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学科主题: Environmental Sciences
题名: ANALYZING BIOMAGNIFICATION OF HEAVY METALS IN FOOD WEB FROM THE PEARL RIVER ESTUARY, SOUTH CHINA BY STABLE CARBON AND NITROGEN ISOTOPES
作者: [Zeng, Yanyi ; Huang, Xiaoping ; Zhang, Dawen ; Zhang, Xia ; Ye, Feng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresourses Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China ; [Zeng, Yanyi] Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Lab Fishery Environm Monitoring, Guangzhou 510380, Guangdong, Peoples R China ; [Gu, Binhe] Univ Florida, Soil & Water Dept, Gainesville, FL 32611 USA
通讯作者: xphuang@scsio.ac.cn
关键词: Heavy metals ; Biomagnification ; Food web ; the Pearl River Estuary ; Stable isotope
刊名: FRESENIUS ENVIRONMENTAL BULLETIN
发表日期: 2013
卷: 22, 期:6, 页:1652-1658
部门归属: LMB
资助者: This study was supported by the Project of Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX2-YW-Q07), the National Science Foundation of China (Grant No. 40776086 & 41076069) and the 908 Special Project (Grant No. GD908-01-03, GD908-02-02). We are grateful to Mr Lei Tian, Qiang Lin and Dr. Kaizhi Li for the assistance in fieldwork, Guanxi Zhang and Qinghua Zheng for metal analysis and Professor Qingchao Chen and Yingya Cai for identifying the organisms, and Dr. Thomas Dreschel for editorial improvements.
摘要: We examined transfer patterns of copper (Cu), lead (Pb), zinc (Zn) and cadmium (Cd) in the food web of the Pearl River Estuary (PRE) in southern China using stable carbon and nitrogen isotopes as indicators of energy sources and trophic level (TL) for aquatic consumers. Linear regression of log-transformed concentration of metals versus TL in the estuarine food web was used to determine a trophic magnification factor (TMF). A TMF of 1.52 for Cu was found in the mollusc-crab community, indicating potential Cu biomagnification in this partial benthic food web; whereas a TMF of <1 was found for Cd in the mollusc-crab chain and for Zn and Cd in the whole food web, and a significant negative correlation between the log[Cd] and TL in the benthic food web suggested probable biodiminution of these metals. The TMF varied between a food web and its specific communities, indicating that metal transfer within a food web may possess hiding transfer patterns of metals in specific communities in the PRE. These findings may be extended to other similar ecosystem for providing directions or guidance for the future monitoring and environmental protection policy.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000320901100002
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/11073
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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[Zeng, Yanyi; Huang, Xiaoping; Zhang, Dawen; Zhang, Xia; Ye, Feng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresourses Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China; [Zeng, Yanyi] Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Lab Fishery Environm Monitoring, Guangzhou 510380, Guangdong, Peoples R China; [Gu, Binhe] Univ Florida, Soil & Water Dept, Gainesville, FL 32611 USA.ANALYZING BIOMAGNIFICATION OF HEAVY METALS IN FOOD WEB FROM THE PEARL RIVER ESTUARY, SOUTH CHINA BY STABLE CARBON AND NITROGEN ISOTOPES,FRESENIUS ENVIRONMENTAL BULLETIN,2013,22(6):1652-1658
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