Movements of adult sea trout Salmo trutta L. in the tailrace of a low-head dam at Wloclawek hydroelectric station on the Vistula River, Poland

The behavior of 27 adult migratory sea trout near the hydroelectric power plant tailrace on the Vistula River, Poland, was monitored to identify optimum conditions for fish ladder usage. Fish were closer to turbines and mainly moved upstream during the day relative to the night. Estimated swimming s...

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Bibliographic Details
Published inHydrobiologia Vol. 371; no. 1-3; p. 335
Main Authors Linnik, V.D. (Russian Academy of Sciences, Yaroslavl (Russian Federation). Inst. of Biology of Inland Waters), Malinin, L.K, Wozniewski, M, Sych, R, Dembowski, P
Format Journal Article
LanguageEnglish
Published 1998
Subjects
ANIMAL MIGRATION
BARRAGE
BEHAVIOUR
COMPORTAMIENTO
COMPORTEMENT
DAMS
ESCALA PARA PECES
FISHWAYS
Freshwater
MIGRACION ANIMAL
MIGRATION ANIMALE
PASSE A POISSONS
POLAND
POLOGNE
POLONIA
REPRESAS
SALMO TRUTTA
TELEMETRIA
TELEMETRIE
TELEMETRY
Poland, Vistula R
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Summary:The behavior of 27 adult migratory sea trout near the hydroelectric power plant tailrace on the Vistula River, Poland, was monitored to identify optimum conditions for fish ladder usage. Fish were closer to turbines and mainly moved upstream during the day relative to the night. Estimated swimming speeds correlated with time of day and fish length, and trout rarely entered the fish ladder when the water level near the entrance was low. Increases in the current speeds in the main stream from 70-80 cmps to 100 cmps and more induced a shift of the main area of fish concentration downstream in which tagged specimens were capable of maintaining themselves at sustainable swimming speeds.
Bibliography:M40
1999000737
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ISSN:0018-8158
1573-5117