; Chlorophyll-a; Coastal remote sensing This study investigated the relationship between sea surface temperature (SST) and chlorophyll-a (chl-a) concentration in the North Coast of Semarang, Indonesia. The data were collected using Moderate Resolution Imaging Spectroradiometer Satellite (Aqua-MODIS) chl-a level-3 standard mapped image for a period of five years (2015–2019). Due to cloud coverage, monthly averaged data were used in this study. The result shows that monthly averaged SST ranged from 28.1°C to 31.3 °C. This SST is relatively higher in the transition season (especially in the first transition season) compared to the east and west monsoons season. Chl-a concentration ranged from 0.002 mg/m3 to 1.388 mg/m3. This concentration fluctuates according to the seasonal winds. The maximum concentration of chl-a occurred in the west monsoon season, while the minimum one happened in the second transition season. Using the Pearson correlation coefficient, the correlation is -0.092, which indicates a weak negative correlation between SST and chl-a concentration. This study is expected to give an insight into the potential fishing ground since the chl-a concentration can be such an indicator for the presence of fish. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-10-15 00:00:00 https://ejournal.undip.ac.id/index.php/saintek/article/view/42676 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 3 (2021): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/42676/131529 Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/48346 2025-04-15T07:10:48Z saintek:RSA

nmb a2200000Iu 4500 "240430 2024 eng " 2549-0885 1858-4748 dc Nur, Musriah Universitas Diponegoro Spirulina sp. merupakan mikroalga yang mempunyai pigmen fikosianin dengan kandungan antioksidan tinggi. Jumlah senyawa bioaktif pada fikosianin dipengaruhi oleh proses ekstraksi. Modifikasi metode maserasi dilakukan untuk memperoleh ekstrak yang besar dengan waktu yang singkat. Metode penelitian yang digunakan experimental laboratories menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan (A) maserasi dengan magnetic stirrer 2 jam, (B) maserasi dengan magnetic stirrer 2 jam dilanjutkan ultrasonikasi dan (C) maserasi dingin 24 jam dilanjutkan ultrasonikasi, masing-masing perlakuan 3 kali ulangan percobaan. Analisis data yaitu analisis sidik ragam dan analisis lanjut Beda Nyata Jujur (BNJ). Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan dengan modifikasi ekstraksi fikosianin terbaik. Proses penelitian meliputi ekstraksi yang dimodifikasi, pemurnian (pengendapan ammonium sulfat), pengujian rendemen, kadar, kemurnian, total fenol dan aktivitas antioksidan (DPPH). Perlakuan terbaik dalam memperoleh aktivitas antioksidan tertinggi yaitu modifikasi maserasi dengan magnetic stirrer 2 jam dilanjutkan ultrasonikasi menghasilkan rendemen 4,12 ± 0,065 %, kadar fikosianin 0,206 ± 0,003 mg/mL, tingkat kemurnian 1,8 ± 0,005, total fenol 3,9 ± 0,032mg/mL dan akttivitas antioksidan persen inhibisi 43,19 ± 0,521. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 https://ejournal.undip.ac.id/index.php/saintek/article/view/48346 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11153 2020-04-17T19:23:37Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc PENGARUH ATRAKTOR CUMI TERHADAP HASIL TANGKAPAN ALAT TANGKAP BAGAN TANCAP DI PERAIRAN JEPARA Effect of Squid Atractor for Liftnet Fishing Production at Jepara Seawaters Jayanto, Bogi Budi Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Boesono, Herry Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Fitri, Aristi Dian Purnama Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Asriyanto, Asriyanto Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Kurohman, Faik Program Studi Pemanfaatan Sumberdaya Perikanan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Bagan; atraktor cumi; perairan Jepara   Alat tangkap Bagan digunakan untuk menangkap ikan phototaxis positif. Lampu sebagai alat bantu pengumpul ikan pada bagan dianggap tidak efektif dan efisien karena membutuhkan waktu yang cukup lama untuk mengumpulkan ikan. Apabila masalah tersebut dibiarkan maka dapat berdampak terhadap peningkatan kebutuhan bahan bakar minyak (BBM) sebagai sumber energi lampu. Penambahan atraktor cumi (fish aggregating device) pada bagan merupakan solusi dalam operasi penangkapan. Tujuan penelitian adalah mengetahui dan menganalisis pengaruh penggunaan atraktor cumi terhadap hasil tangkapan Bagan tancap (lift net) diperairan Jepara. Metode yang digunakan pada penelitian ini adalah metode eksperimen dengan pengulangan sebanyak 16 kali. Jumlah hasil tangkapan Bagan tancap yang tanpa menggunakan atraktor cumi adalah Cumi (38,55 kg), Ikan Teri (22,55 kg), Kepiting (2,3 kg) dan Udang (2,03 kg). Sedangkan pada Bagan tancap yang menggunakan atraktor cumi hasil tangkapannya adalah Cumi (46,62 kg), Teri (40,82 kg), Kepiting (4,5 kg) dan Udang (1,2 kg).   Common fishing gear who uses to catch positive phototaxis fish is Lift Net. The lamp was no longer used as the fish aggregating device for lift net because it was ineffective and inefficient to gathered fish target. If the problem still continued it can increased fuels consumption for lamp attractor. Another fish aggregating device “Squid Attractor” was a solution for lift net operation. The objective of this research was to analyze Squid Attractor's effect of Lift Net catch in Jepara seawaters. The Method used in this research is experimental fishing with 16 repetitions. This research showed Lift Nets catch without  Squid Attractors is less than Lift Nets with Squid Attractor's, there is 38.55 kg of squid, 22.55 kg of anchovies, 2.3 kg of crabs and 2.03 of shrimps. Whereas Lift Net with squid attractor got bigger catch such as 46.62 kg of squid, 40.82 kg of anchovie,s 4.5 kg of crabs and 1.2 kg of shrimps.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11153 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/21568 2020-04-17T19:29:43Z saintek:RSA

nmb a2200000Iu 4500 "180816 2018 eng " 2549-0885 1858-4748 dc POLA SEBARAN UNDUR-UNDUR LAUT (Hippidae) BERDASARKAN SALINITAS SUBSTRAT DI PANTAI PAGAK, KEC. NGOMBOL, PURWOREJO, JAWA TENGAH (Distribution Pattern of Mole Crab (Hippidae) Based on The Substrat’s Salinity in Pagak Beach, Ngombol District, Purworejo Regency, Central Java) Nugroho, Setiaji Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suryanti, Suryanti Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rudiyanti, Siti Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Undur-undur laut; salinitas substrat; pola sebaran   Pesisir selatan Jawa, khususnya pantai Pagak, Kabupaten Purworejo merupakan daerah potensial dengan beragam jenis biota yang seringkali dimanfaatkan masyarakat setempat sebagai bahan makanan. Biota tersebut diantaranya adalah yutuk (undur-undur laut) yang bermanfaat secara ekologis maupun ekonomis, namun pemanfaatan belum optimal. Penelitian ini bertujuan untuk mengetahui kelimpahan dan pola sebaran undur-undur laut sebagai dasar pemilihan daerah penangkapan undur-undur laut dan hubungan salinitas substrat dengan kelimpahan undur-undur laut yang ada di pantai Pagak, Kabupaten Purworejo. Penelitian dilakukan pada bulan Januari 2018. Pengambilan sampel biota dan substrat dilakukan pada tiga stasiun dimana setiap stasiun dilakukan tiga kali pengulangan pada hari yang berbeda. Pengambilan sampel menggunakan teknik purposive sampling. Hasil penelitian menunjukkan kelimpahan undur-undur laut (hippidae) di pantai Pagak berkisar 2-4 individu/m2 dengan pola sebaran yang mengelompok. Kelimpahan tersebut cenderung lebih tinggi pada salinitas substrat kisaran 33-35 ppt. Salinitas substrat berpengaruh terhadap kelimpahan undur-undur laut (hippidae) di pantai Pagak dan keduanya mempunyai hubungan yang lemah (r = 0,371).   Southern coast of Java, especially Pagak beach, Purworejo Regency is a potential area with various types of biota that are often used by local people as food. One of the biota is mole crab that is useful ecologically and economically, while the existing utilization is not yet optimal and sustainable. The purpose of this research is to know the abundance and distribution pattern of mole crab as the basis for the selection of good and sustainable fishing areas of mole crab, and the relationship between substrate salinity and the abundance of mole crab at Pagak beach, Purworejo Regency. The study was conducted in January 2018. Samples collection of biota and substrate were conducted at three stations where each station was carried out with three replication on different days. Purposive sampling technique was used to take the sample. The results showed the abundance of mole crab (hippidae) at Pagak beach ranged from 2 to 4 individuals / m2 with a group pattern of distribution. The abundance tends to be higher in the substrate salinity of 33-35 ppt range. Substrate salinity and abundance of mole crab have weak relationships Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-11-12 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21568 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 1 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6770 2025-04-26T12:35:33Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc Isolasi Dan Karakterisasi Bakteri Asam Laktat Dari Usus Udang Penghasil Bakteriosin Sebagai Agen Antibakteria Pada Produk-Produk Hasil Perikanan Romadhon, Romadhon Staf Pengajar Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Subagiyo, Subagiyo Staf Pengajar Program Studi Ilmu Kelautan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Margino, Sebastian Staf Pengajar Program Studi Mikrobiologi Pertanian Fakultas Pertanian Universitas Gajah Mada Lactid Acid bacteria are capable of fermenting sugars or carbohydrates to produce lactic acid in large numbers. The characteristics of lactic acid bacteria in general are cells reacted positively to the Gram  stain, catalase react negatively and do not form spores. And fermentation of glucose would result Iaktat acid. Isolation of lactic acid bacteria carried in the intestines of three species of shrimp that Tiger Shrimp (Penaeus monodon), shrimp Seker (Metapenaopsis sp.), Guts White shrimp (Penaeus merguensis). Selection of bacteriocin -producing lactic acid bacteria were in a qualitative and semi-quantitative (pitting) in MRS medium. Selected isolates were identified by morphological characteristics, biochemical, physiological, A number of 209 isolates were isolated from three species of shrimp. The results of the qualitative selection there were 54 isolates produced bacteriocins. The results of the quantitative selection of 54 isolates produced 24 fine isolates.  From the 24 isolates there are 2 isolates seed SFE-7 (33) and P12A (25). Characteristics of seed isolates had morphological characteristics of spherical shape, cell arrangement tetrad, gram positive, negative motility. While the results of the biochemical approach to gram-negative, catalase negative,  homofermentative (no gas in the fermentation of glucose), can ferment D-Galactose, D-Glucose, D-mannose, D-lactose. Physiological approaches to isolate growth SFE-7 (33) and P12A (25) can be generated that both isolates able to live in the range of 4 ° C to 50 ° C, in the range of pH between 4-10, and able to grow at levels of 5-10% NaCl . Based on these characteristics can be inferred featured isolates was Pediococcus acidilactici   Key words: Lactid Acid Bacteria, intestine of shrimp, Pediococcus acidilactici Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6770 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/32803 2022-06-18T09:12:11Z saintek:RSA

nmb a2200000Iu 4500 "211229 2021 eng " 2549-0885 1858-4748 dc Putri, Didha Andini Fakultas Perikanan dan Ilmu Kelautan Universitas 17 Agustus 1945 Cirebon http://sinta.ristekbrin.go.id/author/?mod=profile&p=stat Sahara, Lisa PLTU adalah pusat pembangkit listrik yang menggunakan tenaga uap sebagai penggerak utama turbin guna menghasilkan tenaga listrik. Sistem ini bekerja dengan menggunakan air sebagai cairan kerja oleh karena itu kebanyakan PLTU di bangun di daerah pesisir. Keberadaan Pembangkit Listrik Tenaga Uap (PLTU) Sumur Adem, Kabupaten Indramayu berada di pesisir dinilai memberikan dampak positif bagi ketersediaan listrik bagi pulau Jawa dan Bali. Tujuan penelitian untuk mengetahui cemaran limbah air panas, kandungan logam berat Pb, Cd, dan Hg terhadap komposisi dan kualitas hasil tangkapan nelayan jaring rampus di peraiaran laut sekitar PLTU Sumur Adem terutama nelayan desa Ujung Gebang kab. Indramayu. Metode penelitian yang digunakan adalah metode deskriptif Komposisi hasil tangkapan ikan selama trip adalah ikan kembung, kuro, colet, dan rajungan. Kandungan logam berat merkuri (Hg) didalam badan air pada perairan PLTU SumurAdem berkisar antara 0,00-0,003 ppm pada 2 stasiun berbeda sedangkan kandungan logam berat timbal Pb berkisar 0,00-0,12 ppm. Sedangkan kadar cadmium tidak di temukan. Salinitas memiliki rata-rata 30%o. Kecerahan masih memiliki kategori optimal mulai dari 1,45-4,35 meter. pH memiliki nilai 6-7 ppt. Suhu pada penelitian saat di lapangan berkisar 27-300C dengan rata-rata suhu permukaan laut bulanan melalui satelit citra aqua MODIS di peroleh 29-330C pada bulan April-Juni 2018. Uji organoleptik mendapatkan hasil pada ikan 1 memiliki nilai uji skor 7.0 pada ikan 2 adalah 7.0 pada ikan 3 diperoleh nilai terbesar yaitu 7,5 pada ikan 4 diperoleh nilai 7.0 dan ikan 5 diperoleh nilai 7.0  Nilai rata-rata Uji sensori secara keseluruhan mendapatkan nilai insang paling kecil dengan rata-rata 4,1-5,2.   The existence of the Sumur Adem Steam Power Plant (PLTU), Indramayu Regency, which is on the coast, agreed to have a positive impact on electricity users in Java and Bali. The PLTU is the center of a power plant that uses steam power as the main driver of the turbine to produce electricity. This system works by using water as a working liquid by most PLTUs built in the coastal area. The aim of the study is to find out the source of hot water, sources of heavy metals Pb, Cd, and Hg for the application and quality of SumurAdem PLTU, especially fishermen in Ujung Gebang village. Indramayu. The research method used is a descriptive method that provides an overview of hot air emissions from fisheries biota. The composition of fish catches by rampet nets during the trip is mackerel, kuro, colet, and crab. The heavy metal content of mercury (Hg) in the water body at the SumurAdem PLTU meeting changed between 0.00-0.003 ppm at 2 different stations containing heavy lead metal (pB) from 0.00 to 0.12 ppm. While cadmium levels were not found. Salinity has an average of 30% o. Brightness still has optimal categories ranging from 1.45-4.35 meters. pH has a value of 6-7 ppt. Temperature in the current study in the field produces 27-300C with an average sea surface temperature through satellite aqua MODIS imagery obtained 29-330C in April-June 2018. Organoleptic test to obtain results in fish 1 with a test score of 7.0 in fish 2 is 7.0, in fish 3 is , 7.5 in fish 4, value 7 is obtained and fish 5 has interval value 7.0 Average value The overall sensory test gets the lowest gill value with an average of 4.1 -5.2. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-12-10 06:13:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/32803 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 4 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6816 2014-05-02T15:45:30Z saintek:RSA

nmb a2200000Iu 4500 "060822 2006 eng " 2549-0885 1858-4748 dc The Productivity of White Shrimp at Intensif Fishpond in Tulang Bawang Lampung Supono, Supono Jurusan Budidaya Perairan Fakultas Pertanian Universitas Lampung Since its introduction on the beginning of 2000’s the cultures of white shrimp (Litopenaus vannamei) in Indonesia highly developed.   This species which is originated from Central  America has successfully triggered shrimp cultures in Indonesia due to its high productivity.  White shrimp has several advantages such as high survival rate (SR), high density, high disease resistance, low feed conversion ratio (FCR) as well as lower feed cost.  The increase of  worldwide market demand caused shrimp farmers to increase their productivity by means of  increasing initial stock. Objective of this experiment was to study the productivity   of  white  shrimp cultured  intensively including yield,  SR,  FCR,  and average  daily gain (ADG). Method of this research was case study of white shrimp culture in Tulang Bawang, The Province of Lampung. Data were taken from 40 of 0.5 ha-shrimp ponds cultured intensively.  Results showed that the average productivity was  7,615 kg per pond with initial stock of    503,735 postlarvae,  SR of 84%, FCR of 1,4 and ADG of 0,15 gram per day.   Key words: productivity of white shrimp, intensive pond Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-02 15:45:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6816 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 2, No 1 (2006): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/41078 2022-10-21T03:40:03Z saintek:RSA

