Iteroparity and its contribution to life-history variation in Atlantic salmon
Evolution of iteroparity is shaped by the trade-off between current and future reproduction.We studied variation in iteroparity among 205 050 individual Atlantic salmon caught in 179 rivers spanning 14◦ of latitude. The proportion of repeat spawners (iteroparous individuals) averaged 3.8% and ranged...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Online Access: | https://hdl.handle.net/11250/3054602 https://doi.org/10.1139/cjfas-2022-0126 |
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ftninstnf:oai:brage.nina.no:11250/3054602 2023-05-15T15:31:24+02:00 Iteroparity and its contribution to life-history variation in Atlantic salmon Persson, Lo Raunsgard, Astrid Thorstad, Eva Bonsak Østborg, Gunnel Marie Urdal, Kurt Sægrov, Harald Ugedal, Ola Hindar, Kjetil Karlsson, Sten Fiske, Peder Bolstad, Geir Hysing 2023 application/pdf https://hdl.handle.net/11250/3054602 https://doi.org/10.1139/cjfas-2022-0126 eng eng Andre: Swedish Research Council FORMAS (grant 2019-01649) Egen institusjon: Norwegian institute for nature research (NINA) Andre: Grieg Seafood ASA Andre: Rådgivende Biologer AS Andre: Statkraft Energi AS Norges forskningsråd: 280308 Norges forskningsråd: 275862 Andre: Norwegian Environment Agency Andre: The power companies in the River Orkla Canadian Journal of Fisheries and Aquatic Sciences. 2023, 1-16. urn:issn:0706-652X https://hdl.handle.net/11250/3054602 https://doi.org/10.1139/cjfas-2022-0126 cristin:2124235 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2022 The Authors CC-BY 1-16 Canadian Journal of Fisheries and Aquatic Sciences age at maturity life-history evolution local adaptation repeat spawning trade-of VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Peer reviewed Journal article 2023 ftninstnf https://doi.org/10.1139/cjfas-2022-0126 2023-03-01T23:46:24Z Evolution of iteroparity is shaped by the trade-off between current and future reproduction.We studied variation in iteroparity among 205 050 individual Atlantic salmon caught in 179 rivers spanning 14◦ of latitude. The proportion of repeat spawners (iteroparous individuals) averaged 3.8% and ranged from 0% to 26% across rivers. Females were more often repeat spawners than males and had lower cost of reproduction in terms of lost body mass between spawning events. Proportion of repeat spawners for a given sea age at maturity, and the ratio of alternate to consecutive repeat spawners, increased with increasing population mean sea age at maturity. By combining smolt age, sea age at maturity, and age at additional spawning events, we identified 141 unique life-history types, and repeat spawners contributed 75% of that variation. Our results show that repeat spawners are important for life-history variation and suggest that the association between mean sea age and the frequency of repeat spawning is adaptive rather than a pleiotropic side effect arising from selection on sea age. age at maturity, life-history evolution, local adaptation, repeat spawning, trade-off publishedVersion Article in Journal/Newspaper Atlantic salmon Norwegian Institute for Nature Research: Brage NINA Canadian Journal of Fisheries and Aquatic Sciences 80 3 577 592 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
age at maturity life-history evolution local adaptation repeat spawning trade-of VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
age at maturity life-history evolution local adaptation repeat spawning trade-of VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Persson, Lo Raunsgard, Astrid Thorstad, Eva Bonsak Østborg, Gunnel Marie Urdal, Kurt Sægrov, Harald Ugedal, Ola Hindar, Kjetil Karlsson, Sten Fiske, Peder Bolstad, Geir Hysing Iteroparity and its contribution to life-history variation in Atlantic salmon |
topic_facet |
age at maturity life-history evolution local adaptation repeat spawning trade-of VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
Evolution of iteroparity is shaped by the trade-off between current and future reproduction.We studied variation in iteroparity among 205 050 individual Atlantic salmon caught in 179 rivers spanning 14◦ of latitude. The proportion of repeat spawners (iteroparous individuals) averaged 3.8% and ranged from 0% to 26% across rivers. Females were more often repeat spawners than males and had lower cost of reproduction in terms of lost body mass between spawning events. Proportion of repeat spawners for a given sea age at maturity, and the ratio of alternate to consecutive repeat spawners, increased with increasing population mean sea age at maturity. By combining smolt age, sea age at maturity, and age at additional spawning events, we identified 141 unique life-history types, and repeat spawners contributed 75% of that variation. Our results show that repeat spawners are important for life-history variation and suggest that the association between mean sea age and the frequency of repeat spawning is adaptive rather than a pleiotropic side effect arising from selection on sea age. age at maturity, life-history evolution, local adaptation, repeat spawning, trade-off publishedVersion |
format |
Article in Journal/Newspaper |
author |
Persson, Lo Raunsgard, Astrid Thorstad, Eva Bonsak Østborg, Gunnel Marie Urdal, Kurt Sægrov, Harald Ugedal, Ola Hindar, Kjetil Karlsson, Sten Fiske, Peder Bolstad, Geir Hysing |
author_facet |
Persson, Lo Raunsgard, Astrid Thorstad, Eva Bonsak Østborg, Gunnel Marie Urdal, Kurt Sægrov, Harald Ugedal, Ola Hindar, Kjetil Karlsson, Sten Fiske, Peder Bolstad, Geir Hysing |
author_sort |
Persson, Lo |
title |
Iteroparity and its contribution to life-history variation in Atlantic salmon |
title_short |
Iteroparity and its contribution to life-history variation in Atlantic salmon |
title_full |
Iteroparity and its contribution to life-history variation in Atlantic salmon |
title_fullStr |
Iteroparity and its contribution to life-history variation in Atlantic salmon |
title_full_unstemmed |
Iteroparity and its contribution to life-history variation in Atlantic salmon |
title_sort |
iteroparity and its contribution to life-history variation in atlantic salmon |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3054602 https://doi.org/10.1139/cjfas-2022-0126 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
1-16 Canadian Journal of Fisheries and Aquatic Sciences |
op_relation |
Andre: Swedish Research Council FORMAS (grant 2019-01649) Egen institusjon: Norwegian institute for nature research (NINA) Andre: Grieg Seafood ASA Andre: Rådgivende Biologer AS Andre: Statkraft Energi AS Norges forskningsråd: 280308 Norges forskningsråd: 275862 Andre: Norwegian Environment Agency Andre: The power companies in the River Orkla Canadian Journal of Fisheries and Aquatic Sciences. 2023, 1-16. urn:issn:0706-652X https://hdl.handle.net/11250/3054602 https://doi.org/10.1139/cjfas-2022-0126 cristin:2124235 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2022 The Authors |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1139/cjfas-2022-0126 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
80 |
container_issue |
3 |
container_start_page |
577 |
op_container_end_page |
592 |
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1766361898250403840 |