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A framework for evaluating management plans comprehensively ArchiMer
Trenkel, Verena; Rochet, Marie-joelle; Rice, Jake C..
We present a framework for evaluating fisheries management plans comprehensively, both rebuilding plans and others. The framework includes a first rapid appraisal of the likelihood that the plan will result in management meeting its objectives, and guides subsequent quantitative analyses of potential weaknesses in the proposed plan. The framework includes four steps: (i) evaluating if a set of management objectives, if achieved, would result in a sustainable fishery, (ii) using qualitative analysis of a bio-economic model to evaluate whether the set of stock management tactics might be capable of achieving the specified fisheries objectives, (iii) using empirical criteria derived from the literature to evaluate if other management measures in the plan...
Tipo: Text Palavras-chave: Loop analysis; Management strategy; Management strategy evaluation; Qualitative modelling; Stock rebuilding; Sustainability.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00198/30931/29363.pdf
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A new sward management strategy to mitigate the methane (CH4) emissions by grazing ruminants. Repositório Alice
SAVIAN, J. C.; SCHONS, R. M. T.; SCHNEIDER, E. A. N.; PENSO, J. F.; CAETANO, L. A. M.; MARCHI, D. E.; MEZZALIRA, J. C.; BERNDT, A.; BAYER, C.; Carvalho, P. C. F..
Tipo: Anais e Proceedings de eventos Palavras-chave: Management strategy; Mitigate; Grazing ruminants.; Methane; Sward..
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1050720
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Evaluation of the performance and robustness of VPA-based stock assessment and MSY-based management strategy to process error: the Atlantic bluefin tuna case study ArchiMer
Fromentin, Jean-marc; Kell, Laurence T.
An integrative simulation framework was built to evaluate the consequences of variability attributable to changes in carrying capacity or the stock’s migration pattern of Atlantic bluefin tuna on the ICCAT stock assessment and management procedures. We also evaluated the performances of stock assessment methods with respect to their ability to provide good estimates of MSY, FMSY and BMSY and tested the robustness of the current ICCAT management strategy to uncertainty about the true dynamics and historical exploitation levels. The results clearly indicate that the VPA performances were seriously impaired if the long-term variations in catches are due to changes in migration/availability. There is further considerable confounding between the underlying...
Tipo: Text Palavras-chave: Thunnus thynnus; Stock assessment; VPA; Biological reference points; MSY; Management strategy; Simulation model.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00192/30295/28786.pdf
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Reference points for predators will progress ecosystem‐based management of fisheries ArchiMer
Hill, Simeon L.; Hinke, Jefferson; Bertrand, Sophie; Fritz, Lowell; Furness, Robert W.; Ianelli, James N.; Murphy, Matthew; Oliveros‐ramos, Ricardo; Pichegru, Lorien; Sharp, Rowland; Stillman, Richard A.; Wright, Peter J.; Ratcliffe, Norman.
Ecosystem‐based management of fisheries aims to allow sustainable use of fished stocks while keeping impacts upon ecosystems within safe ecological limits. Both the FAO Code of Conduct for Responsible Fisheries and the Aichi Biodiversity Targets promote these aims. We evaluate implementation of ecosystem‐based management in six case‐study fisheries in which potential indirect impacts upon bird or mammal predators of fished stocks are well publicized and well studied. In particular, we consider the components needed to enable management strategies to respond to information from predator monitoring. Although such information is available in all case‐studies, only one has a reference point defining safe ecological limits for predators and none has a method to...
Tipo: Text Palavras-chave: Adaptive management; Aichi Biodiversity Targets; Ecosystem interactions; Indirect impacts; Management strategy; Precautionary approach.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00602/71400/69850.pdf
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