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Models for an ecosystem approach to fisheries.











Plagányi, É.E. Models for an ecosystem approach to fisheries.FAO Fisheries Technical Paper. No. 477. Rome, FAO. 2007. 108p.


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    Fisheries management. 2. The ecosystem approach to fisheries. 2.1 Best practices in ecosystem modelling for informing an ecosystem approach to fisheries 2008
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    These guidelines were produced as an addition to the FAO Technical Guidelines for Responsible Fisheries No. 4, Suppl. 2 entitled Fisheries management. The ecosystem approach to fisheries (EAF). Applying EAF in management requires the application of scientific methods and tools that go beyond the single-species approaches that have been the main sources of scientific advice. These guidelines have been developed to assist users in the construction and application of ecosystem models for informing an EAF. It addresses all steps of the modelling process, encompassing scoping and specifying the model, implementation, evaluation and advice on how to present and use the outputs. The overall goal of the guidelines is to assist in ensuring that the best possible information and advice is generated from ecosystem models and used wisely in management.
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    Fisheries management. 2. The ecosystem approach to fisheries. 2.2 The human dimensions of the ecosystem approach to fisheries 2009
    These Guidelines have been developed in response to requests for further information on the practical adoption and application of the ecosystem approach to fisheries (EAF), with a special focus on its human dimensions. As implementation of EAF is a human pursuit and takes place in the context of societal goals and aspirations, the human forces at play need to be understood and considered – these include policies, legal frameworks, social structures, cultural values, economic principles , institutional processes and any other relevant form or expression of human behaviour. Human dimensions play four main roles in EAF: (1) social, economic and institutional objectives and factors are driving forces behind the need for EAF management; (2) the costs and benefits to individuals and to society of applying the EAF have social, economic and institutional impacts and implications; (3) the application of social, economic and institutional instruments are all crucial for succ essful implementation of the EAF; and (4) social, economic and institutional factors present in fishery systems can play either supporting or constraining roles in EAF implementation.
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    The complementary roles of single-species and ecosystem models in fisheries management. An example from a South-West Atlantic fishery. 2001
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    Increasing concerns about the ecosystem impacts of fishing activities have motivated the development of ecosystem management principles which prompt a critical examination of concepts, methods and tools used in fisheries assessment and management. One of the central questions for fisheries assessment is how to evaluate and communicate the consequences of alternative fishing policies to marine resources and ecosystems, and therefore, what type of modeling approach to be used to this end. Thi s work uses the fishery for the Brazilian sardine as a case study in the analysis of the roles of single-species and ecosystem models in the assessment and management of a capture fishery. Results of this analysis point at complementary roles of the two modeling approaches.

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