BibTex Citation Data :
@article{IJFST44539, author = {Yesika Pramurdya and Ni Watiniasih and I Ketut Ginantra}, title = {POPULASI DAN RASIO POTENSI PEMIJAHAN IKAN CAKALANG (Katsuwonus Pelamis (Linnaeus, 1758)) DI PERAIRAN SELATAN BALI}, journal = {Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology}, volume = {18}, number = {4}, year = {2022}, keywords = {SPR, Stok, Populasi, Cakalang dan Perairan Selatan Bali}, abstract = { 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%). }, issn = {2549-0885}, doi = {10.14710/ijfst.18.4.%p}, url = {https://ejournal.undip.ac.id/index.php/saintek/article/view/44539} }
Refworks Citation Data :
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%).
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