Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex
International audience Developing management rules to improve downstream migration of salmon smolts in large hydropower plants is essential to limit mortality and migration delay. A 2-year telemetry study was conducted to assess the efficiency of temporary measures to enhance the safety and speed of...
Published in: | Knowledge & Management of Aquatic Ecosystems |
---|---|
Main Authors: | , , , , |
Other Authors: | , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2021
|
Subjects: | |
Online Access: | https://hal.science/hal-03181067 https://hal.science/hal-03181067/document https://hal.science/hal-03181067/file/27493_Tetard.pdf https://doi.org/10.1051/kmae/2021004 |
id |
ftunivnantes:oai:HAL:hal-03181067v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Atlantic salmon Downstream migration Migratory delay Operational management Turbine shutdown [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] |
spellingShingle |
Atlantic salmon Downstream migration Migratory delay Operational management Turbine shutdown [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] Tétard, Stéphane Roy, Romain Teichert, Nils Rancon, Jocelyn Courret, Dominique Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex |
topic_facet |
Atlantic salmon Downstream migration Migratory delay Operational management Turbine shutdown [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] |
description |
International audience Developing management rules to improve downstream migration of salmon smolts in large hydropower plants is essential to limit mortality and migration delay. A 2-year telemetry study was conducted to assess the efficiency of temporary measures to enhance the safety and speed of juvenile salmon passage through the Poutès dam (Allier River, France). 124 smolts were tracked through the reservoir and downstream of the dam, during implementation of turbine modulation and/or shutdown during night and reservoir level lowering. Level lowering significantly reduced median residence time from 3.4 days to 4.4 hours. However, even with high spill during turbine modulation, the risk of smolt being drawn toward the turbines was increased at low reservoir level due to the site’s configuration, greater proximity to the surface and weak repulsive effect of the rack. Moreover, results revealed that a substantial proportion of smolts can migrate during daytime and twilight during floods, even at the beginning of the migration period. Thus targeted turbine shutdown has a good potential to protect smolts, but implementation requires studies taking account of site specificities and a flexible approach. |
author2 |
ICEO - Ingénierie et du Criblage d’Enzymes Originales (TBI-ICEO) Toulouse Biotechnology Institute (TBI) Institut National des Sciences Appliquées - Toulouse (INSA Toulouse) Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse) Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE) EDF R&D (EDF R&D) EDF (EDF)-EDF (EDF) Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Conservatoire National du Saumon Sauvage (CNSS) Institut de mécanique des fluides de Toulouse (IMFT) Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) Université Fédérale Toulouse Midi-Pyrénées |
format |
Article in Journal/Newspaper |
author |
Tétard, Stéphane Roy, Romain Teichert, Nils Rancon, Jocelyn Courret, Dominique |
author_facet |
Tétard, Stéphane Roy, Romain Teichert, Nils Rancon, Jocelyn Courret, Dominique |
author_sort |
Tétard, Stéphane |
title |
Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex |
title_short |
Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex |
title_full |
Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex |
title_fullStr |
Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex |
title_full_unstemmed |
Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex |
title_sort |
temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03181067 https://hal.science/hal-03181067/document https://hal.science/hal-03181067/file/27493_Tetard.pdf https://doi.org/10.1051/kmae/2021004 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
ISSN: 1961-9502 Knowledge and Management of Aquatic Ecosystems https://hal.science/hal-03181067 Knowledge and Management of Aquatic Ecosystems, 2021, 422 (4), pp.0. ⟨10.1051/kmae/2021004⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1051/kmae/2021004 hal-03181067 https://hal.science/hal-03181067 https://hal.science/hal-03181067/document https://hal.science/hal-03181067/file/27493_Tetard.pdf doi:10.1051/kmae/2021004 OATAO: 27493 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1051/kmae/2021004 |
container_title |
Knowledge & Management of Aquatic Ecosystems |
container_issue |
422 |
container_start_page |
4 |
_version_ |
1766363040414957568 |
spelling |
ftunivnantes:oai:HAL:hal-03181067v1 2023-05-15T15:32:33+02:00 Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex Tétard, Stéphane Roy, Romain Teichert, Nils Rancon, Jocelyn Courret, Dominique ICEO - Ingénierie et du Criblage d’Enzymes Originales (TBI-ICEO) Toulouse Biotechnology Institute (TBI) Institut National des Sciences Appliquées - Toulouse (INSA Toulouse) Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse) Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE) EDF R&D (EDF R&D) EDF (EDF)-EDF (EDF) Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Conservatoire National du Saumon Sauvage (CNSS) Institut de mécanique des fluides de Toulouse (IMFT) Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) Université Fédérale Toulouse Midi-Pyrénées 2021-02-18 https://hal.science/hal-03181067 https://hal.science/hal-03181067/document https://hal.science/hal-03181067/file/27493_Tetard.pdf https://doi.org/10.1051/kmae/2021004 en eng HAL CCSD EDP sciences/ONEMA info:eu-repo/semantics/altIdentifier/doi/10.1051/kmae/2021004 hal-03181067 https://hal.science/hal-03181067 https://hal.science/hal-03181067/document https://hal.science/hal-03181067/file/27493_Tetard.pdf doi:10.1051/kmae/2021004 OATAO: 27493 info:eu-repo/semantics/OpenAccess ISSN: 1961-9502 Knowledge and Management of Aquatic Ecosystems https://hal.science/hal-03181067 Knowledge and Management of Aquatic Ecosystems, 2021, 422 (4), pp.0. ⟨10.1051/kmae/2021004⟩ Atlantic salmon Downstream migration Migratory delay Operational management Turbine shutdown [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] info:eu-repo/semantics/article Journal articles 2021 ftunivnantes https://doi.org/10.1051/kmae/2021004 2023-02-22T03:42:34Z International audience Developing management rules to improve downstream migration of salmon smolts in large hydropower plants is essential to limit mortality and migration delay. A 2-year telemetry study was conducted to assess the efficiency of temporary measures to enhance the safety and speed of juvenile salmon passage through the Poutès dam (Allier River, France). 124 smolts were tracked through the reservoir and downstream of the dam, during implementation of turbine modulation and/or shutdown during night and reservoir level lowering. Level lowering significantly reduced median residence time from 3.4 days to 4.4 hours. However, even with high spill during turbine modulation, the risk of smolt being drawn toward the turbines was increased at low reservoir level due to the site’s configuration, greater proximity to the surface and weak repulsive effect of the rack. Moreover, results revealed that a substantial proportion of smolts can migrate during daytime and twilight during floods, even at the beginning of the migration period. Thus targeted turbine shutdown has a good potential to protect smolts, but implementation requires studies taking account of site specificities and a flexible approach. Article in Journal/Newspaper Atlantic salmon Université de Nantes: HAL-UNIV-NANTES Knowledge & Management of Aquatic Ecosystems 422 4 |