Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel
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 inc...
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Online Access: | https://archimer.ifremer.fr/doc/00789/90053/95648.pdf https://archimer.ifremer.fr/doc/00789/90053/95649.zip https://doi.org/10.3390/fishes7050213 https://archimer.ifremer.fr/doc/00789/90053/ |
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ftarchimer:oai:archimer.ifremer.fr:90053 2023-05-15T13:27:56+02:00 Abundance and Growth of the European Eels (Anguilla anguilla Linnaeus, 1758) in Small Estuarine Habitats from the Eastern English Channel Denis, Jeremy Mahé, Kelig Amara, Rachid 2022-10 application/pdf https://archimer.ifremer.fr/doc/00789/90053/95648.pdf https://archimer.ifremer.fr/doc/00789/90053/95649.zip https://doi.org/10.3390/fishes7050213 https://archimer.ifremer.fr/doc/00789/90053/ eng eng MDPI AG https://archimer.ifremer.fr/doc/00789/90053/95648.pdf https://archimer.ifremer.fr/doc/00789/90053/95649.zip doi:10.3390/fishes7050213 https://archimer.ifremer.fr/doc/00789/90053/ info:eu-repo/semantics/openAccess restricted use Fishes (2410-3888) (MDPI AG), 2022-10 , Vol. 7 , N. 5 , P. 213 (18p.) length-frequency distribution age sex-ratio hydro-morpho-sedimentary characteristics text Publication info:eu-repo/semantics/article 2022 ftarchimer https://doi.org/10.3390/fishes7050213 2022-11-08T23:50:27Z 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 Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Fishes 7 5 213 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
length-frequency distribution age sex-ratio hydro-morpho-sedimentary characteristics |
spellingShingle |
length-frequency distribution age sex-ratio hydro-morpho-sedimentary characteristics Denis, Jeremy Mahé, Kelig 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 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Denis, Jeremy Mahé, Kelig Amara, Rachid |
author_facet |
Denis, Jeremy Mahé, Kelig Amara, Rachid |
author_sort |
Denis, Jeremy |
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 |
MDPI AG |
publishDate |
2022 |
url |
https://archimer.ifremer.fr/doc/00789/90053/95648.pdf https://archimer.ifremer.fr/doc/00789/90053/95649.zip https://doi.org/10.3390/fishes7050213 https://archimer.ifremer.fr/doc/00789/90053/ |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Fishes (2410-3888) (MDPI AG), 2022-10 , Vol. 7 , N. 5 , P. 213 (18p.) |
op_relation |
https://archimer.ifremer.fr/doc/00789/90053/95648.pdf https://archimer.ifremer.fr/doc/00789/90053/95649.zip doi:10.3390/fishes7050213 https://archimer.ifremer.fr/doc/00789/90053/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.3390/fishes7050213 |
container_title |
Fishes |
container_volume |
7 |
container_issue |
5 |
container_start_page |
213 |
_version_ |
1766401266387255296 |