摘要
2013年对元荡湖的浮游植物群落和物种多样性进行了初步调查研究，共发现浮游植物111种，隶属7门，72属，其中绿藻门为主要类群，35属48种，占浮游植物总物种的43．24％。浮游植物生物量和密度分别为2．13 mg／L和842．80×104 cells／L，主要优势种有微小平列藻（Merismopedia tenuissima）、两栖颤藻（Oscillatoria amphbia）、灿烂颤藻（Oscillatoria splendida）、小空心藻（Coelastrum microporum）、小型黄丝藻（Tribonema minus）等。蓝藻门的优势种出现在春、夏、秋季，绿藻门的优势种出现在冬季，黄藻门的优势种出现在秋冬季。Shannon－Wiener多样性指数全年均值为1．70，Margalef 丰富度指数全年均值为1．13，藻类综合指数全年均值为6．00，元荡湖水体呈富营养型。
Abstract
A preliminary survey was carried on phytoplankton community and species diversity of Yuandang Lake in 2013.It found a total of 111 species of phytoplankton belonging to 7 phyla and 72 genera, among which there are 35 genera and 48 species.43.24% of the total spe-cies were Chlorophyta.Phytoplankton biomass and density were 2.13 mg/L and 842.80 ×104 cells/L.Merismopedia.tenuissima, Oscillato-ria.amphbia, Oscillatoria splendida, Coelastrum microporum, Tribonema minus, etc.are the main dominant species.The dominant species of Cyanophyta appeared in spring, summer and autumn.The dominant species of Chlorophyta appeared in winter, and the Xanthophyta appeared in autumn and winter.Based on the analysis of statistics, the annual average values of Shannon-Wiener index, Margalef index, and Algae in-dex were 1.70, 1.13, 6.00 respectively, so this survey indicated that Yuandang Lake suffered from eutrophication.
基金项目
水产动物遗传育种中心上海市协同创新中心(ZF1206)
上海市科技兴农重点攻关项目( D－8006－13－0049)
国家科技期刊平台
NSTL
维普
万方数据