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Performance of small kokanee salmon in ascending three experimental fishway installations was evaluated during the 1976 spawning season at Meadow Creek, BC. Three different fishways were tested: the Mode "D" Alaska steep pass, the helical Model "D" Alaska steep pass, and the Aeroceanics spiral fishway. The Aeroceanics fishway effectively passed fish. Within the trial time limits, 22% of all fish tested ascended the 13 vertical foot structure while another 18% were in the process of ascending. The Model "D" Alaska steep pass as installed did not prove effective as only 26% of observed attempts were successful in negotiating 2.7 vertical feet. Similar poor performance was observed in the helical fishway with only 5.6% of observed attempts successfully passing 2.15 vertical feet. Installation problems were factors in the poor performance of the latter two fishway types.
Tredger, Dave. 1977. Experimental Evaluation of Three Fishways in Providing Passage for Small Kokanee Salmon. Ministry of Environment. Fisheries Report. FRN62
Topic: Fish and Fish Habitats
Keywords: kokanee salmon, fishways, Meadow Creek, passage
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