BIOECONOMIC ANALYSIS OF TIGER GROUPER (Epinephelus fuscoguttatus) AND HUMPBACK GROUPER (Cromileptes altivelis) COMMERCIAL CAGE AQUACULTURE IN INDONESIA

• Main Authors: Farok Afero, 艾飛洛
• Other Authors: Dr. Miao Sha
• Format: Others
• Language: en_US
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/67878723626229670066

博士 === 國立臺灣海洋大學 === 水產養殖學系 === 98 === This study presents an economic analysis of tiger and humpback groupers at different locations and production scales in Indonesia. The results highlight Bali incurs cumulative cash flow USD 30,086.25, net present value USD 17,095.68, B/C > 1 and the best location with regard profitability. Large-scale farming is economically viable enterprise with a 5 year projected cumulative cash of USD 64,340.63; a NPV of USD 36,981.98; a benefit cost ratio of 1.33; an internal rate of return of 157%; and a payback period of 0.57 year. Financial analysis of humpback grouper farming reveals all locations to be economically viable. The economic analysis of humpback grouper at different production scales highlight a positive cumulative cash and NPV, a B/C > 2, an internal rate of return > 300% and a payback period < 1 year. An increase stocking density in tiger grouper farming produces negative effect on feeding and reduces feed productivity. Management of increasing stocking density has negative effect on tiger grouper bioeconomic mechanism. Stocking larger fry size in humpback grouper farming triggers negative effect on fry productivity. Finally, management of stocking density and fry size in grouper farming has more space to improve in future to increase profitability.