Consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis
Abstract Reproductive behaviour and mating system complexity may influence fisheries‐induced evolution. Mate choice and intrasexual competition might favour late‐, large‐maturing genotypes in contrast to the selection imposed by many fisheries. Here, we simulate changes to the mean and variance in b...
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crwiley:10.1111/j.1752-4571.2007.00009.x 2024-04-28T08:13:04+00:00 Consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis Hutchings, Jeffrey A. Rowe, Sherrylynn 2008 http://dx.doi.org/10.1111/j.1752-4571.2007.00009.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1752-4571.2007.00009.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1752-4571.2007.00009.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Evolutionary Applications volume 1, issue 1, page 129-136 ISSN 1752-4571 1752-4571 General Agricultural and Biological Sciences Genetics Ecology, Evolution, Behavior and Systematics journal-article 2008 crwiley https://doi.org/10.1111/j.1752-4571.2007.00009.x 2024-04-08T06:56:16Z Abstract Reproductive behaviour and mating system complexity may influence fisheries‐induced evolution. Mate choice and intrasexual competition might favour late‐, large‐maturing genotypes in contrast to the selection imposed by many fisheries. Here, we simulate changes to the mean and variance in body size of Atlantic cod ( Gadus morhua ) concomitant with increased fishing intensity. Comparing selection differentials ( S ) for length under the assumptions that size does and does not affect reproductive success, we find that the strength of selection for smaller body size associated with increased fishing pressure depends on: (i) the initial variance in body size; (ii) changes to the variance in size with increasing fishing intensity; and (iii) the influence of size on reproductive success. If the initial variability in length is sufficiently high and its coefficient of variation (CV) increases with fishing intensity, the predicted evolutionary shift towards smaller size generated by fishing is less than that expected under the assumption that reproductive success is independent of size. However, if size influences reproduction and if the CV in body size declines as fishing pressure increases, a trend that may be characteristic of many intensively exploited populations, the strength of selection for smaller size is predicted to be comparatively rapid. We conclude that fisheries‐induced evolution can be influenced by changes to the mean and variance of traits under sexual selection, and that the benefits of maintaining broad phenotypic variability in traits such as body size may be greater than previously thought. Article in Journal/Newspaper atlantic cod Gadus morhua Wiley Online Library Evolutionary Applications 1 1 129 136 |
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Wiley Online Library |
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crwiley |
language |
English |
topic |
General Agricultural and Biological Sciences Genetics Ecology, Evolution, Behavior and Systematics |
spellingShingle |
General Agricultural and Biological Sciences Genetics Ecology, Evolution, Behavior and Systematics Hutchings, Jeffrey A. Rowe, Sherrylynn Consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis |
topic_facet |
General Agricultural and Biological Sciences Genetics Ecology, Evolution, Behavior and Systematics |
description |
Abstract Reproductive behaviour and mating system complexity may influence fisheries‐induced evolution. Mate choice and intrasexual competition might favour late‐, large‐maturing genotypes in contrast to the selection imposed by many fisheries. Here, we simulate changes to the mean and variance in body size of Atlantic cod ( Gadus morhua ) concomitant with increased fishing intensity. Comparing selection differentials ( S ) for length under the assumptions that size does and does not affect reproductive success, we find that the strength of selection for smaller body size associated with increased fishing pressure depends on: (i) the initial variance in body size; (ii) changes to the variance in size with increasing fishing intensity; and (iii) the influence of size on reproductive success. If the initial variability in length is sufficiently high and its coefficient of variation (CV) increases with fishing intensity, the predicted evolutionary shift towards smaller size generated by fishing is less than that expected under the assumption that reproductive success is independent of size. However, if size influences reproduction and if the CV in body size declines as fishing pressure increases, a trend that may be characteristic of many intensively exploited populations, the strength of selection for smaller size is predicted to be comparatively rapid. We conclude that fisheries‐induced evolution can be influenced by changes to the mean and variance of traits under sexual selection, and that the benefits of maintaining broad phenotypic variability in traits such as body size may be greater than previously thought. |
format |
Article in Journal/Newspaper |
author |
Hutchings, Jeffrey A. Rowe, Sherrylynn |
author_facet |
Hutchings, Jeffrey A. Rowe, Sherrylynn |
author_sort |
Hutchings, Jeffrey A. |
title |
Consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis |
title_short |
Consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis |
title_full |
Consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis |
title_fullStr |
Consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis |
title_full_unstemmed |
Consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis |
title_sort |
consequences of sexual selection for fisheries‐induced evolution: an exploratory analysis |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1111/j.1752-4571.2007.00009.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1752-4571.2007.00009.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1752-4571.2007.00009.x |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Evolutionary Applications volume 1, issue 1, page 129-136 ISSN 1752-4571 1752-4571 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1752-4571.2007.00009.x |
container_title |
Evolutionary Applications |
container_volume |
1 |
container_issue |
1 |
container_start_page |
129 |
op_container_end_page |
136 |
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1797579710335549440 |