Article (Scientific journals)
Assessment of the Attractiveness and Passage Efficiency of Different Fish Passage Solutions at a Hydropower Plant by Combining Fine Scale 2D-Telemetry and Hydraulic Numerical Modelling
Renardy, Séverine; Utashi Ciraane, Docile; Benitez, Jean-Philippe et al.
2023In Environments
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Keywords :
nature-like fishway; Archimedes screw; etho-hydraulics; hydrodynamic modelling; individual behavior
Abstract :
[en] Mitigation measures for downstream-migrating Atlantic salmon smolts (Salmo salar L.) are commonly insufficiently attractive to enable safe entrance and passage with no delay. Combining 2D telemetry with hydrodynamic modelling has been shown to be a good tool to better understand the influence of hydrodynamic factors on the migration route choice of fishes. In this study, we investigated the smolt downstream migration at a hydropower plant in Belgium that offers five migration routes, including two Archimedes screws and one nature-like fishway. At the hydropower plant, the Archimedes screws were the most used migration routes, due to higher discharges and more important water depths at their entrance. The weir and the canal intake were less used by the smolts. The nature-like fishway turned out to be less used, with 23% of the smolts. Its associated crossing time was significantly longer, probably due to shallow water depths and high flow velocities. The nature-like fishway had the potential to become a good migration route for salmon smolts after improvements to increase attractiveness and passage efficiency. Moreover, the Archimedes screws were not detrimental to the smolts and did not cause any significant delays to the crossing time.
Research center :
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 :
Renardy, Séverine  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS)
Utashi Ciraane, Docile  ;  Université de Liège - ULiège > Urban and Environmental Engineering  ; Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Benitez, Jean-Philippe  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Gestion des ressources aquatiques et aquaculture
Dierckx, Arnaud ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement (Arlon Campus Environnement) > Laboratoire de Démographie des poissons et hydroécologie
Gelder, Justine  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Gestion des ressources aquatiques et aquaculture
Ana T. Silva;  Nina
Archambeau, Pierre  ;  Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Dewals, Benjamin  ;  Université de Liège - ULiège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering
Pirotton, Michel ;  Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Erpicum, Sébastien  ;  Université de Liège - ULiège > Urban and Environmental Engineering  ; Université de Liège - ULiège > Département ArGEnCo
Ovidio, Michaël  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Gestion des ressources aquatiques et aquaculture
Language :
English
Title :
Assessment of the Attractiveness and Passage Efficiency of Different Fish Passage Solutions at a Hydropower Plant by Combining Fine Scale 2D-Telemetry and Hydraulic Numerical Modelling
Publication date :
22 June 2023
Journal title :
Environments
ISSN :
2076-3298
Publisher :
MDPI AG, Switzerland
Peer reviewed :
Peer Reviewed verified by ORBi
Development Goals :
14. Life below water
Funders :
SPW - Public Service of Wallonia [BE]
Available on ORBi :
since 24 July 2023

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