Behaviour of Atlantic salmon smolts approaching a bypass under light and dark conditions: Importance of fish development
International audience The development of passage systems for migratory fish is crucial to mitigate the impact of river fragmentation. Concerning downstream migration of juvenile salmon (smolts), understanding their behaviour is a key to improving the efficiency of bypass systems. Among devices to i...
Published in: | Ecological Engineering |
---|---|
Main Authors: | , , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2019
|
Subjects: | |
Online Access: | https://edf.hal.science/hal-02062027 https://edf.hal.science/hal-02062027/document https://edf.hal.science/hal-02062027/file/T%C3%A9tard_et_al_2019_Ecological_Engineering_Pers_edition.pdf https://doi.org/10.1016/j.ecoleng.2019.02.021 |
id |
ftgroupeedf:oai:HAL:hal-02062027v1 |
---|---|
record_format |
openpolar |
spelling |
ftgroupeedf:oai:HAL:hal-02062027v1 2024-06-09T07:44:50+00:00 Behaviour of Atlantic salmon smolts approaching a bypass under light and dark conditions: Importance of fish development Tetard, Stéphane Maire, Anthony Lemaire, Marine de Oliveira, Eric Martin, Patrick Courret, Dominique Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE) EDF R&D (EDF R&D) EDF (EDF)-EDF (EDF) Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL) Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Conservatoire National du Saumon Sauvage (CNSS) Agence Française pour la Biodiversité (AFB) EDF 2019 https://edf.hal.science/hal-02062027 https://edf.hal.science/hal-02062027/document https://edf.hal.science/hal-02062027/file/T%C3%A9tard_et_al_2019_Ecological_Engineering_Pers_edition.pdf https://doi.org/10.1016/j.ecoleng.2019.02.021 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecoleng.2019.02.021 hal-02062027 https://edf.hal.science/hal-02062027 https://edf.hal.science/hal-02062027/document https://edf.hal.science/hal-02062027/file/T%C3%A9tard_et_al_2019_Ecological_Engineering_Pers_edition.pdf doi:10.1016/j.ecoleng.2019.02.021 PRODINRA: 471265 WOS: 000465560700006 info:eu-repo/semantics/OpenAccess ISSN: 0925-8574 EISSN: 1872-6992 Ecological Engineering https://edf.hal.science/hal-02062027 Ecological Engineering, 2019, 131, pp.39-52. ⟨10.1016/j.ecoleng.2019.02.021⟩ fragmentation artificial light fishway Acoustic telemetry Salmo salar downstream migration [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDV.EE]Life Sciences [q-bio]/Ecology environment [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/article Journal articles 2019 ftgroupeedf https://doi.org/10.1016/j.ecoleng.2019.02.021 2024-05-16T14:15:54Z International audience The development of passage systems for migratory fish is crucial to mitigate the impact of river fragmentation. Concerning downstream migration of juvenile salmon (smolts), understanding their behaviour is a key to improving the efficiency of bypass systems. Among devices to improve efficiency, artificial lighting has proved effective in certain situations. Based on (1) recent observations of early migrating smolts where migration was delayed in the Poutès dam reservoir (Allier River, France) and (2) the fact that the implementation of bypass lighting devices was based on experiments involving later-season migrants, the present study assessed the effect of a lighting device on wild early-migrating smolts. One hundred wild smolts were tagged with acoustic transmitters and their behaviour near the bypass entrance under lit or dark conditions was assessed using 2D acoustic telemetry. A very abrupt change in behaviour around mid-April was observed, which directly affected their response to light. In the first phase of the downstream migration season (before mid-April), lighting significantly reduced the attractiveness of the bypass, while this surprisingly seemed to favour passage: smolts less frequently approached the bypass entry zone but passed through it more frequently. However, in the second phase (after mid-April), lighting attracted and kept the smolts close to the bypass entrance and significantly increased passage, corroborating previous experiments. The present study demonstrated an interaction between the development of migratory fish and their behaviour under lit or dark conditions. It also highlighted the importance of taking account of such behavioural change during the migration season when designing fish passage systems. Article in Journal/Newspaper Atlantic salmon Salmo salar Portail HAL-EDF Ecological Engineering 131 39 52 |
institution |
Open Polar |
collection |
Portail HAL-EDF |
op_collection_id |
ftgroupeedf |
language |
English |
topic |
fragmentation artificial light fishway Acoustic telemetry Salmo salar downstream migration [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDV.EE]Life Sciences [q-bio]/Ecology environment [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