nmb a2200000Iu 4500 "220825 2022 eng " 2549-0885 1858-4748 dc Riyadi, Putut Har Department of Fish Product Technology, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 https://www.researchgate.net/profile/Putut-Riyadi https://orcid.org/0000-0003-2940-4108 Khayati, Nurul Silsilia, Mita Diana Surya, Rachma Asyifa Aryanti, Sesa Sabrina Mulyadi, Shafa Ardellia Pandemi covid-19 menyebabkan krisis utama kesehatan masyarakat. Kondisi lansia yang renta dan biasanya memiliki imunitas tubuh yang lemah dapat berakibat fatal apabila terpapar virus covid-19. Salah satu upaya yang dapat dilakukan agar lansia tercegah dari paparan covid-19 yaitu dengan perlindungan dari dalam tubuh dengan memiliki sistem imunitas yang kuat. Peningkatan imunitas pada lansia yaitu dengan mengonsumsi bahan makanan yang memiliki senyawa antioksidan tinggi, di antaranya adalah alga Halimeda sp dan Sambiloto. Penelitian ini bertujuan untuk mengetahui karakteristik dan potensi senyawa kombinasi ekstrak alga Halimeda sp. dan sambiloto untuk meningkatkan imunitas tubuh menggunakan analisa in silico. Nilai total fenol dan IC50 terbaik didapatkan dari perlakuan 1:1 rasio berat antara ekstrak kasar alga Halimeda sp dengan ekstrak kasar daun sambiloto. Analisa GC-MS dengan kualitas skrinning di atas 85 % mendapatkan 3 (tiga) senyawa yaitu 2- Butoxyethanol (74,12 %), gamma-Butyrolactone (23,72 %) dan Phenol (2,15 %). Senyawa tersebut mempunyai potensi sebagai antioksidan, anti-inflamasi, immunostimulator maupun antivirus berdasarkan PASS server. Semua senyawa mempunyai potensi drug-likeness, penyerapan, distribusi, metabolisme, ekskresi dan toksisitas yang baik dalam tubuh berdasarkan analisa in silico (SwissADME dan Pro Tox II). Hal ini dapat menjadi dasar pengembangan nutraceutical untuk lansia dalam rangka meningkatkan imunitas dan mencegah paparan Covid-19.   The COVID-19 pandemic is causing a significant public health crisis. The elderly who are old and usually have a weak immune system can be fatal if exposed to the Covid-19 virus. One of the efforts that can be done so that the elderly are prevented from exposure to COVID-19 is by protecting them from within the body by having a strong immune system—increasing immunity in the elderly by consuming foods with high antioxidant compounds, including the algae Halimeda sp and Sambiloto. This study aims to determine the characteristics and potency of Halimeda sp. and bitter combination compound to increase body immunity using in silico analysis. The best total phenol and IC50 values were obtained from the 1:1 weight ratio treatment between the crude extract of Halimeda sp algae and the crude extract of bitter leaf. GC-MS analysis with screening quality above 85% obtained 3 (three) compounds, namely 2-Butoxyethanol (74.12%), gamma-Butyrolactone (23.72%), and Phenol (2.15%). These compounds have potential as antioxidants, anti-inflammatory, immunostimulators, and antivirals based on the PASS server. All compounds have good drug-likeness potential, absorption, distribution, metabolism, excretion, and toxicity in the body based on in silico analysis (SwissADME and Pro Tox II). It can be the basis for developing nutraceuticals for the elderly to increase immunity and prevent exposure to Covid-19. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-09-06 11:57:01 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/41078 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 2 (2022): SAINTEK PERIKANAN ind Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/73416 2025-10-03T03:26:09Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc Alamsyah, Majid Politeknik Ahli Usaha Perikanan Sudrajat, Danu Wahyudin, Rudi Alek Parameter kualitas air yang memengaruhi kelangsungan hidup rajungan mencakup suhu, salinitas, pH, dan oksigen terlarut. Kekurangan oksigen dapat menurunkan kinerja metabolisme serta daya tahan tubuh rajungan. Rendahnya kadar oksigen terlarut dapat berakibat fatal bagi rajungan. Penelitian ini bertujuan merancang aerator portabel yang mampu secara efisien dan efektif meningkatkan kadar oksigen terlarut (DO). Penelitian dilaksanakan dari bulan September hingga Desember 2024 di Workshop Kampus Politeknik AUP, Pasar Minggu, Jakarta. Metode yang digunakan adalah engineering research untuk merancang dan menciptakan aerator portabel yang efektif dan efisien dalam meningkatkan kadar DO. Kombinasi aerator terbaik adalah pompa celup dan nozel venturi, yang dapat meningkatkan kadar DO hingga 7,48 mg/L dengan konsumsi listrik yang efisien sebesar 5,7A. Hasil penelitian menunjukkan bahwa aerator portabel memiliki pengaruh signifikan dalam meningkatkan kadar DO (p=0.000 < 0.05). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/73416 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/16820 2020-04-17T19:26:40Z saintek:RSA

nmb a2200000Iu 4500 "171208 2017 eng " 2549-0885 1858-4748 dc DETERMINASI FAKTOR PENTING BERDASARKAN AKTIVITAS MASYARAKAT UNTUK PENGEMBANGAN KAWASAN REHABILITASI HUTAN MANGROVE DI PANTAI KARANGSONG, KABUPATEN INDRAMAYU (Determination of Important Factorson Society Activity for The Development of The Mangrove Forests Rehabilitation Area on The Beach of Karangsong, District of Indramayu) Sa’diyah, Halimatus Program Studi Manajemen Sumberdaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Hendrarto, Boedi Program Studi Manajemen Sumberdaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rudiyanti, Siti Program Studi Manajemen Sumberdaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Mangrove; Aktivitas Masyarakat; Pengembangan Rehabilitasi; Pantai Karangsong   Hutan mangrove di Pantai Karangsong, Kabupaten Indramayu merupakan salah satu hutan mangrove di Pantai Utara Jawa yang telah direhabilitasi. Kawasan rehabilitasi mangrove telah dimanfaatkan oleh masyarakat sebagai lokasi wisata (ekowisata) dan lokasi mata pencaharian. Agar pengembangan selanjutnya dapat berjalan secara tepat, diperlukan perencanaan berdasarkan faktor-faktor penting yang berkaitan dengan pengelolaan hutan tersebut dalam kategori masyarakat yang berbeda, yaitu masyarakat yang berada dalam kawasan hutan mangrove, pengelola kawasan hutan mangrove dan pelaku perikanan. Tujuan dari penelitian ini adalah adalah untuk mengetahui faktor penting untuk pengembangan di kawasan rehabilitasi mangrove berdasarkan aktivitas masyarakat. Penelitian ini dilakukan di kawasan rehabilitasi hutan mangrove Pantai Karangsong, Kabupaten Indramayu pada bulan Agustus – September 2016. Metode yang digunakan adalah studi kasus yang bersifat deskriptif. Variabel penelitian terdiri dari kondisi sosial dan ekonomi masyarakat yaitu pendidikan, umur, pekerjaan dan pendapatan. Pengambilan data dilakukan melalui wawancara menggunakan kuisioner tertutup dan observasi untuk melakukan pengamatan terhadap sumberdaya manusia. Analisis data menggunakan analisis multivariat, yaitu analisis faktor. Hasil penelitian menunjukkan bahwa faktor-faktor penting yang didapatkan untuk kategori masyarakat terdiri dari (1) wisata alam, (2) faktor fungsi dan manfaat, (3) faktor partisipasi masyarakat dalam pengelolaan serta frekuensi pemanfaatan dan faktor (4) pengetahuan. Faktor penting untuk kategori pengelola terdiri dari (1) faktor upaya pengelolaan dan (2) faktor pengaruhnya serta respon masyarakat terhadap pengelolaan. Faktor penting untuk kategori pelaku perikanan terdiri dari (1) faktor pengetahuan, (2) faktor frekuensi pemanfaatan serta fungsi dan (3) faktor perusak ekosistem.        The mangrove forest of Karangsong, Indramayu Regency is one of the mangrove forests on the northern coast of Java that has been rehabilitated. Mangrove rehabilitation area had been utilized by the public as a tourist site (ecotourism) and location of livelihood. In order for future development can be run properly, required planning based on important factors related to the forest management in different communities, i.e., communities that are in the area of mangrove forests, mangrove forest area manager and performer fisheries. The purpose of this research was to know the important factors for development of mangrove rehabilitation area based on the activity of the society. This research was conducted in the mangrove forests rehabilitation area on the beach of Karangsong, District of Indramayu in August – September 2016.This research was a case study. The variables consisted of research social and economic conditions, namely education, ages, employment and income.. Data were collected through interviews using the enclosed questionnaire and observations. Data analysis using multivariate analysis of factors. The results showed that the important factors obtained for category community consisted of (1) nature tourism factors, (2) the factors of function and benefits, (3) the factors of community participation in management as well as the frequency of utilization and (4) factors of knowledge. An important factor for the category manager consisted of (1) factors and management efforts (2) factors influence as well as the response of the community towards the management. An important factor for the category of perpetrators of fisheries consisted of (1) the factors of knowledge, (2) the frequency utilization factor as well as the functions and (3) factors of damaging the ecosystem.    Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-12-08 14:17:30 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/16820 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 1 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/22595 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190727 2019 eng " 2549-0885 1858-4748 dc PENGARUH INTENSITAS PENCAHAYAAN UV TERHADAP PELEPASAN Zooxanthellae PADA KARANG Acropora sp. dalam SKALA LABORATORIUM (The Effect of Ultra Violet Intensity on the Release of Zooxanthellae in Coral Acropora sp. in Laboratory Scale) Nusantara, Dewi Pertiwi Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Purnomo, Pujiono Wahyu Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Supriharyono, Supriharyono Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Acropora sp; Coral Bleaching; Ultra violet; Zooxanthellae Intensitas cahaya merupakan faktor penting terhadap biota karang dalam mendukung pertumbuhan karang, atau sebaliknya dapat menyebabkan bleaching Zooxanthellae dari polyp karang. Penelitian ini bertujuan untuk mengetahui pengaruh intensitas dan lamanya pemaparan pencahayaan UV terhadap laju pelepasan Zooxanthellae pada karang Acropora sp serta recoverynya. Penelitian dilaksanakan pada bulan Desember 2018 – Januari 2019, di Laboratorium Histopatologi BBPBAP Jepara. Spesimen karang Acropora sp. diberikan perlakuan penyinaran secara Fotoperiode dan terus-menerus dengan lampu uv 10 watt, 15 watt dan kondisi normal; dengan ulangan tiga kali. Sampel karang Acropora sp. diambil dari perairan Pulau Panjang Jepara. Pengamatan dilakukan pada interval waktu ke- 0, 12, 24, 36, 48, 60, dan 72 jam. Parameter utama yang diamati adalah laju pelepasan Zooxanthellae dan peubah pendukung yaitu kualitas air. Hasil penelitian menunjukkan bahwa intensitas pencahayaan memberikan pengaruh yang sangat nyata terhadap pelepasan Zooxanthellae, semakin tinggi dan pencahayaan yang terus menerus mengakibatkan bleaching total Zooxanthellae pada Acropora sp. Pelepasan Zooxanthellae pencahayaan UV secara terus-menerus lebih besar dari pada perlakuan secara fotoperiode (1881 sel/jam > 731 sel/jam).   The light intensity is an important factor for polyp coral in supporting coral growth, or otherwise can cause bleaching of coral. The aims of this research are to evaluate the influence of intensity and the length of ultra violet lighting exposure to the rate of the release of Zooxanthellae in Acropora sp. and their recovery. The research was carried out in December 2018 to January 2019, in the Histopatologi Laboratory of BBPBAP Jepara. Coral Acropora sp. Was given continuous and fotoperiode light treatment with ultra violet lights 10 watts, 15 watts and normally condition; with three times replications. Samples of Acropora sp. were taken from Panjang Island Jepara. The periode of observation are 0 , 12 , 24 , 36 , 48 , 60 , and 72 hours. The main parameters observed are the release of Zooxanthellae and water quality as supporting variables. The result showed that the intensity of ultra violet lighting influence significantly on the release of Zooxanthellae. The higher of intensity and continuous lighting caused total bleaching of Zooxanthellae in Acropora sp. The continuous release of Zooxanthellae UV lighting is greater than photoperiod treatment (1881 cells / hour> 731 cells / hour). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22595 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6838 2025-04-26T12:53:40Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc Laju Tangkap dan Analisis Usaha Penangkapan Lobster (Panulirus Sp) Dengan Jaring Lobster (Gillnet Monofilament) di Perairan Kabupaten Kebumen Boesono, Herry Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Anggoro, Sutrisno Staf Pengajar Program Studi Manajemen Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Bambang, Aziz Nur Staf Pengajar Program Studi Pemanfaatan Sumberdaya Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Crayfish (Spiny lobsters, Panulirus sp), including marine fishery commodities which have an important role as an  export  commodity  of the  kind of  crustaceans  (Crustacea)  after  shrimp  Penaeid. Efforts continue  to increase utilization will threaten the sustainability of the resource, if not attempted control measures. The purpose of this study was to determine the level of the catch rate of lobster resources in the District Kebumen and to analyze the financial aspects, the amount of capital, revenue, and profit from lobster fishing effort in waters Kebumen district. The method used is descriptive method, where sampling by using purposive sampling method with a sample of 64 units ship. The research concluded that the value average size of the catch per unit arrests during the period 2004 until 2009 is 1,037914609 kg / trip. Financial analysis of lobster fishing effort using nets lobster fishing gear (gillnet monofilament) got the R / C ratio of lobster fishing effort has a value of  R / C > 1 is 1,61, which means that lobster fishing effort it deserves. The calculation of earnings lobster fishing effort of 1,08, which means that lobster fishing effort carried out efficiently. Payback Period (PP) in lobster fishing effort in lobster fishing gear nets (gillnet monofilament) amounted to 0,92 years or 9 months, which means that fishermen can return all venture capital in less than1 year.   Keywords : Spiny lobster (Panulirus sp), Catch Rate (Gillnet monofilament) Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6838 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21400 2018-12-10T13:25:19Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/79720 2025-12-20T05:19:56Z saintek:RSA

nmb a2200000Iu 4500 "251220 2025 eng " 2549-0885 1858-4748 dc Prasetyo, Dwi Yanuar Budi Agustini, Tri Winarni Anjani, Gemala Riyadi, Putut Har Limbah ikan cakalang seperti kerangka dan hasil trimming mengandung senyawa bioaktif sehingga mempunyai potensi untuk diolah menjadi produk pangan fungsional, salah satunya hidrolisat protein ikan (HPI). Penelitian ini bertujuan untuk mendeskripsikan kandungan gizi dan aktivitas antioksidan dari HPI limbah ikan cakalang. Metode pembuatan HPI menggunakan enzim papain (5%) pada pH 6,4, suhu 61°C, dan lama hidrolisis 228 menit. Penentuan derajat hidrolisat menggunakan nitrogen yang terlarut TCA, kadar air dan abu secara gravimetri, kadar protein secara Kjeldahl, kadar lemak menggunakan Soxhlet. Analisis profil asam amino menggunakan HPLC, serta analisis aktivitas antioksidan menggunakan radical scavenging activity (RSA) dan ferric reducing antioxidant power (FRAP). Nilai derajat hidrolisat produk sebesar 75,43%±0,13, kadar air 14,64±0,19%, protein 30,06±0,002%, lemak 9,62±0,74%, dan abu 7,46±0,83%. Asam amino yang dominan adalah histidin 6,47±0,02, leusin 1,08±0,00, lisin 1,07±0,00, asam glutamat 2,60±0,01, glisin 2,39±0,01, alanin 1,44±0,00, arginin 1,34±0,00, dan asam aspartat 1,18±0,00. Nilai aktivitas antioksidan untuk RSA sebesar 32,34±0,43% dan FRAP sebesar 1,94±0,21 µMol TE/g protein. Hidrolisat yang dihasilkan mempunyai kadar protein 30,06%, histidin 6,47%, asam glutamat 2,60%, glisina 2,39%. Hidrolisat yang dihasilkan dapat dijadikan sebagai bahan tambahan pangan dengan nilai histidina yang dominan. Potensi antioksidan yang dihasilkan tergolong rendah, sehingga perlu dilakukan penelitian lanjutan secara mendalam tentang pengayaan formulasi untuk mencapai kebutuhan gizi yang lengkap serta fungsi biologis lainnya. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/79720 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/21003 2020-04-17T19:28:30Z saintek:RSA

