IDSSE OpenIR  > 深海科学研究部  > 深海地质与地球化学研究室
Methylmercury produced in upper oceans accumulates in deep Mariana Trench fauna
Sun, Ruoyu1; Yuan, Jingjing1; Sonke, Jeroen E.2; Zhang, Yanxu3; Zhang, Tong4; Zheng, Wang1; Chen, Shun5; Meng, Mei1; Chen, Jiubin1; Liu, Yi1; Peng, Xiaotong5; Liu, Congqiang1
2020-07-07
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume11Issue:1Pages:9
AbstractMonomethylmercury (MMHg) is a potent toxin that bioaccumulates and magnifies in marine food webs. Recent studies show abundant methylated Hg in deep oceans (>1000 m), yet its origin remains uncertain. Here we measured Hg isotope compositions in fauna and surface sediments from the Mariana Trench. The trench fauna at 7000-11000m depth all have substantially positive mass-independent fractionation of odd Hg isotopes (odd-MIF), which can be generated only in the photic zone via MMHg photo-degradation. Given the identical odd-MIF in trench fauna and North Pacific upper ocean (<1000 m) biota MMHg, we suggest that the accumulated Hg in trench fauna originates exclusively from MMHg produced in upper oceans, which penetrates to depth by sorption to sinking particles. Our findings reveal little in-situ MMHg production in deep oceans and imply that anthropogenic Hg released at the Earth's surface is much more pervasive across deep oceans than was previously thought.
DOI10.1038/s41467-020-17045-3
Indexed BySCI ; SCI
Funding OrganizationNational Key Research and Development Plan ; National Natural Science Foundation of China ; Tianjin Natural Science Foundation
Language英语
Funding ProjectNational Key Research and Development Plan[2016YFC0300503] ; National Key Research and Development Plan[2017YFC0212700] ; National Natural Science Foundation of China[41625012] ; National Natural Science Foundation of China[41602345] ; National Natural Science Foundation of China[41922019] ; National Natural Science Foundation of China[U1612442] ; National Natural Science Foundation of China[41961144028] ; Tianjin Natural Science Foundation[17JCYBJC23500]
WOS KeywordMERCURY ISOTOPES ; TROPHIC TRANSFER ; INDEPENDENT FRACTIONATION ; HG ; METHYLATION ; DEMETHYLATION ; PRECONCENTRATION ; ENVIRONMENT ; REDUCTION ; SULFATE
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000548309100008
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/7821
Collection深海科学研究部_深海地质与地球化学研究室
专家咨询委员会
Corresponding AuthorLiu, Yi; Peng, Xiaotong
Affiliation1.Tianjin Univ, Sch Earth Syst Sci, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China
2.Univ Paul Sabatier Toulouse III, Lab Geosci Environm Toulouse, CNRS, Inst Res & Dev, F-31400 Toulouse, France
3.Nanjing Univ, Sch Atmospher Sci, Nanjing 210023, Jiangsu, Peoples R China
4.Nankai Univ, Tianjin Key Lab Environm Remediat & Pollut Contro, Key Lab Pollut Proc & Environm Criteria, Coll Environm Sci & Engn,Minist Educ, 38 Tongyan Rd, Tianjin 300350, Peoples R China
5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Deep Sea Sci Div, Sanya 572000, Hainan, Peoples R China
Recommended Citation
GB/T 7714
Sun, Ruoyu,Yuan, Jingjing,Sonke, Jeroen E.,et al. Methylmercury produced in upper oceans accumulates in deep Mariana Trench fauna[J]. NATURE COMMUNICATIONS,2020,11(1):9.
APA Sun, Ruoyu.,Yuan, Jingjing.,Sonke, Jeroen E..,Zhang, Yanxu.,Zhang, Tong.,...&Liu, Congqiang.(2020).Methylmercury produced in upper oceans accumulates in deep Mariana Trench fauna.NATURE COMMUNICATIONS,11(1),9.
MLA Sun, Ruoyu,et al."Methylmercury produced in upper oceans accumulates in deep Mariana Trench fauna".NATURE COMMUNICATIONS 11.1(2020):9.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sun, Ruoyu]'s Articles
[Yuan, Jingjing]'s Articles
[Sonke, Jeroen E.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sun, Ruoyu]'s Articles
[Yuan, Jingjing]'s Articles
[Sonke, Jeroen E.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sun, Ruoyu]'s Articles
[Yuan, Jingjing]'s Articles
[Sonke, Jeroen E.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.