Development of a fishway for irrigation and drainage systems by field monitoring of freshwater fish migration

在日本石川的3个灌溉排水系统进行了淡水鱼迁徙的野外监测。监测研究表明，中华对虾(Guichenot)、卡齐卡(Cottus Kazika)和斯氏对虾(Cottus sp.)的迁徙活动较少。已经被堰和落差结构打断。为了解决这一问题，通过制作几个鱼道水工模型，进行了中华对虾迁徙的室内实验。试验结果表明，在L/S比值为10-25的范围内，孔板式池堰鱼道对鱼类的游走效果最好，并在野外试验中得到了验证。

The field monitoring of freshwater fish migration was conducted in 3 irrigation and drainage systems, Ishikawa, Japan. The monitoring studies revealed that the migration of Pungitius sinensis (Guichenot), Cottus kazika (Jordan and Starks) and Cottus sp. has been interrupted by weirs and drop structures. To solve this problem, laboratory experiment on the migration of Pungitius sinensis was conducted by making several hydraulic models of fishway. The experiment revealed that the pool-and-weir fishway with orifices provide the highest performance for fish migration in the range of 10-25 L/s. The performance was also verified in the field experiment.