Development of a New Fishway for Various Fish Species and Cost Reduction

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
本文フルテキスト
36-04-03.pdf641.42 KB

Recently, environmental conservation has been considered to be a more important part of the design of irrigation barrages than before. In this study, we investigated the spatial patterns of local flow velocity,etc. in a fishway with orifices (hereafter referred to as “orifice fishway”) to improve the performance for fish migration. The results showed that an orifice fishway enabled to achieve a more convenient maintenance through the use of a short baffle span and to obtain short migration routes for various fish species on a steeper slope of 1:4.5 and with a lower discharge of 0.12 m3/s compared with most of the currently used fishways by the improvement of “partially superimposed orifices”, even if the upstream or downstream water level changed.

刊行年月日
作成者 TSUNESUMI Naoto
著者キーワード

headwork

hydraulic design

orifice

公開者 Japan International Research Center for Agricultural Sciences
オンライン掲載日
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
36
4
開始ページ 201
終了ページ 209
DOI 10.6090/jarq.36.201
権利 Japan International Research Center for Agricultural Sciences
言語 eng

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