The use of telemetry in studying downstream migration of atlantic salmon smolts at a hydroelectric powerplant in South-West France : preliminary results

During their downstream migration smolts of Atlantic salmon and seatrout have to pass hydroelectric power stations in many French rivers. The use of surface bypasses seems to be an attractive alternative to conventional fish screening or diversionary techniques at small scale hydroelectric powerplan...

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Bibliographic Details
Main Authors: Ingendahl, D., Bach, J.M., Larinier, M., Travade, F.
Other Authors: Aquaculture et pêche (UR APBX), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), EDF (EDF)
Format: Conference Object
Language:English
Published: HAL CCSD 1995
Subjects:
Online Access:https://hal.inrae.fr/hal-02578175
Description
Summary:During their downstream migration smolts of Atlantic salmon and seatrout have to pass hydroelectric power stations in many French rivers. The use of surface bypasses seems to be an attractive alternative to conventional fish screening or diversionary techniques at small scale hydroelectric powerplants. Experiments have been carried out in France in the last years with the last years with the objective of quantifying the efficiency of such bypasses, improving their siting and defining design criteria. Pendant leur migration en aval, les jeunes saumons de l'Atlantique et les truites de mer doivent franchir les centrales électriques installées sur de nombreux fleuves français. L'utilisation de passes à poissons de surface semble constituer une solution de remplacement attrayante des filets de pêche traditionnels ou des techniques de diversion utilisées dans les petites centrales électriques. Des expériences ont été réalisées en France au cours des dernières années dans le but de quantifier l'efficacité de ces passes à poissons en améliorant leur installations et en définissant des critères de construction.