Can fisheries-induced evolution shift reference points for fisheries management?

Heino, Mikko, Baulier, Loїc, Boukal, David S., Ernande, Bruno, Johnston, Fiona D., Mollet, Fabian M., Pardoe, Heidi, Therkildsen, Nina O., Uusi-Heikkilä, Silva, Vainikka, Anssi, Arlinghaus, Robert, Dankel, Dorothy J., Dunlop, Erin S., Eikeset, Anne Marie, Enberg, Katya, Engelhard, Georg H., Jørgensen, Christian, Laugen, Ane T., Matsumura, Shuichi, Nusslé, Sébastien, Urbach, Davnah, Whitlock, Rebecca, Rijnsdorp, Adriaan D. and Dieckmann, Ulf (2013) Can fisheries-induced evolution shift reference points for fisheries management? ICES Journal of Marine Science, 70 (4). pp. 707-721. ISSN 1054-3139

Full text not available from this repository. (Request a copy)

Abstract

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 and B, and the target reference point for fishing mortality, F. 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.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Environmental Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Collaborative Centre for Sustainable Use of the Seas
Related URLs:	http://www.scopus.com/inward/record.url?...
Depositing User:	Pure Connector
Date Deposited:	12 Nov 2014 16:56
Last Modified:	21 Oct 2022 00:16
URI:	https://ueaeprints.uea.ac.uk/id/eprint/50794
DOI:	10.1093/icesjms/fst077

Actions (login required)

View Item