台灣鏟頜魚與台灣石(魚賓)在改良型舟通式魚道上溯時間之試驗研究

Up-migrated Time of Varicorhinus Barbatulus and Acrossocheilus Formosanus in Modified Boat-passage Fishways

胡通哲(Tung-Jer Hu) ； 莊明德(Ming-Der Juang)

《農業工程學報》 50卷3期 (2004/09) Pp. 82-88

https://doi.org/10.29974/JTAE.200409.0007

摘要

以台灣鏟頜魚及台灣石(魚賓)進行24小時共五場魚道試驗，試驗魚道爲坡度1/10、寬度1.0m、長度12.0m的改良型舟通式魚道，試驗流量爲0.032cms。將累積上溯的試驗魚比例轉換成機率核之值，據以推求試驗魚百分之五十上溯時間(T50)，根據本研究五場試驗結果，台灣鏟頜魚T50平均爲0.92hr，台灣石鱝爲1.11hr，整體而言台灣鏟頜魚上溯的速度較快。

關鍵字

台灣鏟頜魚 ； 台灣石(魚賓) ； 機率核 ； 改良型舟通式魚道 ； 百分之五十上溯時間

並列摘要

This paper provides analysis methods for evaluating the time of 50% up-migrated fish. Some experiments were done for the up-migrated fishes including Varicorhinus barbatulus, Acrossocheilus paradoxus, time duration was 24 hours. The slope of tested fishway (modified boat-passage fishway/modified Larinier fishway) was 1/10, width was l.0m, length was 12.0m, discharge was 0.032cms. Transform the cumulative percent of up-migrated fish to the value of Probit, then compute the time of cumulative 50% up-migrated fish (T50). As to the experiments, the T50 of the Varicorhinus barbatulus fish was 0.92 hours and the Acrossocheilus paradoxus fish was 1.11 hours. The average speed of the up-migration of the Varicorhinus barbatulus fish was faster than the Acrossocheilus paradoxus fish.

並列關鍵字

Varicorhinus barbatulus ； Acrossocheilus paradoxus ； Probit ； Modified boat-passage fishway ； Time of cumulative 50% up-migrated fish