Article (Scientific journals)
A bit of quiet between the migrations: the resting life of the European eel during their freshwater growth phase in a small stream
Ovidio, Michaël; Seredynski, Aurore; Philippart, Jean-Claude et al.
2013In Aquatic Ecology, 47, p. 291-301
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Keywords :
Mobility; Home range; Habitat choice; Minimum flow; Telemetry
Abstract :
[en] The movements and habitat use of resident yellow eels were studied in a stream stretch having both natural and minimum flow zones. N = 12 individuals (total length 505–802 mm) were surgically tagged with radio transmitters and released at their capture sites. They were located using manual radio receivers during the daytime from 2 to 5 days/ week over periods ranging from 200 to 329 days, for a total of 1,098 positions. Eels showed home ranges ranging from 33 to 341 m (median value, 62 m), displayed strong fidelity to sites and demonstrated a great degree of plasticity in habitat use. Eels were slightly mobile throughout the year, but their movements were season and temperature dependent, with a maximum during the spring (mean water temperature, 12 C) and a minimum in winter (3 C). Stones and roots (utilization rate greater than 50 % of eels for more than 30 % of location days) were significantly the most frequently used habitats. Between the two flow zones, the natural flow was the most occupied, with a significantly higher proportion of resident eels(66.7 % of radio-tagged yellow eels) and longer occupation (81 % of location days) than the minimum flow zone with less suitable habitats.
Research Center/Unit :
AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège
Disciplines :
Zoology
Author, co-author :
Ovidio, Michaël  ;  Université de Liège - ULiège > Biologie, Ecologie et Evolution > Laboratoire de Démographie des Poissons et d'Hydroécologie (LDPH)
Seredynski, Aurore ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau
Philippart, Jean-Claude ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale
Nzau Matondo, Billy  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Démographie des poissons et hydroécologie
Language :
English
Title :
A bit of quiet between the migrations: the resting life of the European eel during their freshwater growth phase in a small stream
Publication date :
13 June 2013
Journal title :
Aquatic Ecology
ISSN :
1386-2588
eISSN :
1573-5125
Publisher :
Springer Science & Business Media B.V.
Volume :
47
Pages :
291-301
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
SPW (DCENN) - Fonds Européen pour la Pêche (FEP)
Available on ORBi :
since 14 June 2013

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