根据2002年6月和9月的调查,大伙房水库浮游动物共35属61种,其中原生动物10属18种、轮虫9科13属24种、枝角类5科8属13种、桡足类2科5属6种,年平均数量和生物量为17677个/L和2.0647mg/L,数量以急游虫、侠盗虫、长肢多肢轮虫、螺形龟甲轮虫、透明氵蚤和近邻剑水蚤最多。浮游动物的数量和生物量时空分布较明显,时间上6月为数量高峰,而生物量9月为高峰;水平分布中游数量和生物量均最低,下游数量和生物量均最高。水库浮游动物每年可为浮游动物食性鱼类提供793t鱼产力。 According to the surveys conducted in June and September 2002, there were 35 genera and 61 species of zooplankton in the Dahuofang Reservoir, of which 10 were genera and 18 species of protozoa, 24 species of 13 genera of 9 genera, and 13 species of 5 genera and 8 genera of cladocera. There are 6 species of legumes, 2 families, 5 genera and 6 species, the annual average quantity and biomass are 17677 / L and 2.0647mg / L, the number of which are acute bugs, rodents, long-legged rotifers, rotifers, Fleas and the nearest neighbor Sword Daphnia. The number of zooplankton and the spatial and temporal distribution of biomass were obvious, with the peak in June and the peak in September. The distribution of middle and lower reaches of the horizontal distribution was the lowest while the quantity of downstream and biomass were the highest. Reservoir zooplankton provides 793 t of fish productivity for zooplankton feeding fish each year.