Author(s): Muneyuki Aoki; Tomoaki Funakoshi; Keita Saito
Linked Author(s): Muneyuki AOKI
Keywords: No Keywords
Abstract: In this study, authors carried out some experiments those using immature fish; Tribolodon hakonensis which had low swimming capability in a rocky ramp fishway with transverse slope. As the results, in Case2 b, run-up ratio R decreased 10～30% in comparison with Case2 a where had high swimming capability of the fish. Therefore, invention to form a variety of flows regardless of small and large of the flow quantity is necessary. In Case3, a variety of flows was formed by securing of water depth regardless of small and large of the flow quantity. Moreover, run-up ratio Rr became more than 60 (%) even if swimming capability of the fish was low. In addition, fish run up at the point which was (cm/s) in these experiments.
Year: 2018