Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry
International audience River infrastructures such as weirs, hydropower stations or water reservoirs represent obstructions to migration for diadromous fish. Knowledge of accurate behaviour of fish in front of such structures is required to protect migrants from hazardous areas, guide them towards sa...
Published in: | Ecology of Freshwater Fish |
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Online Access: | https://hal.sorbonne-universite.fr/hal-02374415 https://hal.sorbonne-universite.fr/hal-02374415/document https://hal.sorbonne-universite.fr/hal-02374415/file/Trancart%20et%20al.%20-%20Behaviour%20of%20endangered%20European%20eels%20in%20proximity.pdf https://doi.org/10.1111/eff.12512 |
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ftunivantilles:oai:HAL:hal-02374415v1 2024-04-14T08:11:15+00:00 Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry Trancart, Thomas Carpentier, Alexandre Acou, Anthony Danet, Valentin Elliott, Sophie Feunteun, Eric 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) Station marine Dinard Centre De Recherche et d'Enseignement sur les Systèmes Côtiers (CRESCO) Muséum national d'Histoire naturelle (MNHN)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Muséum national d'Histoire naturelle (MNHN)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Patrimoine naturel (PatriNat) Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Agence Française pour la Biodiversité (AFB) 2019-10-29 https://hal.sorbonne-universite.fr/hal-02374415 https://hal.sorbonne-universite.fr/hal-02374415/document https://hal.sorbonne-universite.fr/hal-02374415/file/Trancart%20et%20al.%20-%20Behaviour%20of%20endangered%20European%20eels%20in%20proximity.pdf https://doi.org/10.1111/eff.12512 en eng HAL CCSD Consejo Superior de Investigaciones Científicas info:eu-repo/semantics/altIdentifier/doi/10.1111/eff.12512 hal-02374415 https://hal.sorbonne-universite.fr/hal-02374415 https://hal.sorbonne-universite.fr/hal-02374415/document https://hal.sorbonne-universite.fr/hal-02374415/file/Trancart%20et%20al.%20-%20Behaviour%20of%20endangered%20European%20eels%20in%20proximity.pdf doi:10.1111/eff.12512 info:eu-repo/semantics/OpenAccess ISSN: 0906-6691 EISSN: 1600-0633 Ecology of Freshwater Fish https://hal.sorbonne-universite.fr/hal-02374415 Ecology of Freshwater Fish, 2019, ⟨10.1111/eff.12512⟩ 3D acoustic telemetry dam diadromous fish downstream migration European eel [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2019 ftunivantilles https://doi.org/10.1111/eff.12512 2024-03-21T17:56:11Z International audience River infrastructures such as weirs, hydropower stations or water reservoirs represent obstructions to migration for diadromous fish. Knowledge of accurate behaviour of fish in front of such structures is required to protect migrants from hazardous areas, guide them towards safe passage or adapt structure to improve the escapement. We developed and made available a method to process acoustic telemetry data based on Time Difference Of Arrival analysis to accurately locate tagged fish. Improved accuracy allows the detection of escape routes and description of dam‐crossing tactics. Sixteen tagged eels were tracked with high accuracy (1–2 m) and ~1 location min−1 frequency during their exploration period on reaching the dam. Two migration routes (spillways and bottom compensation flow pipe) were used by 77% and 23% of eels respectively. Spillways were the preferred route, but a median of 16 days were required to pass the dam versus 1.1 days via the compensation pipe. A minimal water crest of 40 cm was required for passage via spillways. Eels passing through the compensation pipe were exclusively nocturnal and mainly explored the bottom of the dam. Eels passing through spillways explored the whole dam area by night and day, and were not attracted to the compensation pipe entrance. With global warming, more frequent drought periods are expected, potentially leading to decreased opportunities for eels to migrate across safer dams by spillways. To conserve this endangered species, dam management strategies that account for expected hydrologic conditions and distinct exploration behaviours are needed. Article in Journal/Newspaper European eel Université des Antilles (UAG): HAL Ecology of Freshwater Fish 29 2 266 279 |
institution |
Open Polar |
collection |
Université des Antilles (UAG): HAL |
op_collection_id |
ftunivantilles |
language |
English |
topic |
3D acoustic telemetry dam diadromous fish downstream migration European eel [SDE]Environmental Sciences |
