Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts
The precise homing of Atlantic salmon to their natal river and spawning grounds is the foundation for locally adapted genetically differentiated populations across rivers or across river sections. A sequential imprinting hypothesis states that salmon smolts may imprint on environmental clues along t...
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ftpubmed:oai:pubmedcentral.nih.gov:9374756 2023-05-15T15:28:49+02:00 Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts Haraldstad, Tormod Forseth, Torbjørn Olsen, Esben M. Haugen, Thrond O. Höglund, Erik 2022-08-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9374756/ http://www.ncbi.nlm.nih.gov/pubmed/35962063 https://doi.org/10.1038/s41598-022-17690-2 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9374756/ http://www.ncbi.nlm.nih.gov/pubmed/35962063 http://dx.doi.org/10.1038/s41598-022-17690-2 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Sci Rep Article Text 2022 ftpubmed https://doi.org/10.1038/s41598-022-17690-2 2022-08-21T00:38:01Z The precise homing of Atlantic salmon to their natal river and spawning grounds is the foundation for locally adapted genetically differentiated populations across rivers or across river sections. A sequential imprinting hypothesis states that salmon smolts may imprint on environmental clues along the outward migration route and then use this in reverse order to direct the spawning migration later in life. In this study, we provide empirical support for this hypothesis. PIT-tagged wild Atlantic salmon using a 2 km hydropower tunnel as downstream migrating smolts had a 18% (1SW) and 23% (2SW) lower probability of successfully migrating through the parallel river stretch as adult spawners compared to spawners that migrated through the same river stretch as smolts. These findings highlight how a fine-scale riverine migration route may be imprinted in wild Atlantic salmon smolts. From an applied perspective, these results stress the importance of not depriving smolts from parts of their migration route to ensure successful return of adults to their natal spawning grounds. Text Atlantic salmon Salmo salar PubMed Central (PMC) Scientific Reports 12 1 |
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Article Haraldstad, Tormod Forseth, Torbjørn Olsen, Esben M. Haugen, Thrond O. Höglund, Erik Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts |
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The precise homing of Atlantic salmon to their natal river and spawning grounds is the foundation for locally adapted genetically differentiated populations across rivers or across river sections. A sequential imprinting hypothesis states that salmon smolts may imprint on environmental clues along the outward migration route and then use this in reverse order to direct the spawning migration later in life. In this study, we provide empirical support for this hypothesis. PIT-tagged wild Atlantic salmon using a 2 km hydropower tunnel as downstream migrating smolts had a 18% (1SW) and 23% (2SW) lower probability of successfully migrating through the parallel river stretch as adult spawners compared to spawners that migrated through the same river stretch as smolts. These findings highlight how a fine-scale riverine migration route may be imprinted in wild Atlantic salmon smolts. From an applied perspective, these results stress the importance of not depriving smolts from parts of their migration route to ensure successful return of adults to their natal spawning grounds. |
format |
Text |
author |
Haraldstad, Tormod Forseth, Torbjørn Olsen, Esben M. Haugen, Thrond O. Höglund, Erik |
author_facet |
Haraldstad, Tormod Forseth, Torbjørn Olsen, Esben M. Haugen, Thrond O. Höglund, Erik |
author_sort |
Haraldstad, Tormod |
title |
Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts |
title_short |
Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts |
title_full |
Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts |
title_fullStr |
Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts |
title_full_unstemmed |
Empirical support for sequential imprinting during downstream migration in Atlantic salmon (Salmo salar) smolts |
title_sort |
empirical support for sequential imprinting during downstream migration in atlantic salmon (salmo salar) smolts |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9374756/ http://www.ncbi.nlm.nih.gov/pubmed/35962063 https://doi.org/10.1038/s41598-022-17690-2 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9374756/ http://www.ncbi.nlm.nih.gov/pubmed/35962063 http://dx.doi.org/10.1038/s41598-022-17690-2 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-022-17690-2 |
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Scientific Reports |
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12 |
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