大伙房和柴河两水库的环境因子同鲢、鳙生长和产量变动的关系

对辽宁省大伙房水库（１９８０－１９８７）和柴河水库（１９８１－１９８７）的水文、理化和生物数据，与这两座库同时间的不投饵网箱养殖的鲢、鳙鱼种的生长和产量进行回归分析。结果表明，７－８月的入库水量和出库水量、９月与６月间的水位差等参数同鲢，鳙均重及产量相关显著，用它们来估测大体鲢、鳙的生长与产量是可行的。

RELATIONS OF ENVIRONMENTAL FACTORS TO GROWTH AND YIELD OF SILVER CARP AND BIGHEAD CARP IN DAHUOFANG AND CHAIHE RESERVOIRS, LIAONING PROVINCE

This paper deals with the regression analysis of mean body weight and yield ofsilver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis)in cage culture without feeding, against the environmental variables, such as hydrographic,physical, chemical and biological indexes in Dahuofang Reservoir during 1980-1987 and Chaihe Reservoir during 1981-1987. The results show that the inflow,outflow from July to Aug., and the difference of water levels between Sept.and June are significantly correlated to the mean body weight and the yield of the fishes and so could be used to estimate the growth and production of the fishes in reservoirs.