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引用本文:潘宏凯,杨桂军,刘正文.太湖春季浮游动物磷释放的初步研究.湖泊科学,2006,18(1):69-72. DOI:10.18307/2006.0110
PAN Hongkai,YANG Guijung,LIU Zhengwen.Phosphorus Release by Zooplankton in Lake Taihu in Spring. J. Lake Sci.2006,18(1):69-72. DOI:10.18307/2006.0110
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太湖春季浮游动物磷释放的初步研究
潘宏凯1,2,3, 杨桂军4, 刘正文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 100039;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:
浮游动物是湖泊生态系统的主要组成之一,于2004年3月至5月间调查了太湖梅梁湾、五里湖浮游动物数量,并在实验室条件下分别测定了浮游动物正磷酸盐(PO4-P)的释放率.结果表明,研究期间梅梁湾的枝角类密度都高于五里湖,五里湖的轮虫数量高于梅梁湾,两水域桡足类密度上的差异不明显;梅梁湾和五里湖浮游动物PO4-p释放率的范围分别为0.20-0.43 mg/(g(DW)·h)和0.19-0.54 mg/(g(DW)·h).因此浮游动物营养盐释放对湖泊生态系统营养盐循环具有一定的作用.
关键词:  太湖  浮游动物  磷释放
DOI:10.18307/2006.0110
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工程领域前沿项目(CXNIGLAS-402-03);中国科学院知识创新工程重大项目联合资助(KZCX1-SW-12)
Phosphorus Release by Zooplankton in Lake Taihu in Spring
PAN Hongkai1,2,3, YANG Guijung4, LIU Zhengwen1
1.Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;2.Graduate School of Chinese Academy of Sciences, Beijing 100039, 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:
Zooplankton is one of the most important components in lake ecosystems. The zooplankton abundance and P04-P released by zooplankton community in Meiliang Bay and Lake Wuli, Lake Taihu were studied from March to May in 2004. The results showed that the cladoceran density in Meiliang Bay was always higher than that in Lake Wuli. However, the abundance of rotifers was higher in Lake Wuli than Meiliang Bay; and the difference of copepods was not significant. P04-P releasing rates ranged from 0.20 to 0.43mgP/(g(DW)·h) in Meiliang Bay, and from 0.19 to 0.54 mg/(g(DW)·h) in Lake Wuli. Present study suggests that nutrient release by zooplankton can play an important role in nutrient regeneration in lake ecosystems.
Key words:  Lake Taihu  zooplankton  phosphorus release
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