Modeling individual growth trajectories of the female European eel in relation to temperature and habitat-use history in the Gironde River, France
Although the average growth rate of European eel is known to be generally dependent on temperature and habitat at the population scale, large variation in growth among eels in a single river basin can also be widely observed. In this study, individual growth trajectories of female European eels in t...
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ftcemoa:oai:irsteadoc.irstea.fr:PUB00039169 2023-05-15T13:28:07+02:00 Modeling individual growth trajectories of the female European eel in relation to temperature and habitat-use history in the Gironde River, France Yokouchi, K. Daverat, F. IRSTEA BORDEAUX UR EPBX FRA GIRONDE ESTUAIRE 2013 application/pdf https://irsteadoc.irstea.fr/cemoa/PUB00039169 Anglais eng http://dx.doi.org/10.3354/ab00526 https://irsteadoc.irstea.fr/cemoa/PUB00039169 Date de dépôt: 2013-10-15 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). 32339 ANGUILLA ANGUILLA HABITAT MODELISATION ESTUAIRE DYNAMIQUE DE POPULATION MODELE DE CROISSANCE HABITATS MODELLING ESTUARIES POPULATION DYNAMICS GROWTH MODEL Article de revue scientifique à comité de lecture 2013 ftcemoa https://doi.org/10.3354/ab00526 2021-06-29T10:26:59Z Although the average growth rate of European eel is known to be generally dependent on temperature and habitat at the population scale, large variation in growth among eels in a single river basin can also be widely observed. In this study, individual growth trajectories of female European eels in the Gironde River basin, France, were modeled with habitat-use histories and thermal variations in relation to regional climatic events such as the heat wave in 2003 observed in SW Europe. A mixed-effects model was used to take into account the repeated measures of individual growth of 173 female eels in 1993 to 2003, obtained from otolith structure and chemistry. Temperature effect was tested using a proxy of efficient temperature for growth between 2 thermal thresholds in a year. The models with thresholds for growth between 12 and 15°C (lower) and 18°C (higher) were selected considering Akaike's information criterion. Individual annual growth estimates were higher in the estuary habitat than in the river habitat. Estimated growth was higher when eels shifted habitats between freshwater and brackish water or seawater. The years 1999 and 2001 had, respectively, the lowest and highest temperature proxy value, showing that a longer growing season (moderate summer/warm winter) had a positive effect on growth. The 2003 heat wave had a negative effect on eel growth, reflected by the lower temperature proxy value. The same approach could be used in the future to estimate the effect of global climate change on the growth and distribution of eels at local and regional scales. Article in Journal/Newspaper Anguilla anguilla Irstea Publications et Bases documentaires (Irstea@doc/CemOA) Aquatic Biology 19 2 185 193 |
institution |
Open Polar |
collection |
Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
op_collection_id |
ftcemoa |
language |
English |
topic |
ANGUILLA ANGUILLA HABITAT MODELISATION ESTUAIRE DYNAMIQUE DE POPULATION MODELE DE CROISSANCE HABITATS MODELLING ESTUARIES POPULATION DYNAMICS GROWTH MODEL |
spellingShingle |
ANGUILLA ANGUILLA HABITAT MODELISATION ESTUAIRE DYNAMIQUE DE POPULATION MODELE DE CROISSANCE HABITATS MODELLING ESTUARIES POPULATION DYNAMICS GROWTH MODEL Yokouchi, K. Daverat, F. Modeling individual growth trajectories of the female European eel in relation to temperature and habitat-use history in the Gironde River, France |
topic_facet |
ANGUILLA ANGUILLA HABITAT MODELISATION ESTUAIRE DYNAMIQUE DE POPULATION MODELE DE CROISSANCE HABITATS MODELLING ESTUARIES POPULATION DYNAMICS GROWTH MODEL |
description |
Although the average growth rate of European eel is known to be generally dependent on temperature and habitat at the population scale, large variation in growth among eels in a single river basin can also be widely observed. In this study, individual growth trajectories of female European eels in the Gironde River basin, France, were modeled with habitat-use histories and thermal variations in relation to regional climatic events such as the heat wave in 2003 observed in SW Europe. A mixed-effects model was used to take into account the repeated measures of individual growth of 173 female eels in 1993 to 2003, obtained from otolith structure and chemistry. Temperature effect was tested using a proxy of efficient temperature for growth between 2 thermal thresholds in a year. The models with thresholds for growth between 12 and 15°C (lower) and 18°C (higher) were selected considering Akaike's information criterion. Individual annual growth estimates were higher in the estuary habitat than in the river habitat. Estimated growth was higher when eels shifted habitats between freshwater and brackish water or seawater. The years 1999 and 2001 had, respectively, the lowest and highest temperature proxy value, showing that a longer growing season (moderate summer/warm winter) had a positive effect on growth. The 2003 heat wave had a negative effect on eel growth, reflected by the lower temperature proxy value. The same approach could be used in the future to estimate the effect of global climate change on the growth and distribution of eels at local and regional scales. |
author2 |
IRSTEA BORDEAUX UR EPBX FRA |
format |
Article in Journal/Newspaper |
author |
Yokouchi, K. Daverat, F. |
author_facet |
Yokouchi, K. Daverat, F. |
author_sort |
Yokouchi, K. |
title |
Modeling individual growth trajectories of the female European eel in relation to temperature and habitat-use history in the Gironde River, France |
title_short |
Modeling individual growth trajectories of the female European eel in relation to temperature and habitat-use history in the Gironde River, France |
title_full |
Modeling individual growth trajectories of the female European eel in relation to temperature and habitat-use history in the Gironde River, France |
title_fullStr |
Modeling individual growth trajectories of the female European eel in relation to temperature and habitat-use history in the Gironde River, France |
title_full_unstemmed |
Modeling individual growth trajectories of the female European eel in relation to temperature and habitat-use history in the Gironde River, France |
title_sort |
modeling individual growth trajectories of the female european eel in relation to temperature and habitat-use history in the gironde river, france |
publishDate |
2013 |
url |
https://irsteadoc.irstea.fr/cemoa/PUB00039169 |
op_coverage |
GIRONDE ESTUAIRE |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
32339 |
op_relation |
http://dx.doi.org/10.3354/ab00526 https://irsteadoc.irstea.fr/cemoa/PUB00039169 |
op_rights |
Date de dépôt: 2013-10-15 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). |
op_doi |
https://doi.org/10.3354/ab00526 |
container_title |
Aquatic Biology |
container_volume |
19 |
container_issue |
2 |
container_start_page |
185 |
op_container_end_page |
193 |
_version_ |
1766402296021778432 |