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Provedor de dados:  ArchiMer
País:  France
Título:  Can fisheries-induced evolution shift reference points for fisheries management?
Autores:  Heino, Mikko
Baulier, Loic
Boukal, David S.
Ernande, Bruno
Johnston, Fiona D.
Mollet, Fabian M.
Pardoe, Heidi
Therkildsen, Nina O.
Uusi-heikkila, Silva
Vainikka, Anssi
Arlinghaus, Robert
Dankel, Dorothy J.
Dunlop, Erin S.
Eikeset, Anne Maria
Enberg, Katja
Engelhard, Georg
Jorgensen, Christian
Laugen, Ane
Matsumura, Shuichi
Nussle, Sebastien
Urbach, Davnah
Whitlock, Rebecca
Rijnsdorp, Adriaan D.
Dieckmann, Ulf
Data:  2013-07
Ano:  2013
Palavras-chave:  Biological reference points
Fisheries-induced evolution
Fisheries management
Population dynamics
Precautionary approach
Resumo:  Biological reference points are important tools for fisheries management. Reference points are not static, butmay change when a population's environment or the population itself changes. Fisheries-induced evolution is one mechanism that can alter population characteristics, leading to "shifting" reference points by modifying the underlying biological processes or by changing the perception of a fishery system. The former causes changes in "true" reference points, whereas the latter is caused by changes in the yardsticks used to quantify a system's status. Unaccounted shifts of either kind imply that reference points gradually lose their intended meaning. This can lead to increased precaution, which is safe, but potentially costly. Shifts can also occur in more perilous directions, such that actual risks are greater than anticipated. Our qualitative analysis suggests that all commonly used reference points are susceptible to shifting through fisheries-induced evolution, including the limit and "precautionary" reference points for spawning-stock biomass, B-lim and B-pa, and the target reference point for fishing mortality, F-0.1. Our findings call for increased awareness of fisheries-induced changes and highlight the value of always basing reference points on adequately updated information, to capture all changes in the biological processes that drive fish population dynamics.
Tipo:  Text
Idioma:  Inglês

Editor:  Oxford Univ Press
Formato:  application/pdf
Fonte:  Ices Journal Of Marine Science (1054-3139) (Oxford Univ Press), 2013-07 , Vol. 70 , N. 4 , P. 707-721
Direitos:  2013 International Council for the Exploration of the Sea. Published by Oxford University Press. All rights reserved. For Permissions, please email:

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