Fisheries-induced evolution of alternative male life history tactics in Coho salmon

Evolutionary Applications
Kyle A YoungLaura K Weir

Abstract

Fisheries-induced evolution (FIE) can result when harvest imposes artificial selection on variation in heritable phenotypic traits. While there is evidence for FIE, it remains difficult to disentangle the contributions of within-generation demographic adjustment, phenotypic plasticity, and genetic adaption to observed changes in life history traits. We present evidence for FIE using dozens of Coho salmon (Oncorhynchus kisutch) populations in which males adopt one of two age-invariant, heritable life history tactics: most mature as large three-year-old "hooknose" and typically fight for spawning opportunities, while some mature as small two-year-old "jacks" and fertilize eggs through sneaking. The closure of a fishery targeting three-year-old fish provided an experimental test of the prediction that fishery-imposed selection against hooknose males drives an evolutionary increase in the proportion of males adopting the jack tactic. The data support the prediction: 43 of 46 populations had higher jack proportions during than after the fishery. The data further suggest that changes in jack proportion were not solely the result of demographic adjustments to harvest. We suggest that systems where fisheries differentially exploit phen...Continue Reading

References

Oct 1, 1987·Heredity·T A Mousseau, D A Roff
Jul 6, 2002·Science·David O Conover, Stephan B Munch
Apr 3, 2004·Evolution; International Journal of Organic Evolution·Nadia Aubin-Horth, Julian J Dodson
Oct 9, 2007·Trends in Ecology & Evolution·Joseph L Tomkins, Wade Hazel
Nov 6, 2007·Trends in Ecology & Evolution·Anna Kuparinen, Juha Merilä
Feb 27, 2008·Proceedings of the National Academy of Sciences of the United States of America·Peter A Biro, John R Post
Feb 1, 1996·Trends in Ecology & Evolution·M R Gross
Jul 16, 2016·The American Naturalist·Laura K WeirJohn D Reynolds
Dec 13, 2016·Proceedings of the National Academy of Sciences of the United States of America·Anne Maria EikesetUlf Dieckmann
Jul 1, 1984·Evolution; International Journal of Organic Evolution·Stevan J Arnold, Michael J Wade
Jun 1, 1991·Evolution; International Journal of Organic Evolution·Trevor Price, Dolph Schluter
Oct 1, 1996·Evolution; International Journal of Organic Evolution·Dolph Schluter
Jun 1, 1994·Evolution; International Journal of Organic Evolution·Ian A Fleming, Mart R Gross

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Citations

Jul 21, 2020·Evolutionary Applications·Anne-Laure FerchaudMaren Wellenreuther

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Software Mentioned

lme4
R
Coho

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