Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency
While the stocking of captive-bred fish has been occurring for decades and has had substantial immediate genetic and evolutionary impacts on wild populations, its long-term consequences have only been weakly investigated. Here, we conducted a spatiotemporal analysis of 1428 Atlantic salmon sampled f...
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ftarchimer:oai:archimer.ifremer.fr:25271 2023-05-15T15:30:28+02:00 Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency Perrier, Charles Guyomard, Rene Bagliniere, Jean-luc Nikolic, Natacha Evanno, Guillaume 2013-07 application/pdf https://archimer.ifremer.fr/doc/00141/25271/23328.pdf https://doi.org/10.1002/ece3.629 https://archimer.ifremer.fr/doc/00141/25271/ eng eng Wiley-blackwell https://archimer.ifremer.fr/doc/00141/25271/23328.pdf doi:10.1002/ece3.629 https://archimer.ifremer.fr/doc/00141/25271/ 2013 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited info:eu-repo/semantics/openAccess restricted use CC-BY Ecology And Evolution (2045-7758) (Wiley-blackwell), 2013-07 , Vol. 3 , N. 7 , P. 2334-2349 Conservation population genetics Salmo salar stocking temporal stability text Publication info:eu-repo/semantics/article 2013 ftarchimer https://doi.org/10.1002/ece3.629 2021-09-23T20:23:12Z While the stocking of captive-bred fish has been occurring for decades and has had substantial immediate genetic and evolutionary impacts on wild populations, its long-term consequences have only been weakly investigated. Here, we conducted a spatiotemporal analysis of 1428 Atlantic salmon sampled from 1965 to 2006 in 25 populations throughout France to investigate the influence of stocking on the neutral genetic structure in wild Atlantic salmon (Salmo salar) populations. On the basis of the analysis of 11 microsatellite loci, we found that the overall genetic structure among populations dramatically decreased over the period studied. Admixture rates among populations were highly variable, ranging from a nearly undetectable contribution from donor stocks to total replacement of the native gene pool, suggesting extremely variable impacts of stocking. Depending on population, admixture rates either increased, remained stable, or decreased in samples collected between 1998 and 2006 compared to samples from 1965 to 1987, suggesting either rising, long-lasting or short-term impacts of stocking. We discuss the potential mechanisms contributing to this variability, including the reduced fitness of stocked fish and persistence of wild locally adapted individuals. Article in Journal/Newspaper Atlantic salmon Salmo salar Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Ecology and Evolution 3 7 2334 2349 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Conservation population genetics Salmo salar stocking temporal stability |
spellingShingle |
Conservation population genetics Salmo salar stocking temporal stability Perrier, Charles Guyomard, Rene Bagliniere, Jean-luc Nikolic, Natacha Evanno, Guillaume Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency |
topic_facet |
Conservation population genetics Salmo salar stocking temporal stability |
description |
While the stocking of captive-bred fish has been occurring for decades and has had substantial immediate genetic and evolutionary impacts on wild populations, its long-term consequences have only been weakly investigated. Here, we conducted a spatiotemporal analysis of 1428 Atlantic salmon sampled from 1965 to 2006 in 25 populations throughout France to investigate the influence of stocking on the neutral genetic structure in wild Atlantic salmon (Salmo salar) populations. On the basis of the analysis of 11 microsatellite loci, we found that the overall genetic structure among populations dramatically decreased over the period studied. Admixture rates among populations were highly variable, ranging from a nearly undetectable contribution from donor stocks to total replacement of the native gene pool, suggesting extremely variable impacts of stocking. Depending on population, admixture rates either increased, remained stable, or decreased in samples collected between 1998 and 2006 compared to samples from 1965 to 1987, suggesting either rising, long-lasting or short-term impacts of stocking. We discuss the potential mechanisms contributing to this variability, including the reduced fitness of stocked fish and persistence of wild locally adapted individuals. |
format |
Article in Journal/Newspaper |
author |
Perrier, Charles Guyomard, Rene Bagliniere, Jean-luc Nikolic, Natacha Evanno, Guillaume |
author_facet |
Perrier, Charles Guyomard, Rene Bagliniere, Jean-luc Nikolic, Natacha Evanno, Guillaume |
author_sort |
Perrier, Charles |
title |
Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency |
title_short |
Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency |
title_full |
Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency |
title_fullStr |
Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency |
title_full_unstemmed |
Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency |
title_sort |
changes in the genetic structure of atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency |
publisher |
Wiley-blackwell |
publishDate |
2013 |
url |
https://archimer.ifremer.fr/doc/00141/25271/23328.pdf https://doi.org/10.1002/ece3.629 https://archimer.ifremer.fr/doc/00141/25271/ |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Ecology And Evolution (2045-7758) (Wiley-blackwell), 2013-07 , Vol. 3 , N. 7 , P. 2334-2349 |
op_relation |
https://archimer.ifremer.fr/doc/00141/25271/23328.pdf doi:10.1002/ece3.629 https://archimer.ifremer.fr/doc/00141/25271/ |
op_rights |
2013 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited info:eu-repo/semantics/openAccess restricted use |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/ece3.629 |
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Ecology and Evolution |
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3 |
container_issue |
7 |
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2334 |
op_container_end_page |
2349 |
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