自动采集转轮及其在鱼类资源调查中的应用

The Application of the Rotary Screw Trap in the Fish Resource Investigation

介绍了一种自动采集转轮的结构、工作原理及其在鱼类资源调查中的应用。自动采集转轮特别适合在小河流及溪流中自动采集小型鱼类,并且选择性小、活体采样、对鱼类无大的损伤、可长期自动运行、成本低廉。

An auto-capture set for fish in the stream and river—— rotary screw traps and its application in the investigation of fish resources were introduced.Rotary screw traps consist of a cone,supported on two pontoons,with interior baffles to trap and transfer fish to a live-box.The advantage of this equipment is the auto-and living-captured,with almost no harm to fish,little selectivity,and the cheap cost for long-time run.This article also shows some application of rotary screw traps in fishery research and the...