fragmentation artificial light fishway Acoustic telemetry Salmo salar downstream migration [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDV.EE]Life Sciences [q-bio]/Ecology environment [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Tetard, Stéphane Maire, Anthony Lemaire, Marine de Oliveira, Eric Martin, Patrick Courret, Dominique Behaviour of Atlantic salmon smolts approaching a bypass under light and dark conditions: Importance of fish development |
topic_facet |
fragmentation artificial light fishway Acoustic telemetry Salmo salar downstream migration [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDV.EE]Life Sciences [q-bio]/Ecology environment [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
International audience The development of passage systems for migratory fish is crucial to mitigate the impact of river fragmentation. Concerning downstream migration of juvenile salmon (smolts), understanding their behaviour is a key to improving the efficiency of bypass systems. Among devices to improve efficiency, artificial lighting has proved effective in certain situations. Based on (1) recent observations of early migrating smolts where migration was delayed in the Poutès dam reservoir (Allier River, France) and (2) the fact that the implementation of bypass lighting devices was based on experiments involving later-season migrants, the present study assessed the effect of a lighting device on wild early-migrating smolts. One hundred wild smolts were tagged with acoustic transmitters and their behaviour near the bypass entrance under lit or dark conditions was assessed using 2D acoustic telemetry. A very abrupt change in behaviour around mid-April was observed, which directly affected their response to light. In the first phase of the downstream migration season (before mid-April), lighting significantly reduced the attractiveness of the bypass, while this surprisingly seemed to favour passage: smolts less frequently approached the bypass entry zone but passed through it more frequently. However, in the second phase (after mid-April), lighting attracted and kept the smolts close to the bypass entrance and significantly increased passage, corroborating previous experiments. The present study demonstrated an interaction between the development of migratory fish and their behaviour under lit or dark conditions. It also highlighted the importance of taking account of such behavioural change during the migration season when designing fish passage systems. |
author2 |
Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE) EDF R&D (EDF R&D) EDF (EDF)-EDF (EDF) Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL) Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Conservatoire National du Saumon Sauvage (CNSS) Agence Française pour la Biodiversité (AFB) EDF |
format |
Article in Journal/Newspaper |
author |
Tetard, Stéphane Maire, Anthony Lemaire, Marine de Oliveira, Eric Martin, Patrick Courret, Dominique |
author_facet |
Tetard, Stéphane Maire, Anthony Lemaire, Marine de Oliveira, Eric Martin, Patrick Courret, Dominique |
author_sort |
Tetard, Stéphane |
title |
Behaviour of Atlantic salmon smolts approaching a bypass under light and dark conditions: Importance of fish development |
title_short |
Behaviour of Atlantic salmon smolts approaching a bypass under light and dark conditions: Importance of fish development |
title_full |
Behaviour of Atlantic salmon smolts approaching a bypass under light and dark conditions: Importance of fish development |
title_fullStr |
Behaviour of Atlantic salmon smolts approaching a bypass under light and dark conditions: Importance of fish development |
title_full_unstemmed |
Behaviour of Atlantic salmon smolts approaching a bypass under light and dark conditions: Importance of fish development |
title_sort |
behaviour of atlantic salmon smolts approaching a bypass under light and dark conditions: importance of fish development |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://edf.hal.science/hal-02062027 https://edf.hal.science/hal-02062027/document https://edf.hal.science/hal-02062027/file/T%C3%A9tard_et_al_2019_Ecological_Engineering_Pers_edition.pdf https://doi.org/10.1016/j.ecoleng.2019.02.021 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
ISSN: 0925-8574 EISSN: 1872-6992 Ecological Engineering https://edf.hal.science/hal-02062027 Ecological Engineering, 2019, 131, pp.39-52. ⟨10.1016/j.ecoleng.2019.02.021⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecoleng.2019.02.021 hal-02062027 https://edf.hal.science/hal-02062027 https://edf.hal.science/hal-02062027/document https://edf.hal.science/hal-02062027/file/T%C3%A9tard_et_al_2019_Ecological_Engineering_Pers_edition.pdf doi:10.1016/j.ecoleng.2019.02.021 PRODINRA: 471265 WOS: 000465560700006 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.ecoleng.2019.02.021 |
container_title |
Ecological Engineering |
container_volume |
131 |
container_start_page |
39 |
op_container_end_page |
52 |
_version_ |
1801373649890967552 |