苏州阳澄湖的浮游植物

Phytoplankton From the Yangchenghu Lake in Suzhou

阳澄湖是苏州地区重要的综合水源。从2004年3月至10月对阳澄湖进行了3次浮游植物的调查,共发现浮游植物8门83属211种(包括变种),其中绿藻门种类最多,有41属103种,占全部种类的48.8%;其次为硅藻门,有20属50种;裸藻门有4属29种;蓝藻门有9属16种;隐藻门有2属3种;甲藻门有3属6种;金藻门有3属3种;黄藻门有1属1种。并对该水体中浮游植物的季节变化、优势种、数量分布和群落结构特征进行了初步讨论。

Yangehenghu Lake is the comprehensive water in Suzhou. We investigated the phytoplankton three times in Yangehenghu from Mar. 2004 to Oct. According to the surveys, 211 taxa of phytoplankton belonging to 83 genera of 8 ohyla have been identified, of which the most abundant ＇aye of Chlorophyta, with 103 species of 41 genera, taking up 48. 8% of the total. Folowed successively by Baeilarlophyta, with 50 species of 20 genera; Euglenaphyta, with 29 species of 4 genera; Cyanophyta, with 16 species of 9 genera;Cryptoohyta, with 3 species of 2 genera; Pyrrophyta, with 6 species of 3 genera; Chrysophyta, with 3 species 3 genera; Xanthophyta, with I species 1 genera. The seasonal change, the structure of the community, the quantity dis tribution and dominant species of phytoplankton are also primarily discussed.