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引用本文:杨桂军,潘宏凯,刘正文,王卫民,秦伯强.太湖不同富营养水平湖区轮虫季节变化的比较.湖泊科学,2007,19(6):652-657. DOI:10.18307/2007.0605
YANG Guijun,Pan hongkai,Liu zhengwen,Wamg weimin,Qinboqiang.Comparative study on seasonal variations in rotifers of the waters with different trophic states in Lake Taihu. J. Lake Sci.2007,19(6):652-657. DOI:10.18307/2007.0605
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太湖不同富营养水平湖区轮虫季节变化的比较
杨桂军1,2, 潘宏凯3, 刘正文1, 王卫民4, 秦伯强1
1.中国科学院南京地理与湖泊研究所, 南京 210008;2.中国科学院研究生院, 北京 100049;3.上海立信会计学院, 上海 201620;4.华中农业大学水产学院, 武汉 430070
摘要:
2003年10月-2004年9月对太湖不同富营养水平湖区(太湖大太湖湖区、梅梁湾和五里湖)轮虫的季节变化进行了研究.五里湖营养水平最高,太湖大太湖湖区最低;轮虫的种类数、数量和生物量都是五里湖最高,太湖大太湖湖区最低.回归分析表明,轮虫数量与总氮和叶绿素a浓度呈显著正相关;轮虫生物量与叶绿素a浓度呈极显著正相关.结果表明,太湖三个湖区轮虫群落结构显著不同,同时表明太湖水体富营养化对轮虫的群落结构有明显的影响.
关键词:  太湖  轮虫  季节变化
DOI:10.18307/2007.0605
分类号:
基金项目:国家自然科学基金项目(40371103);中国科学院知识创新重大项目(KZCX1-SW-12)联合资助.
Comparative study on seasonal variations in rotifers of the waters with different trophic states in Lake Taihu
YANG Guijun1,2, Pan hongkai3, Liu zhengwen1, Wamg weimin4, Qinboqiang1
1.Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;2.Graduate School of Chinese Academy of Sciences, Beijing 100049, P. R. China;3.Shanghai Lixin University of Commerce, Shanghai 201620, P. R. China;4.Fisheries College, Huazhong Agricultural University, Wuhan 430070, P. R. China
Abstract:
Seasonal variations in rotifers of the waters with diR'erent eutrophication states(the open water area,Meiliang Bay, Iske Wulihu) in Iake Taihu were studied during Oct. 2003-Sep. 2004. The concentration of nutrients was the highest in lake Wulihu and lowest in the open water area. The species number and biomass of rotiferswere the highest in lake Wulihu and lowest in the open water area. Regression analysis suggested that there was asignificant positive correlation between the number of rotifers and the concentration of TN and Chl. a; and the biomass of rotifers was also significantly correlated to the concentration of Chl. a. The study indicated that the structureof rotifer was significantly different among the three areas in lake Taihu. It also suggested that eutrophication hadsignificant effect on the structure of rotifer community in lake Taihu.
Key words:  Lake Taihu  rotifer  seasonal variation
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