Comparing rates of contemporary evolution in life-history traits for exploited fish stocks
Trait evolution over time periods spanning generations, not millennia, is increasingly observed to be above the natural baseline in populations experiencing human-induced perturbations. We investigated the relative speed of trait change by comparing rates of evolution in haldanes and darwins for siz...
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ftiiasalaxendare:oai:pure.iiasa.ac.at:9954 2023-05-15T15:38:57+02:00 Comparing rates of contemporary evolution in life-history traits for exploited fish stocks Devine, J.A. Wright, P.J. Pardoe, H. Heino, M. 2012-06 http://pure.iiasa.ac.at/id/eprint/9954/ unknown NRC Research Press Devine, J.A., Wright, P.J., Pardoe, H., & Heino, M. <http://pure.iiasa.ac.at/view/iiasa/122.html> orcid:0000-0003-2928-3940 (2012). Comparing rates of contemporary evolution in life-history traits for exploited fish stocks. Canadian Journal of Fisheries and Aquatic Sciences 69 (6) 1105-1120. 10.1139/f2012-047 <https://doi.org/10.1139/f2012-047>. Article PeerReviewed 2012 ftiiasalaxendare 2022-04-15T12:34:02Z Trait evolution over time periods spanning generations, not millennia, is increasingly observed to be above the natural baseline in populations experiencing human-induced perturbations. We investigated the relative speed of trait change by comparing rates of evolution in haldanes and darwins for size at maturation as measured by probabilistic maturation reaction norm midpoints for fish stocks from the Pacific Ocean, North Atlantic, Barents Sea, eastern Baltic Sea, and the North Sea. Rates in haldanes for 23 stocks ranged from -2.2 to 0.9 and from 0.5 to 153 in kilodarwins for 26 stocks. The highest rates of evolution corresponded to the most heavily exploited stocks; rates slowed after moratoria were introduced. The estimated rates in fish life-history characteristics were comparable to other examples of human-induced evolution and faster than naturally induced rates. Stocks with high growth showed slower evolutionary change, even under high mortality, suggesting that compensatory somatic growth can slow the rate of trait evolution. Regardless of whether trait changes are due to exploitation or environmental factors, the costs of ignoring trait evolution are high. Management strategies should be based upon precautionary principles; therefore, the effect of changing traits must be integrated into the fisheries assessment process. Article in Journal/Newspaper Barents Sea North Atlantic IIASA DARE (Data Repository of the International Institute of Applied Systems Analysis) Barents Sea Pacific |
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IIASA DARE (Data Repository of the International Institute of Applied Systems Analysis) |
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Trait evolution over time periods spanning generations, not millennia, is increasingly observed to be above the natural baseline in populations experiencing human-induced perturbations. We investigated the relative speed of trait change by comparing rates of evolution in haldanes and darwins for size at maturation as measured by probabilistic maturation reaction norm midpoints for fish stocks from the Pacific Ocean, North Atlantic, Barents Sea, eastern Baltic Sea, and the North Sea. Rates in haldanes for 23 stocks ranged from -2.2 to 0.9 and from 0.5 to 153 in kilodarwins for 26 stocks. The highest rates of evolution corresponded to the most heavily exploited stocks; rates slowed after moratoria were introduced. The estimated rates in fish life-history characteristics were comparable to other examples of human-induced evolution and faster than naturally induced rates. Stocks with high growth showed slower evolutionary change, even under high mortality, suggesting that compensatory somatic growth can slow the rate of trait evolution. Regardless of whether trait changes are due to exploitation or environmental factors, the costs of ignoring trait evolution are high. Management strategies should be based upon precautionary principles; therefore, the effect of changing traits must be integrated into the fisheries assessment process. |
format |
Article in Journal/Newspaper |
author |
Devine, J.A. Wright, P.J. Pardoe, H. Heino, M. |
spellingShingle |
Devine, J.A. Wright, P.J. Pardoe, H. Heino, M. Comparing rates of contemporary evolution in life-history traits for exploited fish stocks |
author_facet |
Devine, J.A. Wright, P.J. Pardoe, H. Heino, M. |
author_sort |
Devine, J.A. |
title |
Comparing rates of contemporary evolution in life-history traits for exploited fish stocks |
title_short |
Comparing rates of contemporary evolution in life-history traits for exploited fish stocks |
title_full |
Comparing rates of contemporary evolution in life-history traits for exploited fish stocks |
title_fullStr |
Comparing rates of contemporary evolution in life-history traits for exploited fish stocks |
title_full_unstemmed |
Comparing rates of contemporary evolution in life-history traits for exploited fish stocks |
title_sort |
comparing rates of contemporary evolution in life-history traits for exploited fish stocks |
publisher |
NRC Research Press |
publishDate |
2012 |
url |
http://pure.iiasa.ac.at/id/eprint/9954/ |
geographic |
Barents Sea Pacific |
geographic_facet |
Barents Sea Pacific |
genre |
Barents Sea North Atlantic |
genre_facet |
Barents Sea North Atlantic |
op_relation |
Devine, J.A., Wright, P.J., Pardoe, H., & Heino, M. <http://pure.iiasa.ac.at/view/iiasa/122.html> orcid:0000-0003-2928-3940 (2012). Comparing rates of contemporary evolution in life-history traits for exploited fish stocks. Canadian Journal of Fisheries and Aquatic Sciences 69 (6) 1105-1120. 10.1139/f2012-047 <https://doi.org/10.1139/f2012-047>. |
_version_ |
1766370384508092416 |