白洋淀养殖水域浮游植物种群结构初步分析

Preliminary anslysis of population structure of phytoplankton in water areas of Baiyangdian Lake under different farming models

2009年在白洋淀6种典型水域进行试验，测定其浮游生物数量、生物量的变化。根据浮游植物各主要大类的区别，分析了不同养殖模式水域浮游植物种群结构的差异。结果表明，白洋淀浮游植物总计104种，隶属于8门38科81属；第一优势种群为绿藻，其次为硅藻和蓝藻。平均数量8月份最高，多样性指数和均匀度变化范围分别为2.38～4．78和0．45～0．91。

2009 in Baiyangdian 6 typical test the waters to determine the number oi its plankton olomass changes. Major categories according to the difference between phytoplankton, influence of different culture models between the structure of phytoplankton populations. The results show that phytoplankton total of 104 species, belonging to 38 families, 81 genera and 8; the first dominant species for the green algae, diatoms and cyanobacteria followed. The highest average number in August, diversity index and evenness in the range of 0. 45-2.38-4.78 and 0. 91.