所测 9个淡水轮虫池和 6个混盐水轮虫池的浮游植物生物量 ,在轮虫发生高峰前期平均分别为 1 1 7 8mg/L和 1 56 5mg/L ;在轮虫高峰期平均为 39 0mg/L和 82 3mg/L ,即高峰期浮游植物生物量只为前期的 1 /3～ 1 /2。在种类组成上 ,前期均以小球藻、蓝隐藻、小环藻等小型种类为主 ,高峰期则以衣藻、扁藻等鞭毛藻类及角毛藻、螺旋藻、颤藻等丝状群体占优势。淡水池和混盐水池浮游动物生物量平均分别为 66 0mg/L和 1 1 5 7mg/L ,其中以轮虫为主 ,分别占总量的 82 9%和 84 3%,主要有萼花臂尾轮虫、壶状臂尾轮虫和褶皱臂尾轮虫等。浮游植物多样性指数 ,前期淡水池和混盐水池分别为 1 2 7和1 52 ,高峰期为 2 67和 3 0 4 ;浮游动物多样性指数分别为 1 66和 0 84。同时还讨论了轮虫池浮游生物种量的特点及浮游植物、轮虫的供饵能力 Phytoplankton biomass in 9 freshwater rotifer ponds and 6 mixed rotifers was respectively 1 1 7 8 mg / L and 1 56 5 mg / L in the early stage of rotifer peak; in average, 39 0 mg / L and 82 3 mg / L, respectively. The peak biomass of phytoplankton was only 1/3 ~ 1/2 of the previous period. In the species composition, the early are chlorella, blue alginate, small ring algae and other small species mainly in the peak of Chlamydomonas, flat algae and other flagellate algae and Chaetoceros spirulina, such as filamentous algae Groups dominate. The average biomass of zooplankton in freshwater and salt mixed ponds was 66 0mg / L and 1157mg / L, respectively, of which rotifers accounted for 82.9% and 84.3% respectively, mainly including calyx arm Tail rotifers, pot-shaped arm rotifers and pleurodus rotifers and so on. Phytoplankton diversity index showed that the number of freshwater ponds and mixed salt ponds was 122 and 152 respectively in the early stage and reached 2 67 and 3 0 4 in the peak period, while the zooplankton diversity index was 1 66 and 0 84, respectively. At the same time, the characteristics of plankton species in rotifer and the feeding capacity of phytoplankton and rotifer