Relationship between habitat use and individual condition of European eel (Anguilla anguilla) in six estuaries of the eastern English Channel (North-eastern Atlantic ocean)
International audience Brackish habitats are considered important for the facultatively catadromous European eel, but knowledge of eel habitat use strategies and the consequences on their condition, particularly in the estuaries areas, is limited and yet necessary for understanding some features suc...
Published in: | Estuarine, Coastal and Shelf Science |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2023
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Subjects: | |
Online Access: | https://hal.science/hal-04174448 https://doi.org/10.1016/j.ecss.2023.108446 |
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ftccsdartic:oai:HAL:hal-04174448v1 |
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openpolar |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Lipid content Health status Hepatosomatic index Otolith microchemistry Environmental history Fulton condition factor K [SDV]Life Sciences [q-bio] [CHIM]Chemical Sciences [CHIM.ANAL]Chemical Sciences/Analytical chemistry [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Lipid content Health status Hepatosomatic index Otolith microchemistry Environmental history Fulton condition factor K [SDV]Life Sciences [q-bio] [CHIM]Chemical Sciences [CHIM.ANAL]Chemical Sciences/Analytical chemistry [SDE.BE]Environmental Sciences/Biodiversity and Ecology Denis, Jérémy Mahé, Kélig Tabouret, Hélène Rabhi, Khalef Boutin, Kévin Diop, Mamadou Amara, Rachid Relationship between habitat use and individual condition of European eel (Anguilla anguilla) in six estuaries of the eastern English Channel (North-eastern Atlantic ocean) |
topic_facet |
Lipid content Health status Hepatosomatic index Otolith microchemistry Environmental history Fulton condition factor K [SDV]Life Sciences [q-bio] [CHIM]Chemical Sciences [CHIM.ANAL]Chemical Sciences/Analytical chemistry [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Brackish habitats are considered important for the facultatively catadromous European eel, but knowledge of eel habitat use strategies and the consequences on their condition, particularly in the estuaries areas, is limited and yet necessary for understanding some features such as growth and maturation in the different habitats that eel inhabit during the continental phase, that might also support assessment and management of local stocks, and contribute to the stock-wide assessment of this panmictic species. This study aimed to characterise and compare the condition of European eels according to their habitat use strategies and local estuarine characteristics. Eels were collected along the salinity gradient in six small and medium-sized estuaries located along the French coast in the eastern English Channel (i.e. the Slack, Wimereux, Liane, Canche, Authie and Somme estuaries). Four condition indices (i.e. Fulton condition factor K, lipid content, hepatosomatic index and health status) were measured on 119 individuals to explore variation with habitat characteristics at the small geographical scale and their habitat use strategies. Eel condition showed clear spatial differences between the six estuaries, with better condition in smaller estuaries. The spatial differences in eel condition appear to be related to variations in their diet composition, corresponding to different availability of macrozoobenthos prey among sites, in turn due to the local hydro-morpho-sedimentary characteristics. Environmental history and movements were reconstructed from the Sr:Ca and Ba:Ca ratios of otoliths from eel samples (N = 37) in both small- and medium-sized estuaries. The Sr:Ca and Ba:Ca ratios were used to distinguish the habitat use strategies and showed that both estuaries had a high proportion of resident eels (81%). Within each estuary, the Sr:Ca and Ba:Ca ratios were sufficiently contrasted to track movements of estuarine resident eels between three resident sectors (i.e. upper, middle and lower ... |
author2 |
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) Université du Littoral Côte d'Opale (ULCO) Laboratoire Ressources Halieutiques de Boulogne (LRHBL) Halieutique Manche Mer du Nord (HMMN) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM) Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Parc Naturel Marins des Estuaires Picards et de la Mer d’Opale (DECISION N◦2018–28 9 March 2018) Région Hauts de France (PFEA621220CR0310022) European Union (ERDF), the French Government, the Reégion Hauts-de-France and IFREMER, in the framework of the project CPER MARCO 2015–2020 (https://marco.univlittoral.fr/) ANR-21-EXES-0011,IFSEA,Transdisciplinary graduate school for marIne, Fisheries and SEAfood sciences(2021) European Project: PFEA621220CR0310022 |
format |
Article in Journal/Newspaper |
author |
Denis, Jérémy Mahé, Kélig Tabouret, Hélène Rabhi, Khalef Boutin, Kévin Diop, Mamadou Amara, Rachid |
author_facet |
Denis, Jérémy Mahé, Kélig Tabouret, Hélène Rabhi, Khalef Boutin, Kévin Diop, Mamadou Amara, Rachid |
author_sort |
Denis, Jérémy |
title |
Relationship between habitat use and individual condition of European eel (Anguilla anguilla) in six estuaries of the eastern English Channel (North-eastern Atlantic ocean) |
title_short |
Relationship between habitat use and individual condition of European eel (Anguilla anguilla) in six estuaries of the eastern English Channel (North-eastern Atlantic ocean) |
title_full |
Relationship between habitat use and individual condition of European eel (Anguilla anguilla) in six estuaries of the eastern English Channel (North-eastern Atlantic ocean) |
