摘要
2004年-2007年5月和8月对渤海湾近岸海域30个站位进行了定点采样,并分析了其浮游植物的种类多样性和种群动态,结果表明,渤海湾近岸海域共发现浮游植物7门54属106种,硅藻为优势种群,共22属60种,其中圆筛藻属(Coscinodiscuss sp.)和角毛藻属(Chaetoceros sp.)种类最多,分别为12种和14种。2005年渤海湾近岸海域浮游植物物种丰度、多样性指数、均匀度指数均较高,优势度较低,说明2005年渤海湾近岸海域环境较好,而2007年渤海湾的物种丰度、多样性指数、均匀度指数均较低,优势度较高,说明2007年渤海湾近岸海域环境较差。渤海湾近岸海域塘沽断面的浮游植物多样性指数较低,说明此断面受到的污染较大。
30 stations have been sampled and species diversity and community characteristics of phytoplankton have been analyzed in the offshore marine areas of the Bohai Bay from May, 2004 to August, 2007. The results show that seven classes, including 54 genera and 106 species were found. The main phytoplankton was diatoms, including22 genera and 60 species, Coscinodiscuss sp. were 12 species and Chaetoceros sp. were 14 species. Species abundance, species diversity and evenness index were greater and degree of dominance was small in 2005 than those in 2007, which indicated that the environment of the offshore marine areas of the Bohai Bay was better in 2005 than that in 2007. Species diversity of phytoplankton in Tanggu section was smaller than that in other areas of the offshore marine areas of the Bohai Bay, which indicated that this area was polluted more seriously.
出处
《盐业与化工》
CAS
2009年第6期11-14,共4页
Jounral of Salt and Chemical Industry
基金
国家海洋局全国近岸生态监控区监测专项
滨海新区科技特派员科技专项(SB20080034)
关键词
渤海湾
近岸海域
浮游植物
物种多样性
Bohai Bay
offshore marine areas
phytoplankton
species diversity
