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黄良民研究团队在《Marine Pollution Bulletin》发表文章

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时间:2013-12-30  作者:LMB  来源:文本大小:【 |  | 】  【打印

题目: Methylmercury in fish from the South China Sea:Geographical distribution and biomagnication

作者: Aijia Zhu, Wei Zhang, Zhanzhou Xu, Liangmin Huang, Wen-Xiong Wang*

刊物Marine Pollution Bulletin,IF=2.531III区)

刊号2013,77(1-2):437-444 

摘要: We conducted a large-scale investigation of methylmercury (MeHg) in a total of 628 marine wild fish covering 46 different species collected from the South China Sea between 2008 and 2009. Biological and ecological characteristics such as size (length and wet weight), feeding habit, habitat, and stable isotope (δ(15)N) were examined to explain MeHg bioaccumulation in marine fish and their geographical distribution. MeHg levels in the muscle tissues of the 628 individuals ranged from 0.010 to 1.811 μg/g dry wt. Log10MeHg concentration was significantly related to their length and wet weight. Feeding habit and habitat were the primary factors influencing MeHg bioaccumulation. Demersal fish were more likely to be contaminated with MeHg than the epipelagic and mesopelagic varieties. Linear relationships were obtained between Log10(MeHg) and δ(15)N only for one location, indicating that biomagnification was site-specific. Results from this study suggest that dietary preference and trophic structure were the main factors affecting MeHg bioaccumulation in marine fish from the South China Sea. 

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