Growth during the first summer at sea modulates sex-specific maturation schedule in Atlantic salmon
International audience Recent decline in abundance of Atlantic salmon (Salmo salar) and concomitant changes in life history may result from a decline in the growth conditions during marine migration. Available literature suggests the existence of a sex-specific reaction norm linking maturation with...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | https://hal.inrae.fr/hal-03223271 https://doi.org/10.1139/cjfas-2020-0236 |
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ftunivnantes:oai:HAL:hal-03223271v1 2023-05-15T15:31:08+02:00 Growth during the first summer at sea modulates sex-specific maturation schedule in Atlantic salmon Tréhin, Cécile Rivot, Etienne Lamireau, Ludivine Meslier, Lisa Besnard, Anne-Laure Gregory, Stephen Nevoux, Marie Écologie et santé des écosystèmes (ESE) Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Unité Expérimentale d'Ecologie et d'Ecotoxicologie Aquatique - U3E (Rennes, France) (U3E ) Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Salmon and Trout Research Centre, Game and Wildlife Conservation Trust The Game and Wildlife Conservation Trust 2021 https://hal.inrae.fr/hal-03223271 https://doi.org/10.1139/cjfas-2020-0236 en eng HAL CCSD NRC Research Press info:eu-repo/semantics/altIdentifier/doi/10.1139/cjfas-2020-0236 hal-03223271 https://hal.inrae.fr/hal-03223271 doi:10.1139/cjfas-2020-0236 WOS: 000672233700004 ISSN: 0706-652X EISSN: 1205-7533 Canadian Journal of Fisheries and Aquatic Sciences https://hal.inrae.fr/hal-03223271 Canadian Journal of Fisheries and Aquatic Sciences, 2021, 78 (6), pp.659-669. ⟨10.1139/cjfas-2020-0236⟩ [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2021 ftunivnantes https://doi.org/10.1139/cjfas-2020-0236 2023-03-01T02:31:25Z International audience Recent decline in abundance of Atlantic salmon (Salmo salar) and concomitant changes in life history may result from a decline in the growth conditions during marine migration. Available literature suggests the existence of a sex-specific reaction norm linking maturation with environmental growth conditions at sea. However, the extent to which this mechanism explains variations in age at maturity remains unclear. Using a historical collection of scales (1987–2017) from the Sélune River, France, we showed that marine growth declined over the first summer and remained stable during the subsequent periods at sea among returning salmon. Results support the hypothesis of a sex-specific probabilistic reaction norm, with individual probability to return after 1 year at sea increasing when growth increases. Females may require higher growth than males to attain their maturation threshold. This mechanism is a good candidate to explain temporal variability in sea-age at return at both the individual and population level in the Sélune population and in many other southern European populations. Article in Journal/Newspaper Atlantic salmon Salmo salar Université de Nantes: HAL-UNIV-NANTES Canadian Journal of Fisheries and Aquatic Sciences 78 6 659 669 |
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Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes Tréhin, Cécile Rivot, Etienne Lamireau, Ludivine Meslier, Lisa Besnard, Anne-Laure Gregory, Stephen Nevoux, Marie Growth during the first summer at sea modulates sex-specific maturation schedule in Atlantic salmon |
topic_facet |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience Recent decline in abundance of Atlantic salmon (Salmo salar) and concomitant changes in life history may result from a decline in the growth conditions during marine migration. Available literature suggests the existence of a sex-specific reaction norm linking maturation with environmental growth conditions at sea. However, the extent to which this mechanism explains variations in age at maturity remains unclear. Using a historical collection of scales (1987–2017) from the Sélune River, France, we showed that marine growth declined over the first summer and remained stable during the subsequent periods at sea among returning salmon. Results support the hypothesis of a sex-specific probabilistic reaction norm, with individual probability to return after 1 year at sea increasing when growth increases. Females may require higher growth than males to attain their maturation threshold. This mechanism is a good candidate to explain temporal variability in sea-age at return at both the individual and population level in the Sélune population and in many other southern European populations. |
author2 |
Écologie et santé des écosystèmes (ESE) Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Unité Expérimentale d'Ecologie et d'Ecotoxicologie Aquatique - U3E (Rennes, France) (U3E ) Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Salmon and Trout Research Centre, Game and Wildlife Conservation Trust The Game and Wildlife Conservation Trust |
format |
Article in Journal/Newspaper |
author |
Tréhin, Cécile Rivot, Etienne Lamireau, Ludivine Meslier, Lisa Besnard, Anne-Laure Gregory, Stephen Nevoux, Marie |
author_facet |
Tréhin, Cécile Rivot, Etienne Lamireau, Ludivine Meslier, Lisa Besnard, Anne-Laure Gregory, Stephen Nevoux, Marie |
author_sort |
Tréhin, Cécile |
title |
Growth during the first summer at sea modulates sex-specific maturation schedule in Atlantic salmon |
title_short |
Growth during the first summer at sea modulates sex-specific maturation schedule in Atlantic salmon |
title_full |
Growth during the first summer at sea modulates sex-specific maturation schedule in Atlantic salmon |
title_fullStr |
Growth during the first summer at sea modulates sex-specific maturation schedule in Atlantic salmon |
title_full_unstemmed |
Growth during the first summer at sea modulates sex-specific maturation schedule in Atlantic salmon |
title_sort |
growth during the first summer at sea modulates sex-specific maturation schedule in atlantic salmon |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.inrae.fr/hal-03223271 https://doi.org/10.1139/cjfas-2020-0236 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
ISSN: 0706-652X EISSN: 1205-7533 Canadian Journal of Fisheries and Aquatic Sciences https://hal.inrae.fr/hal-03223271 Canadian Journal of Fisheries and Aquatic Sciences, 2021, 78 (6), pp.659-669. ⟨10.1139/cjfas-2020-0236⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1139/cjfas-2020-0236 hal-03223271 https://hal.inrae.fr/hal-03223271 doi:10.1139/cjfas-2020-0236 WOS: 000672233700004 |
op_doi |
https://doi.org/10.1139/cjfas-2020-0236 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
78 |
container_issue |
6 |
container_start_page |
659 |
op_container_end_page |
669 |
_version_ |
1766361631168659456 |