Relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (Anguilla anguilla)
After Anguilla anguilla larvae reach the European coast, metamorphosing glass eels exhibit an estuarine migration phase and can potentially colonize the continental area. Associated behaviours to upstream movement in estuary and river basin differ strongly: passive tidal transport in estuary, active...
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ftdoajarticles:oai:doaj.org/article:3b7f3049228142a38728e851f85e66c3 2023-05-15T13:27:05+02:00 Relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (Anguilla anguilla) Bardonnet A. Labonne J. Laffite J. Garnier J. 2009-02-01T00:00:00Z https://doi.org/10.1051/kmae/2009001 https://doaj.org/article/3b7f3049228142a38728e851f85e66c3 EN eng EDP Sciences http://dx.doi.org/10.1051/kmae/2009001 https://doaj.org/toc/1961-9502 1961-9502 doi:10.1051/kmae/2009001 https://doaj.org/article/3b7f3049228142a38728e851f85e66c3 Knowledge and Management of Aquatic Ecosystems, Vol 0, Iss 390-391, p 02 (2009) body condition behaviour pigmentation migration colonization glass eel Aquaculture. Fisheries. Angling SH1-691 article 2009 ftdoajarticles https://doi.org/10.1051/kmae/2009001 2022-12-31T04:58:13Z After Anguilla anguilla larvae reach the European coast, metamorphosing glass eels exhibit an estuarine migration phase and can potentially colonize the continental area. Associated behaviours to upstream movement in estuary and river basin differ strongly: passive tidal transport in estuary, active swimming beyond the upstream tidal limit. Moreover, the migratory behaviour may shift towards a density-dependent dispersal beyond this limit. A positive relationship has previously been established between glass eels’ body condition and migratory behaviour in estuary and also higher in the river basin. An experiment was settled to test for the density-dependent versus migratory behaviour under controlled conditions. The relationships between some behaviours (swimming, grouping, feeding, and aggressiveness) and body condition was investigated at the individual level. Two controlled factors were crossed, leading to four combinations of high and low levels of food and temperature. The high level of food led to a lesser loss in body condition. Swimming activity was positively related to initial body condition and loss in body condition, but these two variables were not related to aggressiveness. We conclude that the density-dependent dispersal hypothesis was not reinforced by these present results. Article in Journal/Newspaper Anguilla anguilla Directory of Open Access Journals: DOAJ Articles Knowledge and Management of Aquatic Ecosystems 390-391 02 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
body condition behaviour pigmentation migration colonization glass eel Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
body condition behaviour pigmentation migration colonization glass eel Aquaculture. Fisheries. Angling SH1-691 Bardonnet A. Labonne J. Laffite J. Garnier J. Relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (Anguilla anguilla) |
topic_facet |
body condition behaviour pigmentation migration colonization glass eel Aquaculture. Fisheries. Angling SH1-691 |
description |
After Anguilla anguilla larvae reach the European coast, metamorphosing glass eels exhibit an estuarine migration phase and can potentially colonize the continental area. Associated behaviours to upstream movement in estuary and river basin differ strongly: passive tidal transport in estuary, active swimming beyond the upstream tidal limit. Moreover, the migratory behaviour may shift towards a density-dependent dispersal beyond this limit. A positive relationship has previously been established between glass eels’ body condition and migratory behaviour in estuary and also higher in the river basin. An experiment was settled to test for the density-dependent versus migratory behaviour under controlled conditions. The relationships between some behaviours (swimming, grouping, feeding, and aggressiveness) and body condition was investigated at the individual level. Two controlled factors were crossed, leading to four combinations of high and low levels of food and temperature. The high level of food led to a lesser loss in body condition. Swimming activity was positively related to initial body condition and loss in body condition, but these two variables were not related to aggressiveness. We conclude that the density-dependent dispersal hypothesis was not reinforced by these present results. |
format |
Article in Journal/Newspaper |
author |
Bardonnet A. Labonne J. Laffite J. Garnier J. |
author_facet |
Bardonnet A. Labonne J. Laffite J. Garnier J. |
author_sort |
Bardonnet A. |
title |
Relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (Anguilla anguilla) |
title_short |
Relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (Anguilla anguilla) |
title_full |
Relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (Anguilla anguilla) |
title_fullStr |
Relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (Anguilla anguilla) |
title_full_unstemmed |
Relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (Anguilla anguilla) |
title_sort |
relationships between individual behaviour and morphometry under different experimental conditions of temperature and feeding in glass eels (anguilla anguilla) |
publisher |
EDP Sciences |
publishDate |
2009 |
url |
https://doi.org/10.1051/kmae/2009001 https://doaj.org/article/3b7f3049228142a38728e851f85e66c3 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Knowledge and Management of Aquatic Ecosystems, Vol 0, Iss 390-391, p 02 (2009) |
op_relation |
http://dx.doi.org/10.1051/kmae/2009001 https://doaj.org/toc/1961-9502 1961-9502 doi:10.1051/kmae/2009001 https://doaj.org/article/3b7f3049228142a38728e851f85e66c3 |
op_doi |
https://doi.org/10.1051/kmae/2009001 |
container_title |
Knowledge and Management of Aquatic Ecosystems |
container_issue |
390-391 |
container_start_page |
02 |
_version_ |
1766396326265749504 |