Development of a New Fishway for Various Fish Species and Cost Reduction
ISSN | 00213551 |
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書誌レコードID(総合目録DB) | AA0068709X |
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 | |
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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 |
巻 | 36 |
号 | 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 |