Kindai University, Japan
The demand for yellowfin tuna (YFT) has been increased worldwide because of itsmultipurpose usage as raw and processed fish. This speciescomprises more than 60% of the total global tuna production. To meet its demand, fishermen have been captured from the wild stock to supply in the market, which has been affected the nature as well as the eco-system. Therefore, it is important to establish a sustainable aquaculture system for this species to ensure continuous supply to the fish market. It is necessary to establish a mass seedling production technology, improve the knowledge on early development and establish an artificial formulated feed, which are prerequisite for sustainable aquaculture for this species.However, the research activities on tuna species including YFT have not been progressed smoothly due to the difficulty to culture in the captivity. A series of research has been carried out in Achotines Laboratory, Los Santos, Panamain collaboration with Inter-American Tropical Tuna Commission (IATTC) and Autoridad de los Recursos Acuáticos de Panamá (ARAP). The activities include i) parent fish feeding protocol and nutrient composition of broodstock diet on the spawning performance, ii) changes in nutrients, gross energy and enzymes activity at the embryonic developmental stages and larvae, iii) prediction on somatic growth pattern from changes in RNA, DNA and protein synthesis at early stages, iv) investigation of the utility of artificial formulated feed by YFT juveniles.This review paper will provide a brief explanation on the aim of each activity followed by research methods and outcomes, and how those results have been contributed towards our final goal to establish a sustainable aquaculture system for this commercial important species.
Amal Biswas is an Associate Professor at the Aquaculture Research Institute of Kindai University, Japan. He has got his B Sc in Fisheries and Marine Resource Technology, and awarded Japanese Monbusho Scholarship to pursue Master and PhD study in the field of Aquatic Biosciences at the Graduate School of Fisheries Science, Tokyo University of Marine Science and Technology, Japan. After successfully finishing the postgraduate studies, Biswas was awarded Post-doctoral fellowship from CoE (Center of Excellence) program of Kindai University, Japan. He has published more than 150 papers in journals, books and conference proceedings, including about 50 papers in International Journals. He has also published several chapters in books including each in both Nova Science Publishers Inc. and Wiley Blackwell Science, and articles in newspaper and magazines. He is a member of different academic committee of Kindai University as well as different professional international society. He is a potential reviewer of several national and international journals.Biswas has been interviewed by live TV program and international radio program. He has received couple of awards for oral and poster presentation. Recently Biswas received the Japanese Award of Young Scientist. His research activities cover diverse fields including fish nutrition and aquaculture, fish physiology and reproductive biology.