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学科主题: Marine & Freshwater Biology
题名: Relationships between microcystins and environmental parameters in 30 subtropical shallow lakes along the Yangtze River, China
作者: Wu, S. K.; Xie, P.; Liang, G. D.; Wang, S. B.; Liang, X. M.
通讯作者: Xie, P, Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Wuhan 430072, Peoples R China
关键词: cyariobacteria ; LC-MS ; microcystin ; shallow lakes ; Yangtze River
刊名: FRESHWATER BIOLOGY
发表日期: 2006-12-01
DOI: 10.1111/j.1365-2427.2006.01652.x
卷: 51, 期:12, 页:2309-2319
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Marine & Freshwater Biology
研究领域[WOS]: Marine & Freshwater Biology
摘要: 1. A survey of 30 subtropical shallow lakes in the middle and lower reaches of the Yangtze River area in China was conducted during July-September in 2003-2004 to study how environmental and biological variables were associated with the concentration of the cyanobacterial toxin microcystin (MC). 2. Mean MC concentration in seasonally river-connected lakes (SL) was nearly 33 times that in permanently river-connected lakes (RL), and more than six times that in city lakes (NC) and non-urban lakes (NE) which were not connected to the Yangtze River. The highest MC (8.574 mu g L-1) was detected in Dianshan Lake. 3. MC-RR and MC-LR were the primary toxin variants in our data. MC-RR, MC-YR and MC-LR were significantly correlated with Ch1 a, biomass of cyanobacteria, Microcystis and Anabaena, indicating that microcystins were mainly produced by Microcystis and Anabaena sp. in these lakes. 4. Nonlinear interval maxima regression indicated that the relationships of Secchi depth, total nitrogen (TN) : total phosphorus UP) and NH4+ with MC were characterised by negative exponential curves. The relationships between MC and TN, TP, NO3- + NO2- were fitted well with a unimodal curve. 5. Multivariate analyses by principal component and classifying analysis indicated that MC was mainly affected by Microcystis among the biological factors, and was closely related with temperature among physicochernical factors.
英文摘要: 1. A survey of 30 subtropical shallow lakes in the middle and lower reaches of the Yangtze River area in China was conducted during July-September in 2003-2004 to study how environmental and biological variables were associated with the concentration of the cyanobacterial toxin microcystin (MC).
关键词[WOS]: CYANOBACTERIUM MICROCYSTIS ; AERUGINOSA ; NITROGEN ; WATER ; HEPATOTOXIN ; TOXICITY ; GROWTH ; LR ; PHOSPHORUS ; AGARDHII
语种: 英语
WOS记录号: WOS:000242487400010
ISSN号: 0046-5070
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8760
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Wuhan 430072, Peoples R China

Recommended Citation:
Wu, S. K.; Xie, P.; Liang, G. D.; Wang, S. B.; Liang, X. M..Relationships between microcystins and environmental parameters in 30 subtropical shallow lakes along the Yangtze River, China,FRESHWATER BIOLOGY,2006,51(12):2309-2319
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