spellingShingle |
3D acoustic telemetry dam diadromous fish downstream migration European eel [SDE]Environmental Sciences Trancart, Thomas Carpentier, Alexandre Acou, Anthony Danet, Valentin Elliott, Sophie Feunteun, Eric Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry |
topic_facet |
3D acoustic telemetry dam diadromous fish downstream migration European eel [SDE]Environmental Sciences |
description |
International audience River infrastructures such as weirs, hydropower stations or water reservoirs represent obstructions to migration for diadromous fish. Knowledge of accurate behaviour of fish in front of such structures is required to protect migrants from hazardous areas, guide them towards safe passage or adapt structure to improve the escapement. We developed and made available a method to process acoustic telemetry data based on Time Difference Of Arrival analysis to accurately locate tagged fish. Improved accuracy allows the detection of escape routes and description of dam‐crossing tactics. Sixteen tagged eels were tracked with high accuracy (1–2 m) and ~1 location min−1 frequency during their exploration period on reaching the dam. Two migration routes (spillways and bottom compensation flow pipe) were used by 77% and 23% of eels respectively. Spillways were the preferred route, but a median of 16 days were required to pass the dam versus 1.1 days via the compensation pipe. A minimal water crest of 40 cm was required for passage via spillways. Eels passing through the compensation pipe were exclusively nocturnal and mainly explored the bottom of the dam. Eels passing through spillways explored the whole dam area by night and day, and were not attracted to the compensation pipe entrance. With global warming, more frequent drought periods are expected, potentially leading to decreased opportunities for eels to migrate across safer dams by spillways. To conserve this endangered species, dam management strategies that account for expected hydrologic conditions and distinct exploration behaviours are needed. |
author2 |
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) Station marine Dinard Centre De Recherche et d'Enseignement sur les Systèmes Côtiers (CRESCO) Muséum national d'Histoire naturelle (MNHN)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Muséum national d'Histoire naturelle (MNHN)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Patrimoine naturel (PatriNat) Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Agence Française pour la Biodiversité (AFB) |
format |
Article in Journal/Newspaper |
author |
Trancart, Thomas Carpentier, Alexandre Acou, Anthony Danet, Valentin Elliott, Sophie Feunteun, Eric |
author_facet |
Trancart, Thomas Carpentier, Alexandre Acou, Anthony Danet, Valentin Elliott, Sophie Feunteun, Eric |
author_sort |
Trancart, Thomas |
title |
Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry |
title_short |
Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry |
title_full |
Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry |
title_fullStr |
Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry |
title_full_unstemmed |
Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry |
title_sort |
behaviour of endangered european eels in proximity to a dam during downstream migration: novel insights using high accuracy 3d acoustic telemetry |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.sorbonne-universite.fr/hal-02374415 https://hal.sorbonne-universite.fr/hal-02374415/document https://hal.sorbonne-universite.fr/hal-02374415/file/Trancart%20et%20al.%20-%20Behaviour%20of%20endangered%20European%20eels%20in%20proximity.pdf https://doi.org/10.1111/eff.12512 |
genre |
European eel |
genre_facet |
European eel |
op_source |
ISSN: 0906-6691 EISSN: 1600-0633 Ecology of Freshwater Fish https://hal.sorbonne-universite.fr/hal-02374415 Ecology of Freshwater Fish, 2019, ⟨10.1111/eff.12512⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/eff.12512 hal-02374415 https://hal.sorbonne-universite.fr/hal-02374415 https://hal.sorbonne-universite.fr/hal-02374415/document https://hal.sorbonne-universite.fr/hal-02374415/file/Trancart%20et%20al.%20-%20Behaviour%20of%20endangered%20European%20eels%20in%20proximity.pdf doi:10.1111/eff.12512 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1111/eff.12512 |
container_title |
Ecology of Freshwater Fish |
container_volume |
29 |
container_issue |
2 |
container_start_page |
266 |
op_container_end_page |
279 |
_version_ |
1796308945940250624 |