nmb a2200000Iu 4500 "180215 2018 eng " 2549-0885 1858-4748 dc PENGGUNAAN PROBIOTIK GUNA PENINGKATAN PERTUMBUHAN, EFISIENSI PAKAN, TINGKAT KELULUSHIDUPAN DAN NILAI NUTRISI IKAN BANDENG (Chanos chanos) (Probiotic Use for Growth Improvement, Feed Efficiency, Survival Rate and Nutrition Value of Milkfish (Chanos chanos)) Chilmawati, Diana Departemen Akuakultur, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Swastawati, Fronthea Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Wijayanti, Ima Departemen Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ambaryanto, Ambaryanto Departemen Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Cahyono, Bambang Departemen Kimia, Fakultas Sains dan Matematika, Universitas Diponegoro ProbioProbiotik; pertumbuhan; efisiensi pakan; nilai nutrisi; ikan bandeng (Chanos-chanos) Budidaya bandeng sebagai bahan baku berbagai olahan perlu didukung dengan teknologi yang intensif. Peningkatan kualitas nutrisi bandeng diperlukan untuk memperoleh bahan baku yang tidak hanya banyak tetapi juga bernutrisi. Penambahan probiotik ke dalam pakan bandeng dapat meningkatkan efisiensi pakan agar pakan lebih mudah dicerna dan enzim dapat bekerja lebih efektif. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan probiotik terhadap pertumbuhan, efisiensi pakan, tingkat kelulushidupan dan nilai nutrisi ikan bandeng. Bahan yang digunakan adalah ikan bandeng dengan berat rata-rata 102±2,58 g, pakan bandeng komersil dengan kandungan protein 30% dan probiotik dengan komposisi jamur Saccharomyces cerevisiae, Aspergillus oryzae, bakteri Lactobacillus acidophilus, Bacillus subtilis, Rhodopseudomonas, Actinomycetes dan Nitrobacter. Penelitian dilakukan menggunakan metode eksperimental dengan Rancangan Acak Kelompok dengan dua perlakuan dan 5 kali ulangan. Analisis data menggunakan uji t untuk membandingkan budidaya ikan bandeng perlakuan A yaitu tanpa penggunaan probiotik dalam pakan dan perlakuan B yaitu dengan penggunaan probiotik dalam pakan. Hasil uji t menunjukkan penggunaan probiotik pada pakan berpengaruh nyata (P<0,05) pada pertumbuhan, efisiensi pakan dan nilai nutrisi namun tidak berpengaruh nyata (P>0,05) pada tingkat kelulushidupan ikan bandeng. Penggunaan probiotik pada pakan bandeng memberikan nilai RGR (1.958±0.02%/hari), nilai EPP (78.333±0.745%), kandungan protein (25.794±0.600%) lebih tinggi dan FCR (1.321±0.030) yang lebih baik dari perlakuan tanpa penggunaan probiotik dalam pakan bandeng.   Milkfish culture as main raw materia for various processed food needs intensive technology support. Improvement in milkfish nutrition quality is necessary to obtain many raw nutritious materials.The addition of probiotics to milkfish feed is able to improve feed efficiency. Thus, the feed is easier to digest and the enzymes can work more effectively. This study aims to find out the effect of probiotic use on the growth, feed efficiency, survival rate and nutritional value of milkfish. The materials used in thi study were milkfish with an average weight of 102 ± 2.58 g, commercial milkfish feed with 30% protein content and probiotics composed of fungus Saccharomyces cerevisiae, Aspergillus oryzae, Lactobacillus acidophilus, Bacillus subtilis, Rhodopseudomonas, Actinomycetes and Nitrobacter. The study was conducted using an experimental method with a randomized block design with two treatments and 5 repetitions. Data analysis was conducted using T test to compare milkfish culture treatment A,i.e. without the use of probiotics in feed and treatment B by using probiotics in feed. The results of the t test showed that the use of probiotics in feed had a significant effect (P <0.05) on growth, feed efficiency and nutritional value but had no significant effect (P> 0.05) on the level of milkfish survival capability. The use of probiotics in milkfish feed resulted in RGR value (1.958 ± 0.02% / day), EPP value (78.333 ± 0.745%),higher protein content (25.794 ± 0.600%)  and FCR (1.321 ± 0.030) which was better than the treatment without the us of probiotics in milkfish feed. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/21003 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/26643 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191230 2019 eng " 2549-0885 1858-4748 dc MAPPING OF SEAGRASS COVER ON CHLOROPHYLL-A, NITRATES AND PHOSPHATE IN THE TELUK AWUR, JEPARA Febrianto, Sigit Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro https://scholar.google.co.id/scholar?hl=en&as_sdt=0%2C5&q=sigit+febrianto&btnG= Latifah, Nurul Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Endarwati, Hadi Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Zainuri, Muhammad Departemen Oseanografi, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suryanti, Suryanti Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro chlorophyll-a; nitrate; phosphate;, seagrass bed; spatial Teluk Awur Beach Jepara is one of the waters in Central Java that has a seagrass ecosystem. Seagrass role is the ability to support the life of another biota closely related to the fertility of the waters indicated by the content of chlorophyll-a, nitrate, and phosphate. The purpose of this study is to know the relationship between chlorophyll-a, nitrate, and phosphate to seagrass land cover as well as the variables which have major contributions. The method of study used is descriptive with four station sampling and  seagrass with a line transect of 50 m, and a 1x1 m² transect Quadrant divided into 16 sub plots measuring 25 x 25 cm² a spatial approach and multiple regression statistics. The results showed that there was a positive correlation between seagrass land cover to the concentration of chlorophyll-a and nitrate but less correlated phosphate. The highest chlorophyll-a concentrations of 0.381 mg/m3, seagrass land cover 40-60%, seagrass density 314 individual/m2, nitrate 1.141 mg/l and phosphate 0.54 mg/l. The lowest chlorophyll-a concentration ranges from 0.32-0.35 mg/m3, seagrass cover of 0-10%, seagrass density 3-12 individual/m2, nitrate 0.96 mg/l and phosphate 0, 21mg/L. This research shows that there is a strong link between seagrass land cover Concentrations of chlorophyll-a, nitrates and less influential to phosphates. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/26643 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/7689 2015-06-29T00:51:27Z saintek:RSA

nmb a2200000Iu 4500 "130220 2013 eng " 2549-0885 1858-4748 dc DAYA TANGKAP BUBU LIPAT YANG DIOPERASIKAN OLEH NELAYAN TRADISIONAL DI DESA MAYANGAN KABUPATEN SUBANG (Catchability of Collapsible Pot Operated by Traditional Fishermen in Mayangan Village, Subang Regency) Iskandar, Dahri Bagian Teknologi Alat Penangkap Ikan Departemen Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan dan Ilmu Kelautan Institut Pertanian Bogor Penelitian ini bertujuan untuk menentukan daya tangkap bubu lipat yang dioperasikan oleh nelayan  tradisional di perairan Desa Mayangan Kabupaten Subang. Pengoperasian bubu lipat dilakukan sebanyak 10 trip penangkapan. Hasil yang diperoleh menunjukan bahwa rata-rata hasil tangkapan yang diperoleh pada setiap trip penangkapan adalah 27 ekor. Total hasil tangkapan terendah terjadi pada stasiun ke 4 yaitu sebanyak 33 ekor atau setara dengan 12.64 % dari total hasil tangkapan. Adapun jumlah hasil tangkapan tertinggi terjadi pada stasiun ke 5 dengan  jumlah  sebanyak 56 ekor atau setara dengan 21.46 % dari total hasil tangkapan.  Jumlah hasil tangkapan kepiting bakau tertinggi terjadi pada stasiun ke 5 dengan jumlah sebanyak 28 ekor atau setara dengan 29.79 % dari total hasil tangkapan kepiting bakau. Rata-rata hasil tangkapan kepiting bakau  yang diperoleh pada setiap stasiun adalah 16 ekor. Kata Kunci : Bubu lipat, daya tangkap, kepiting bakau, hasil tangkapan, nelayan   The objective of this research was to determine catchability of collapsible pot operated by traditional fishermen in Mayangan village waters, Subang regency. Fishing operation of collapsible pot was carried out in 10 times of fishing trips.  Result of research indicated that average of catch pot each fishing was 27 fishes.  The lowest of  total catch was obtained in the 4th station with total catch of 33 fishes or similar with 12.64% of total catch while the highest of total catch  was obtained in the 5th station with total catch of 56 fishes or similar with 21.46% of total catch. The highest catch of mud crabs was obtained in 5th station with total number of 28 crabs or similar with 29.79% of total catch of mud crabs. Average catch of  mud crab each station was 16 crabs Key words: Collapsible pot, catch, mud crab,catchability Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 13:58:39 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/7689 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 2 (2013): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/377 2014-05-19T10:45:55Z saintek:RSA

nmb a2200000Iu 4500 "110719 2011 eng " 2549-0885 1858-4748 dc KONDISI PENCEMARAN PERAIRAN SUNGAI BABON SEMARANG Suparjo, Mutofa Niti Fakultas Perikanan dan Ilmu Kelautan ABSTRAK Tujuan penelitian ini adalah untuk mengetahui mutu kualitas perairan di Sungai Babon, Semarang. Penelitian ini dilaksanakan pada Bulan Agustus 2008 dengan lokasi pengambilan sampel di Sungai Babon. Metode yang digunakan dalam penelitian ini adalah metode survey. Analisis data hasil penelitian yang didukung dengan data tahunan dari BAPEDALDA Semarang dengan menggunakan metode Storet. Parameter kualitas air yang diukur selama penelitian (Kedalaman : 31-90 cm ; Kecerahan : 22-41 cm ; Kecepatan arus : 0,007-0,167 m/s ; Suhu air : 28,7-31oC ; pH : 7,1-8,7 ; Oksigen Terlarut : 5,5-6,5 mg/l ; salinitas 0-32‰ ) nilai tersebut menunjukkan dalam keadaan yang masih dapat ditoleransi untuk kehidupan organisme. Sedangkan untuk parameter (BOD5 : 6-70 mg/l ; COD : 30-295 mg/l ; H2S : 0,0022-0,0187 mg/l) menunjukkan bahwa nilai tersebut telah melampaui ambang batas baku mutu kelas II PP. No.82 tahun 2001 sehingga dapat mencemari lingkungan. Pada penelitian ini dilakukan penilaian mutu kualitas perairan di Sungai Babon, Semarang. Dari hasil analisis dengan menggunakan metode Storet menunjukkan bahwa kualitas air di stasiun 1 memiliki nilai -32, stasiun 2 memiliki nilai -38 dan stasiun 3 memilki nilai -38. Ketiga stasiun memiliki mutu kualitas perairan yang buruk karena memiliki nilai ≥31. Kata kunci : Mutu air, metode Storet, Sungai Babon ABSTRACT The aim of this study was to determine water quality of Babon river at Semarang city. This study conducted in August 2008 located in Babon river. Direct samples survey method was used in this study. Data analyzed by Storet method with complement of yearly data from BAPEDALDA Semarang. The result of the study shows that water condition was: depth 31-90 cm; clearly 22-41 cm; wave speed 0,007-0,167 m/s; water temperature 28,7-31oC; pH 7,1-8,7; Disolved Oxygen 5,5-6,5 mg/l and salinity 0-320-32‰. From the data we know that watery condition was tolerated enough for organism living. Parameter BOD5 7-66 mg/l, COD 35-276 mg/l and H2S 0,0022-0,0187 mg/l values shows respectively. Its mean the value was higher than the standart which is allowed of good environtmental according to PP No. 82 year 2001 and it is indicated that the value could wasting the watery environtmental area.In this research, it will be carried out an evaluation of water quality in Babon river, Semarang. The analysis result of water Babon used Storet method from Environmental Protection Agency (EPA). From the analysis result that use Storet method showed that water quality in stasiun 1had a value -32, stasiun 2 had a value -38 and stasiun 3 had a value -38. The three of stasiun had a bad water quality because had a value ≥31. Keyword : Water quality, Storet method, Babon river. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/377 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/40779 2023-02-10T03:38:44Z saintek:RSA

nmb a2200000Iu 4500 "221028 2022 eng " 2549-0885 1858-4748 dc THE EFFECT OF STORAGE TIME ON THE QUALITY OF ARTIFICIAL FEED FOR FEMALE COBIA FISH (Rachycentron canadum) Asmanik, Asmanik Research Center for Marine and Land Bioindustry, National Research and Innovation Agency Murtadho, Akhmad Fisheries Research Center, National Research and Innovation Agency Brite, Margie Research Center for Marine and Land Bioindustry, National Research and Innovation Agency Riyadi, Putut Har Department of Fish Product Technology, Universitas Diponegoro https://www.researchgate.net/profile/Putut-Riyadi https://orcid.org/0000-0003-2940-4108 Quality; artificial feed; time; storage The purpose of the study was to determine the quality of artificial feed after the storage process. There are two types of artificial feed: P1 feed (n-3 HUFA content 2.82% dry weight) and P2 feed (n-3 HUFA content 2.76% dry weight). The formula feed was made of isoprotein (43%), isolipid (16%), and isoenergy (417 kcal/100 g). Parameters observed were physical changes (color, odor, texture, broken pieces, fungal infestation, and overall quality); results of proximate and fatty acid analysis after two months of closed storage in plastic bags at 17 °C. Observation of physical parameters showed that the physical condition of both types of feed was good, but P1 feed is more crumbly than P2 feed. The results of proximate analysis of the P1 feed showed no significant difference during storage. The proximate analysis of P2 feed showed no significant difference in ash content, fat content, energy from fat, and total energy during storage; that experienced significant changes were water, protein, and carbohydrate content. The water and carbohydrate content increased on the 1st and 2nd months, while the protein content decreased in the 1st and 2nd months. The analysis results of fatty acids DHA, EPA, AA, and n-3 HUFA did not show significant change during the storage of the two types of feed. The conclusion was that P1 feed had more stable chemical properties than P2 feed after two months of storage. However, the P1 feed was physically more crumbly than the P2 feed. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-11-24 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/40779 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 3 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/25277 2020-11-13T16:14:25Z saintek:RSA

