Postrelease exploration and stress tolerance of landlocked and anadromous Atlantic salmon and their hybrids
Threatened fish populations worldwide are relying on stock supplementation by hatchery-reared fish. Although stocking with non-native fish may lead to hybridization, thereby disrupting local adaptations, it could also improve the adaptive potential of small populations by increasing variability in e...
Published in: | Conservation Science and Practice |
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2023
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Online Access: | https://erepo.uef.fi/handle/123456789/29349 |
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ftuniveasternfin:oai:erepo.uef.fi:123456789/29349 2023-05-15T15:32:35+02:00 Postrelease exploration and stress tolerance of landlocked and anadromous Atlantic salmon and their hybrids Eronen, Aslak Hyvärinen, Pekka Janhunen, Matti Kekäläinen, Jukka Kortet, Raine Ympäristö- ja biotieteiden laitos 2023-03-17T10:33:49Z https://erepo.uef.fi/handle/123456789/29349 eng eng Wiley Periodicals LLC on behalf of Society for Conservation Biology Conservation science and practice https://doi.org/10.1111/csp2.12893 10.1111/csp2.12893 e12893 2578-4854 3 5 https://erepo.uef.fi/handle/123456789/29349 CC BY 4.0 openAccess © 2023 The Authors https://creativecommons.org/licenses/by/4.0/ behavior crossbreeding domestication fish personality genetic rescue inbreeding effects movement behavior salmonids A1 Artikkeli Article 2023 ftuniveasternfin https://doi.org/10.1111/csp2.12893 2023-03-22T23:59:24Z Threatened fish populations worldwide are relying on stock supplementation by hatchery-reared fish. Although stocking with non-native fish may lead to hybridization, thereby disrupting local adaptations, it could also improve the adaptive potential of small populations by increasing variability in essential behavioral traits. In this study, we crossbred the critically endangered Finnish landlocked salmon with a geographically close Baltic anadromous salmon population to compare boldness-related behavioral traits among the crossing groups. We studied postrelease exploration in seminatural streams and tested stress tolerance of the fish, as reflected by their response during swimming trials and commencement of feeding after the trials. In the stress tolerance experiments, we compared fish with different rearing backgrounds to gain insight into environmentally induced variability in stress tolerance. When compared with the anadromous salmon, the landlocked salmon showed more active postrelease exploration and higher stress tolerance. The hybrids displayed intermediate behaviors compared with the purebred salmon, indicating heritability of these traits. The landlocked salmon showed less variable exploration than the hybrids with anadromous salmon as the maternal strain, but we did not find rearing-dependent responses in stress tolerance. In summary, our findings suggest that hybridization could help in reversing likely domestication-related negative behavioral traits in the landlocked salmon. published version peerReviewed Article in Journal/Newspaper Atlantic salmon UEF eRepository (University of Eastern Finland) Conservation Science and Practice 5 3 |
institution |
Open Polar |
collection |
UEF eRepository (University of Eastern Finland) |
op_collection_id |
ftuniveasternfin |
language |
English |
topic |
behavior crossbreeding domestication fish personality genetic rescue inbreeding effects movement behavior salmonids |
spellingShingle |
behavior crossbreeding domestication fish personality genetic rescue inbreeding effects movement behavior salmonids Eronen, Aslak Hyvärinen, Pekka Janhunen, Matti Kekäläinen, Jukka Kortet, Raine Postrelease exploration and stress tolerance of landlocked and anadromous Atlantic salmon and their hybrids |
topic_facet |
behavior crossbreeding domestication fish personality genetic rescue inbreeding effects movement behavior salmonids |
description |
Threatened fish populations worldwide are relying on stock supplementation by hatchery-reared fish. Although stocking with non-native fish may lead to hybridization, thereby disrupting local adaptations, it could also improve the adaptive potential of small populations by increasing variability in essential behavioral traits. In this study, we crossbred the critically endangered Finnish landlocked salmon with a geographically close Baltic anadromous salmon population to compare boldness-related behavioral traits among the crossing groups. We studied postrelease exploration in seminatural streams and tested stress tolerance of the fish, as reflected by their response during swimming trials and commencement of feeding after the trials. In the stress tolerance experiments, we compared fish with different rearing backgrounds to gain insight into environmentally induced variability in stress tolerance. When compared with the anadromous salmon, the landlocked salmon showed more active postrelease exploration and higher stress tolerance. The hybrids displayed intermediate behaviors compared with the purebred salmon, indicating heritability of these traits. The landlocked salmon showed less variable exploration than the hybrids with anadromous salmon as the maternal strain, but we did not find rearing-dependent responses in stress tolerance. In summary, our findings suggest that hybridization could help in reversing likely domestication-related negative behavioral traits in the landlocked salmon. published version peerReviewed |
author2 |
Ympäristö- ja biotieteiden laitos |
format |
Article in Journal/Newspaper |
author |
Eronen, Aslak Hyvärinen, Pekka Janhunen, Matti Kekäläinen, Jukka Kortet, Raine |
author_facet |
Eronen, Aslak Hyvärinen, Pekka Janhunen, Matti Kekäläinen, Jukka Kortet, Raine |
author_sort |
Eronen, Aslak |
title |
Postrelease exploration and stress tolerance of landlocked and anadromous Atlantic salmon and their hybrids |
title_short |
Postrelease exploration and stress tolerance of landlocked and anadromous Atlantic salmon and their hybrids |
title_full |
Postrelease exploration and stress tolerance of landlocked and anadromous Atlantic salmon and their hybrids |
title_fullStr |
Postrelease exploration and stress tolerance of landlocked and anadromous Atlantic salmon and their hybrids |
title_full_unstemmed |
Postrelease exploration and stress tolerance of landlocked and anadromous Atlantic salmon and their hybrids |
title_sort |
postrelease exploration and stress tolerance of landlocked and anadromous atlantic salmon and their hybrids |
publisher |
Wiley Periodicals LLC on behalf of Society for Conservation Biology |
publishDate |
2023 |
url |
https://erepo.uef.fi/handle/123456789/29349 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
Conservation science and practice https://doi.org/10.1111/csp2.12893 10.1111/csp2.12893 e12893 2578-4854 3 5 https://erepo.uef.fi/handle/123456789/29349 |
op_rights |
CC BY 4.0 openAccess © 2023 The Authors https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/csp2.12893 |
container_title |
Conservation Science and Practice |
container_volume |
5 |
container_issue |
3 |
_version_ |
1766363082728144896 |