在2005年11月(秋)、2006年1月(冬)、2006年4月(春),分别对深圳福田红树林保护区5个水质监测站的浮游藻类进行采样研究.共鉴定到浮游藻类5门27属52种(含1变种和9未知种),密度在1.2×106～8.8×106个/L之间,平均密度为4.9×106个/L.硅藻门种类最多,有17属35种(含未知7种),占总种类数的67.3%,而且密度最大,高达8.7×106个/L;最少为隐藻门的种类,尚未发现甲藻门的种类.耐污染特征的种类如极微小环藻(Cyclotella caspia)、颤藻(Oscillatoriaspp.)和小球藻(Chlorella vulgaris)是藻类群落的主要成分.各站分布的藻类群落组成季节差异明显,而种类数和密度并没有明显的季节变化.各站的优势种和优势类群存在时空差异.评价各站水质,反映出该红树林区水体处在中营养至富营养化状态.The spatial and seasonal distribution of phytoplankton were studied in 5 sampling stations in Futian Mangrove Reserves,Shenzhen in Nov.2005,Jan.2006 and Apr.2006.A total of 52 taxa(including 1 variety and 9 unidentified taxa) belonging to 27 genera in 5 phyta were identified among which Bacillariophyta taxa contributed for definitely the most,counting for 67.3%,while Cryptophyta taxa were seldom observed.Pyrrophyta taxa was not identified in any season in each station.Phytoplankton density varied from 1.2×106 ind./L to 8.8×106 ind./L.Average density was 4.9×106 ind./L.Bacillariophyta taxa were predominant with 8.7×106 ind./L.Pollution-toleratance taxa:Cyclotella caspia,Oscillatoria spp.and Chlorella vulgaris were dominant in phytoplankton community.There was significantly different in composition of phytoplankton community in seasons among stations.Seasonal variation of specie numbers and phytoplankton densities were not found.The dominant taxa were different among stations.According to Chlorophyll a concentrations,water quality of the 5 sampling stations were in the state of deterioration.红树林区浮游藻类生态特征研究及优势种的分离纯培养(香港城市大学-深圳福田红树林保护区合作项目)资
