Upper Midwest Environmental Sciences Center
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Power, G. (1989). One rung at a time. Atlantic Salmon Journal. 38:30-32.
The author describes the four basic categories of fishways; the pool and step (or weir), the Denil, the vertical slot and the fish elevator.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/URL: http://www.umesc.usgs.gov/data_library/fisheries/fish_passage/power.html
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