英国白鱼总会近三年来一直进行着电拖捕鱼实验,由一条拖网渔船使用4米桁拖网进行作业,这是捕捞经济价值较高的鲽科鱼类的一种改良型装置。在电捕鱼时,桁拖网上不装拖底铁链,改用一组重量较轻的下垂电极,并由渔船向电极馈送出一连串脉冲信号,产 The Whitefish has been carrying out drag-and-drop fishing experiments for almost three years and is operated by a trawler using a 4-meter trawler, an improved device for the fishing of high-value clams. In the electric fishing, the trawl trawl is not installed on the bottom of the iron chain, switch to a lighter weight of the sagging electrode, and the fishing boat fed to the electrode a series of pulse signal, the production