nmb a2200000Iu 4500 "200806 2020 eng " 2549-0885 1858-4748 dc EVALUASI DIET KOLIN DAN METIONIN TERHADAP PERTUMBUHAN DAN EFISIENSI PAKAN IKAN MAS (Cyprinus carpio) (Evaluation of Dietary Choline and Methionine on The Growth Performance and Feed Indices of Common Carp (Cyprinus carpio)) Suci, Rahma Laboratorium Fisiologi, perkembangan, dan Molekuler hewan, Jurusan Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Mulawarman, Samarinda, Kalimantan Timur, Indonesia Nugroho, Rudy Agung Laboratorium Fisiologi, perkembangan, dan Molekuler hewan, Jurusan Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Mulawarman, Samarinda, Kalimantan Timur, Indonesia http://sinta2.ristekdikti.go.id/authors/detail?id=5973879&view=overview http://orcid.org/0000-0001-9006-7329 Aryani, Retno Laboratorium Fisiologi, perkembangan, dan Molekuler hewan, Jurusan Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Mulawarman, Samarinda, Kalimantan Timur, Indonesia Manurung, Hetty Jurusan Biologi, FMIPA, Universitas Mulawarman Rudianto, Rudianto Laboratorium Fisiologi, perkembangan, dan Molekuler hewan, Jurusan Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Mulawarman, Samarinda, Kalimantan Timur, Indonesia Cyprinus carpio; kolin; metionin; pertumbuhan; efisiensi pakan Kolin dan metionin bermanfaat dalam imunitas, pertumbuhan, deposisi lipid dan protein pada ikan. Penambahan kolin dan metionin dalam pakan ikan mas (Cyprinus carpio) perlu dilakukan untuk meningkatkan pertumbuhan dan efisiensi pakan. Penelitian ini bertujuan untuk mengevaluasi pengaruh penambahan kolin dan metionin pada pakan terhadap pertumbuhan dan efektivitas pakan ikan mas. Sejumlah 1.350 ekor ikan (umur ±2 bulan, berat awal 25,29±0,10 gram, panjang 10,5±11,2 cm) dibagi menjadi tujuh kelompok perlakuan dan satu kelompok kontrol dengan masing-masing tiga pengulangan. Kelompok kontrol dan perlakuan diberi diet basal (5 kali sehari) dengan penambahan persentase (%) rasio kolin dan metionin berbeda. Kelompok D1 = tanpa kolin dan metionin (kontrol); D2-8 adalah kelompok ikan dengan penambahan formulasi kombinasi kolin dan metionin sebagai berikut: D2 (0%:0,15%), D3 (0,04%:0%), D4 (0,04%:0,15%), D5 (0,08%:0%), D6 (0,08%: 0,15%), D7 (0,12%:0%), D8 (0,12%: 0,15%) selama 12 minggu. Parameter pertumbuhan yaitu: berat akhir, pertambahan berat badan, pertambahan berat harian, laju pertumbuhan spesifik, rasio konversi pakan, efisiensi pakan, laju efisiensi protein, dan kelangsungan hidup ikan mas yang diukur pada akhir minggu ke 12. Hasil penelitian, menunjukkan bahwa nilai tertinggi berat akhir, pertambahan berat badan, pertambahan berat harian, laju pertumbuhan spesifik, rasio efisiensi protein, dan efisiensi pakan didapat pada ikan mas kelompok D8. Sementara rasio konversi pakan ikan kelompok D3 menunjukkan hasil yang lebih tinggi dari ikan kelompok lainnya. Kesimpulan penelitian adalah diet D8 dapat diterapkan dan bermanfaat untuk meningkatkan pertumbuhan ikan. Sementara diet D3 bermanfaat untuk menaikkan efisiensi pakan dan rasio konversi pakan ikan mas.   Choline and methionine are beneficial in immunity, growth, lipid and protein deposition in fish. A supplementation of choline and methionine in Carp fish (Cyprinus carpio) feed should be performed to improve growth and feed efficiency. This study evaluated the importance of choline and methionine supplementation on the growth and feed efficiency. In total 1,350 fish (± 2 months old, initial weight 25.29 ± 0.10 g, length 10.5 ± 11.2 cm) were randomly divided into triplicates seven treatment groups and one control group. For 12 weeks, the control and treatment fish groups were given a basal diet (5 times per day) with a different percentage (%) ratio of choline and methionine. Namely: D1 = without choline and methionine (control); D2-8 are groups of fish with a combination of formulation and methionine as follows: D2 (0%: 0.15%), D3 (0.04%: 0%), D4 (0.04%: 0.15%), D5 (0.08%: 0%), D6 (0.08%: 0.15%), D7 (0.12%: 0%), D8 (0.12%: 0.15%). Growth parameters such as: final weight (FW), body weight gain (BWG), daily weight gain (DWG), specific growth rate (SGR), feed conversion ratio (FCR), feed efficiency (FE), protein efficiency rate (PER), and survival rate were determined at the end of the week 12. The results showed that optimum FW, BWG, DWG, SGR, PER, and FE were obtained in D8 group. Meanwhile, the FCR of D3 group was higher than other groups. In conclusion, D8 diet is beneficial to to increase fish growth, while D3 diet is useful for increasing FE and FCR of carp.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-17 11:12:41 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/25277 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 2 (2020): SAINTEK PERIKANAN eng Copyright (c) 2020 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8112 2015-06-29T15:03:12Z saintek:RSA

nmb a2200000Iu 4500 "130825 2013 eng " 2549-0885 1858-4748 dc KAJIAN POTENSI PEMANFAATAN SUMBERDAYA UDANG (Penaeus spp) DAN UPAYA PENGELOLAANNYA DI PERAIRAN PANTAI KABUPATEN BATANG (The Study of Potential Shrimp (Penaeus spp) Resource Utilization and the Management Effort in Batang Regency Coastal Waters) Sulistyowati, Sulistyowati Doktoral Magister Manajemen Sumberdaya Pantai FPIK-UNDIP Zainuri, Muhammad Fakultas Perikanan dan Ilmu Kelautan UNDIP Semarang Bambang, Aziz Nur Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Semarang Kajian potensi dan pemanfaatan udang (Penaeus spp) di perairan pantai Kabupaten Batang dilakukan berdasarkan analisis terhadap data hasil tangkapan dan trip penangkapan udang selama kurun waktu 2002-2011. Analisis catch per unit effort (CPUE) digunakan untuk menduga potensi lestari (MSY) udang dan upaya penangkapan yang optimum. Analisis juga dilakukan untuk mengetahui keadaan musim penangkapan berdasarkan data kuartalan. Nilai MSY dan upaya penangkapan udang di  Kabupaten Batang masing –masing adalah 29.032 kg dan 18.262 trip tahun-1. Musim penangkapan udang tertinggi terjadi pada kuartal I yaitu pada bulan Januari-Maret dan semakin menurun hingga kuartal III (Juli-September). Diketahui bahwa status perikanan udang pada tahun 2005-2006 dan tahun 2010-2011 telah menunjukan overfishing, sehingga diperlukan upaya pengaturan. Pengaturan lebih ditujukan pada pembatasan hasil tangkapan dan upaya penangkapannya dengan jaring arad, yaitu 80% dari potensi lestarinya. Kata kunci : Analisis CPUE, udang (Penaeus spp), MSY, perairan pantai Kabupaten Batang. The study of potential and shrimp resource utilization (Penaeus spp) in Batang Regency coastal waters made based on analysis of the catching data and shrimp fishing trip during the period 2002-2011. Analysis of the catch per unit effort (CPUE) is used to predict the long-lasting potential (MSY) shrimp and optimum fishing effort. The analysis were also conducted to determine the state of fishing season based on quarterly data. MSY value and shrimp fishing effort in Batang respectively 29,032 kg and 18,262 trip. The highest shrimp fishing season was in the first quarter that is in January-March and decreased in the third quarter (July-September). It is known that the status of the shrimp fishery in 2005-2006 and in 2010-2011 have shown overfishing, so the effort settings required. The setting is more aimed at limiting the catch and the catch effort with arad net, ie 80% of the long-lasting potential. Key words: Analysis of CPUE, shrimp (Penaeus spp), MSY, Batang Regency coastal waters Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-01-20 09:07:21 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8112 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 9, No 1 (2013): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/371 2014-05-19T10:45:55Z saintek:RSA

nmb a2200000Iu 4500 "110719 2011 eng " 2549-0885 1858-4748 dc DAMPAK SOSIAL EKONOMI PEMBANGUNAN DAN PENGEMBANGAN PELABUHAN PERIKANAN NUSANTARA (PPN) PENGAMBENGAN JEMBRANA BALI Suherman, Agus Dault, Adhyaksa Pascasarjana MSDPI-UNDIP ABSTRAK Pelabuhan Perikanan Nusantara (PPN) Pengambengan menampung kegiatan masyarakat perikanan, terutama terhadap aspek produksi, pengolahan dan pemasaran, serta pembinaan masyarakat nelayan. Pelayanan terhadap kapal perikanan sebagai sarana produksi meliputi: penyediaan basis (home base) bagi armada penangkapan, menjamin kelancaran bongkar ikan hasil tangkapan, menyediakan suplai logistik bagi kapal-kapal ikan seperti air tawar, bahan bakar minyak, es untuk perbekalan dan lain-lain. Sedangkan pelayanan terhadap nelayan sebagai unsur tenaga produksi meliputi: aspek pengolahan, aspek pemasaran dan aspek pembinaan masyarakat nelayan. Penelitian ini bertujuan untuk menganalisis dampak sosial ekonomi dari pembangunan dan pengembangan PPN Pengambengan. Metode penelitian adalah metode survey deskriptif yang bersifat studi kasus. Hasil penelitian menunjukkan bahwa keberadaan fasilitas PPN Pengambengan memberikan manfaat yang besar. PPN Pengambengan tidak mengharapkan keuntungan dari manfaat yang diterima. Hal ini dikarenakan tujuan dari PPN Pengambengan yaitu sebagai support system dalam meningkatkan kondisi sosial ekonomi dan mensejahterakan kehidupan para nelayan. Kata kunci : PPN Pengambengan, Fasilitas, Sosial Ekonomi ABSTRACT Pengambengan Nusantara Fishing Port (NFP) provide fisheries society activities, especially production aspect, processing and marketing, and fishermen society guidance. The services provide for fishing boats as a production infrastructure consists of providing a home base for fishing vessels, ensures successful fish loading, logistic supply such as fresh water, fuel, ice for the fishing vessels. Whereas services provide for the fishermen consists of processing aspect, marketing and guidance. This research was done to analyse the social economic aspect of the construction and development of Pengambengan NFP. A study case descriptive survey method was applied. The results showed that the present of Pengambengan NFP facilities gave great beneficial. Pengambengan NFP does no profit oriented from the facilities that are provided since the objective of Pengambengan NFP is as a supporting system to improve the socialeconomic condition and the welfare of the fishermen Key words: Pengambengan NFP, facilities, social economic Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2011-07-19 06:30:33 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/371 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 4, No 2 (2009): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/44934 2025-04-15T07:43:43Z saintek:RSA

nmb a2200000Iu 4500 "230426 2023 eng " 2549-0885 1858-4748 dc Kantun, I Wayan Institut Teknologi dan Bisnis Maritim Balik Diwa. Jalan Perintis Kemerdekaan VIII No.8 Makassar Sulawesi Selatan http://itbm-balikdiwa.ac.id https://orcid.org/0000-0003-0075-1421 Darius, Darius Kepiting bakau merupakan komoditas perikanan yang bernilai ekonomis tinggi dan dimanfaatkan secara intensif untuk memenuhi permintaan konsumen. Upaya untuk memenuhi kebutuhan konsumen, dilakukan pemanfaatan dengan beragam metode penangkapan untuk memperoleh hasil tangkapan kepiting bakau. Penelitian ini bertujuan menganalisis perbandingan hasil tangkapan berdasarkan jenis umpan dan waktu penangkapan. Penelitian di laksanakan pada bulan Maret sampai Mei 2018 diperairan Distrik Babo Teluk Bintuni. Penelitian  menggunakan metode penangkapan percobaan dengan umpan sirip hiu dan ikan sembilang serta waktu penangkapan pagi dan malam hari. Hasil penelitian menunjukkan hasil tangkapan berjumlah 180 ekor dengan 98 ekor (54,44%) ditangkap menggunakan umpan ikan sembilang dan 82 ekor (45,56%) memakai umpan ikan hiu. Hasil tangkapan kepiting bakau berdasarkan waktu penangkapan malam dan pagi hari masing-masing 107 ekor (59,44% ) dan 73 ekor (40,56%). Sebaran ukuran lebar karapas berkisar 60-197 mm (132,34 ± 38,51 mm) dan bobot berkisar 286,34-989,42 g (684,79 ± 207,78 g). Sebaran ukuran lebar karapas dengan umpan ikan sembilang berkisar 60-197 mm (128,45 ± 36,76) dan bobot berkisar 286,34-983,75 g (662,93 ± 198,35 g), umpan ikan hiu berkisar 60-197 mm (136,99 ± 40,23 mm) dan bobot berkisar 286,34-989,42 g (710,93 ± 216,84 g). Sebaran ukuran lebar karapas yang ditangkap pagi hari berkisar 65-197 mm (130,29 ± 37,67) dengan bobot berkisar 2309,02-983,75 g (671,23 ± 201,87 g), waktu malam hari berkisar 60-197 mm (133,74 ± 39,19 mm) dan bobot berkisar 286,34-989,42 g (694,05 ± 212,15 g). Hasil tangkapan kepiting bakau dengan sebaran ukuran lebar karapas dan bobot terbesar tertangkap dengan umpan ikan hiu dan ditangkap pada malam hari. Kepiting bakau dominan tertangkap dengan menggunakan umpan ikan hiu dan hasil tangkapan terbanyak diperoleh  pada malam hari.   Mud crab is a fishery commodity that has high economic value and is used intensively to meet consumer demand. Efforts to meet consumer needs are carried out using various fishing methods to obtain mud crab catches. This study aims to analyze the comparison of catches based on the type of bait and fishing time. The research was carried out from March to May 2018 in the waters of the Babo District, Bintuni Bay. The study used experimental fishing methods with shark and sembilang bait as well as fishing time in the morning and night day. The results showed that the catch amounted to 180 individu with 98 individu (54,44%) caught using sembilang fish bait and 82 individu (45,56%) using shark bait. The catch of mud crabs based on the time of fishing at night and morning was 107 individu (59,44%) and 73 individu (40,56%) respectively. The size distribution of carapace width ranged from 60-197 mm (132,34 ± 38,51 mm) and weight ranged from 286,34-989,42 g (684,79 ± 207,78 g). The size distribution of carapace width with sembilang fish bait ranged from 60-197 mm (128,45 ± 36,76) and weight ranged from 286,34-983,75 g (662,93 ± 198,35 g), shark bait ranged from 60- 197 mm (136,99 ± 40,23 mm) and the weight ranged from 286,34 to 989,42 g (710,93 ± 216,84 g). The size distribution of carapace width caught in the morning ranged from 65-197 mm (130,29 ± 37,67) with a weight ranging from 2309,02-983,75 g (671,23 ± 201,87 g), at night it was 60- 197 mm (133,74 ± 39,19 mm) and weight ranged from 286,34 to 989,42 g (694,05 ± 212,15 g). The dominant mud crabs are caught using shark bait and the highest catches are obtained at night Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-05-26 01:51:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/44934 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 1 (2023): SAINTEK PERIKANAN ind Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/37160 2021-04-21T11:21:17Z saintek:RSA

nmb a2200000Iu 4500 "201031 2020 eng " 2549-0885 1858-4748 dc Analysis Of Changes In Mangrove Area In The North Coast Of Central Java Province Indonesia Nugroho, Patric Erico Rakandika Departement of Aquatic Resources, Universitas Diponegoro Suryanti, Suryanti Departement of Aquatic Resources, Universitas Diponegoro Purnomo, Pujiono Wahyu Departement of Aquatic Resources, Universitas Diponegoro Mangrove Area; North Coast; Central Java Mangrove is one of the coastal ecosystems which has an important role as the main ecosystem to support life activities in coastal areas and plays an important role in maintaining the balance of the biological cycle in the environment. However, on the other hand, mangrove forests are very vulnerable to environmental influences, both from nature and from humans. In relation to mangrove forest management, information is very much needed regarding the wide area cover from time to time. The research objectives were to analyze the condition of mangrove forests, to analyze changes in mangrove area, and to provide input on mangrove ecosystem management. The mangrove forest in Pemalang Regency had a degradation of 26.89 ha, Semarang City had a gradation of 42.97 ha, and in Demak District there was a gradation of 58.55 ha. Mangrove density was in the range of 503-726 ind/ha. Mangrove sediment texture was dominated by sandy loam. Temperature was 29-31°C. Water salinity was 29-30 ‰ and sediment salinity was 27-28‰. Water pH was 8 and sediment pH was 6. The PCA analysis results showed that the supporting variables for mangrove forests consisted of four groups. The first group is mangrove density, temperature and water pH. The second group is soil salinity, clay form, and water salinity. The third group is the dust and sand fraction. The fourth group is soil pH. Based on the results of PCA analysis, mangrove forest density has a positive correlation with water temperature and negatively correlated with water pH. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-11-23 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/37160 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 16, No 3 (2020): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/37160/112191 https://ejournal.undip.ac.id/index.php/saintek/article/download/37160/112194 https://ejournal.undip.ac.id/index.php/saintek/article/download/37160/112195 https://ejournal.undip.ac.id/index.php/saintek/article/download/37160/112196 https://ejournal.undip.ac.id/index.php/saintek/article/download/37160/112197 https://ejournal.undip.ac.id/index.php/saintek/article/download/37160/112198 https://ejournal.undip.ac.id/index.php/saintek/article/download/37160/112199 https://ejournal.undip.ac.id/index.php/saintek/article/download/37160/112200 Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/8326 2015-03-14T06:27:17Z saintek:RSA

