Past and future joint trends in river temperature and flow: implications for diadromous fish
International audience Most key life-cycle events of organisms are synchronized by complex interactions of environmental cues to ensure optimal survival and growth of individuals and their offspring. However, this synchronicity is threatened by global change, which modifies the hydrological and ther...
Main Authors: | , , , , , |
---|---|
Other Authors: | , , , , , , , |
Format: | Conference Object |
Language: | English |
Published: |
HAL CCSD
2023
|
Subjects: | |
Online Access: | https://hal.science/hal-04148814 https://hal.science/hal-04148814/document |
id |
ftgroupeedf:oai:HAL:hal-04148814v1 |
---|---|
record_format |
openpolar |
spelling |
ftgroupeedf:oai:HAL:hal-04148814v1 2024-06-16T07:38:48+00:00 Past and future joint trends in river temperature and flow: implications for diadromous fish Maire, Anthony Seyedhashemi, Hanieh Arevalo, Elorri Legrand, Marion Moatar, Florentina Drouineau, Hilaire Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE) EDF R&D (EDF R&D) EDF (EDF)-EDF (EDF) RiverLy - Fonctionnement des hydrosystèmes (RiverLy) Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Ecosystèmes aquatiques et changements globaux (UR EABX) Association Loire Grands Migrateurs (LOGRAMI) Association pour la gestion et la restauration des poissons migrateurs du bassin de la Loire Newcaste upon Tyne, United Kingdom 2023-06-18 https://hal.science/hal-04148814 https://hal.science/hal-04148814/document en eng HAL CCSD hal-04148814 https://hal.science/hal-04148814 https://hal.science/hal-04148814/document Symposium for European Freshwater Sciences 13 https://hal.science/hal-04148814 Symposium for European Freshwater Sciences 13, Jun 2023, Newcaste upon Tyne, United Kingdom [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDV.EE]Life Sciences [q-bio]/Ecology environment info:eu-repo/semantics/conferenceObject Conference papers 2023 ftgroupeedf 2024-05-22T23:32:03Z International audience Most key life-cycle events of organisms are synchronized by complex interactions of environmental cues to ensure optimal survival and growth of individuals and their offspring. However, this synchronicity is threatened by global change, which modifies the hydrological and thermal regimes of rivers worldwide. In particular, the asynchronous evolution of river temperature and flow can alter the duration and frequency of environmental windows suitable for the migration of diadromous fish. In this research project, we first developed the ‘Choc’ method to explore temporal CHanges in the OCcurrence of associations in bivariate time series. We applied this method to several case studies, which highlighted how global change has altered the conditions under which the endangered European eel and Atlantic salmon migrate, and how they have responded to these environmental changes. Recently, reconstructed (1963-2019) and projected (2020-2100) daily river temperature and flow data have been modelled over the entire hydrographic network of the Loire catchment (France). We combined this extensive dataset with daily fish passages available at fishways to assess the spatial and seasonal variability of trends in temperature-flow associations at a large scale. We then described how it has affected and will likely affect migration conditions of Atlantic salmon, allis shad and sea lamprey in the Loire catchment. Finally, we developed indicators to quantify past, present and future environmental suitability for their migration that allow comparison between rivers and tributaries, thereby providing operational results for the conservation of diadromous species and the prioritization of management actions in the context of global change. Conference Object Atlantic salmon European eel Portail HAL-EDF |
institution |
Open Polar |
collection |
Portail HAL-EDF |
op_collection_id |
ftgroupeedf |
language |
English |
topic |
[SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDV.EE]Life Sciences [q-bio]/Ecology environment |
spellingShingle |
[SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDV.EE]Life Sciences [q-bio]/Ecology environment Maire, Anthony Seyedhashemi, Hanieh Arevalo, Elorri Legrand, Marion Moatar, Florentina Drouineau, Hilaire Past and future joint trends in river temperature and flow: implications for diadromous fish |
topic_facet |
[SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology [SDV.EE]Life Sciences [q-bio]/Ecology environment |
description |
International audience Most key life-cycle events of organisms are synchronized by complex interactions of environmental cues to ensure optimal survival and growth of individuals and their offspring. However, this synchronicity is threatened by global change, which modifies the hydrological and thermal regimes of rivers worldwide. In particular, the asynchronous evolution of river temperature and flow can alter the duration and frequency of environmental windows suitable for the migration of diadromous fish. In this research project, we first developed the ‘Choc’ method to explore temporal CHanges in the OCcurrence of associations in bivariate time series. We applied this method to several case studies, which highlighted how global change has altered the conditions under which the endangered European eel and Atlantic salmon migrate, and how they have responded to these environmental changes. Recently, reconstructed (1963-2019) and projected (2020-2100) daily river temperature and flow data have been modelled over the entire hydrographic network of the Loire catchment (France). We combined this extensive dataset with daily fish passages available at fishways to assess the spatial and seasonal variability of trends in temperature-flow associations at a large scale. We then described how it has affected and will likely affect migration conditions of Atlantic salmon, allis shad and sea lamprey in the Loire catchment. Finally, we developed indicators to quantify past, present and future environmental suitability for their migration that allow comparison between rivers and tributaries, thereby providing operational results for the conservation of diadromous species and the prioritization of management actions in the context of global change. |
author2 |
Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE) EDF R&D (EDF R&D) EDF (EDF)-EDF (EDF) RiverLy - Fonctionnement des hydrosystèmes (RiverLy) Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Ecosystèmes aquatiques et changements globaux (UR EABX) Association Loire Grands Migrateurs (LOGRAMI) Association pour la gestion et la restauration des poissons migrateurs du bassin de la Loire |
format |
Conference Object |
author |
Maire, Anthony Seyedhashemi, Hanieh Arevalo, Elorri Legrand, Marion Moatar, Florentina Drouineau, Hilaire |
author_facet |
Maire, Anthony Seyedhashemi, Hanieh Arevalo, Elorri Legrand, Marion Moatar, Florentina Drouineau, Hilaire |
author_sort |
Maire, Anthony |
title |
Past and future joint trends in river temperature and flow: implications for diadromous fish |
title_short |
Past and future joint trends in river temperature and flow: implications for diadromous fish |
title_full |
Past and future joint trends in river temperature and flow: implications for diadromous fish |
title_fullStr |
Past and future joint trends in river temperature and flow: implications for diadromous fish |
title_full_unstemmed |
Past and future joint trends in river temperature and flow: implications for diadromous fish |
title_sort |
past and future joint trends in river temperature and flow: implications for diadromous fish |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04148814 https://hal.science/hal-04148814/document |
op_coverage |
Newcaste upon Tyne, United Kingdom |
genre |
Atlantic salmon European eel |
genre_facet |
Atlantic salmon European eel |
op_source |
Symposium for European Freshwater Sciences 13 https://hal.science/hal-04148814 Symposium for European Freshwater Sciences 13, Jun 2023, Newcaste upon Tyne, United Kingdom |
op_relation |
hal-04148814 https://hal.science/hal-04148814 https://hal.science/hal-04148814/document |
_version_ |
1802005512860991488 |