Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel
International audience Abundance and growth of the European eel from six small northern French estuaries during their growth phase were examined to explore variations according to the local habitat characteristics. The length–weight relationships and growth models fitted to length-at-age back-calcul...
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ftunivlcoteopale:oai:HAL:hal-04058418v1 2024-06-23T07:45:33+00:00 Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel Denis, Jérémy Mahé, Kélig 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) Unité 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) Parc Naturel Marins des Estuaires Picards et de la Mer d’Opale (DECISION N°2018-28 9 March 2018) European Maritime Fisheries Fund (PFEA621220CR0310022) Région Hauts de France (PFEA621220CR0310022) European Union (ERDF), the French Government, the Région Hauts-de-France and IFREMER, in the framework of the project CPER MARCO 2015–2020 (https://marco.univlittoral.fr/) 2022-10 https://ulco.hal.science/hal-04058418 https://ulco.hal.science/hal-04058418/document https://ulco.hal.science/hal-04058418/file/fishes-07-00213-v2.pdf https://doi.org/10.3390/fishes7050213 en eng HAL CCSD MDPI info:eu-repo/semantics/altIdentifier/doi/10.3390/fishes7050213 hal-04058418 https://ulco.hal.science/hal-04058418 https://ulco.hal.science/hal-04058418/document https://ulco.hal.science/hal-04058418/file/fishes-07-00213-v2.pdf doi:10.3390/fishes7050213 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2410-3888 Fishes https://ulco.hal.science/hal-04058418 Fishes, 2022, 7 (5), pp.213. ⟨10.3390/fishes7050213⟩ length–frequency distribution age sex-ratio hydro-morpho-sedimentary characteristics [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2022 ftunivlcoteopale https://doi.org/10.3390/fishes7050213 2024-06-06T23:33:00Z International audience Abundance and growth of the European eel from six small northern French estuaries during their growth phase were examined to explore variations according to the local habitat characteristics. The length–weight relationships and growth models fitted to length-at-age back-calculated otolith growth increments were used to compare the growth. Higher abundances were observed in the smaller estuaries (2.4 to 10.5 ind. fyke nets 24 h−1). The eel length ranged from 215–924 mm with an age range of 4–21 years. There was no significant difference in fish eel lengths or age except in the Liane estuary where the individuals were larger. The length–weight relationships showed an isometric or positive allometric growth in most estuaries. The Gompertz growth models, which best fits the growth, showed no significant differences between estuaries except for female eels from the Liane and the Somme estuaries where the growth performance index was higher. The estimated annual growth rate varied from 2.7 to 115.0 mm·yr−1 for female and from 4.4 to 90.5 mm·yr−1 for male. The present study shows that eels in the six estuaries had CPUE and growth rates similar to those previously reported in larger habitats. These results reinforce the idea that small estuaries are important habitats that contribute significantly to the eel population and, therefore, play an essential role in conservation strategies for European eel. Article in Journal/Newspaper Anguilla anguilla Université du Littoral Côte d'Opale portail Fishes 7 5 213 |
institution |
Open Polar |
collection |
Université du Littoral Côte d'Opale portail |
op_collection_id |
ftunivlcoteopale |
language |
English |
topic |
length–frequency distribution age sex-ratio hydro-morpho-sedimentary characteristics [SDV]Life Sciences [q-bio] |
spellingShingle |
length–frequency distribution age sex-ratio hydro-morpho-sedimentary characteristics [SDV]Life Sciences [q-bio] Denis, Jérémy Mahé, Kélig Amara, Rachid Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel |
topic_facet |
length–frequency distribution age sex-ratio hydro-morpho-sedimentary characteristics [SDV]Life Sciences [q-bio] |
description |
International audience Abundance and growth of the European eel from six small northern French estuaries during their growth phase were examined to explore variations according to the local habitat characteristics. The length–weight relationships and growth models fitted to length-at-age back-calculated otolith growth increments were used to compare the growth. Higher abundances were observed in the smaller estuaries (2.4 to 10.5 ind. fyke nets 24 h−1). The eel length ranged from 215–924 mm with an age range of 4–21 years. There was no significant difference in fish eel lengths or age except in the Liane estuary where the individuals were larger. The length–weight relationships showed an isometric or positive allometric growth in most estuaries. The Gompertz growth models, which best fits the growth, showed no significant differences between estuaries except for female eels from the Liane and the Somme estuaries where the growth performance index was higher. The estimated annual growth rate varied from 2.7 to 115.0 mm·yr−1 for female and from 4.4 to 90.5 mm·yr−1 for male. The present study shows that eels in the six estuaries had CPUE and growth rates similar to those previously reported in larger habitats. These results reinforce the idea that small estuaries are important habitats that contribute significantly to the eel population and, therefore, play an essential role in conservation strategies for European eel. |
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) Unité 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) Parc Naturel Marins des Estuaires Picards et de la Mer d’Opale (DECISION N°2018-28 9 March 2018) European Maritime Fisheries Fund (PFEA621220CR0310022) Région Hauts de France (PFEA621220CR0310022) European Union (ERDF), the French Government, the Région Hauts-de-France and IFREMER, in the framework of the project CPER MARCO 2015–2020 (https://marco.univlittoral.fr/) |
format |
Article in Journal/Newspaper |
author |
Denis, Jérémy Mahé, Kélig Amara, Rachid |
author_facet |
Denis, Jérémy Mahé, Kélig Amara, Rachid |
author_sort |
Denis, Jérémy |
title |
Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel |
title_short |
Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel |
title_full |
Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel |
title_fullStr |
Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel |
title_full_unstemmed |
Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel |
title_sort |
abundance and growth of the european eels (anguilla anguilla linnaeus, 1758) in small estuarine habitats from the eastern english channel |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://ulco.hal.science/hal-04058418 https://ulco.hal.science/hal-04058418/document https://ulco.hal.science/hal-04058418/file/fishes-07-00213-v2.pdf https://doi.org/10.3390/fishes7050213 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ISSN: 2410-3888 Fishes https://ulco.hal.science/hal-04058418 Fishes, 2022, 7 (5), pp.213. ⟨10.3390/fishes7050213⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3390/fishes7050213 hal-04058418 https://ulco.hal.science/hal-04058418 https://ulco.hal.science/hal-04058418/document https://ulco.hal.science/hal-04058418/file/fishes-07-00213-v2.pdf doi:10.3390/fishes7050213 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3390/fishes7050213 |
container_title |
Fishes |
container_volume |
7 |
container_issue |
5 |
container_start_page |
213 |
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1802640930806693888 |