Swimming behavior of isolated ayu,plecoglossus altivelis altivelis,in running water
Swimming behavior of isolated fish in running water has not been investigated. In this study, the swimming behavior of isolated ayu in the running water was recorded with a digital video camera with changing the velocity for five cases. The result showed that the swimming trajectory can be described by nodes and branches. It was found that the ground distance, swimming distance, ground speed and swimming speed in the streamwise direction increases with an increase of the flow velocity, because the ayu has positive rheotaxis. The turning angle of swimming trajectory decreases with an increase of the flow velocity.
isolated ayu node branch swimming distance running water
Kouki Onitsuka Juichiro Akiyama Hikaru Takeuchi Atsushi Ono
Department of Civil Engineering,Kyushu Institute of Technology Kitakyushu,804-8550,Japan
国际会议
9th International Conference on Hydrodynamics(第九届国际水动力学会议 ICHD2010)
上海
英文
710-715
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）