Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam
The temporal migration patterns of European glass eel Anguilla anguilla at the Couesnon estuarine dam (Mont-Saint-Michel Bay, France)were examined in winter and spring 2004 and 2005. The dam which is located close to the river mouth constitutes a major obstacle for upstreammigrating glass eels. The...
Published in: | Estuarine, Coastal and Shelf Science |
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Online Access: | http://oatao.univ-toulouse.fr/6202/ http://oatao.univ-toulouse.fr/6202/1/Laffaille_6202.pdf https://doi.org/10.1016/j.ecss.2006.12.011 |
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ftunivtoulouseoa:oai:oatao.univ-toulouse.fr:6202 2023-05-15T13:27:09+02:00 Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam Laffaille, Pascal Caraguel, Jean-Marie Legault, Antoine Museum National d'Histoire Naturelle - MNHN (FRANCE) Fish-Pass (FRANCE) Université de Rennes 1 (FRANCE) 2007-06 application/pdf http://oatao.univ-toulouse.fr/6202/ http://oatao.univ-toulouse.fr/6202/1/Laffaille_6202.pdf https://doi.org/10.1016/j.ecss.2006.12.011 en eng Elsevier http://oatao.univ-toulouse.fr/6202/1/Laffaille_6202.pdf HAL : hal-00793400 Laffaille, Pascal and Caraguel, Jean-Marie and Legault, Antoine. Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam. (2007) Estuarine, Coastal and Shelf Science, 73 (1-2). 81-90. ISSN 0272-7714 info:eu-repo/semantics/openAccess Biodiversité Ecosystèmes European eel Catadromy Hydraulic work Management Dam Article PeerReviewed info:eu-repo/semantics/article 2007 ftunivtoulouseoa https://doi.org/10.1016/j.ecss.2006.12.011 2019-08-29T11:17:44Z The temporal migration patterns of European glass eel Anguilla anguilla at the Couesnon estuarine dam (Mont-Saint-Michel Bay, France)were examined in winter and spring 2004 and 2005. The dam which is located close to the river mouth constitutes a major obstacle for upstreammigrating glass eels. The migration was observed at different temporal scales, from within individual tides to complete tidal cycles between successive spring tides. The maximum number of glass eels arrived downstream of the dam at the beginning and in the middle of the flood tide. Glass eels migrated through the dam openings preferentially from the middle of the flood to the beginning of the ebb tide. Eel densities were highest during the second tide of each tide cycle that arrived at the estuarine dam and when the difference in water level between upstream and downstream of the dam was greatest, particularly at the end of the flood. Analysis of the influence of each environmental factor provided a good prediction of the glass eel recruitment peaks and, therefore, of the most favourable temporal windows for their migration. The water level and temperature were the most important environmental factors. These results provide the information needed for a dam-management program that is compatible with glass eel migration. Article in Journal/Newspaper Anguilla anguilla OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse) Estuarine, Coastal and Shelf Science 73 1-2 81 90 |
institution |
Open Polar |
collection |
OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse) |
op_collection_id |
ftunivtoulouseoa |
language |
English |
topic |
Biodiversité Ecosystèmes European eel Catadromy Hydraulic work Management Dam |
spellingShingle |
Biodiversité Ecosystèmes European eel Catadromy Hydraulic work Management Dam Laffaille, Pascal Caraguel, Jean-Marie Legault, Antoine Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam |
topic_facet |
Biodiversité Ecosystèmes European eel Catadromy Hydraulic work Management Dam |
description |
The temporal migration patterns of European glass eel Anguilla anguilla at the Couesnon estuarine dam (Mont-Saint-Michel Bay, France)were examined in winter and spring 2004 and 2005. The dam which is located close to the river mouth constitutes a major obstacle for upstreammigrating glass eels. The migration was observed at different temporal scales, from within individual tides to complete tidal cycles between successive spring tides. The maximum number of glass eels arrived downstream of the dam at the beginning and in the middle of the flood tide. Glass eels migrated through the dam openings preferentially from the middle of the flood to the beginning of the ebb tide. Eel densities were highest during the second tide of each tide cycle that arrived at the estuarine dam and when the difference in water level between upstream and downstream of the dam was greatest, particularly at the end of the flood. Analysis of the influence of each environmental factor provided a good prediction of the glass eel recruitment peaks and, therefore, of the most favourable temporal windows for their migration. The water level and temperature were the most important environmental factors. These results provide the information needed for a dam-management program that is compatible with glass eel migration. |
author2 |
Museum National d'Histoire Naturelle - MNHN (FRANCE) Fish-Pass (FRANCE) Université de Rennes 1 (FRANCE) |
format |
Article in Journal/Newspaper |
author |
Laffaille, Pascal Caraguel, Jean-Marie Legault, Antoine |
author_facet |
Laffaille, Pascal Caraguel, Jean-Marie Legault, Antoine |
author_sort |
Laffaille, Pascal |
title |
Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam |
title_short |
Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam |
title_full |
Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam |
title_fullStr |
Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam |
title_full_unstemmed |
Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam |
title_sort |
temporal patterns in the upstream migration of european eels (anguilla anguilla) at the couesnon estuarine dam |
publisher |
Elsevier |
publishDate |
2007 |
url |
http://oatao.univ-toulouse.fr/6202/ http://oatao.univ-toulouse.fr/6202/1/Laffaille_6202.pdf https://doi.org/10.1016/j.ecss.2006.12.011 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
http://oatao.univ-toulouse.fr/6202/1/Laffaille_6202.pdf HAL : hal-00793400 Laffaille, Pascal and Caraguel, Jean-Marie and Legault, Antoine. Temporal patterns in the upstream migration of European eels (Anguilla anguilla) at the Couesnon estuarine dam. (2007) Estuarine, Coastal and Shelf Science, 73 (1-2). 81-90. ISSN 0272-7714 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.ecss.2006.12.011 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
73 |
container_issue |
1-2 |
container_start_page |
81 |
op_container_end_page |
90 |
_version_ |
1766396770421571584 |