Utilize este identificador para referenciar este registo: https://recil.grupolusofona.pt/handle/10437/1109
Título: The East Atlantic Bluefin Tuna Fisheries: Stock Collapse or Recovery?
Autores: Brasão, Ana
Bjorndal, Trond
Palavras-chave: ECONOMIC MODEL
MODELOS ECONÓMICOS
GESTÃO DE RECURSOS PESQUEIROS
FISHERIES RESOURCES MANAGEMENT
GESTÃO
MANAGEMENT
OTIMIZAÇÃO
OPTIMIZATION
Data: 2006
Editora: The University of Chicago Press
Resumo: A discrete time, multi-gear, and age structured bio-economic model is developed for the East Atlantic bluefin tuna fisheries, a paradigmatic example of the difficulties faced in managing highly migratory fish stocks. The model is used to analyse alternative management strategies for the Regional Fisheries Management Organisation (RFMO) managing this fishery, and to investigate some of the policy implications. For the various scenarios, the optimal stock level varies between 500–800,000 tonnes, which compares with a stock level of 150,000 tonnes in 1995. In other words, there is a very strong case for rebuilding the stock. Moreover, the sustainability of the stock is threatened unless a recovery programme is implemented; indeed, the alternative may be stock collapse. Second, to rebuild the stock, Draconian measures are called for: either outright moratoria over fairly lengthy periods, or possibly a more gradual approach to steady state given by a Total Allowable Catch (TAC) at a low level for an extended period of time. Third, the cost of inefficient gear structure is very high indeed.
Descrição: Marine Resource Economics
URI: http://hdl.handle.net/10437/1109
ISSN: 0738-1360
Aparece nas colecções:CIEG - Artigos de Revistas Internacionais com Arbitragem Científica

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