不同诱鱼方式在黄登升鱼机鱼道的诱鱼效果比较研究

Comparative Study on the Effect of Different Fish Luring Methods in the Fishway of Huangdeng Fish-lifting Machine

以澜沧裂腹鱼和光唇裂腹鱼为研究对象,通过在鱼道内安装黄色集鱼灯和饵料袋,鱼道进口处安装PIT监测设备,采用饵料诱鱼、灯光诱鱼和综合诱鱼(饵料+灯光)等3种诱鱼方式进行诱鱼,记录标记鱼类进入鱼道的时间、频次和数量,研究澜沧江云南流域黄登水电站的升鱼机系统鱼道的诱鱼方式。结果表明,使用饵料诱鱼触发PIT天线的频次最高;综合诱鱼方式标记鱼触发PIT设备5次以下共计12尾,高于其他诱鱼方式;综合诱鱼的总诱鱼效率最高,总诱鱼效率为60%,饵料诱鱼总诱鱼效率为50%,灯光诱鱼总诱鱼效率为35%。研究认为综合诱鱼方式适用于黄登升鱼机工程鱼道诱鱼措施。

Taking Schizothorax lancangensis and Schizothorax lilacinus as the research objects,the yellow fish lamps and bait bags are installed in the fishway of Huangdeng fish-lifting machine in Huangdeng Hydropower Station in Yunnan basin of Lancang River,and the PIT monitoring equipment is installed at the inlet of fishway,to study the fish luring effects of three fish luring methods of bait,light and light+bait respectively,by recording the time,frequency and quantity of marked fish entering the fishway.The results show that,(a)the frequency of PIT antenna triggered by bait luring is highest;(b)a total of 12 marked fish triggers PIT equipment less than 5 times when the light+bait luring is used,which is higher than other two fish luring methods;and(c)the total luring efficiency of light+bait luring method is the highest with a value of 60%,that are 50%and 35%for bait and light luring method respectively.It is concluded that the light+bait luring method is suitable for the fish luring in the fishway of Huangdeng fish-lifting machine.