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20 0 2年 7月 2 2日对太平湖的浮游生物现状进行了研究。太平湖浮游生物种类共计61个种 (属 ) ,浮游植物有 39属 ,浮游动物为 2 2个种属。太平湖浮游生物量的特点是浮游植物高而浮游动物低。浮游植物量为 33 91mg/l,优势种群为硅藻门、绿藻门和裸藻门 ,从分布上看中、上游浮游植物量明显高于下游 ,上层高于底层 ;浮游动物量为0 45mg/l,优势种群为轮虫 ,其分布规律是上游高于中、下游 ,底层高于上层 ;浮游植物初级生产力为 1 2 66g/m2 ·d ,水柱日毛产量为 2 0 91gO2 /m2 ·d ,浮游生物可提供的鲢、鳙鱼产力为 2 1 1 63kg/hm2 。太平湖为超富营养型。
On July 22, 2002, the status of plankton in the Taiping Lake was studied. There are 61 species of plankton in Taiping Lake, 39 genera of phytoplankton and 22 species of zooplankton. Plankton biomass is characterized by high phytoplankton and low zooplankton. The amount of phytoplankton was 33 91 mg / l, and the dominant species were Diatom, Chlorophyta and Euglenophyta. From the perspective of distribution, the amount of phytoplankton in the upper reaches was significantly higher than that in the lower reaches and the upper was higher than the bottom. The amount of zooplankton was 0 45 mg / l, the predominant population is rotifers, the distribution is higher in the upper reaches than in the middle and lower reaches, the bottom is higher than the upper; the primary productivity of phytoplankton is 1266g / m2 · d, the daily yield of water column is 2101gO2 / m2 · d , Silver carp and bighead carp provided by plankton were 2131kg / hm2. Taiping Lake is a super-eutrophic type.