Article (Scientific journals)
How and where to pass? Atlantic salmon smolt’s behaviour at a hydropower station offering multiple migration routes
Renardy, Séverine; Benitez, Jean-Philippe; Tauzin, Amandine et al.
2020In Hydrobiologia, 847, p. 469-485
Peer Reviewed verified by ORBi
 

Files


Full Text
Renardy2020_Article_HowAndWhereToPassAtlanticSalmo.pdf
Publisher postprint (1.75 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Salmo salar; Downstream migration; Fish trajectory; Fish telemetry; Fish passage; Archimedes screw
Abstract :
[en] We studied downstream migration behaviour of Atlantic salmon smolt at a hydropower station that offers four safe (weir, new incision gate on weir, downstream bypass, Archimedes screw) and one potentially unsafe (Kaplan turbines) migration routes. We followed hatchery smolts using radio (n = 17) and RFID (n = 200) telemetry. They were released 1.2 km upstream of the hydropower station in spring 2018, in four groups, at different water discharge (18 to 37.2 m3s-1) and temperature (12.2–17.6 °C) conditions. For radio-tagged smolts, the repartition of the migration routes was 41.2% for the bypass, 17.6% for both the Kaplan turbine and the weir, 11.8% for the Archimedes screw, 0% for the new incision and 11.8% of unknown route. For the RFID-tagged smolts, the repartition was 38.0% for the bypass, 56.5% for the weir and/or the Kaplan, 4.5% for the new incision and 1.0% for the Archimedes Screw. The median time to cross the hydropower station was 58 min, and 88.2% of the smolts succeed to continue their downstream migration. The results demonstrate a diversity of choices of migration routes and underline the importance to optimise the position of fish-friendly turbines and fish passes at hydropower stations to increase their attractiveness.
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 > Doct. sc. (biol. orga. & écol. - paysage)
Benitez, Jean-Philippe  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie
Tauzin, Amandine
Dierckx, Arnaud ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie
Nzau Matondo, Billy  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie
Ovidio, Michaël  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie
Language :
English
Title :
How and where to pass? Atlantic salmon smolt’s behaviour at a hydropower station offering multiple migration routes
Publication date :
January 2020
Journal title :
Hydrobiologia
ISSN :
0018-8158
eISSN :
1573-5117
Publisher :
Kluwer Academic Publishers, Netherlands
Springer, Netherlands
Volume :
847
Pages :
469-485
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
SPW DNF - Service Public de Wallonie. Département de la Nature et des Forêts [BE]
Available on ORBi :
since 04 November 2019

Statistics


Number of views
240 (82 by ULiège)
Number of downloads
7 (3 by ULiège)

Scopus citations®
 
15
Scopus citations®
without self-citations
7
OpenCitations
 
11

Bibliography


Similar publications



Contact ORBi