干旱区生态环境知识资源中心(Arid): Methylmercury Bioaccumulation in Deepest Ocean Fauna: Implications for Ocean Mercury Biotransport through Food Webs

Arid

DOI	10.1021/acs.estlett.0c00299
	Methylmercury Bioaccumulation in Deepest Ocean Fauna: Implications for Ocean Mercury Biotransport through Food Webs
	Liu, Maodian; Xiao, Wenjie; Zhang, Qianru; Shi, Linlin; Wang, Xuejun; Xu, Yunping
通讯作者	Wang, XJ (corresponding author), Peking Univ, Coll Urban & Environm Sci, Minist Educ, Lab Earth Surface Proc, Beijing 100871, Peoples R China. ; Xu, YP (corresponding author), Shanghai Ocean Univ, Coll Marine Sci, Shanghai Engn Res Ctr Hadal Sci & Technol, Shanghai 201306, Peoples R China.
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
ISSN	2328-8930
出版年	2020
卷号	7 期号:7 页码:469-476
英文摘要	For many contaminants, the hadal zone (from 6000 to 11000 m depth) is potentially the least explored environment. In this work, we reveal the bioaccumulation of methylmercury (MeHg), a potent neurotoxin that can be substantially bioaccumulated within marine food webs, in amphipod fauna from the Mariana, Massau, and New Britain trenches. We identified high levels of mercury (Hg) and MeHg ranging in wet weight from 47 to 435 ng/g and from 3.8 to 61 ng/g, respectively, in amphipods from these trenches. Placing the MeHg level into a broader comparative context with previous values, we found that the MeHg level in this study is significantly higher than that from many other aquatic environments around the world. High MeHg levels are largely dependent on food availability, which is probably related to surface ocean production, terrestrial input, and MeHg bioaccumulation in marine food webs. Comparisons of the distribution and variation trends of MeHg levels based on fatty acid, radiocarbon (Delta C-14), and stable carbon isotope (delta C-13) analyses supported our hypothesis. Our study suggests that anthropogenic Hg inputs into surface oceans could be rapidly transported to the world's deepest oceans through marine food webs and highlights that hadal trenches are not biological deserts.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000614397400004
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS研究方向	Engineering ; Environmental Sciences & Ecology
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348831
作者单位	[Liu, Maodian; Xiao, Wenjie; Zhang, Qianru; Wang, Xuejun] Peking Univ, Coll Urban & Environm Sci, Minist Educ, Lab Earth Surface Proc, Beijing 100871, Peoples R China; [Liu, Maodian] Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA; [Xiao, Wenjie; Shi, Linlin; Xu, Yunping] Shanghai Ocean Univ, Coll Marine Sci, Shanghai Engn Res Ctr Hadal Sci & Technol, Shanghai 201306, Peoples R China; [Zhang, Qianru] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA
推荐引用方式 GB/T 7714	Liu, Maodian,Xiao, Wenjie,Zhang, Qianru,et al. Methylmercury Bioaccumulation in Deepest Ocean Fauna: Implications for Ocean Mercury Biotransport through Food Webs[J]. 北京大学,2020,7(7):469-476.
APA	Liu, Maodian,Xiao, Wenjie,Zhang, Qianru,Shi, Linlin,Wang, Xuejun,&Xu, Yunping.(2020).Methylmercury Bioaccumulation in Deepest Ocean Fauna: Implications for Ocean Mercury Biotransport through Food Webs.ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,7(7),469-476.
MLA	Liu, Maodian,et al."Methylmercury Bioaccumulation in Deepest Ocean Fauna: Implications for Ocean Mercury Biotransport through Food Webs".ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 7.7(2020):469-476.