nmb a2200000Iu 4500 "140829 2014 eng " 2549-0885 1858-4748 dc Field experiment of polyculture technology of tiger shrimp (P. monodon Farb.) Milkfish (Chanos chanos Forskal), and Seaweed (Gracilaria verrucosa) in Brackhiswater water pond of Borimasunggu village, Maros regency Mangampa, Markus Balai Penelitian dan Pengembangan Budidaya Air Payau Jl. Makmur Dg. Sitakka No. 29, Maros, Sulawesi Selatan Burhanuddin, Burhanuddin Balai Penelitian dan Pengembangan Budidaya Air Payau Jl. Makmur Dg. Sitakka No. 29, Maros, Sulawesi Selatan Polyculture technology is the culture of various species of fish which has similar trophic level, where the organisms are perform biological and chemical processes in synergy with several advantages in the ecosystem. Field experiment was done in the brackhiswater ponds Borimasunggu vilage Maros regency, South Sulawesi, using 3 ponds of 1.0 ha pond-1. The research was aimed to apply the polyculture technology of tiger shrimp, fish and seaweed. Tiger shrimp yuvenile and milkfish yuvenile with the average weight of 0.056 ± 0.006 g and 75 ± 2.1 g. the seaweed is Gracillaria verrucosa. Stocking of seaweed performed 30 days earlier than tiger shrimp yuvenile and fish. Stocking density each pond are 1,500 kg sea weed + 30,000 tiger shrimps + 1,500 yuvenile of milk fish (A) and 1,500 kg sea weed+ 30,000 kg of tiger shrimps yuvenile (B); and (C) = 1,500 milkfish + 1,500 kg of seaweed with time of culture for 90 days. The results obtained in treatment A showed that daily growth rate of tiger shrimp: 5.66%; milkfish : 1.84% and seaweed : 2.3%. Production of tiger shrimp 165 k, milk fish : 417 kg, and seaweed 4285.7 kg dry-wet. Daily growth rate in pond B is tiger prawn: 5.21%; seaweed : 2.2%), production of tiger shrimp: 127 kg and seaweed 3,985.7 kg. While the daily growth rate for pond C is milk fish:1.91% and seaweed : 1.08% with a production of 450 kg and 3,085 kg dry-wet. Analysis economic showed that total production and income of pond C has higher revenues followed by B and A. Keywords : Policulture technology, tiger shrimp, milkfish, seaweed, daily growth rate, production. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-03-14 06:27:17 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/8326 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 1 (2014): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2071 2014-04-25T17:01:16Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc Bycatch Analyses of Pot Operated In Coral Reef Waters of Seribu Islands Iskandar, Dahri Departemen Pemanfaatan Sumberdaya Perikanan, FPIK IPB JL. Agatis Kampus IPB Dramaga, Bogor 16680 The objective of this research was to investigate bycatch of pot operated by fishermen in Seribu Island waters.  The research was carried out by common pot using by fishermen for catching  reef fishes. Pots used in this experiment was made from bamboo with size of length x width x depth : 66 cm x 51 cm x 20 cm. During experiment bamboo pots were operated in single pot setting in depth range of 0,5 m to 3 m. Result of the experiment indicated that catch of pot per trip ranged from 3,7 to 8,9 fishes per pot. Dominant bycatch came from Famili Pomacentridae with total amount 201 fishes or 30, 78% of total catch.  Proportion of bycatch was relatively higher than target species with proportion 58% : 42%. Keywords: bycatch, pot, reef, reef fishes, Seribu island Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2071 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 6, No 2 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/58719 2025-04-15T07:25:05Z saintek:RSA

nmb a2200000Iu 4500 "231031 2023 eng " 2549-0885 1858-4748 dc WATER QUALITY AND TROPHIC STATUS IN JATIBARANG RESERVOIR, SEMARANG Rahmawati, Silviana Dian Department of Aquatic Resources, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275 Ain, Churun Management of Aquatic Resources, Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang Sabdaningsih, Aninditia Management of Aquatic Resources, Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang Jatibarang Reservoir is one of the reservoirs in Central Java. This reservoir has functions for fisheries and tourism activities. The reservoir needs to be managed properly with water quality and water fertility for the function of the reservoir. The characteristics of a reservoir that is lentic cause nutrient mixing, so it is possible that there are differences in characteristics in certain columns. The purpose of this research is to analyze the water quality and trophic status in Jatibarang Reservoir. The sampling technique used purposive sampling technique at 7 stations with 3 depth points (surface, middle, and bottom). Water quality variables measured included nitrate, phosphate, and total bacteria. The results of the variable concentrations were then calculated and compared with the literature. The results showed nitrate concentrations of 0,5 – 3,5 mg/l. Phosphate results ranged from 0,29 – 2,63 mg/l. Total bacteria ranged from 2 x 102 to 1,4 x 104  CFU/ml. Based on the nitrate concentration, Jatibarang Reservoir waters are classified as oligotrophic-mesotrophic. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-11-01 05:59:06 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/58719 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 3 (2023): SAINTEK PERIKANAN eng Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/30166 2021-11-30T12:01:20Z saintek:RSA

nmb a2200000Iu 4500 "210420 2021 eng " 2549-0885 1858-4748 dc Pristira, Angesti Lintang Universitas Diponegoro https://orcid.org/0000-0002-2445-4539 Purwanti, Frida https://scholar.google.co.id/citations?user=EAWuQAMAAAAJ&hl=id https://orcid.org/0000-0003-3872-3004 A'in, Churun Taman Nasional Karimunjawa (TNKJ) adalah salah satu kawasan pelestarian alam di Provinsi Jawa Tengah yang memiliki 5 ekosistem asli, salah satunya adalah ekosistem lamun. Lamun merupakan salah satu dari tiga ekosistem laut yang sangat penting dalam menyediakan berbagai layanan jasa ekologi maupun ekonomi. Berbagai kegiatan manusia diketahui mampu memberikan dampak negatif yang dapat merusak padang lamun, salah satunya adalah aktivitas perikanan. Adapun tujuan dari penelitian untuk mengetahui jenis pemanfaatan sumberdaya perikanan di ekosistem lamun, mengetahui jenis aktivitas yang paling memberi tekanan serta mengetahui lokasi yang paling peka akibat pemanfaatan sumberdaya perikanan di ekosistem lamun. Penelitian dilakukan mulai Oktober 2019 hingga Januari 2020 di Dukuh Batulawang, Legonipah dan Pelabuhan Rakyat Karimunjawa. Metode yang digunakan adalah metode deskriptif eksploratif. Pengumpulan data menggunakan kuesioner, wawancara dan data sekunder. Responden yang menjadi narasumber adalah penduduk lokal (51 orang) dan ahli kunci (6 orang) yang mengetahui kondisi asli Karimunjawa. Metode analisis yang digunakan diantaranya Analytical Hierrarcy Process (AHP) dan Indeks Kepekaan Lingkungan (IKL). Hasil penelitian menunjukkan bahwa aktivitas perikanan yang memberi tekanan pada ekosistem lamun adalah perikanan tangkap (0,13), keramba jaring apung (0,07), keramba jaring tancap (0,25), budidaya rumput laut (0,05) dan tambak (0,50). Tambak menjadi salah satu aktivitas perikanan yang paling memberi tekanan dibanding yang lain. Adapun lokasi pengamatan yang memiliki nilai kepekaan terbesar adalah Pelabuhan Rakyat Karimunjawa (48,49) yang kondisinya tergolong peka.   Karimunjawa National Park (KNP) is one of the nature conservation areas in Central Java which has 5 native ecosystems, one of them is the seagrass ecosystem. Seagrass is one of the three marine ecosystems which very important in providing various ecological and economical services. Various human activities could have negative impacts that can damage seagrass, one of them is fisheries activities. The purpose of the research was to find out the types of fisheries resources in the seagrass ecosystem, to find out the types of activities that give the biggest pressure and the most sensitive location from fisheries resources utilization in the seagrass ecosystem. The study was conducted from October 2019 to January 2020 in the Batulawang, Legonipah and Karimunjawa Public Harbor. Research method used was explorative descriptive. Collecting data used was questionnaires, interviews and secondary data.  Respondents who interviewed were 51 local residents and 6 expert person who know the original and existing conditions of the Karimunjawa. The analytical method used was the Analytical Hierrarcy Process (AHP) and the Environmental Sensitivity Index (ESI). The results showed that fisheries activities which give pressure on seagrass ecosystems were capture fisheries (0.13), floating net cages (0.07), fix net cages (0.25), seaweed cultivation (0.05) and fishpond (0.50). The most activities that give pressure compared to the others was fishpond. The greatest sensitive location was the Karimunjawa Public Harbor (48.49) and the condition was classified as sensitive. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-06-04 00:11:43 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/30166 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 1 (2021): SAINTEK PERIKANAN ind https://ejournal.undip.ac.id/index.php/saintek/article/download/30166/87970 Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/9334 2015-10-27T11:47:36Z saintek:RSA

nmb a2200000Iu 4500 "150225 2015 eng " 2549-0885 1858-4748 dc PENGARUH SEDIMENTASI TERHADAP KELIMPAHAN MAKROZOOBENTHOS DI MUARA SUNGAI BETAHWALANG KABUPATEN DEMAK (The effects of sedimentation on macrozoobenthos abundance in Betahlawang Estuary of Demak) Pamuji, Agung Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Universitans Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang Muskananfola, Max Rudolf Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Universitans Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang A’in, Churun Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Universitans Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang   ABSTRAK   Muara merupakan daerah pertemuan antara air tawar yang berasal dari daratan dengan air laut. Wilayah ini mempunyai karakteristik yang berbeda dengan laut maupun perairan air tawar. Bercampurnya kedua jenis air tersebut dipengaruhi pasang surut yang berlangsung secara berkala dan membawa partikel-partikel sedimen yang berasal dari daratan. Dengan adanya masukan air tawar yang membawa partikel sedimen dari daratan yang terjadi secara terus menerus, dapat menyebabkan terjadinya sedimentasi di daerah muara sungai. Adanya peningkatan sedimentasi tersebut dapat berpengaruh terhadap keberadaan hewan Makrozoobentos di daerah muara sungai. Penelitian ini dilakukan pada bulan November-Desember 2014 di Muara Sungai Betahwalang. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik dan nilai laju sedimentasi serta mengetahui pengaruh sedimentasi terhadap kelimpahan Makrozoobentos di muara Sungai Betahwalang. Metode yang digunakan adalah metode deskriptif dengan teknik purposive random sampling. Pengambilan sampel dilakukan di 5 (lima) stasiun dengan interval waktu 2 minggu. Karakteristik sedimentasi di muara Sungai Betahwalang adalah berupa liat dengan ukuran butiran fraksi tanah <0,002 mm  kandungan bahan organik termasuk dalam harkat sedang sebesar 14%, laju sedimentasi tergolong kategori sangat berat dengan rata-rata 0,34 kg/m2/hari. Kelimpahan Makrozoobentos di muara Sungai Betahwalang termasuk kategori yang tinggi berkisar antara 154-1.026 ind/m3. Nilai koefisien korelasi yang didapatkan sebesar (r=0,69) menandakan bahwa adanya korelasi yang kuat antara fraksi clay dengan kelimpahan Makrozoobentos. Sedangkan antara laju sedimentasi dengan kelimpahan Makrozoobentos diperoleh nilai koefisien korelasi (r=0,98) menandakan bahwa adanya korelasi yang sangat tinggi dan kuat antara keduanya.   Kata kunci : Sedimentasi, Makrozoobenthos, Betahwalang   Estuary is a transition area between freshwater from mainland and sea water. This area has different characteristic with neither ocean nor fresh water. The waters are influenced by tides which periodically also carry nutrient and sediment particles from mainland. Fresh water inflows carrying sediment particles from the mainland can increase both quantity and quality of sediments furthermore may affect the existence of macrozoobenthos in estuaries. This study was conducted on November to December 2014 in Betahlawang Estuary. The objectives of this study was to know characteristic of sediments and rate of sedimentation in Betahlawang Estuary, also to know the effect of sediment on the structure of macrozoobenthos community in Betahlawang Estuary. This was is a descriptive research used the purposive random sampling technique in collecting samples. The samples were collected from five stations per two. Sediments in the Betahwalang Estuary were  in the form of clay with a diameter of soil fraction <0,002 mm, organic matters were in medium class or 14%, and the rate of sedimentation was categorized as a very heavy with an average of 0.34 kg/m2/day. Abundance of macrozoobenthos in the Betahwalang Estuary was in the category of high or ranging around 154-1.026 ind/m3. There was a strong correlation (r=0,69) between clay fraction and the abundance of macrozoobenthos. While the high correlation coefficient was found also between the rate of sedimentation and abundance of macrozoobenthos (r=0,98), that indicated that their correlation was strong. Keywords : Sedimentation, Macrozoobenthos, Betahlawang   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2015-10-27 08:42:20 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/9334 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 10, No 2 (2015): JURNAL SAINTEK PERIKANAN eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/2783 2012-03-28T14:30:44Z saintek:RSA

nmb a2200000Iu 4500 2549-0885 1858-4748 dc The Community Structure of Macrozoobenthic Associated with Seagrass on Sandy Bottom in Jepara Ruswahyuni, Ruswahyuni Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang Macrozoobenthos play an importan role in food chain stucture within coastal ecosystem. As benthic organisms their life are highly influenced by surrounding environment including as physical, chemical anf biological factors. Sea grass is a macrophyte community that serves as habitat for macrozoobenthos. The result of observation showed that the most abundant macrozoobenthos living in seagrass at Bandengan and Pulau Panjang was Polychaeta. In addition, the abundance of macrozoobenthos in seagrass increased with the increase of seagrass density.   Keywords: Benthic, seagrass, community structure Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2012-02-22 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/2783 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 3, No 2 (2008): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/47736 2025-04-15T07:54:09Z saintek:RSA

nmb a2200000Iu 4500 "240427 2024 eng " 2549-0885 1858-4748 dc Kitarake, Yopi Sondy Universitas Diponegoro Semarang Hartoko, Agus Purnomo, Pujiono Wahyu Maro, Jahved Ferianto Penelitian ini bertujuan untuk mengembangkan model spasial kemiringan topografi dasar laut, mengetahui keanekaragaman jenis anemon laut, gradasi kedalaman di perairan pantai Pulau Pura, Kabupaten Alor. Hasil penelitian telah menemukan 5 spesies anemon yaitu Sticodactyla martensii, Lobophytum crissum, Pinnigorgia sp, Sinularia capillosa, Plerogyra sinuosa pada kedalaman gradasi berkisar antara 5 meter - 15 meter dengan kemiringan dasar laut berkisar antara 15% - 30% yaitu di - kelas lereng curam.   The aim of the study is to develop the slope spatialmodel of the seabed topography, determine the diversity of sea anemone species,  the depth gradation at the Pura Island coastal waters, Alor Regency. The study results had found 5 species of anemones, are Sticodactyla martensii, Lobophytum crissum, Pinnigorgia sp., Sinularia capillosa, Plerogyra sinuosa in the depth gradation ranging from 5 meters - 15 meters with a seabed slope ranging from 15% - 30% which is in the - steep class of slope. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-08-05 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/47736 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 1 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/39106 2021-11-30T11:46:09Z saintek:RSA

