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Sustainable Management of Shrimp Trawl Fishery in Tonkin Gulf, Vietnam

Thanh Nguyen

Applied Economics Journal, 2011, vol. 18, issue 2, 65-81

Abstract: This 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.

Keywords: bioeconomic analysis; shrimp trawl fishery; fishery management; Vietnam (search for similar items in EconPapers)
JEL-codes: D24 H41 Q22 (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (2)

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