To boldly climb: behavioural and cognitive differences in migrating European glass eels
European eel (Anguilla anguilla) is a catadromous fish species that received substantial attention as its population has markedly declined in the last three decades. The possible causes of this decline include habitat fragmentation factors such as dams and weirs. In some cases, these obstacles are e...
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ftcemoa:oai:irsteadoc.irstea.fr:PUB00048044 2023-05-15T13:27:20+02:00 To boldly climb: behavioural and cognitive differences in migrating European glass eels Podgorniak, T. Blanchet, S. De Oliveira, E. Daverat, F. Pierron, F. IRSTEA BORDEAUX UR EABX FRA CNRS STATION D'ECOLOGIE EXPERIMENTALE MOULIS FRA EDF R&D LNHE HYNES CHATOU FRA UNIVERSITE DE BORDEAUX CNRS UMR 5805 EPOC TALENCE FRA 2016 application/pdf https://irsteadoc.irstea.fr/cemoa/PUB00048044 Anglais eng http://dx.doi.org/10.1098/rsos.150665 http://rsos.royalsocietypublishing.org/content/3/1/150665 https://irsteadoc.irstea.fr/cemoa/PUB00048044 Date de dépôt: 2016-03-21 - 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). 42970 BARRAGE ANGUILLA ANGUILLA COMPORTEMENT ANIMAL DYNAMIQUE DE POPULATION OBSTACLE A LA MIGRATION DAMS ANIMAL BEHAVIOUR POPULATION DYNAMICS Article de revue scientifique à comité de lecture 2016 ftcemoa https://doi.org/10.1098/rsos.150665 2021-06-29T11:20:46Z European eel (Anguilla anguilla) is a catadromous fish species that received substantial attention as its population has markedly declined in the last three decades. The possible causes of this decline include habitat fragmentation factors such as dams and weirs. In some cases, these obstacles are equipped with fish friendly passage devices that may select young eels according to their climbing behaviour. We tested how individual climbing tendency was related to the event of fishway passage experienced in the field and classified fish climbing profiles as climbing 'leaders', 'followers', 'finishers' and 'no climbers'. Moreover, we analysed the brain transcription level of genes related to neurogenesis and synaptic plasticity and compared it to climbing profiles.We found that fish from the upstream segments of an impounded river had a higher climbing propensity. Their behaviour was also more repeatable throughout the whole test than the obstacle-naive fish from the downstream segment. Moreover, we found that boldly climbing 'leaders' had lower levels of transcription of synapse-related genes than the climbing 'followers'. These differences could be related to coping styles of fish, where proactive 'leaders' express a routine and risky behaviour, whereas reactive fish need an environmental assessment before exploratory behaviour. Our study showed that differences in climbing propensity exist in glass eels separated by water obstacles. Moreover, eels could adopt climbing different strategies according to the way they deal with environmental stress and to the cognitive abilities they possess. Article in Journal/Newspaper Anguilla anguilla European eel Irstea Publications et Bases documentaires (Irstea@doc/CemOA) Royal Society Open Science 3 1 150665 |
institution |
Open Polar |
collection |
Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
op_collection_id |
ftcemoa |
language |
English |
topic |
BARRAGE ANGUILLA ANGUILLA COMPORTEMENT ANIMAL DYNAMIQUE DE POPULATION OBSTACLE A LA MIGRATION DAMS ANIMAL BEHAVIOUR POPULATION DYNAMICS |
spellingShingle |
BARRAGE ANGUILLA ANGUILLA COMPORTEMENT ANIMAL DYNAMIQUE DE POPULATION OBSTACLE A LA MIGRATION DAMS ANIMAL BEHAVIOUR POPULATION DYNAMICS Podgorniak, T. Blanchet, S. De Oliveira, E. Daverat, F. Pierron, F. To boldly climb: behavioural and cognitive differences in migrating European glass eels |
topic_facet |
BARRAGE ANGUILLA ANGUILLA COMPORTEMENT ANIMAL DYNAMIQUE DE POPULATION OBSTACLE A LA MIGRATION DAMS ANIMAL BEHAVIOUR POPULATION DYNAMICS |
description |
European eel (Anguilla anguilla) is a catadromous fish species that received substantial attention as its population has markedly declined in the last three decades. The possible causes of this decline include habitat fragmentation factors such as dams and weirs. In some cases, these obstacles are equipped with fish friendly passage devices that may select young eels according to their climbing behaviour. We tested how individual climbing tendency was related to the event of fishway passage experienced in the field and classified fish climbing profiles as climbing 'leaders', 'followers', 'finishers' and 'no climbers'. Moreover, we analysed the brain transcription level of genes related to neurogenesis and synaptic plasticity and compared it to climbing profiles.We found that fish from the upstream segments of an impounded river had a higher climbing propensity. Their behaviour was also more repeatable throughout the whole test than the obstacle-naive fish from the downstream segment. Moreover, we found that boldly climbing 'leaders' had lower levels of transcription of synapse-related genes than the climbing 'followers'. These differences could be related to coping styles of fish, where proactive 'leaders' express a routine and risky behaviour, whereas reactive fish need an environmental assessment before exploratory behaviour. Our study showed that differences in climbing propensity exist in glass eels separated by water obstacles. Moreover, eels could adopt climbing different strategies according to the way they deal with environmental stress and to the cognitive abilities they possess. |
author2 |
IRSTEA BORDEAUX UR EABX FRA CNRS STATION D'ECOLOGIE EXPERIMENTALE MOULIS FRA EDF R&D LNHE HYNES CHATOU FRA UNIVERSITE DE BORDEAUX CNRS UMR 5805 EPOC TALENCE FRA |
format |
Article in Journal/Newspaper |
author |
Podgorniak, T. Blanchet, S. De Oliveira, E. Daverat, F. Pierron, F. |
author_facet |
Podgorniak, T. Blanchet, S. De Oliveira, E. Daverat, F. Pierron, F. |
author_sort |
Podgorniak, T. |
title |
To boldly climb: behavioural and cognitive differences in migrating European glass eels |
title_short |
To boldly climb: behavioural and cognitive differences in migrating European glass eels |
title_full |
To boldly climb: behavioural and cognitive differences in migrating European glass eels |
title_fullStr |
To boldly climb: behavioural and cognitive differences in migrating European glass eels |
title_full_unstemmed |
To boldly climb: behavioural and cognitive differences in migrating European glass eels |
title_sort |
to boldly climb: behavioural and cognitive differences in migrating european glass eels |
publishDate |
2016 |
url |
https://irsteadoc.irstea.fr/cemoa/PUB00048044 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_source |
42970 |
op_relation |
http://dx.doi.org/10.1098/rsos.150665 http://rsos.royalsocietypublishing.org/content/3/1/150665 https://irsteadoc.irstea.fr/cemoa/PUB00048044 |
op_rights |
Date de dépôt: 2016-03-21 - 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/10.1098/rsos.150665 |
container_title |
Royal Society Open Science |
container_volume |
3 |
container_issue |
1 |
container_start_page |
150665 |
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1766397755929919488 |