Beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations
Cultured Atlantic salmon Salmo salar are of international socioeconomic value, and the process of domestication has resulted in significant behavioural, morphological, and allelic differences from wild populations. Substantial evidence indicates that direct genetic interactions or interbreeding betw...
Published in: | Aquaculture Environment Interactions |
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2020
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Online Access: | https://pure.uhi.ac.uk/en/publications/b4401955-610f-4a37-986f-358852b89bad https://doi.org/10.3354/aei00376 |
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ftuhipublicatio:oai:pure.atira.dk:publications/b4401955-610f-4a37-986f-358852b89bad 2024-06-23T07:51:16+00:00 Beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations Verspoor, Eric 2020-10-22 https://pure.uhi.ac.uk/en/publications/b4401955-610f-4a37-986f-358852b89bad https://doi.org/10.3354/aei00376 eng eng https://pure.uhi.ac.uk/en/publications/b4401955-610f-4a37-986f-358852b89bad info:eu-repo/semantics/openAccess Verspoor , E 2020 , ' Beyond hybridization : the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations ' , AQUACULTURE ENVIRONMENT INTERACTIONS , vol. 12 , pp. 429-445 . https://doi.org/10.3354/aei00376 article 2020 ftuhipublicatio https://doi.org/10.3354/aei00376 2024-05-27T23:56:27Z Cultured Atlantic salmon Salmo salar are of international socioeconomic value, and the process of domestication has resulted in significant behavioural, morphological, and allelic differences from wild populations. Substantial evidence indicates that direct genetic interactions or interbreeding between wild and escaped farmed Atlantic salmon occurs, genetically altering wild salmon and reducing population viability. However, genetic interactions may also occur through ecological mechanisms (e.g. disease, parasites, predation, competition), both in conjunction with and in the absence of interbreeding. Here we examine existing evidence for ecological and non-reproductive genetic interactions between domestic Atlantic salmon and wild populations and the potential use of genetic and genomic tools to resolve these impacts. Our review identified examples of genetic changes resulting from ecological processes, predominately through pathogen or parasite transmission. In addition, many examples were identified where aquaculture activities have either altered the selective landscape experienced by wild populations or resulted in reductions in population abundance, both of which are consistent with the widespread occurrence of indirect genetic changes. We further identify opportunities for genetic or genomic methods to quantify these impacts, though careful experimental design and pre-impact comparisons are often needed to accurately attribute genetic change to aquaculture activities. Our review indicates that ecological and non-reproductive genetic interactions are important, and further study is urgently needed to support an integrated understanding of aquaculture-–ecosystem interactions, their implications for ecosystem stability, and the development of potential mitigation and management strategies. Article in Journal/Newspaper Atlantic salmon Salmo salar University of the Highlands and Islands: Research Database of UHI Aquaculture Environment Interactions 12 429 445 |
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University of the Highlands and Islands: Research Database of UHI |
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ftuhipublicatio |
language |
English |
description |
Cultured Atlantic salmon Salmo salar are of international socioeconomic value, and the process of domestication has resulted in significant behavioural, morphological, and allelic differences from wild populations. Substantial evidence indicates that direct genetic interactions or interbreeding between wild and escaped farmed Atlantic salmon occurs, genetically altering wild salmon and reducing population viability. However, genetic interactions may also occur through ecological mechanisms (e.g. disease, parasites, predation, competition), both in conjunction with and in the absence of interbreeding. Here we examine existing evidence for ecological and non-reproductive genetic interactions between domestic Atlantic salmon and wild populations and the potential use of genetic and genomic tools to resolve these impacts. Our review identified examples of genetic changes resulting from ecological processes, predominately through pathogen or parasite transmission. In addition, many examples were identified where aquaculture activities have either altered the selective landscape experienced by wild populations or resulted in reductions in population abundance, both of which are consistent with the widespread occurrence of indirect genetic changes. We further identify opportunities for genetic or genomic methods to quantify these impacts, though careful experimental design and pre-impact comparisons are often needed to accurately attribute genetic change to aquaculture activities. Our review indicates that ecological and non-reproductive genetic interactions are important, and further study is urgently needed to support an integrated understanding of aquaculture-–ecosystem interactions, their implications for ecosystem stability, and the development of potential mitigation and management strategies. |
format |
Article in Journal/Newspaper |
author |
Verspoor, Eric |
spellingShingle |
Verspoor, Eric Beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations |
author_facet |
Verspoor, Eric |
author_sort |
Verspoor, Eric |
title |
Beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations |
title_short |
Beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations |
title_full |
Beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations |
title_fullStr |
Beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations |
title_full_unstemmed |
Beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations |
title_sort |
beyond hybridization:the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations |
publishDate |
2020 |
url |
https://pure.uhi.ac.uk/en/publications/b4401955-610f-4a37-986f-358852b89bad https://doi.org/10.3354/aei00376 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Verspoor , E 2020 , ' Beyond hybridization : the genetic impacts of non-reproductive ecological interactions of salmon aquaculture on wild populations ' , AQUACULTURE ENVIRONMENT INTERACTIONS , vol. 12 , pp. 429-445 . https://doi.org/10.3354/aei00376 |
op_relation |
https://pure.uhi.ac.uk/en/publications/b4401955-610f-4a37-986f-358852b89bad |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/aei00376 |
container_title |
Aquaculture Environment Interactions |
container_volume |
12 |
container_start_page |
429 |
op_container_end_page |
445 |
_version_ |
1802642298787332096 |