博斯腾湖浮游植物现状调查

STATUSQUO INVESTIGATION ON PHYTOPLANKTON OF BOSTENG LAKE

本次调查发现博斯腾湖有浮游植物7门,78属,131种.优势种为骈胞藻,全湖广布种为角甲藻.年平均藻量为364万个/升,年数量变动曲线是以秋季为一个高峰的单峰型曲线.以浮游植物的种类组成,优势种、数量、生物量作为浮游植物群落生态学变化的主要指标.综合各项因素并通过多样性指数的计算,对博斯腾湖的污染状况进行了评定,结果表明,该湖为中营养型湖泊.

This investigation reveals that Bosleng Lake has 7 phyla, 78 genera and 131 species of phytoplankton. The dominant species is Binuclearia lectorum. The peregrinus in the lake is Ceralium hirundinella The annual average algae quantity is 3.64 × 106/ L. The annual change curve which has one peak in the antumn is single peak type. The specific composition, dominant species, quantity and biomass were taken as the index of the ecological change of phytoplankton community. Collecting all factors, the pollution degree of Bosteng Lake was evaluated through the diversity index. The result shows that the lake is mesotrophic.