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Adam, B. and U. Schwevers (1998). Positioning fish migration facilities - behavioural investigations on fish in a hydraulic flume. Wasser und Boden. 50:55-58.
We investigated typical behavioural patterns of rhithral fish in a hydraulic
flume (18 m x 1,5 m x 1 m deep), in order to determine how fish migration
facilities should best be installed. By comparing different discharges and
various entrance locations of a simulated fishway, we found that the most
effective position for the entrance is parallel to the tailwater flow and
directly at the obstacle. In contrast, entrances at right-angles to the flow can hardly be found by the fish. On their way upstream, they pass the zone of turbulence and assemble immediately in front of the migration barrier.
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U.S. Geological Survey
URL: http://www.umesc.usgs.gov/data_library/fisheries/fish_passage/adam.html
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