搜索结果: 1-3 共查到“农学 fishway”相关记录3条 . 查询时间(0.067 秒)
Field Experiment on the Migration of Fishes to a Paddy Field with a Small Fishway
biological diversity paddy irrigation systems fish protection
2009/9/10
Medaka (Oryzias latipes) populations have recently declined to such a level that they are listed as a species in danger of extinction in the Red Data Book. And a decline in the numbers of catfish and ...
Development of a New Fishway for Various Fish Species and Cost Reduction
headwork hydraulic design orifice
2009/9/10
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...
11 Dec 2006，Native fish and the health of the Karuah River are both set to benefit from a new rock ramp fishway at Stroud Weir.The fishway has been funded by MidCoast Water, the Environmental Trust, a...