Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge?
In freshwater ecosystems, water temperature and discharge are two intrinsically associated triggers of key events in the life cycle of aquatic organisms such as the migration of diadromous fishes. However, global changes have already profoundly altered the thermal and hydrological regimes of rivers,...
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ftpubmed:oai:pubmedcentral.nih.gov:8651411 2023-05-15T15:31:23+02:00 Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge? Arevalo, Elorri Maire, Anthony Tétard, Stéphane Prévost, Etienne Lange, Frédéric Marchand, Frédéric Josset, Quentin Drouineau, Hilaire 2021-12-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8651411/ http://www.ncbi.nlm.nih.gov/pubmed/34875197 https://doi.org/10.1098/rspb.2021.1882 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8651411/ http://www.ncbi.nlm.nih.gov/pubmed/34875197 http://dx.doi.org/10.1098/rspb.2021.1882 © 2021 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. CC-BY Proc Biol Sci Ecology Text 2021 ftpubmed https://doi.org/10.1098/rspb.2021.1882 2021-12-26T01:26:33Z In freshwater ecosystems, water temperature and discharge are two intrinsically associated triggers of key events in the life cycle of aquatic organisms such as the migration of diadromous fishes. However, global changes have already profoundly altered the thermal and hydrological regimes of rivers, affecting the timing of fish migration as well as the environmental conditions under which it occurs. In this study, we focused on Atlantic salmon (Salmo salar), an iconic diadromous species whose individuals migrate between marine nursery areas and continental spawning grounds. An innovative multivariate method was developed to analyse long-term datasets of daily water temperature, discharge and both salmon juvenile downstream and adult upstream migrations in three French rivers (the Bresle, Oir and Nivelle rivers). While all three rivers have gradually warmed over the last 35 years, changes in discharge have been very heterogeneous. Juveniles more frequently used warmer temperatures to migrate. Adults migrating a few weeks before spawning more frequently used warm temperatures associated with high discharges. This has already led to modifications in preferential niches of both life stages and suggests a potential mismatch between these populations' ecological preference and changes in their local environment due to global change. Text Atlantic salmon Salmo salar PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 288 1964 |
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English |
topic |
Ecology |
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Ecology Arevalo, Elorri Maire, Anthony Tétard, Stéphane Prévost, Etienne Lange, Frédéric Marchand, Frédéric Josset, Quentin Drouineau, Hilaire Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge? |
topic_facet |
Ecology |
description |
In freshwater ecosystems, water temperature and discharge are two intrinsically associated triggers of key events in the life cycle of aquatic organisms such as the migration of diadromous fishes. However, global changes have already profoundly altered the thermal and hydrological regimes of rivers, affecting the timing of fish migration as well as the environmental conditions under which it occurs. In this study, we focused on Atlantic salmon (Salmo salar), an iconic diadromous species whose individuals migrate between marine nursery areas and continental spawning grounds. An innovative multivariate method was developed to analyse long-term datasets of daily water temperature, discharge and both salmon juvenile downstream and adult upstream migrations in three French rivers (the Bresle, Oir and Nivelle rivers). While all three rivers have gradually warmed over the last 35 years, changes in discharge have been very heterogeneous. Juveniles more frequently used warmer temperatures to migrate. Adults migrating a few weeks before spawning more frequently used warm temperatures associated with high discharges. This has already led to modifications in preferential niches of both life stages and suggests a potential mismatch between these populations' ecological preference and changes in their local environment due to global change. |
format |
Text |
author |
Arevalo, Elorri Maire, Anthony Tétard, Stéphane Prévost, Etienne Lange, Frédéric Marchand, Frédéric Josset, Quentin Drouineau, Hilaire |
author_facet |
Arevalo, Elorri Maire, Anthony Tétard, Stéphane Prévost, Etienne Lange, Frédéric Marchand, Frédéric Josset, Quentin Drouineau, Hilaire |
author_sort |
Arevalo, Elorri |
title |
Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge? |
title_short |
Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge? |
title_full |
Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge? |
title_fullStr |
Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge? |
title_full_unstemmed |
Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge? |
title_sort |
does global change increase the risk of maladaptation of atlantic salmon migration through joint modifications of river temperature and discharge? |
publisher |
The Royal Society |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8651411/ http://www.ncbi.nlm.nih.gov/pubmed/34875197 https://doi.org/10.1098/rspb.2021.1882 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Proc Biol Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8651411/ http://www.ncbi.nlm.nih.gov/pubmed/34875197 http://dx.doi.org/10.1098/rspb.2021.1882 |
op_rights |
© 2021 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rspb.2021.1882 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
288 |
container_issue |
1964 |
_version_ |
1766361891740844032 |