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 pri...
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ftiiasalaxenburg:oai:pure.iiasa.ac.at:10239 2023-05-15T15:38:58+02:00 Comparing rates of contemporary evolution in life-history traits for exploited fish stocks Devine, J.A. Wright, P.J. Pardoe, H.E. Heino, M. 2012 text https://pure.iiasa.ac.at/id/eprint/10239/ https://pure.iiasa.ac.at/id/eprint/10239/1/IR-12-036.pdf en eng IR-12-036 https://pure.iiasa.ac.at/id/eprint/10239/1/IR-12-036.pdf Devine, J.A., Wright, P.J., Pardoe, H.E., & Heino, M. <https://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. IIASA Interim Report. IIASA, Laxenburg, Austria: IR-12-036 Monograph NonPeerReviewed 2012 ftiiasalaxenburg 2023-04-07T14:49:41Z 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 primarily size at maturation as measured by probabilistic maturation reaction norm midpoints for fish stocks from the Pacific, North Atlantic, Barents Sea, Eastern Baltic, and the North Sea. Rates in haldanes for 23 stocks ranged from -2.2-0.9 and from 0.5-153 in kdarwins 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. As management strategies should be based upon precautionary principles, the effect of changing traits must be integrated into the fisheries assessment process. Book Barents Sea North Atlantic IIASA PURE (International Institute of Applied Systems Analysis: PUblications REpository) Barents Sea Pacific |
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IIASA PURE (International Institute of Applied Systems Analysis: PUblications REpository) |
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ftiiasalaxenburg |
language |
English |
description |
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 primarily size at maturation as measured by probabilistic maturation reaction norm midpoints for fish stocks from the Pacific, North Atlantic, Barents Sea, Eastern Baltic, and the North Sea. Rates in haldanes for 23 stocks ranged from -2.2-0.9 and from 0.5-153 in kdarwins 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. As management strategies should be based upon precautionary principles, the effect of changing traits must be integrated into the fisheries assessment process. |
format |
Book |
author |
Devine, J.A. Wright, P.J. Pardoe, H.E. Heino, M. |
spellingShingle |
Devine, J.A. Wright, P.J. Pardoe, H.E. 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.E. 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 |
IR-12-036 |
publishDate |
2012 |
url |
https://pure.iiasa.ac.at/id/eprint/10239/ https://pure.iiasa.ac.at/id/eprint/10239/1/IR-12-036.pdf |
geographic |
Barents Sea Pacific |
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Barents Sea Pacific |
genre |
Barents Sea North Atlantic |
genre_facet |
Barents Sea North Atlantic |
op_relation |
https://pure.iiasa.ac.at/id/eprint/10239/1/IR-12-036.pdf Devine, J.A., Wright, P.J., Pardoe, H.E., & Heino, M. <https://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. IIASA Interim Report. IIASA, Laxenburg, Austria: IR-12-036 |
_version_ |
1766370399377948672 |