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The Worldwide Crisis in Fisheries: Economic Models and Human Behavior

Published on Jan 1, 2006
Colin W. Clark46
Estimated H-index: 46
Abstract
1. Perspective 2. Dynamic bioeconomic models 3. Investment and overcapacity 4. Fisheries management 5. Risk assessment and risk management 6. Case studies 7. Changing direction Appendix Bibliography Index.
  • References (0)
  • Citations (136)
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Abstract The increasing technological efficiency of harvesting equipment has been identified as one of the main causes of overcapacity and overexploitation of natural resources. In this paper, a formal model is developed which studies the effects of technological efficiency as an endogenous variable within a bioeconomic system. We model capital investments in a fishery, where investment decisions are made less frequently than the allocation of variable inputs. We study how the possibility to inv...
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Using a generalist predator–prey system, we describe a theoretical aspect of economic and sustainability issues in the context of a complex ecosystem of Sundarbans coastal area, with a larger part located in Bangladesh and a smaller part in India. Predator species are considered only for the purpose of ecotourism and prey species are subject to fishing only. First we have studied the relevance of tourist entrance fee on total income gained from ecotourism and fishing. It is found that the total ...
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As marine ecosystems are under pressure worldwide, many scientists and stakeholders advocate the use of ecosystem-based approaches for fishery management. In particular, management policies are expected to account for the multispecies nature of fisheries. However, numerous fisheries management plans remain based on single-species concepts, such as maximum sustainable yield (MSY) and maximum economic yield (MEY), that respectively aim at maximizing catches or profits of single species or stocks. ...
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Abstract Mathematical models of production and consumption are useful in devising policies for sustainable management of renewable resources. Analysis of simple but not too naive models of resource dynamics can provide initial or supplementary insights in formulating comprehensive policies. In these models, density-dependence of resources, nonlinearities in consumption schemes, and uncertainties in parameters are essential to be considered to account for the temporal complex dynamics of the reso...
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Abstract The idea of institutional diagnostics has sparked considerable interest over the last twenty years, especially among those seeking to assess how architectural choices can affect the performance of institutions established to address environmental issues. But so far, this appealing idea has not developed into a practice that is useful in making choices regarding the architecture of regimes addressing needs for governance arising at various levels of social organization. I argue that this...
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