title_fullStr |
Relationship between habitat use and individual condition of European eel (Anguilla anguilla) in six estuaries of the eastern English Channel (North-eastern Atlantic ocean) |
title_full_unstemmed |
Relationship between habitat use and individual condition of European eel (Anguilla anguilla) in six estuaries of the eastern English Channel (North-eastern Atlantic ocean) |
title_sort |
relationship between habitat use and individual condition of european eel (anguilla anguilla) in six estuaries of the eastern english channel (north-eastern atlantic ocean) |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04174448 https://doi.org/10.1016/j.ecss.2023.108446 |
long_lat |
ENVELOPE(-144.900,-144.900,-76.883,-76.883) |
geographic |
Fulton |
geographic_facet |
Fulton |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_source |
ISSN: 0272-7714 EISSN: 1096-0015 Estuarine, Coastal and Shelf Science https://hal.science/hal-04174448 Estuarine, Coastal and Shelf Science, 2023, 291, pp.108446. ⟨10.1016/j.ecss.2023.108446⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecss.2023.108446 info:eu-repo/grantAgreement//PFEA621220CR0310022/EU/European Maritime Fisheries Fund/ hal-04174448 https://hal.science/hal-04174448 doi:10.1016/j.ecss.2023.108446 |
op_doi |
https://doi.org/10.1016/j.ecss.2023.108446 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
291 |
container_start_page |
108446 |
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1792043574493184000 |
spelling |
ftccsdartic:oai:HAL:hal-04174448v1 2024-02-27T08:33:02+00:00 Relationship between habitat use and individual condition of European eel (Anguilla anguilla) in six estuaries of the eastern English Channel (North-eastern Atlantic ocean) Denis, Jérémy Mahé, Kélig Tabouret, Hélène Rabhi, Khalef Boutin, Kévin Diop, Mamadou Amara, Rachid Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) Université du Littoral Côte d'Opale (ULCO) Laboratoire Ressources Halieutiques de Boulogne (LRHBL) Halieutique Manche Mer du Nord (HMMN) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM) Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Parc Naturel Marins des Estuaires Picards et de la Mer d’Opale (DECISION N◦2018–28 9 March 2018) Région Hauts de France (PFEA621220CR0310022) European Union (ERDF), the French Government, the Reégion Hauts-de-France and IFREMER, in the framework of the project CPER MARCO 2015–2020 (https://marco.univlittoral.fr/) ANR-21-EXES-0011,IFSEA,Transdisciplinary graduate school for marIne, Fisheries and SEAfood sciences(2021) European Project: PFEA621220CR0310022 2023-09-30 https://hal.science/hal-04174448 https://doi.org/10.1016/j.ecss.2023.108446 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecss.2023.108446 info:eu-repo/grantAgreement//PFEA621220CR0310022/EU/European Maritime Fisheries Fund/ hal-04174448 https://hal.science/hal-04174448 doi:10.1016/j.ecss.2023.108446 ISSN: 0272-7714 EISSN: 1096-0015 Estuarine, Coastal and Shelf Science https://hal.science/hal-04174448 Estuarine, Coastal and Shelf Science, 2023, 291, pp.108446. ⟨10.1016/j.ecss.2023.108446⟩ Lipid content Health status Hepatosomatic index Otolith microchemistry Environmental history Fulton condition factor K [SDV]Life Sciences [q-bio] [CHIM]Chemical Sciences [CHIM.ANAL]Chemical Sciences/Analytical chemistry [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2023 ftccsdartic https://doi.org/10.1016/j.ecss.2023.108446 2024-01-28T00:37:46Z International audience Brackish habitats are considered important for the facultatively catadromous European eel, but knowledge of eel habitat use strategies and the consequences on their condition, particularly in the estuaries areas, is limited and yet necessary for understanding some features such as growth and maturation in the different habitats that eel inhabit during the continental phase, that might also support assessment and management of local stocks, and contribute to the stock-wide assessment of this panmictic species. This study aimed to characterise and compare the condition of European eels according to their habitat use strategies and local estuarine characteristics. Eels were collected along the salinity gradient in six small and medium-sized estuaries located along the French coast in the eastern English Channel (i.e. the Slack, Wimereux, Liane, Canche, Authie and Somme estuaries). Four condition indices (i.e. Fulton condition factor K, lipid content, hepatosomatic index and health status) were measured on 119 individuals to explore variation with habitat characteristics at the small geographical scale and their habitat use strategies. Eel condition showed clear spatial differences between the six estuaries, with better condition in smaller estuaries. The spatial differences in eel condition appear to be related to variations in their diet composition, corresponding to different availability of macrozoobenthos prey among sites, in turn due to the local hydro-morpho-sedimentary characteristics. Environmental history and movements were reconstructed from the Sr:Ca and Ba:Ca ratios of otoliths from eel samples (N = 37) in both small- and medium-sized estuaries. The Sr:Ca and Ba:Ca ratios were used to distinguish the habitat use strategies and showed that both estuaries had a high proportion of resident eels (81%). Within each estuary, the Sr:Ca and Ba:Ca ratios were sufficiently contrasted to track movements of estuarine resident eels between three resident sectors (i.e. upper, middle and lower ... Article in Journal/Newspaper Anguilla anguilla European eel Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Fulton ENVELOPE(-144.900,-144.900,-76.883,-76.883) Estuarine, Coastal and Shelf Science 291 108446 |