滇池浮游植物种类的动态变化

 报道2001~2002年对滇池浮游植物群落的调查结果.调查期间共鉴定出浮游植物107种及变种.隶属于6个门.其中绿藻门有50个种及变种,占总种数的47.2%;硅藻门有33个种及变种,占总种数的31.1%;蓝藻门微囊藻属的浮游植物在上数量上占绝对优势,占总数量的84.27%.滇池浮游植物群落是一个蓝藻占绝对优势的蓝藻-绿藻型.浮游植物小型化趋势明显.浮游植物种类在夏初和春天种类较多,秋冬季较少.浮游植物物种的平面分布有一定的差异,但不十分显著.

Dynamic variation for the species of phytoplankton in Dianchi Lake, China

The results of an investigation of phytoplankton flora from 2001 to 2002 in Dianchi Lake,China are reported.The results showed that 107 species and varities belonging to 6 phyla had been identified during the survey.Among them there are 50 species and varities in Chlorophyta and 33 species and varities in Bacillariophyta.But Microcystis Kutz.,Cyanophyta,was the highest in cell quantity with 84.27% of the total.The type of the community of phytoplankton in Dianchi lake was cyanobacteria-green algae.And the cells of phytoplankton were miniaturization.The number of species is higher in spring and summer and lower in autumn and winter.There were a few differences in spatial variation of phytoplankton species.