Impact of climate change and human-mediated introgression on southern European Atlantic salmon populations
This study focuses on temporal changes in Atlantic salmon (Salmo salar) populations from the vulnerable periphery of the species range (northern Spain). Using microsatellite markers to assess population structuring and introgression of exogenous genes in four different temporal samples collected acr...
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Language: | English |
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ftuabarcelonapb:oai:ddd.uab.cat:81218 2023-05-15T15:31:41+02:00 Impact of climate change and human-mediated introgression on southern European Atlantic salmon populations Horreo, J. L. Schiaffino, G. Ayllon, F. Griffiths, A. M. Brigth, D. Stevens, J. R. García-Vázquez, E. 2011 application/pdf https://ddd.uab.cat/record/81218 eng eng Global change biology Vol. 17, Núm. 5 (Maig 2011), p. 1778-1787 https://ddd.uab.cat/record/81218 urn:oai:ddd.uab.cat:81218 urn:10.1111/j.1365-2486.2010.02350.x urn:articleid:13652486v17n5p1778 urn:oai:egreta.uab.cat:publications/0cbc3415-4313-4120-ac68-f6e52ef5eef9 urn:scopus_id:79953311566 open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ Anthropogenic-mediated migration Gene flow NAOI Population structure Salmo salar Antropogèniques mediada per la migració Flux de gens Estructura de la població Salm salar Antropogénicas mediada por la migración Flujo de genes Estructura de la población Article 2011 ftuabarcelonapb 2023-02-06T20:54:28Z This study focuses on temporal changes in Atlantic salmon (Salmo salar) populations from the vulnerable periphery of the species range (northern Spain). Using microsatellite markers to assess population structuring and introgression of exogenous genes in four different temporal samples collected across 20 years, we have determined the relative weights of climate and stocking practices in shaping contemporary regional population genetic patterns. Climate, represented by the North Atlantic Oscillation Index, was identified as the main factor for determining the level of population genetic differentiation. Populations within the region have become homogenized through gene flow enhanced by straying of adult salmon from natal rivers and subsequent interchange of genes among rivers due to warmer temperatures. At the same time, and in line with documented changes in stock transfer strategies, evidence of genetic introgression from past stock transfers has decreased throughout the study period, becoming a secondary factor in erasing population structuring. The ability to disentangle the effects of climatic changes and anthropogenic factors (fisheries management practices) is essential for effective long-term conservation of this iconic species. We emphasize the importance of evaluating all factors which may be linked to stocking practices in vulnerable species, particularly those sensitive to climate change. Article in Journal/Newspaper Atlantic salmon North Atlantic North Atlantic oscillation Salmo salar Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB Global Change Biology 17 5 1778 1787 |
institution |
Open Polar |
collection |
Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
op_collection_id |
ftuabarcelonapb |
language |
English |
topic |
Anthropogenic-mediated migration Gene flow NAOI Population structure Salmo salar Antropogèniques mediada per la migració Flux de gens Estructura de la població Salm salar Antropogénicas mediada por la migración Flujo de genes Estructura de la población |
spellingShingle |
Anthropogenic-mediated migration Gene flow NAOI Population structure Salmo salar Antropogèniques mediada per la migració Flux de gens Estructura de la població Salm salar Antropogénicas mediada por la migración Flujo de genes Estructura de la población Horreo, J. L. Schiaffino, G. Ayllon, F. Griffiths, A. M. Brigth, D. Stevens, J. R. García-Vázquez, E. Impact of climate change and human-mediated introgression on southern European Atlantic salmon populations |
topic_facet |
Anthropogenic-mediated migration Gene flow NAOI Population structure Salmo salar Antropogèniques mediada per la migració Flux de gens Estructura de la població Salm salar Antropogénicas mediada por la migración Flujo de genes Estructura de la población |
description |
This study focuses on temporal changes in Atlantic salmon (Salmo salar) populations from the vulnerable periphery of the species range (northern Spain). Using microsatellite markers to assess population structuring and introgression of exogenous genes in four different temporal samples collected across 20 years, we have determined the relative weights of climate and stocking practices in shaping contemporary regional population genetic patterns. Climate, represented by the North Atlantic Oscillation Index, was identified as the main factor for determining the level of population genetic differentiation. Populations within the region have become homogenized through gene flow enhanced by straying of adult salmon from natal rivers and subsequent interchange of genes among rivers due to warmer temperatures. At the same time, and in line with documented changes in stock transfer strategies, evidence of genetic introgression from past stock transfers has decreased throughout the study period, becoming a secondary factor in erasing population structuring. The ability to disentangle the effects of climatic changes and anthropogenic factors (fisheries management practices) is essential for effective long-term conservation of this iconic species. We emphasize the importance of evaluating all factors which may be linked to stocking practices in vulnerable species, particularly those sensitive to climate change. |
format |
Article in Journal/Newspaper |
author |
Horreo, J. L. Schiaffino, G. Ayllon, F. Griffiths, A. M. Brigth, D. Stevens, J. R. García-Vázquez, E. |
author_facet |
Horreo, J. L. Schiaffino, G. Ayllon, F. Griffiths, A. M. Brigth, D. Stevens, J. R. García-Vázquez, E. |
author_sort |
Horreo, J. L. |
title |
Impact of climate change and human-mediated introgression on southern European Atlantic salmon populations |
title_short |
Impact of climate change and human-mediated introgression on southern European Atlantic salmon populations |
title_full |
Impact of climate change and human-mediated introgression on southern European Atlantic salmon populations |
title_fullStr |
Impact of climate change and human-mediated introgression on southern European Atlantic salmon populations |
title_full_unstemmed |
Impact of climate change and human-mediated introgression on southern European Atlantic salmon populations |
title_sort |
impact of climate change and human-mediated introgression on southern european atlantic salmon populations |
publishDate |
2011 |
url |
https://ddd.uab.cat/record/81218 |
genre |
Atlantic salmon North Atlantic North Atlantic oscillation Salmo salar |
genre_facet |
Atlantic salmon North Atlantic North Atlantic oscillation Salmo salar |
op_relation |
Global change biology Vol. 17, Núm. 5 (Maig 2011), p. 1778-1787 https://ddd.uab.cat/record/81218 urn:oai:ddd.uab.cat:81218 urn:10.1111/j.1365-2486.2010.02350.x urn:articleid:13652486v17n5p1778 urn:oai:egreta.uab.cat:publications/0cbc3415-4313-4120-ac68-f6e52ef5eef9 urn:scopus_id:79953311566 |
op_rights |
open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ |
container_title |
Global Change Biology |
container_volume |
17 |
container_issue |
5 |
container_start_page |
1778 |
op_container_end_page |
1787 |
_version_ |
1766362215102808064 |