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Sustainable Management of Shrimp Trawl Fishery in Tonkin Gulf, Vietnam

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  • Thanh Viet Nguyen

    ()
    (Faculty of Development Economics, VNU University of Economics and Business, Hanoi, Vietnam)

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.

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Bibliographic Info

Article 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)
Pages: 65-81

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Handle: RePEc:aej:apecjn:v:18:y:2011:i:2:p:65-81

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Related research

Keywords: bioeconomic analysis; shrimp trawl fishery; fishery management; Vietnam;

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  1. Clark, Colin W. & Munro, Gordon R., 1975. "The economics of fishing and modern capital theory: A simplified approach," Journal of Environmental Economics and Management, Elsevier, vol. 2(2), pages 92-106, December.
  2. Tom Kompas et. al., 2008. "Maximizing Profits and Conserving Stocks in the Australian Northern Prawn Fishery," International and Development Economics Working Papers idec08-04, International and Development Economics.
  3. 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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