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Transfer, distribution and bioaccumulation of microcystins in the aquatic food web in Lake Taihu, China, with potential risks to human health

文献类型:期刊论文

AuthorZhang, Dawen; Xie, Ping; Liu, Yaqin; Qiu, Tong
SourceSCIENCE OF THE TOTAL ENVIRONMENT
Issued Date2009-03-15
Volume407Issue:7Pages:2191-2199
KeywordMicrocystin Lake Taihu Fish Human health
ISSN0048-9697
Corresponding AuthorXie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Donghu S Rd 7, Wuhan 430072, Peoples R China
AbstractIn this paper, accumulation and distribution of microcystins (MCs) was examined monthly in six species of fish with different trophic levels in Meiliang Bay, Lake Taihu, China, from June to November 2005, Microcystins were analyzed by liquid chromatography electrospray ionization mass spectrometry (LC-ESI-MS). Average recoveries of spiked fish samples were 67.7% for MC-RR, 85.3% for MC-YR, and 88.6% for MC-LR. The MCs (MC-RR+MC-YR+MC-LR) concentration in liver and gut content was highest in phytoplanktivorous fish, followed by omnivorous fish, and was lowest in carnivorous fish; while MCs concentration in muscle was highest in omnivorous fish, followed by phytoplanktivorous fish, and was lowest in carnivorous fish. This is the first study reporting MCs accumulation in the gonad of fish in field. The main uptake of MC-YR in fish seems to be through the gills from the dissolved MCs. The WHO limit for tolerable daily intake was exceeded only in common carp muscle. (C) 2008 Elsevier B.V. All rights reserved.
English AbstractIn this paper, accumulation and distribution of microcystins (MCs) was examined monthly in six species of fish with different trophic levels in Meiliang Bay, Lake Taihu, China, from June to November 2005, Microcystins were analyzed by liquid chromatography electrospray ionization mass spectrometry (LC-ESI-MS). Average recoveries of spiked fish samples were 67.7% for MC-RR, 85.3% for MC-YR, and 88.6% for MC-LR. The MCs (MC-RR+MC-YR+MC-LR) concentration in liver and gut content was highest in phytoplanktivorous fish, followed by omnivorous fish, and was lowest in carnivorous fish; while MCs concentration in muscle was highest in omnivorous fish, followed by phytoplanktivorous fish, and was lowest in carnivorous fish. This is the first study reporting MCs accumulation in the gonad of fish in field. The main uptake of MC-YR in fish seems to be through the gills from the dissolved MCs. The WHO limit for tolerable daily intake was exceeded only in common carp muscle. (C) 2008 Elsevier B.V. All rights reserved.
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
SubjectEnvironmental Sciences
WOS SubjectEnvironmental Sciences
WOS Subject ExtendedEnvironmental Sciences & Ecology
WOS Keyword PlusTROUT ONCORHYNCHUS-MYKISS ; PHYTOPLANKTIVOROUS SILVER CARP ; FRESH-WATER SNAIL ; IN-VIVO EVIDENCE ; PEPTIDE TOXIN ; HEPATOTOXIC MICROCYSTINS ; CYANOBACTERIAL TOXIN ; SEASONAL DYNAMICS ; SUBTROPICAL CHINA ; EUTROPHIC LAKE
SponsorshipNational Basic Research Program of China [2008CB418101]
Indexed TypeSCI
Language英语
WOS IDWOS:000264457600007
Available Date2010-10-13