Title

Experimental Study on the Sectional Denil Fishway

Publication Date

1995

Notes

Title, abstract, and figure legends in English, remainder of text in Japanese

Publication Title

Proceedings of the International Symposium on Fishways '95

Start Page

253

End Page

258

Publication Place

Gifu, Japan

Publisher

The Organizing Committee for International Symposium on Fishways '95 in Gifu

Abstract

Small portable Denil (0.3m width, 0.3m depth) and Steep Pass (0.3m width, 0.3m depth) were experimentally installed on a divergent weir in a brook of 3m width, and also on a concrete channel connected to the fish pond in Shimane Prefectural Fisheries Experimental Station, in order to check the suitability for ayu fish. Although the direct release into the fishway channel resulted in misery, the release into the downstream showed a reasonable success even in the slope of 30% in both Denil and Steep Pass. In was often observed that ayu passed the bottom layer even in Steep Pass.



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