上海海洋大学学报2013，Vol.22Issue(4)：586-592,7.
阳澄湖围网内外浮游甲壳动物群落结构比较
The differences of crustacean zooplankton community structure between inside and outside of the net pen in Yangcheng Lake
摘要
Abstract
Yangcheng Lake is the third largest freshwater lake of Taihu basin,which is an important water source of the Suzhou area and the only preparing source of drinking water for the city of Kunshan.Yangcheng Lake plays an important role in domestic water,industrial water,and irrigation and fisheries resources.Since 1980s,with the further use of the water resources in Yangcheng Lake,the nutrients were gradually enriched in the lake,which accelerated the eutrophication process of the lake.Algal blooms outbursted in Taihu Lake and other lakes in 2007,and all sectors of society attach great importance to the safety problems of water environment in recent years.Yangcheng Lake which is famous for culturing high quality crab (Eriocheir sinensis) had a large area about 5 400 hm2 for the purse-seine aquaculture.In order to protect the ecological environment and the source of drinking water,the government decided to reduce the area to about 2 133 hm2 in 2008.We conducted a research about crustacean zooplankton's community structure,temporal changes and their relationship with environmental factors in Yangcheng Lake,and analyzed the differences inside and outside of the pen about the crustacean zooplankton with a purpose to reveal whether the crustacean zooplankton of Yangcheng Lake has a response to the pen.We also accumulate data for the aquatic ecosystem variation of Yangcheng Lake and provide a theoretical basis for the sustainable development of the ecological fishery.The main physical and chemical characters (TP,TN,SD and Chl.a),species composition,density,biomass and the diversity index inside the pen were not significantly different from those outside the pen(P ＞0.05).关键词
阳澄湖/浮游甲壳动物/群落结构/围网养殖Key words
Yangcheng Lake/ crustacean zooplankton / community structure/ enclosure aquaculture分类
资源环境引用本文复制引用
袁林,吴惠仙,彭自然,王琼,边佳胤,薛俊增..阳澄湖围网内外浮游甲壳动物群落结构比较[J].上海海洋大学学报,2013,22(4):586-592,7.基金项目
上海市教委重点学科建设项目(J50701) （J50701）
