Migration behaviour of silver eels (Anguilla anguilla) in a large estuary of Western Europe inferred from acoustic telemetry
International audience Despite intensive research on eels, the behaviour of silver eels in estuaries during their migration remains poorly documented which creates serious gaps in planning the restoration of the European eel population. Estuaries are complex environments that can be exposed to large...
Published in: | Estuarine, Coastal and Shelf Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2014
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Online Access: | https://hal.inrae.fr/hal-02630562 https://doi.org/10.1016/j.ecss.2013.11.023 |
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ftunivnantes:oai:HAL:hal-02630562v1 2023-05-15T13:27:48+02:00 Migration behaviour of silver eels (Anguilla anguilla) in a large estuary of Western Europe inferred from acoustic telemetry Bultel, Elise Lasne, Emilien Acou, Anthony Guillaudeau, Julien Bertier, Christine Feunteun, Eric Muséum national d'Histoire naturelle (MNHN) 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 ) Groupement d'Intérêt Public Loire Estuaire Partenaires INRAE Muséum d'Histoire Naturelle de Genève French Ministry of Environment European Project: 212133,EC:FP7:ENV,FP7-ENV-2007-1,EELIAD(2008) 2014 https://hal.inrae.fr/hal-02630562 https://doi.org/10.1016/j.ecss.2013.11.023 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecss.2013.11.023 info:eu-repo/grantAgreement/EC/FP7/212133/EU/European Eels in the Atlantic: Assessment of Their Decline/EELIAD hal-02630562 https://hal.inrae.fr/hal-02630562 doi:10.1016/j.ecss.2013.11.023 PRODINRA: 261520 WOS: 000331507000003 ISSN: 0272-7714 EISSN: 1096-0015 Estuarine, Coastal and Shelf Science https://hal.inrae.fr/hal-02630562 Estuarine, Coastal and Shelf Science, Elsevier, 2014, 137, pp.23-31. ⟨10.1016/j.ecss.2013.11.023⟩ http://www.journals.elsevier.com/estuarine-coastal-and-shelf-science/ silver eel spawning migration conservation escapement biological traits European Eel Management Plan Loire estuary [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2014 ftunivnantes https://doi.org/10.1016/j.ecss.2013.11.023 2022-07-12T23:58:06Z International audience Despite intensive research on eels, the behaviour of silver eels in estuaries during their migration remains poorly documented which creates serious gaps in planning the restoration of the European eel population. Estuaries are complex environments that can be exposed to large human pressures which could impede, delay migration or impact fish reproductive potential. This study investigated the estuarine migration of female silver eels in the Loire River using an acoustic telemetry system. An array of 31 hydrophones was deployed in the Loire estuary and 51 female seaward migrants were tagged with acoustic transmitters and released 20 km upstream of the estuary, at 100 km from the river mouth. 94% of the silver eels could be followed down to the river mouth. Mean global estuarine speed was 4.5 km days(-1), i.e., 0.05 m s(-1) and residence times varied significantly between upstream and lower compartments. Mean directional migration speed was found to be 48.6 km days(-1), i.e., 0.56 m s(-1), and appeared correlated with total length and body weight. Also, daily escapement rate was highly influenced by river flow. Article in Journal/Newspaper Anguilla anguilla Université de Nantes: HAL-UNIV-NANTES Estuarine, Coastal and Shelf Science 137 23 31 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
silver eel spawning migration conservation escapement biological traits European Eel Management Plan Loire estuary [SDV]Life Sciences [q-bio] |
spellingShingle |
silver eel spawning migration conservation escapement biological traits European Eel Management Plan Loire estuary [SDV]Life Sciences [q-bio] Bultel, Elise Lasne, Emilien Acou, Anthony Guillaudeau, Julien Bertier, Christine Feunteun, Eric Migration behaviour of silver eels (Anguilla anguilla) in a large estuary of Western Europe inferred from acoustic telemetry |
topic_facet |
silver eel spawning migration conservation escapement biological traits European Eel Management Plan Loire estuary [SDV]Life Sciences [q-bio] |
description |
International audience Despite intensive research on eels, the behaviour of silver eels in estuaries during their migration remains poorly documented which creates serious gaps in planning the restoration of the European eel population. Estuaries are complex environments that can be exposed to large human pressures which could impede, delay migration or impact fish reproductive potential. This study investigated the estuarine migration of female silver eels in the Loire River using an acoustic telemetry system. An array of 31 hydrophones was deployed in the Loire estuary and 51 female seaward migrants were tagged with acoustic transmitters and released 20 km upstream of the estuary, at 100 km from the river mouth. 94% of the silver eels could be followed down to the river mouth. Mean global estuarine speed was 4.5 km days(-1), i.e., 0.05 m s(-1) and residence times varied significantly between upstream and lower compartments. Mean directional migration speed was found to be 48.6 km days(-1), i.e., 0.56 m s(-1), and appeared correlated with total length and body weight. Also, daily escapement rate was highly influenced by river flow. |
author2 |
Muséum national d'Histoire naturelle (MNHN) 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 ) Groupement d'Intérêt Public Loire Estuaire Partenaires INRAE Muséum d'Histoire Naturelle de Genève French Ministry of Environment European Project: 212133,EC:FP7:ENV,FP7-ENV-2007-1,EELIAD(2008) |
format |
Article in Journal/Newspaper |
author |
Bultel, Elise Lasne, Emilien Acou, Anthony Guillaudeau, Julien Bertier, Christine Feunteun, Eric |
author_facet |
Bultel, Elise Lasne, Emilien Acou, Anthony Guillaudeau, Julien Bertier, Christine Feunteun, Eric |
author_sort |
Bultel, Elise |
title |
Migration behaviour of silver eels (Anguilla anguilla) in a large estuary of Western Europe inferred from acoustic telemetry |
title_short |
Migration behaviour of silver eels (Anguilla anguilla) in a large estuary of Western Europe inferred from acoustic telemetry |
title_full |
Migration behaviour of silver eels (Anguilla anguilla) in a large estuary of Western Europe inferred from acoustic telemetry |
title_fullStr |
Migration behaviour of silver eels (Anguilla anguilla) in a large estuary of Western Europe inferred from acoustic telemetry |
title_full_unstemmed |
Migration behaviour of silver eels (Anguilla anguilla) in a large estuary of Western Europe inferred from acoustic telemetry |
title_sort |
migration behaviour of silver eels (anguilla anguilla) in a large estuary of western europe inferred from acoustic telemetry |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.inrae.fr/hal-02630562 https://doi.org/10.1016/j.ecss.2013.11.023 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ISSN: 0272-7714 EISSN: 1096-0015 Estuarine, Coastal and Shelf Science https://hal.inrae.fr/hal-02630562 Estuarine, Coastal and Shelf Science, Elsevier, 2014, 137, pp.23-31. ⟨10.1016/j.ecss.2013.11.023⟩ http://www.journals.elsevier.com/estuarine-coastal-and-shelf-science/ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecss.2013.11.023 info:eu-repo/grantAgreement/EC/FP7/212133/EU/European Eels in the Atlantic: Assessment of Their Decline/EELIAD hal-02630562 https://hal.inrae.fr/hal-02630562 doi:10.1016/j.ecss.2013.11.023 PRODINRA: 261520 WOS: 000331507000003 |
op_doi |
https://doi.org/10.1016/j.ecss.2013.11.023 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
137 |
container_start_page |
23 |
op_container_end_page |
31 |
_version_ |
1766400418732048384 |