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,...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Online Access: | http://dx.doi.org/10.1098/rspb.2021.1882 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2021.1882 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2021.1882 |
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crroyalsociety:10.1098/rspb.2021.1882 2024-06-02T08:03:33+00:00 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 HYNES 2021 http://dx.doi.org/10.1098/rspb.2021.1882 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2021.1882 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2021.1882 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 288, issue 1964 ISSN 0962-8452 1471-2954 journal-article 2021 crroyalsociety https://doi.org/10.1098/rspb.2021.1882 2024-05-07T14:15:58Z 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. Article in Journal/Newspaper Atlantic salmon Salmo salar The Royal Society Proceedings of the Royal Society B: Biological Sciences 288 1964 |
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The Royal Society |
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crroyalsociety |
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English |
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. |
author2 |
HYNES |
format |
Article in Journal/Newspaper |
author |
Arevalo, Elorri Maire, Anthony Tétard, Stéphane Prévost, Etienne Lange, Frédéric Marchand, Frédéric Josset, Quentin Drouineau, Hilaire |
spellingShingle |
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? |
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://dx.doi.org/10.1098/rspb.2021.1882 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2021.1882 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2021.1882 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 288, issue 1964 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
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_ |
1800748103772405760 |