防砂壩改良型舟通式魚道之試驗研究

Experiments of Check-Dam Modified-Larinier Fishway

胡通哲(Tung-Jer Hu) ； 張世倉(Shih-Tsang Chang) ； 葉明峰(Ming-Fon Yeh)

《中華水土保持學報》 31卷2期 (2000/06) Pp. 93-98

https://doi.org/10.29417/JCSWC.200006_31(2).0001

摘要

本研究針對可能適用於本省防砂壩的魚道型式－改良型舟通式魚道進行研究，分別在特有生物研究保育中心八寶圳「試驗魚道研究站」建造一座長12m，寬1m的木製試驗性質魚道及烏石坑溪防砂壩建造一座長27.4m，寬1m，落差6.1m的木製魚道，進行魚道的魚類溯游試驗，簡易泥砂運移試驗及流速量測。由試驗的結果顯示此型魚道可提供包括跳躍性，攀爬性及鰻類等多種不同游泳方式的魚類溯游，對泥砂運移的效果良好且不易造成全斷面的堵塞應有採行的價值。

關鍵字

改良型舟通式魚道 ； 魚類溯游 ； 泥砂運移

並列摘要

In this study two experimental fishways of the modified-larinier type were established: one at the Pabawchun Experimental Fishway station and the other at a check dam in wushykeng Creek in the field. The former was 12m long and 1m wide with a slope 1/10 and the latter was 27.4m long and 1m wide, with 6.1m drops. Both the fishways were made of wood. Using these two fishways, experiments on fish upstream migration and sediment transport were conducted. The results showed that the modified-Larinier type fishway was better than the traditional pool-type fishway. It enabled various species of fish, including pelagic, adhesive and crawling species, to migrate upstream, and at the same time providing a good sediment transport to avoid the blockage by sediments (sand, gravel and rock).

並列關鍵字

modified-larinier type fishway ； fish upstream migration ； sediment transport