Hydraulics of Alaska Steeppass Fishway Model A40
baffles, channel, denil, habitat, hydraulics, migration, models, pool, pool and weir, pool type, rating curves, slope, spawning, steeppass, structures, vertical slot, weir, weir type
Research Information Bulletin 95
United States Department of the Interior
Fishways are hydraulic structures that assist migrating fish in overcoming obstacles blocking their way to spawning, feeding or other habitat. Fishways can be divided into three types: Pool and Weir, Vertical Slot and Denil. An Alaska steeppass fishway is a denil-type fishway developed by G.L. Ziemer in 1962 - essentially a straight rectangular channel with baffles placed on its sides and bottom. In our study, we used the Model A40.
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