1Aquaculture Study Program, Faculty of Agriculture, Universitas Bosowa, Indonesia
2Aquatic Resources Study Program , Institut Teknologi dan Bisnis Maritim Balik Diwa, Indonesia
3Urban and Regional Planning Study Program, Faculty of Engineering, Universitas Bosowa, Indonesia
4 Department of Chemical and Process Engineering, Faculty of Integrated Technologies, Universiti Brunei Darussalam, Brunei Darussalam
BibTex Citation Data :
@article{IK.IJMS72484, author = {Sri Mulyani and Indra cahyono and Batara Surya and Muhammad Ro’il Bilad}, title = {Optimizing Kappaphycus alvarezii Productivity Using Biofertilizer Derived from a Combination of Black Soldier Fly Larvae Frass and Seaweed}, journal = {ILMU KELAUTAN: Indonesian Journal of Marine Sciences}, volume = {31}, number = {3}, year = {2026}, keywords = {BSFF; Seaweed Cultivation; Specific Growth Rate; Carrageenan}, abstract = { Kappaphycus alvarezii is an important seaweed for various industries. Indonesia, as one of the largest producers, cultivates it extensively in South Sulawesi, particularly on Tanakeke Island. However, because the adoption of aquaculture technologies among local farmers remains limited, the quality and quantity of production are not yet optimal, making the use of biofertilizers one solution to increase cultivation yields. Biofertilizers are necessary because they are environmentally friendly and can be made from industrial waste to improve productivity. However, their effectiveness is not yet known, and the basic materials are very limited. Therefore, this study aims to evaluate the effectiveness of using biofertilizers made from black soldier fly frass (BSFF) and K. alvarezii in increasing the specific growth rate and carrageenan content of K. alvarezii. Water-quality parameters were also measured to support the interpretation of the experimental results. Samples were collected in Mallasoro Bay, South Sulawesi, and laboratory analysis were conducted at Pangkajene Pangkep Island State Polytechnic Laboratory. This research used four treatments: treatment A (BSFF-based biofertilizer), treatment B (K. alvarezii-based biofertilizer), treatment C (combination of BSFF and K. Alvarezii -based biofertilizer), and treatment D (control). The results showed that treatment C had the highest average specific growth rate of 5.41 ± 0.84%. Treatment C also had the highest carrageenan content of 56.61 ± 0.63%. This study highlights the potential of a combination of biofertilizer based on BSFF and seaweed as an environmentally friendly and cost-effective alternative to chemical fertilizers for increasing K. alvarezii cultivation productivity while utilizing BSFF waste. However, commercial use of these biofertilizer combinations requires further study. }, issn = {2406-7598}, pages = {219--228} doi = {10.14710/ik.ijms.31.3.219-228}, url = {https://ejournal.undip.ac.id/index.php/ijms/article/view/72484} }
Refworks Citation Data :
Kappaphycus alvarezii is an important seaweed for various industries. Indonesia, as one of the largest producers, cultivates it extensively in South Sulawesi, particularly on Tanakeke Island. However, because the adoption of aquaculture technologies among local farmers remains limited, the quality and quantity of production are not yet optimal, making the use of biofertilizers one solution to increase cultivation yields. Biofertilizers are necessary because they are environmentally friendly and can be made from industrial waste to improve productivity. However, their effectiveness is not yet known, and the basic materials are very limited. Therefore, this study aims to evaluate the effectiveness of using biofertilizers made from black soldier fly frass (BSFF) and K. alvarezii in increasing the specific growth rate and carrageenan content of K. alvarezii. Water-quality parameters were also measured to support the interpretation of the experimental results. Samples were collected in Mallasoro Bay, South Sulawesi, and laboratory analysis were conducted at Pangkajene Pangkep Island State Polytechnic Laboratory. This research used four treatments: treatment A (BSFF-based biofertilizer), treatment B (K. alvarezii-based biofertilizer), treatment C (combination of BSFF and K. Alvarezii-based biofertilizer), and treatment D (control). The results showed that treatment C had the highest average specific growth rate of 5.41 ± 0.84%. Treatment C also had the highest carrageenan content of 56.61 ± 0.63%. This study highlights the potential of a combination of biofertilizer based on BSFF and seaweed as an environmentally friendly and cost-effective alternative to chemical fertilizers for increasing K. alvarezii cultivation productivity while utilizing BSFF waste. However, commercial use of these biofertilizer combinations requires further study.
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