nmb a2200000Iu 4500 "210830 2021 eng " 2549-0885 1858-4748 dc Triarso, Imam Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Wibowo, Bambang A Mudzakir, Abdul Kohar Pesisir Semarang memiliki potensi sumberdaya ikan meskipun tren produksinya cenderung menurun terutama setelah tahun 2015. Penurunan produksi tersebut berpotensi memiliki dampak terhadap kesejahteraan 1068 nelayan di Kota Semarang. Tujuan penelitian ini untuk menganalisis bioekonomi perikanan laut di pesisir Kota Semarang. Hasil penelitian menunjukkan bahwa CPUE perikanan laut di pesisir Semarang cenderung menurun. Sedangkan fungsi produksi perikanan lautnya mengikuti persamaan: C = 1418,6 E - 0,803606616 E2. Nilai EMSY perikanan laut di pesisir Semarang sebesar 883 nelayan, sedangkan nilai EMEY sebesar 504 nelayan. Terbukti bahwa tingkat pemanfaatan sumberdaya ikan di pesisir Semarang telah mengalami over-fishing, baik secara biologi maupun ekonomi, sehingga pemanfaatan sumberdaya ikan di pesisir Semarang perlu diatur untuk menjaga keberlanjutan sumberdaya ikan dan profesi nelayan.   The coast of Semarang has potential for fish resources, although the trend of production tends to decline, especially after 2015. This decline has the potential (negative) impact on the welfare of 1,068 fishermen in Semarang City. The purpose of this study was to analyze the bioeconomics of marine fisheries in the coastal area of Semarang City. The results showed that the CPUE of marine fisheries on the coast of Semarang tended to decrease. Meanwhile, the marine fishery production function follows the equation: C = 1418.6 E - 0.803606616 E2. The EMSY value of marine fishery on the coast of Semarang is 883 fishermen, while the EMEY value is 504 fishermen. It is proven that the level of utilization of fish resources on the coast of Semarang has experienced over fishing, both biologically and economically, so that the utilization of fish resources on the coast of Semarang needs to be regulated to maintain the sustainability of fish resources and fishermen profession. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-08-24 20:27:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/39106 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 2 (2021): SAINTEK PERIKANAN ind Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/68870 2025-04-15T08:09:35Z saintek:RSA

nmb a2200000Iu 4500 "241230 2024 eng " 2549-0885 1858-4748 dc Darondo, Franky Adrian Politeknik Kelautan Perikanan Bitung Putri, Elsari Tanjung Manohas, Jul Santoso, Heru Karyanto, Karyanto Katili, Lidya Manengkey, Jenny I Saranga, Rudi Simau, Silvester Hamel, Samuel Pemanfaatan sumberdaya perikanan berupa usaha penangkapan ikan dengan bagan apung (floating bagan) telah berlangsung lama di desa Batu Putih dan jumlah bagan yang aktif cenderung berkurang. Penelitian ini bertujuan  untuk mengkaji aspek teknis pengoperasian bagan apung di perairan desa Batu Putih. Manfaat dari studi ini diharapkan dapat dijadikan sebagai salah satu bahan informasi ilmiah dan referensi bagi akademisi maupun pelaku usaha dibidang penangkapan. Penelitian dilaksanakan Agustus–November 2024, lokasi penelitian di perairan desa Batu Putih. Metode yang digunakan adalah metode deskriptif. Analisis data menggunakan teknik pengumpulan data observasi partisipan.  Penelitian dilakukan dengan melakukan pengoperasian bagan apung selama 4 (empat) trip penangkapan  dan melakukan pengambilan data yang terdiri dari desain dan konstruksi alat tangkap, proses pengoperasian dan hasil tangkapan selain itu pengambilan data parameter oseanografi perairan. Waktu terbaik untuk mengoperasikan bagan adalah saat arus tidak mengalami perubahan arah antara pukul 03.00 – 04.30 dini hari, dengan kedalaman daerah penangkapan bagan apung pada kedalaman 75 depa. Hasil analisis menunjukan  bahwa aspek teknis pengoperasian bagan apung di perairan Batu Putih meliputi perahu pelang berkapasitas 15 PK sebagai sarana transportasi menuju fishing ground dan alat tangkap itu sendiri yang terbuat dari rangkaian kayu dengan jaring/cang dengan bantuan lampu. Adapun beberapa tahap pengoperasiannya meliputi persiapan, pemasangan lampu, pengamatan ikan, penurunan jarring, pengangkatan jaring, penanganan hasil tangkapan. Hasil tangkapan utama yang diperoleh selama penelitian yaitu 65% ikan teri, 23% ikan layang dan 12% ikan sardin. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2024-12-31 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/68870 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 20, No 4 (2024): SAINTEK PERIKANAN ind Copyright (c) 2024 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/11144 2020-04-17T19:23:06Z saintek:RSA

nmb a2200000Iu 4500 "160225 2016 eng " 2549-0885 1858-4748 dc PERFORMA MIKROORGANISMEDENGAN PERLAKUAN BERBEDA TERHA DAP KONSENTRASI AMONIAK, NIRIT dan ASAM SULFIDA PADA LIMBAH PENCUCIAN IKAN TONGKOL Microorganism Performance with different Treatment Toward Consentration of Ammonia, Nitrite and Acid Sulfide Fitriadi, Rafiq Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Haeruddin, Haeruddin Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro A’in, Churun Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Limbah pencucian ikan; mikroorganisme; amoniak; nitrit; asam sulfida   Teknik untuk memperbaiki kualitas perairan yang aman dan efektif salah satunya dapat menggunakan mikroorganisme.Penelitian ini menggunakan produk mikroorganismepengolah limbah dengan komposisi (Rhodopseudomonas sp., Lactobacillus sp., Aspergillus sp., Penicilium sp., Sacharomyces sp. dan Actinomycets sp.) sebagai bahan bioremidiator untuk mereduksi bahan pencemar pada limbah pencucian ikan tongkol sebagai air sampel. Penelitian ini mengukur konsentrasi amoniak (NH3), nitrit (NO2) dan asam sulfida (H2S) sebagai parameter utama dan DO, pH dan temperatur air sebagai parameter pendukung. Penelitian ini bertujuan untuk mengetahui kemampuan mikroorganisme pengolah limbah dengan perlakuan yang berbeda terhadap konsentrasi amoniak, nitrit dan asam sulfida. Perlakuan berbeda pada penelitian ini yaitu dengan 2 tahap uji, mikroorganisme tidak difermentasi dan difermentasi masing-masing selama 24 dan 96 jam dan terdiri dari 3 ulangan. Hasil yang diperoleh dari penelitian ini menunjukkan bahwa masing- masing perlakuan mengalami peningkatan konsentrasi amoniak, nitrit dan asam sulfida. Peningkatan konsentrasi amoniak, nitrit dan asam sulfida yang paling rendah dari perlakuan lainnya adalah pada perlakuan mikroorganisme yang tidak difermentasi selama 96 jam.   Kata kunci: Limbah pencucian ikan, mikroorganisme, amoniak, nitrit, asam sulfida     ABSTRACT  One of techniques to improve the quality of water that is safety and effectivelly can use microorganisms. This study uses a product microorganisms waste treatment with the composition are (Rhodopseudomonas sp., Lactobacillus sp., Aspergillus sp., Penicilium sp., Sacharomyces sp. and Actinomycets sp.) as a material bioremidiator to reduce pollutants and waste leaching Tongkol fish (Auxis thazard) as water samples , This study measured the concentration of ammonia (NH3), nitrite (NO2) and hydrogen sulfide (H2S) as the main parameter and DO, pH and water temperature as a secondary parameter. This study aims to determine the ability of microorganisms to the waste treatment unequal treatment of concentrations of ammonia, nitrite, and hydrogen sulfide. Different treatment on this study are the second phase of the test, the microorganism is not fermented and unfermented respectively for 24 and 96 hours and consists of three replications. The results of this study indicate that each treatment had increased concentrations of ammonia, nitrite, and hydrogen sulfide. Increasing concentrations of ammonia, nitrite and hydrogen sulfide are lower than most other treatments is the treatment of microorganisms are fermented for 96 hours. Keywords: Fish washery waste, microorganism, ammonia, nitrite, hydrogen sulfide Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-02-25 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/11144 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 11, No 2 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/6765 2025-04-26T12:34:09Z saintek:RSA

nmb a2200000Iu 4500 "120822 2012 eng " 2549-0885 1858-4748 dc Shelf Life Estimation of “So Lite” Fish Nugget Amalia, Ulfah Staf Pengajar Program Studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan UNDIP Jl. Prof. H. Soedarto, SH Tembalang Semarang Fish nugget is a food product with a high degree of risk because it has a degree of acidity greater than 4.5 and more than 0.85 for water activity. Based on this risk, the companies generally put storage adviceinformation on the fish nuggets packaging, as a quality parameter of the product. One method that is  simple enough to be applied in the expected shelf life by measuring the rate of decline in the quality parameter is Arrhenius model. The purpose of this analysis was to determined the basis used by a  company  in the food product shelf-life estimation in this case is a nugget of fish products with trademarks  Fish Nugget '’So Lite". Based on the plot between the effect of storage temperature on storage time, obtained by equation y = -6.18 ln (x) + 309.2 in the regression (R2 = 0.999). Regression values indicates that the allegations made by the companies of fish nugget is true because R2>0.75. Assumptions used by the companies might be associated with activity of microorganism, where an increased along with increase in temperature.   Keywords: fish nugget, shelf life, quality, Arrhenius Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-04-25 16:55:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6765 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 8, No 1 (2012): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/43646 2022-04-19T17:13:22Z saintek:RSA

nmb a2200000Iu 4500 "220325 2022 eng " 2549-0885 1858-4748 dc ANTIBACTERIAL POTENCY OF CELL FREE SUPERNATANT PRODUCED BY LACTIC ACID BACTERIA ISOLATED FROM INDONESIAN FERMENTED FISH PRODUCTS AGAINST HISTAMINE-PRODUCING BACTERIA Putra, Masagus Muhammad Prima Bachelor of Fish Product Technology, Department of Fisheries, Universitas Gadjah Mada, Jl. Flora Gedung A4, Bulaksumur Yogyakarta Indonesia 55281 Al-Hammam, Muhammad Yaafi Fish Product Technology, Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada Ahsan, Giffarri Fish Product Technology, Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada Chandra, Klara Kharisma Bunga Fish Product Technology, Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada Puspita, Indun Dewi Fish Product Technology, Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada antibacterial; lactic acid bacteria; histamine-producing bacteria; cell free supernatant The toxicity caused by high histamine content produced by histamine-producing bacteria (HPB) during the fermentation of scombridae fish group based fermented fish products is still a problem that requires a solution. This study aims to explore the potential of secondary metabolites in the form of cell free supernatant (CFS) produced by lactic acid bacteria (LAB) as antibacterial agents against HPB. The LAB was isolated from the fermented fishery products named bekasan, cincalok and fish sauce using MRS-Agar and fermented on MRS-broth for 48 hours. CFS was collected by centrifugation at 15,000 x g for 15 minutes, followed by heating at 100oC for 3 minutes and pH neutralization with 0.1N NaOH. Antimicrobial activity of CFS then tested on HFB namely Morganella morganii TK7, Citrobacter freundii CK1, and Klebsiella sp. CK13.2 (collection of the Laboratory of Fisheries Product Quality and Safety, Department of Fisheries UGM) using the macrodilution method. Isolation of LAB from all three products successfully isolated 34 isolates. The results of the antibacterial activity showed that 4 isolates namely GMCN 1.12, GMBK 2.6, GMBK 2.7, dan GMKI 2.1 were able to inhibit HFB growth more than 70%. The highest activity was shown by GMBK 2.7 which inhibits 98% against Morganella morganii TK7, 99% against Citrobacter freundii CK1, and 84% against Klebsiella sp. CK13.2. The antimicrobial activity was reduced after proteolytic enzymes were added suggesting that the bioactive compound came from peptide-based substances like bacteriocin. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2022-03-25 00:50:24 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/43646 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 18, No 1 (2022): SAINTEK PERIKANAN eng Copyright (c) 2022 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/55123 2025-05-15T10:49:22Z saintek:RSA

nmb a2200000Iu 4500 "231231 2023 eng " 2549-0885 1858-4748 dc Analysis of Kuro Fish Stock (Eleutheronema tetradactylum, Shaw 1804) Based on Data at the Pekalongan Nusantara Fisheries Port (PPPN in Indonesian) aliffyana, firanika Departemen Sumber Daya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Jl. Prof Jacub Rais,Tembalang, Semarang, Indonesia 50275 Saputra, Suradi Wijaya Departemen Sumber Daya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Jl. Prof Jacub Rais,Tembalang, Semarang, Indonesia 50275 Solichin, Anhar Departemen Sumber Daya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Jl. Prof Jacub Rais,Tembalang, Semarang, Indonesia 50275 E. tetradactylum; gillnet; recruitment; mortality, growth. Kuro fish is a demersal fish that lives in the bottom column of the water. Kuro fish is a catch of gillnet gear with a high economic value. This study aims to determine the size structure, , length-weight relationship, growth parameters, recruitment pattern, mortality rate and exploitation rate of Kuro fish. The research was conducted from June until August 2022 at Nusantara fishing port (PPN) Pekalongan or PPPN. The survey method was used, with data collection of length (mmTL) and weight (gram). Data analysis method using ELEFAN I tool on FiSAT II software. The study's results obtained 216 Kuro fish samples with lengths ranging from 265-690 mmTL. The size of the first time caught () was 441.90 mmTL with a selective fishing gear of 4.35. The length-weight relationship equation of Kuro fish is  with a negative allometric growth pattern. The results of the growth parameter analysis obtained the von Bertalanffy equation , with a value of L∞ of 715.05 mm, K of 1.5 and -0.043 years. Peak recruitment of Kuro fish occurred in August at 16.32%. The total mortality rate (Z) of fish was 2.81/year, the natural mortality rate (M) was 0.97/year, and the fishing mortality rate (F) was 1.84/year. The exploitation rate (E) of fish amounted to 0.66/year, included in the over-exploited category because it has exceeded the optimum (E> 0.5). Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2023-12-29 08:03:59 https://ejournal.undip.ac.id/index.php/saintek/article/view/55123 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 19, No 4 (2023): SAINTEK PERIKANAN eng Copyright (c) 2023 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/13193 2020-04-17T19:24:53Z saintek:RSA

nmb a2200000Iu 4500 "170130 2017 eng " 2549-0885 1858-4748 dc EFEKTIVITAS MIKROORGANISME SEBAGAI BAHAN BIOREMIDIASI PADA LIMBAH PENCUCIAN IKAN TONGKOL (Auxis thazard) (SKALA LABORATORIUM) Microorganism Effectiviness as Bioreidiation of Tongkol (Auxis thazard) Wahery Waste (Laboratory Scale) Fitriadi, Rafiq Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Haeruddin, Haeruddin Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ain, Churun Program Studi Manajemen Sumberdaya Perairan, Departemen Sumberdaya Akuatik, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Limbah Pencucian Ikan; Mikroorganisme; Ammoniak; Nitrit; Asam Sulfida   Limbah pencucian ikan dari pasar ikan dan industri pengolahan ikan tradisional biasanya langsung dibuang di saluran pembuangan tanpa adanya pengolahan limbah terlebih dahulu. Dampak pencemaran ini dapat menurunkan kualitas perairan sehingga menganggu kelangsungan hidup biota perairan dan masyarakat sekitar karena proses degradasi dari limbah. Oleh karena itu dibutuhkan teknik yang aman, efektif, dan ekonomis salah satunya dengan mikroorganisme sebagai bioremidiator. Penelitian ini menggunakan produk mikroorganisme pengolah limbah sebagai bahan bioremidiasi dengan komposisi mikroorganisme (Rhodopseudomonas sp., Lactobacillus sp., Aspergillus sp., Penicilium sp., Sacharomyces sp., dan Actinomycets sp.) untuk mereduksi bahan pencemar dan limbah pencucian ikan tongkol sebagai air sampel. Penelitian ini mengukur konsentrasi amoniak (NH3), nitrit (NO2) dan asam sulfida (H2S) sebagai parameter utama dan DO, pH, temperatur, dan bau air sebagai parameter pendukung. Penelitian ini bertujuan untuk mengetahui efektivitas penggunaan mikroorganisme dalam upaya mengurangi bahan pencemar limbah pencucian ikan dari konsentrasi amoniak, nitrit dan asam sulfida. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan penambahan mikroorganisme 6 perlakuan termasuk kontrol (K= Kontrol, A= 0,01 ml , B = 0,1 ml ,C= 1 ml, D =10 ml dan E= 100 ml)  menggunakan mikroorganisme yang tidak difermentasi selama 96 jam, terdiri dari 3 ulangan. Hasil yang diperoleh dari penelitian ini menunjukkan bahwa konsentrasi amoniak, nitrit, dan asam sulfida pada perlakuan A, B, C, D, dan E lebih rendah dibandingkan dengan kontrol, hal ini menunjukkan bahwa mikroorganisme dapat menurunkan limbah pencucian ikan tongkol. Nilai efektivitas paling tinggi yaitu perlakuan E sebagai bioremidiasi limbah pencucian ikan dengan persentase amoniak 59,88 %, nitrit 64,60 % dan asam sulfida 19,19%.    Fish washery waste from the fish market and the traditional fish processing industry actually disposed in the sewer without waste treatment. The impact this poluttion can degrade the quality of water that disrupts the survival of aquatic biota and local resident because the degradation process of waste. Therefore we need a technique that is safe, effective, and economical one of them with the bacteria as bioremidiator. This study using microorganism as bioremidiator the composition of microorganisms (Rhodopseudomonas sp., Lactobacillus sp., Aspergillus sp., Penicillium sp., Sacharomyces sp., and Actinomycets sp.) and Tongkol washery waste as sample. This study measured the concentration of ammonia (NH3), nitrite (NO2) and hydrogen sulfide (H2S) as the main parameter and DO, pH, temperature, and the smell of the water as a secondary parameter. This study aims to determine the effectiveness of the use of microorganism in an effort to reduce pollutants fish washing waste the concentration of ammonia, nitrite and hydrogen sulfide.This study uses a completely randomized design (CRD  with addition of microorganisms 6 treatments included control (K = control, A = 0.01 ml, B = 0.1, C = 1 ml, D = 10 ml and E = 100 ml). The results obtained from this study showed that the concentrations of ammonia, nitrite, and hydrogen sulfide on treatment A, B, C, D, and E is lower than in the controls, suggesting that microorganism can reduce tongkol washery wash. The highest value of the effectiveness is treatment E as bioremediation of fish washery waste with percentage of ammonia 59.88%, 64.60% nitrite and 19.19% hydrogen sulfide.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2016-11-20 00:00:00 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/13193 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 1 (2016): SAINTEK PERIKANAN eng Copyright (c) 2017 JURNAL SAINTEK PERIKANAN

