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来源类型Article
规范类型其他
DOI10.1093/icesjms/fst077
Can fisheries-induced evolution shift reference points for fisheries management?
Heino M; Baulier L; Boukal DS; Ernande B; Johnston FD; Mollet FM; Arlinghaus R; Dankel DJ
发表日期2013
出处ICES Journal of Marine Science 70 (4): 707-721
出版年2013
语种英语
摘要Biological reference points are important tools for fisheries management. Reference points are not static, but may 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.
主题Evolution and Ecology (EEP)
关键词Biological reference points Fisheries management Fisheries-induced evolution Population dynamics Precautionary approach Uncertainty
URLhttp://pure.iiasa.ac.at/id/eprint/10375/
来源智库International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/129710
推荐引用方式
GB/T 7714
Heino M,Baulier L,Boukal DS,et al. Can fisheries-induced evolution shift reference points for fisheries management?. 2013.
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