Sustainable Management of Shrimp Trawl Fishery in Tonkin Gulf, Vietnam
AbstractThis study investigates the sustainability of shrimp stock in the trawl fishery in the Tonkin Gulf, Vietnam. It is a small scale and multi-species fishery. The Verhulst-Schaefer and Gompertz-Fox surplus production models are applied. There are two shrimp spawning seasons in a year in the Gulf. Therefore, in this study, the surplus production models, associated to catch calendar and effort data, are applied for a half-year time interval. The results indicate that the fishing effort should be reduced by roughly 12-44% to achieve the maximum sustainable yield and 46-61% to reach the maximum economic yield. With a social discount rate of 10%, the effort should decrease by around 45-56% to achieve the optimal yield. The entry tax should be 92-279 USD/month/boat to achieve the maximum sustainable yield and 160-314 USD/month/boat to attain the maximum economic yield.
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Bibliographic InfoArticle provided by Kasetsart University, Faculty of Economics, Center for Applied Economic Research in its journal Applied Economics Journal.
Volume (Year): 18 (2011)
Issue (Month): 2 (December)
bioeconomic analysis; shrimp trawl fishery; fishery management; Vietnam;
Find related papers by JEL classification:
- D24 - Microeconomics - - Production and Organizations - - - Production; Cost; Capital; Capital, Total Factor, and Multifactor Productivity; Capacity
- H41 - Public Economics - - Publicly Provided Goods - - - Public Goods
- Q22 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Fishery
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- Eide, Arne & Skjold, Frode & Olsen, Frank & Flaaten, Ola, 2003. "Harvest Functions: The Norwegian Bottom Trawl Cod Fisheries," Marine Resource Economics, Marine Resources Foundation, vol. 18(1).
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- R. Quentin Grafton & Tom Kompas & Long Chu & Nhu Che, 2010. "Maximum economic yield," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 54(3), pages 273-280, 07.
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