oai:ojs.ejournal.undip.ac.id:article/22063 2020-04-17T19:29:54Z saintek:RSA

nmb a2200000Iu 4500 "190214 2019 eng " 2549-0885 1858-4748 dc ANALISIS KELAYAKAN USAHA KERAJINAN TANGAN DARI KULIT KERANG DI KELURAHAN BUNGKUTOKO KOTA KENDARI SULAWESI TENGGARA (Feasibility Study of Handycrafts from Shellfish in Bungkutoko Village, Kendari City, Southeast Sulawesi) Asriyana, Asriyana Jurusan Manajemen Sumberdaya Perikanan, FPIK-UHO Kurnia, Agus Jurusan Budidaya Perairan, FPIK-UHO Alirman, La Ode Jurusan Ilmu Kelautan, FPIK-UHO A, Nurdiana Jurusan Agribisnis Perikanan, FPIK-UHO Finansial; kelayakan usaha; kerajinan tangan; Pulau Bungkutoko Kelurahan Bungkutoko termasuk wilayah administrasi Kota Kendari yang daratannya terpisah karena merupakan wilayah kepulauan. Potensi sumberdaya perikanan yang dimiliki sangat melimpah sehingga menjadi peluang usaha bagi warga setempat dalam peningkatan perekonomian keluarga.  Penelitian ini bertujuan untuk untuk menganalisis kelayakan usaha kerajinan tangan yang berbahan dasar kerang kerangan di Kelurahan Bungkutoko. Metode analisis kelayakan finansial meliputi NPV (net present value), IRR (internal rate of return), Net B/C ratio (Net Benefit Cost Ratio), PBP (Pay Back Period), dan BEP (Break Event Point).  Hasil yang diperoleh menunjukkan bahwa nilai seluruh kriteria kelayakan finansial yang digunakan menghasilkan nilai yang menunjukkan kategori layak (NPV sebesar Rp10.459.436,-, IRR sebesar 35%,  Net B/C  2,03, PBP 12 bulan serta BEP sebesar Rp4.260.943,- dan 154 unit). Hal ini mengindikasikan bahwa usaha kerajinan tangan yang dilakukan oleh wanita nelayan di Kelurahan Bungkutoko layak untuk dilanjutkan   Bungkutoko village is included in the administrative area of Kendari City whose land is separated because it is an archipelago. The potential of fisheries resources owned is very abundant so that it becomes a business opportunity for local residents in improving the family's economy. The research aims to analyze the feasibility of a handicraft business based on shellfish shells in Bungkutoko Village. The methods of financial feasibility analysis are NPV (net present value), IRR (internal rate of return), Net B/C ratio (Net Benefit Cost Ratio), PBP (Pay Back Period), and BEP (Break Event Point). The results  show that all financial feasibility criteria shows a feasible category (NPV is Rp 10,459,436,-; IRR is 35%;  Net B/C 2.03; PBP is 12 months; and BEP is Rp 4,260,943,; and 154 units). It’s indicated that the handicraft business by fishermen women in Bungkutoko Village is feasible to continue. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-01-15 10:11:04 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/22063 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 14, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/47012 2022-06-18T13:58:06Z saintek:RSA

nmb a2200000Iu 4500 "211231 2021 eng " 2549-0885 1858-4748 dc THE LEAF COLOUR OF MANGROVE (Rhizophora mucronata Lamk) IN TERMS OF ENVIRONMENTAL FACTORS IN MANGROVE FOREST OF MOJO VILLAGE, PEMALANG, INDONESIA Widyorini, Niniek Aquatic Resources Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Rudiyanti, Siti Aquatic Resources Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Suryanti, Suryanti Aquatic Resources Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Ain, Churun Aquatic Resources Department, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro Ismoyo, Untung Marine and Fisheries Ministry. Directorate General of Marine Spatial Management. Jakarta. Indonesia Leaf color; mangrove forest; Mojo Village’s. Mangrove (Rhizopora mucronata) is one kind of mangrove vegetation that planted on rehabilitation area of Mojo village’s mangrove forest. This species was choosen due easily obtained and sowed so that it dominated in the location. This research aimed to know the conditioning aspect from its leaves color and environmental factors from September - October 2019 in the Mojo village's mangrove forest. A total of 405 leaf samples were chosen in the same condition and derived from three research ie the zone closest to the sea, the zone closest to the river and the Central Zone. The leaf tip has the highest range of leaves color than the other leaf parts. Based on two-way ANOVA analysis, the observed zones having a difference of each other also the observed leaf parts too, while the interaction of them having no distinction significantly. The average color value on the part of the upper leaf surface was 115.3º and the under leaf surface was 88.55º more dynamic than the undersurface. The result of Pearson's correlation analysis was 0,396 that means low. Based on PCA analysis, the leaf color on the part of the upper leaf surface was negatively correlated with soil salinity in the location. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2021-12-10 06:13:54 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/47012 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 17, No 4 (2021): SAINTEK PERIKANAN eng Copyright (c) 2021 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/67311 2025-10-08T04:51:30Z saintek:RSA

nmb a2200000Iu 4500 "251001 2025 eng " 2549-0885 1858-4748 dc PERUBAHAN SOSIAL DAN BUDAYA MASYARAKAT NELAYAN TUNA DI DESA OLELE DAN TANJUNG KRAMAT, GORONTALO Syamsuddin, Syamsuddin Fakultas Kelautan dan Teknologi Perikanan, Universitas Negeri Gorontalo, Jl, Jenderal Sudirman No. 6, Dulalowo Timur, Kota Tengah, Kota Gorontalo, Gorontalo, Indonesia, 96128 Pasisingi, Nuralim Fakultas Kelautan dan Teknologi Perikanan, Universitas Negeri Gorontalo, Jl, Jenderal Sudirman No. 6, Dulalowo Timur, Kota Tengah, Kota Gorontalo, Gorontalo, Indonesia, 96128 Nento, Wila Rumina Fakultas Kelautan dan Teknologi Perikanan, Universitas Negeri Gorontalo, Jl, Jenderal Sudirman No. 6, Dulalowo Timur, Kota Tengah, Kota Gorontalo, Gorontalo, Indonesia, 96128 Saleh, Yuliana Yunus Fakultas Kelautan dan Teknologi Perikanan, Universitas Negeri Gorontalo, Jl, Jenderal Sudirman No. 6, Dulalowo Timur, Kota Tengah, Kota Gorontalo, Gorontalo, Indonesia, 96128 Butolo, Ivana Kantor BAPPEDA Provinsi Gorontalo Jalan By Pass, Tamalate, Kecamatan Kota Timur, Kota Gorontalo, Gorontalo 96135 Perubahan Sosial; Nelayan Tuna; Ekologi Laut; Kebijakan Perikanan; Gorontalo Nelayan merupakan salah satu pekerjaan yang mendominasi masyarakat di Desa Olele dan Kelurahan Tanjung Kramat, dimana profesi nelayan yang menjadi mata pencaharian masyarakat yakni nelayan penangkap tuna. Tuna menjadi komoditas unggulan terutama di perairan Teluk Tomini Gorontalo sehingga mampu meningkatkan perekonomian setempat. Namun, dalam beberapa tahun terakhir hasil tangkapan tuna semakin menurun mengakibatkan nelayan penangkap tuna mengalami penurunan pendapatan yang memaksa mereka untuk beralih profesi. Penelitian ini bertujuan untuk mengkaji perubahan sosial dan budaya yang terjadi pada masyarakat nelayan tuna di Desa Olele dan Kelurahan Tanjung Kramat, Gorontalo, sebagai respon terhadap dinamika ekologi dan kebijakan perikanan. Penelitian ini menggunakan pendekatan kualitatif-deskriptif, data diperoleh melalui wawancara mendalam, observasi partisipatif, dan studi dokumentasi. Hasil penelitian menunjukkan bahwa penurunan signifikan hasil tangkapan tuna sejak tahun 2019, kemunculan predator seperti paus orca, serta kebijakan pemerintah yang kurang tepat sasaran seperti bantuan perahu yang tidak sesuai kebutuhan teknis telah memengaruhi pola hidup, interaksi sosial, dan strategi ekonomi masyarakat nelayan. Selain itu, penggunaan alat tangkap ilegal seperti rumpon yang tidak terkontrol turut memperparah kondisi perairan dan mempercepat krisis sumber daya. Di sisi lain, peran organisasi seperti Yayasan MDPI berkontribusi dalam meningkatkan kesadaran masyarakat akan pentingnya keberlanjutan sumber daya laut. Penelitian ini merekomendasikan perlunya kebijakan berbasis komunitas dan pengelolaan perikanan yang adaptif terhadap kondisi sosial dan ekologis lokal. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-09-30 23:57:48 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/67311 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 3 (2025): SAINTEK PERIKANAN eng Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/15291 2020-04-17T19:25:53Z saintek:RSA

nmb a2200000Iu 4500 "170720 2017 eng " 2549-0885 1858-4748 dc KELAYAKAN FINANSIAL UNIT USAHA PENANGKAPAN MULTIGEAR (JARING RAMPUS DAN JARING UDANG) DI PELABUHAN PERIKANAN PANTAI TAWANG KABUPATEN KENDAL (Financial Analysis of Multigear Fishing Bussiness In Tawang Fishing Port, Kendal Regency) Rini, Nova Puspita Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Hapsari, Trisnani Dwi Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Sardiyatmo, Sardiyatmo Departemen Perikanan Tangkap, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Analisis Finansial; Penangkapan Multigear; PPP Tawang   Peningkatan jumlah alat tangkap multigear (jaring rampus dan jaring udang) berbanding terbalik dengan  penurunan jumlah produksi hasil tangkapan utamanya yaitu, ikan  Kembung dan Udang Putih sejak tahun 2014 hingga tahun 2015. Sulitnya pembiayaan investasi dan pengembangan usaha penangkapan multigear di Pelabuhan Perikanan Pantai Tawang membuat sebagian besar Nelayan terikat pada sistem ijon (Patron-Klien), sehingga menyebabkan penerimaan Nelayan tidak maksimal karena harga jual yang ditetapkan rendah dari pihak Bakul (Patron) selaku pemberi pinjaman modal. Untuk itu, perlu adanya analisis finansial apabila Nelayan tidak terikat sistem ijon.Berdasarkan permasalahan tersebut, tujuan dari penelitian ini adalah, menganalisis kelayakan finansial untuk mengatahui apakah hingga saat ini usaha penangkapan multigear terikat sistem ijon masih layak untuk dilanjutkan, serta menganalisis bagaimana kelayakan finansial usaha apabila Nelayan tidak terikat sistem ijon.Hasil perhitungan analisis finansial usaha penangkapan multigear terikat sistem ijon discount rate 5%  ialah, R/C ratio 1,79, PP 3,112, NPV Rp. 340.654.823,79., Net Net B/C ratio 1,41 dan IRR 13,26%. Sedangkan, hasil  analisis finansial usaha penangkapan multigear memanfaatkan lembaga keuangan  discount rate  9% ialah, R/C ratio 1,99, PP2,388, , NPVRp. 384.956.100,17., Net Net B/C ratio3,50 dan  IRR 50,10% Berdasarkan nilai-nilai tersebut usaha penangkapan multigear terikat sistem ijon masih layak untuk dilanjutkan, namun usaha ini akan lebih layak untuk dijalankan apabila memanfaatkan lembaga keuangan.    The increasing number of using multi-fishing gear (rampus net and trammel net) was inversely with the amount of decreasing production of each target catch, these were long jowed mackerel (restrelliger sp.) and white shrimp (paneaus sp.), since 2014 till 2015.  The difficulty of financial and development business investment arrest multi-fishing gear makes most of the fishermen attached to small seller ( patron-client system).  This condition makes fisherman couldn’t get maximum revenue cause of the selling low price from small seller as the Lender of Capital. Based on these problems, the aims of it research are,  analysis the feasibility financial to find out weather till today its business still feasible to continue, and how is the analysis business feasibility if the fishermen not bound  to ijon system (patron-client).The calculation result of financial analysis multi-fishing gear business bound to ijon system by discount rate 5% are, R/C ratio 1,79, PP 3,112, NPV Rp. 340.654.823,79.,, Net Net B/C ratio 1,41, and  IRR 13,26%. Whereas, the result of financial analysis multi-fishing gear business use financial institution discount rate 9% are, R/C ratio 1,99, PP2,388, , NPVRp.384.956.100,17.,  Net Net B/C ratio3,50 and  IRR 50,10%. According to those values multi-fishing gear business that bound to ijon sytem is still feasible to continue, But this business will be recognised to run better when use financial institutions.   Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2017-07-20 11:54:07 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/15291 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 12, No 2 (2017): SAINTEK PERIKANAN eng Copyright (c) 2017 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/19485 2019-09-27T13:55:58Z saintek:RSA

