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Sustainable Management of Shrimp Trawl Fishery in Tonkin Gulf, Vietnam |
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| รหัสดีโอไอ | |
| Creator | Thanh Viet Nguyen |
| Title | Sustainable Management of Shrimp Trawl Fishery in Tonkin Gulf, Vietnam |
| Publisher | Center for Applied Economics Research (CAER), Faculty of Economics, Kasetsart University |
| Publication Year | 2554 |
| Journal Title | Applied Economics Journal |
| Journal Vol. | 2 |
| Journal No. | 18 |
| Page no. | p:65-81 |
| Keyword | bioeconomic analysis, shrimp trawl fishery, fishery management, Vietnam |
| ISSN | 0858-9291 |
| 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. |
