【摘要】 本文报道了1982至1985年对清河水库的水文、浮游生物、浮游细菌、底栖动物、鱼类生长和初级生产力等方面的调查结果。并对十几年来的水质变化对渔业影响等问题进行了分析讨论。 近些年该水库鱼类对生长季节的初级生产量的利用率为O.61％。由于近些年水位较低,影响了水质使得水库的鱼载力较七十年代初、中期有所下降。更多还原

【Abstract】 This paper reports the results of the investigation on physics, chemistry, plankton, bacterplankton, benthos, growth of fishes and primary productivity etc. of Qinghe reservoir from 1982 to 1985. It also discusses the change of water quality that affects fishery.The utilization rate of the total radiation in growth season by phytoplankton was 0.22%. The utilization rate of the primary production in growth season by fishes was 0.61%. The P/B value of phytoplankton in growth season was 81.In recent years, the descent of the water level has led to increase in nutrient and turbidity, and decrease in plankton and fish carrying capacity.更多还原