nmb a2200000Iu 4500 "190717 2019 eng " 2549-0885 1858-4748 dc VALUASI EKONOMI DAN PERSEPSI WISATAWAN TERHADAP POTENSI WISATA PANTAI KARANG JAHE KABUPATEN REMBANG (Economic Valuation and Tourist Perception in Karang Jahe Beach Tourism Potential Rembang Regency) Putri, Brenda Sabrina Marsha Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Ain, Churun Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Rudiyanti, Siti Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Valuasi Ekonomi; Potensi Wisata; Travel Cost Method; Pantai Karang Jahe; Persepsi Pantai Karang Jahe (PKJ) merupakan obyek wisata yang memiliki potensi, seperti air laut yang jernih, pasir laut yang putih, terumbu karang serta hamparan pohon cemara, sehingga membuat banyak wisatawan berkunjung. Penelitian ini bertujuan untuk mengetahui valuasi ekonomi serta persepsi wisatawan terhadap PKJ. Penelitian dilakukan di PKJ Jl. Rembang-Lasem, Punjulharjo, Kecamatan Rembang, Kabupaten Rembang Jawa Tengah pada Desember 2017. Penelitian menggunakan metode kuantitatif dengan melakukan survey kepada 100 wisatawan. Pengumpulan data dari responden (dengan kuesioner) teknik sampling accidental sampling, sedangkan analisis valuasi ekonomi nilai biaya wisata menggunakan pendekatan Travel Cost Method. Tipologi wisatawan mayoritas pelajar/mahasiswa, datang berkelompok, tujuan berlibur, ber-pendapatan kurang dari Rp.500.000/bulan dan berasal dari wilayah Rembang. Hasil penelitian menunjukkan total biaya perjalanan yang dikeluarkan wisatawan selama berwisata di PKJ pada tahun 2017 sebesar Rp.136.651.504.395,00; 2016 Rp.93.880.800.000,00; 2015 Rp. 88.050.900.000,00; dan 2014 Rp. 1.535.734.440,00. Nilai total ekonomi pariwisata dipengaruhi oleh jumlah wisatawan dan laju inflasi. Persepsi wisatawan terhadap PKJ masuk kedalam 2 kategori yaitu kurang baik dan tidak baik. Persepsi wisatawan mengenai potensi wisata kuliner, wahana wisata, pelayanan pengelola pantai PKJ yaitu tidak baik. Wisata pantai, fasilitas umum, potensi kenyamanan mendapatkan nilai kurang baik, sehingga wisatawan cukup berkeinginan untuk datang kembali   The Karang Jahe Beach (KJB) is a tourist destination with many potentials such as clear sea water, white sand, coral reefs and pine trees. Those potential lead a lot of tourists visit to KJB. The aims of this research were to determine the economic valuation and the tourists perception. The research was conducted at KJB Jl. Rembang-Lasem, Punjulharjo, Rembang Sub-district, Rembang Regency, Central Java in December 2017. The research used quantitative method, with a survey conducted to 100 tourists as a respondents. Accidental sampling is used for data collection using questionnaire. The economic valuation analysis of the tour’s cost value Travel Cost Method approach. Typologies of tourists are mostly students coming from Rembang, in a group for holiday, having incomes of less than Rp.500.000/month. The results showed the total travel cost spent tourists during the trip is Rp.136.651.504.395 in 2017; Rp.93.880.800.000,00 in 2016; Rp.88.050.900.000,00 in 2015; and Rp.1.535.734.440,00 in 2014. The total value of the tourism affected by the number of tourist and rate of inflation. Tourists perception about KJB fall into two categories these are not good enough good and not good. Tourists perception about the potential of culinary tourism, tourist rides and beach management service are not good. Coastal tourism, public facilities, and comfort potential getting less attractive scores to anable tourists to return again in the future. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-07-17 17:55:14 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/19485 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 1 (2019): SAINTEK PERIKANAN eng https://ejournal.undip.ac.id/index.php/saintek/article/download/19485/50331 Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6830 2025-04-26T12:46:35Z saintek:RSA

nmb a2200000Iu 4500 "110822 2011 eng " 2549-0885 1858-4748 dc Genetic Diversity of Zooxanthellae from Several Host in the Coral Reef Waters at Bokor Island Jepara Purnomo, Pujiono Wahyu Staf Pengajar Program Studi Manajemen Sumberdaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro In the life history of coral, which is almost no corals living without zooxanthellae. Some clade of zooxanthellae have been identified and found. Studies on clade of zooxanthellae contributes to the diversity of the information and explanations which provides for the meaning of the phenomenon of fluctuations in coral reefs, include at around coral reef waters of Bokor Island Jepara. This study aims to evaluate the diversity of zooxanthellae derived from several types of hosts and distribution of its existence. Research was conducted at the Brackishwater Aquaculture Development Centre (BBPBAP) Jepara between July to October 2005. Provision of zooxanthellae has been done with the stage of purification, whereas for  the  evaluate  of zooxanthellae  diversity  by using DNA analysis  with RFLP  (Restriction Fragment Length Polymorphisme) technique and continued with the phylogenik analysis to perform grouping among clade found. Results showed that : (a) Variation of zooxanthellae clade diversity from host sea anemone, tridacna, Acropora, Favites and Goniastrea are clade A, clade B and clade C, with the zooxanthellae clade Tridacna and sea anemones profile by 80% are clade A and 20% are clade B; zooxanthellae clade profile from Acropora by clade A (60%), clade B (20%) dan clade C (20%); zooxanthellae clade profile from Favites by clade A (20%), and clade C (80%) and zooxanthellae clade profile from Goniastrea by clade A (60%), and clade C (40%). (b)   Based on the distribution of the host, then clade A is predominantly found in shallow depths (<3m).   Key words: Zooxanthellae, clade Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2014-05-05 11:29:40 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6830 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 7, No 1 (2011): Jurnal Saintek Perikanan eng Copyright (c)

oai:ojs.ejournal.undip.ac.id:article/21030 2018-12-04T09:38:40Z saintek:RSA

oai:ojs.ejournal.undip.ac.id:article/77362 2025-12-20T05:13:49Z saintek:RSA

nmb a2200000Iu 4500 "251201 2025 eng " 2549-0885 1858-4748 dc Awaludin, Mochamad Bashiir Program Studi Perikanan, Universitas Padjadjaran, Jl. Raya Bandung - Sumedang KM.21 https://orcid.org/0009-0006-7023-2714 Kurniawati, Nia https://scholar.google.com/citations?user=YwDUfs0AAAAJ&hl=id Herawati, Titin https://scholar.google.co.id/citations?user=oNdzPtgAAAAJ&hl=en Kurangnya pangan tradisional dengan kandungan protein tinggi mendorong eksplorasi ikan nila sebagai sumber protein lokal. Penelitian ini bertujuan untuk mengoptimalkan fortifikasi hidrolisat protein ikan nila (HPI) pada rengginang yang merupakan penganan yang terbuat dari beras ketan guna meningkatkan nilai gizi tanpa mengorbankan karakteristik fisik dan sensori. Metode penelitian menggunakan RAL, uji fisik (ekspansi volume) dan evaluasi sensoris oleh panelis. Data dianalisis menggunakan Friedman dan Bayes untuk menentukan preferensi. Hasil penelitian menunjukkan bahwa fortifikasi 5% HPI merupakan rengginang yang optimal dengan ekspansi volume 261,0%, kadar protein 14,57% (peningkatan 116%), dan nilai sensoris rata-rata 7,3 pada skala 1-9 yang menunjukkan tingkat penerimaan yang tinggi dari panelis. Kadar air produk (8,1%) memenuhi standar camilan. Fortifikasi ini meningkatkan nilai nutrisi tanpa mengorbankan penerimaan konsumen, mendukung pengembangan pangan fungsional berbasis bahan lokal. Penelitian ini menunjukkan potensi rengginang fortifikasi HPI sebagai camilan sehat, dengan rekomendasi untuk uji lanjutan mengenai stabilitas penyimpanan dan strategi pemasaran untuk adopsi pasar. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2025-11-26 05:57:09 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/77362 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 21, No 4 (2025): SAINTEK PERIKANAN ind Copyright (c) 2025 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/20532 2020-04-17T19:27:51Z saintek:RSA

nmb a2200000Iu 4500 "181002 2018 eng " 2549-0885 1858-4748 dc APLIKASI ES CURAI DARI MESIN PENGHANCUR ES PADA KUALITAS PROTEIN DAGING KERANG REBUS (Anadara granosa) (The Application of ice crusher from designing machine in protein quality shellfish meat steamed (Anadara granosa) Romadhon, Romadhon Program studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Agustini, Tri Winarni Program studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Suharto, Selamet Program studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Darmanto, Y.S. Program studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Fahmi, Ahmad Suhaeli Program studi Teknologi Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Daging kerang Anadara granosa; mesin penghancur es; kadar Protein; TVB-N Kandungan protein Kerang Anadara granosacukup tinggi sehingga rentan sekali mengalami pembusukan. Kendala yang dihadapi dalam penggunaan es adalah bentuk es. Penggunaan bongkahan es yang besar dan kasar serta tajam akan menyebabkan kerusakan fisik. Alternatif yang dapat diterapkan adalah Alat pemecah es . Penelitian ini bertujuan  mengamati kualitas  dan kerusakan protein selama pendinginan dengan membandingkan es curai yang dihancurkan manual dan es curai hasil dari mesin penghancur es. Metode yang dilakukan dengan Pengesan daging kerang dengan es yang dihancurkan manual dengan es hasil mesin penghancur.Sampel disimpan selama 6 hari dan diamati kandungan protein dan TVB-N setiap 3 hari sekali. Rancangan Percobaan menggunakan rancangan faktorial dengan 2 faktor yaitu es yang dihancurkan secara manual dan dihancurkan mesin penghancur es. Hasil dari penelitian ini didapatkan kandungan protein kerang tanpa pengesan dari hari ke-0 14.04±0,71 %; dan hari ke-6 9.27±0.17%. Kandungan protein kerang yang diberi es balok yang dihancurkan secara manual hari ke-0 14,23±0,46%; dan hari ke-6 11,68±0,40%. Kerang yang menggunakan es curai hasil mesin penghancur es hari ke-0 adalah 13,91±0,68%; dan hari ke-6 yaitu 14,28±0,63%. Hasil kandungan TVB-N kerang tanpa pengesan dari hari ke-0 13.11±0,29 mgN/100g; dan hari ke-6 64,97±0.61mgN/100g. Kerang yang diberi es balok yang dihancurkan secara manual hari ke-0 13,00±0,48 mgN/100g; dan  hari ke-6 23,28±0,53 mgN/100g. Kerang menggunakan es curai hasil mesin penghancur es hari ke-0 adalah 13,21±0,66 mgN/100g; dan hari ke-6 yaitu 19.72±0,49 mgN/100g.   Protein content Anadara granosa shells are high enough to be prone to decay. The obstacle faced in the use of ice is the form of ice. The use of large, rough and sharp blocks of ice will cause physical damage. The applicable alternative is the Ice Breaker. This study aims to observe the quality and deterioration of proteins during cooling by comparing the manually destroyed ice cubes and ice cultivated from ice-breaking machines. The method is done with the Order of shellfish with the ice that is destroyed manually with ice crushing machine. Samples are stored for 6 days, and observed the content of protein and TVB-N every 3 days. The experimental design used a factorial design with 2 factors: manually destroyed ice and crushed ice crusher. The results of this study found the content of shell protein without impressive from day-0 14.04 ± 0.71%; and 6th day 9.27 ± 0.17%. The content of shellfish protein given ice beam which was manually destroyed on day 0 14.23 ± 0.46%; and the 6th day 11.68 ± 0.40%. The shell that used ice cubes from the 0 th day crusher was 13.91 ± 0.68%; and the 6th day is 14.28 ± 0.63%. Results of TVB-N content of shellfish without impression from day 0 13.11 ± 0.29 mgN / 100g; and day 6 64,97 ± 0.61mgN / 100g. Shellfish with ice blocks manually destroyed on day 0 13.00 ± 0.48 mgN / 100g; and day 6 23.28 ± 0.53 mgN / 100g. The shells using ice cubes from the 0 th day crusher were 13.21 ± 0.66 mgN / 100g; and day 6 is 19.72 ± 0.49 mgN / 100g.  Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2018-10-02 16:48:02 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/20532 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 13, No 2 (2018): SAINTEK PERIKANAN eng Copyright (c) 2018 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/23134 2020-05-09T10:31:53Z saintek:RSA

nmb a2200000Iu 4500 "191217 2019 eng " 2549-0885 1858-4748 dc EFEK PEMBERIAN DELTAMETHRIN TERHADAP EKSPRESI CD4 PADA IKAN KOI (Cyprinus carpio) YANG TERINFEKSI Myxobolus sp. (Effect of Deltamethrin on CD4 Expression in Koi Fish (Cyprinus Carpio) Infected by Myxobolus Sp.) Sumsanto, Muhammad Brawijaya University Yanuhar, Uun Hertika, Asus Maizar Suryanto Cyprinus carpio; Hematology; Erythrocytes, Leukocytes; Myxobolus sp.; Deltamethrin Parasit yang sering menyerang ikan koi adalah Myxobolus sp. Ikan yang terinfeksi Myxobolus sp. akan mengalami gejala klinis berupa nodul kemerahan dan pembengkakan pada organ insang. Penelitian bertujuan untuk mengetahui pengaruh pemberian deltamethrin terhadap ekspresi CD4 pada ikan koi (Cyprinus carpio) yang terinfeksi Myxobolus sp. Pada penelitian ini dibagi menjadi 4 perlakuan (A) Kontrol, perlakuan (B) ikan koi terinfeksi Myxobolus sp., perlakuan (C) ikan koi terinfeksi Myxobolus sp. dengan pemberian deltamethrin dosis 0,5 µl/g dan perlakuan (D) ikan koi terinfeksi Myxobolus sp. dengan pemberian deltamethrin dosis 1 µl/g. Kemudian dilakukan pengamatan eritrosit, leukosit dan immunohistokimia untuk mengetahui ekspresi CD4 pada usus. Berdasarkan hasil penelitian didapatkan eritrosit pada perlakuan (A) sebesar 500.000 sel/mm3, (B) sebesar 1.850.000 sel/mm3, (C) sebesar 1.110.000 sel/mm3 dan (D) sebesar 1.670.000 sel/mm3. Hasil pengamatan leukosit perlakuan (A) didapatkan sebesar 121.600 sel/mm3, (B) sebesar 333.550 sel/mm3, (C) sebesar 265.770 sel/mm3 dan (D) sebesar 145.620 sel/mm3. Berdasarkan hasil Imunohistokimia  didapatkan hasil pada perlakuan (A) nilai DAB sebesar 15,0%, (B) DAB sebesar 30,2%, (C) DAB sebesar 24,3% dan (D) DAB sebesar 19,2 %. Dari penelitian ini dapat disimpulkan bahwa pemberian deltamethrin berpengaruh terhadap eritrosit dan leukosit serta dapat menurunkan ekspresi CD4 sebagai respon imun pada ikan koi (Cyprinus carpio) yang terinfeksi Myxobolus sp.   Parasites that often attack koi are Myxobolus sp. Fish infected with Myxobolus sp. will experience clinical symptoms of red nodules and swelling in the gill organs. The study aimed to determine the effect of deltamethrin administration on CD4 expression in koi fish (Cyprinus carpio) infected with Myxobolus sp. In this study divided into 4 treatments (A) Control, treatment (B) koi fish infected with Myxobolus sp., Treatment (C) koi fish infected with Myxobolus sp. by treatment a dose of 0.5 µl / g deltamethrin and treatment (D) koi fish infected with Myxobolus sp. with the treatment of 1 µl / g of deltamethrin. Then erythrocytes, leukocytes and immunohistochemistry were observed to determine CD4 expression in the intestine. Based on the results of the study obtained erythrocytes in treatment (A) of 500,000 cells / mm3, (B) of 1,850,000 cells / mm3, (C) of 1,110,000 cells / mm3 and (D) of 1,670,000 cells / mm3. Observation of leukocyte treatment (A) was obtained at 121,600 cells / mm3, (B) of 333,550 cells / mm3, (C) of 265,770 cells / mm3 and (D) of 145,620 cells / mm3. Based on the results of immunohistochemistry the results obtained in treatment (A) DAB value of 15.0%, (B) DAB of 30.2%, (C) DAB of 24.3% and (D) DAB of 19.2%. From this study it can be concluded that the administration of deltamethrin affects erythrocytes and leukocytes and can reduce CD4 expression as an immune response in koi fish (Cyprinus carpio) infected with Myxobolus sp. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2019-12-17 11:00:28 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/23134 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 15, No 2 (2019): SAINTEK PERIKANAN eng Copyright (c) 2019 SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/6851 2020-09-17T10:14:51Z saintek:RSA

nmb a2200000Iu 4500 "100222 2010 eng " 2549-0885 1858-4748 dc Construction of Jodang Trap Wall Puspito, Gondo Staf Pengajar pada Bagian Teknologi Alat Penangkapan Ikan Departemen Pemanfaatan Sumberdaya Perikanan, FPIK – IPB Fifty four jodang traps were operated in Palabuhanratu bay waters from November to December 2009. The objective was to get construction of jodang trap wall that productive and selective to catch mature babylon snails with shell length of p ≥ 4.27 cm. Slopes of trap wall were 30o, 40o and 50o. While, their meshes were 1.2 mm; 5.4 mm and 7.0 mm. Fishing operations were done 12 times with 3 hours soaking time for each fishing operation. Result showed that slopes of 30o and 40o with all meshes did not give significant change in number of mature snail catch. Construction of trap wall with slope of 50o and mesh of 5.4 mm was more productive and selective than those other contructions.   Key Word : Wall Construction, Jodang Trap, Slope, Mesh and Babylon Snail. Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro 2020-09-15 14:21:08 application/pdf https://ejournal.undip.ac.id/index.php/saintek/article/view/6851 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology; Vol 5, No 2 (2010): Jurnal Saintek Perikanan eng Copyright (c) 2020 Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

oai:ojs.ejournal.undip.ac.id:article/48159 2025-01-09T01:08:27Z saintek:RSA

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