为了探索水库中鱼类集群活动规律,进行科学捕鱼,辽宁省淡水水产研究所遵照毛主席“对技术精益求精”的伟大教导,一九七一年开始结合水库捕鱼,应用国产“67-2型”半导体探鱼仪侦察鱼群,并探测水库深度、库底形状和障碍物等,初步收到了一些效果。一、侦察鱼群,一九七一年八月在清河水库进行“光诱捕鱼”试验中,用探鱼仪侦察 In order to explore the rules of fish cluster activities in reservoirs and carry out scientific fishing, the Institute of Freshwater Fisheries of Liaoning Province, following Chairman Mao’s great teaching on “technical excellence”, started to combine the use of reservoir fishing with domestic production of 67-2 Type “semiconductor fish finder to detect fish, and detect the depth of the reservoir, bottom shape and obstacles, received some initial results. First, the detection of fish, in August 1979 in the Qinghe Reservoir ”light trap fishing" test, with a fishfinder reconnaissance