Economics of biodiversity and sustainable fisheries management |
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Authors: | Wisdom Akpalu |
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Institution: | Department of History, Economics and Politics, Farmingdale State College, State University of New York, 2350 Broadhollow RD, NY 11735, USA |
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Abstract: | Marine ecosystems are complex, and many marine species are ecologically interdependent. As a result, losing a species could produce a cascading effect on other species. Fishery scientists advocate an ecosystem-based approach to fishery management to meet long-term sustainable goals. This paper models the complex interrelationships among species and the relationship between biomass growth and phenotypic diversity. We found that the equilibrium stock and catch/yield levels are overestimated when the diversity is not accounted for. Consequently, if species are diverse, fishery policy based on a single fishery management could overestimate catch potentials and potentially results in biological overfishing and stock collapse. |
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Keywords: | Phenotypic variance Average phenotype Biodiversity Fishing policy Stock collapse |
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