Harvest selection on Atlantic cod behavioral traits: implications for spatial management
Abstract Harvesting wild populations may contrast or reinforce natural agents of selection and potentially cause evolutionary changes in life‐history traits such as growth and maturation. Harvest selection may also act on behavioral traits, although this field of research has so far received less at...
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crwiley:10.1002/ece3.244 2024-09-09T19:29:43+00:00 Harvest selection on Atlantic cod behavioral traits: implications for spatial management Olsen, Esben Moland Heupel, Michelle R. Simpfendorfer, Colin A. Moland, Even 2012 http://dx.doi.org/10.1002/ece3.244 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.244 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.244 en eng Wiley http://creativecommons.org/licenses/by-nc/3.0/ Ecology and Evolution volume 2, issue 7, page 1549-1562 ISSN 2045-7758 2045-7758 journal-article 2012 crwiley https://doi.org/10.1002/ece3.244 2024-07-04T04:31:22Z Abstract Harvesting wild populations may contrast or reinforce natural agents of selection and potentially cause evolutionary changes in life‐history traits such as growth and maturation. Harvest selection may also act on behavioral traits, although this field of research has so far received less attention. We used acoustic tags and a network of receivers to monitor the behavior and fate of individual Atlantic cod ( Gadus morhua , N = 60) in their natural habitat on the Norwegian Skagerrak coast. Fish with a strong diel vertical migration, alternating between shallow‐ and deep‐water habitats, had a higher risk of being captured in the fishery (traps, gillnet, hand line) as compared to fish that stayed in deeper water. There was also a significant negative correlation between fish size (30–66 cm) and the magnitude of diel vertical migration. Natural selection on behavior was less clear, but tended to favor fish with a large activity space. On a monthly time scale we found significant repeatabilities for cod behavior, meaning that individual characteristics tended to persist and therefore may be termed personality traits. We argue that an evolutionary approach to fisheries management should consider fish behavior. This would be of particular relevance for spatial management actions such as marine reserve design. Article in Journal/Newspaper atlantic cod Gadus morhua Wiley Online Library Ecology and Evolution 2 7 1549 1562 |
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English |
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Abstract Harvesting wild populations may contrast or reinforce natural agents of selection and potentially cause evolutionary changes in life‐history traits such as growth and maturation. Harvest selection may also act on behavioral traits, although this field of research has so far received less attention. We used acoustic tags and a network of receivers to monitor the behavior and fate of individual Atlantic cod ( Gadus morhua , N = 60) in their natural habitat on the Norwegian Skagerrak coast. Fish with a strong diel vertical migration, alternating between shallow‐ and deep‐water habitats, had a higher risk of being captured in the fishery (traps, gillnet, hand line) as compared to fish that stayed in deeper water. There was also a significant negative correlation between fish size (30–66 cm) and the magnitude of diel vertical migration. Natural selection on behavior was less clear, but tended to favor fish with a large activity space. On a monthly time scale we found significant repeatabilities for cod behavior, meaning that individual characteristics tended to persist and therefore may be termed personality traits. We argue that an evolutionary approach to fisheries management should consider fish behavior. This would be of particular relevance for spatial management actions such as marine reserve design. |
format |
Article in Journal/Newspaper |
author |
Olsen, Esben Moland Heupel, Michelle R. Simpfendorfer, Colin A. Moland, Even |
spellingShingle |
Olsen, Esben Moland Heupel, Michelle R. Simpfendorfer, Colin A. Moland, Even Harvest selection on Atlantic cod behavioral traits: implications for spatial management |
author_facet |
Olsen, Esben Moland Heupel, Michelle R. Simpfendorfer, Colin A. Moland, Even |
author_sort |
Olsen, Esben Moland |
title |
Harvest selection on Atlantic cod behavioral traits: implications for spatial management |
title_short |
Harvest selection on Atlantic cod behavioral traits: implications for spatial management |
title_full |
Harvest selection on Atlantic cod behavioral traits: implications for spatial management |
title_fullStr |
Harvest selection on Atlantic cod behavioral traits: implications for spatial management |
title_full_unstemmed |
Harvest selection on Atlantic cod behavioral traits: implications for spatial management |
title_sort |
harvest selection on atlantic cod behavioral traits: implications for spatial management |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/ece3.244 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.244 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.244 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Ecology and Evolution volume 2, issue 7, page 1549-1562 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by-nc/3.0/ |
op_doi |
https://doi.org/10.1002/ece3.244 |
container_title |
Ecology and Evolution |
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2 |
container_issue |
7 |
container_start_page |
1549 |
op_container_end_page |
1562 |
_version_ |
1809898837812183040 |