Title

Ascending Characteristics in Denil Fishway

Authors

Y Hara
Y Wada

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

249

End Page

252

Publication Place

Gifu, Japan

Publisher

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

Abstract

In recent years, Denil fishways in which it is said migrating capability is good for longer fishes on steep slope (gradient: 1/6), have been introduced and they have been constructed in various parts. Denil fishways have been constructed for salmons or trouts in Europe and other countries. However, fishways in Japan are almost for Ayu fish. Therefore the authors tried to confirm the function of a Denil fishway for Ayu fish by means of experiments in fields. In conclusion, it is confirmed that Denil fishways are not suitable for Ayu fish or small fishes in compared with pool-and-weir fishways.



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