在毛主席无产阶级革命路线指引下,我省的水库养殖事业迅速发展,单位面积产量逐年提高,并涌现出许多先进的高产单位。但目前各水库的产量很不均衡,某些高产水库的年产量还不稳定。我们从1970年起,结合开门办学,曾数次对清河水库的渔业进行了调查。该水库以放养鲢、鳙鱼为主,其中鲢鱼放养量占总放养量的66.6％。因此,我们从该水库鲢鱼捕捞群体的年 Guided by Chairman Mao’s proletarian revolutionary line, the cause of reservoir aquaculture in our province has been rapidly developing. The yield per unit area has been increasing year by year, and many advanced and high-yielding units have emerged. However, at present, the output of each reservoir is not balanced, and the annual output of some high-yield reservoirs is not stable. Since 1970, we have conducted several surveys on the fisheries of the Qinghe Reservoir in combination with opening schools. The reservoir is mainly stocking silver carp and bighead carp, of which silver carp stocks reach 66.6% of the total stocking amount. So we get the silver carp from the reservoir for fishing for the year