Article (Scientific journals)
Individual movements, home ranges and habitat use by native rheophilic cyprinids and non-native catfish in a large regulated river
Capra, Hervé; Pella, Hervé; Ovidio, Michaël
2018In Fisheries Management and Ecology, (25), p. 136-149
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Keywords :
barbel; catfish; chub; habitat use; seasonal mobility; home range
Abstract :
[en] The mobility patterns of two native species, barbel, Barbus barbus (L.) and chub, Squalius cephalus (L.), and of one non-native fish species, the catfish Silurus glanis (L.), were assessed on a 35.5-km reach of the Upper Rhône River, a strong flowing river with notable thermal regime alterations. An active acoustic tracking technique adapted to large rivers allowed (1) the identification of longitudinal home ranges, movements and preferred habitat at large scale, and (2) the analysis of the influence of discharge and water temperature on the movement patterns of the fish. The active fish-tracking system recorded 1,572 fish localisations over 7 months on a weekly basis for 80% of the tagged fish (37 barbel, 23 chub and 13 catfish). Compared with the catfish, barbel and chub showed wider longitudinal home ranges, more movements >1 km and higher interindividual variability. The catfish preferred artificially heated habitats with less morphological diversity. The three species were more often localised in river sections with high density of woody debris. The results suggest that habitat degradation is more damaging for cyprinids in large modified rivers, while the catfish seemed less, impacted.
Research Center/Unit :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Capra, Hervé;  Irstea Lyon
Pella, Hervé;  Irstea Lyon
Ovidio, Michaël  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie
Language :
English
Title :
Individual movements, home ranges and habitat use by native rheophilic cyprinids and non-native catfish in a large regulated river
Publication date :
April 2018
Journal title :
Fisheries Management and Ecology
ISSN :
0969-997X
eISSN :
1365-2400
Publisher :
Blackwell, Oxford, United Kingdom
Issue :
25
Pages :
136-149
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 12 February 2018

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