芜湖镜湖的浮游植物

本文报道了1987年对芜湖市镜湖浮游植物的调查结果。共计发现浮游植物72属182种。浮游植物的年平均总量为43.31毫克/升,其中,隐藻占70.19％,硅藻占11.38％,绿藻占11.22％,蓝藻占5.45％。文中讨论了浮游植物的鱼产力,并对镜湖的营养类型进行了生物学评价。

The Phytoplankton of Lake Jinghu of Wuhu

This paper reports the results of the survey of the phytoplankton of Lake Jinghu in Wuhu in Anhui Province during 1987. The Lake is 0. 15 km~2and a mean depth of about 2 m. The average biomass of phytoplankton in Lake Jinghu is 43. 31 mg/1.Among them, Cryptophyta is the most predominant group, being 70. 19% of the total biomass. Next is Bacillariophyta(11.38%), Chlorophyta(11.22%) and Cyanophyta (5. 45%). During the preiod of the investigation, the 72 genera, 182 species of the phytoplankton were identified. The most important species of them are: Cryp- tomonas erosa Ehr., Cyclotella meneghiniana Kutz. and Scenedesmus spp. In this paper the fish productivity of the phyloplankton are also discussed.