Article (Périodiques scientifiques)
Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System
Ovidio, Michaël; Dierckx, Arnaud; Bunel, Sarah et al.
2017In River Research and Applications, 33, p. 27-36
Peer reviewed vérifié par ORBi
 

Documents


Texte intégral
Ovidio_et_al-2017-RRA-Bypass.pdf
Postprint Éditeur (350.8 kB)
Demander un accès
Annexes
Ovidio-Supplementary material1.wmv
Postprint Éditeur (35.21 MB)
Demander un accès
Ovidio-Supplementarymateriel2.wmv
Postprint Éditeur (9.17 MB)
Demander un accès

Tous les documents dans ORBi sont protégés par une licence d'utilisation.

Envoyer vers



Détails



Mots-clés :
Salmo salar; Bypass; Performance; Hydroelectricity; Rivers; Behaviour; Fish-passage; Fishpass; Migration
Résumé :
[en] The implementation of fish downstream migration bypass systems is still a major challenge, and there is interest in validating the adequacy of different configurations of bypass devices. In the Amblève River (Belgium), a mobile 3.3-m height dam feeds two principal Francis and one Francis micro-turbine and is equipped with a modern vertical slot fish pass and a downstream bypass. The aim of this study was to test the bypass attraction and efficiency (i.e. percentage of fish that approach the entrance and use the bypass) for Atlantic salmon smolts. During three consecutive years, a total of 1346 smolts were equipped with a radio frequency identification tag and released from March to May upstream of the dam of Lorcé. The entrance of the downstream migration bypass was equipped with a radio frequency identification antenna in order to detect the smolts approaching. In 2014, a capture cage was also placed downstream the bypass to evaluate its efficiency. The mean percentage of detected smolts at the entrance varied from 26.2 to 39.7%. In 2014, 16.5% of the released smolts entered the bypass and were finally caught in the cage, representing 39% of the smolts detected at the entrance. More than 98% of the detections occurred during night (mainly between 9 PM and 3 AM). The searching delay near the bypass entrance varied from less than 5 min to more than 5 days (median 4.3 min). Visual observation indicated a behavioural reluctance before entering the bypass, with a shift from positive to negative rheotaxy. Our results underline the difficulty to install retrofitted bypass system on old existing hydropower plants. Copyright © 2016 John Wiley & Sons, Ltd.
Centre/Unité de recherche :
AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Sciences de l’environnement & écologie
Auteur, co-auteur :
Ovidio, Michaël  ;  Université de Liège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie
Dierckx, Arnaud ;  Université de Liège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie
Bunel, Sarah
Grandry, Louise
Spronck, Christelle
Benitez, Jean-Philippe  ;  Université de Liège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie
Langue du document :
Anglais
Titre :
Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System
Date de publication/diffusion :
2017
Titre du périodique :
River Research and Applications
ISSN :
1535-1459
eISSN :
1535-1467
Maison d'édition :
John Wiley & Sons, Inc, Chichester, Royaume-Uni
Volume/Tome :
33
Pagination :
27-36
Peer reviewed :
Peer reviewed vérifié par ORBi
Organisme subsidiant :
FEAMP - Fonds Européen pour les Affaires Maritimes et la Pêche
Disponible sur ORBi :
depuis le 18 juillet 2016

Statistiques


Nombre de vues
231 (dont 71 ULiège)
Nombre de téléchargements
16 (dont 15 ULiège)

citations Scopus®
 
31
citations Scopus®
sans auto-citations
21
OpenCitations
 
25
citations OpenAlex
 
30

Bibliographie


Publications similaires



Contacter ORBi