Penetration of Bomb C-14 Into the Deepest Ocean Trench
Wang, Ning1; Shen, Chengde1; Sun, Weidong2,3; Ding, Ping1; Zhu, Sanyuan4; Yi, Weixi1; Yu, Zhigiang4; Sha, Hongli2,5; Mi, Mei6; He, Lisheng7; Fang, Jiasong8,9; Li, Kexin10; Xu, Xiaomei11; Druffel, Ellen R. M.11
2019-05-28
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Volume46Issue:10Pages:5413-5419
AbstractThe food source of hadal endemic fauna provides an insight into the carbon cycle in trenches and a biological adaptation to the impoverished and harsh trench environment. Here, we present the first Delta C-14 results of hadal amphipods from three trenches in the Pacific to define the organic matter source in these remote ecosystems. Amphipod muscle tissues contain a bomb C-14 signature (Delta C-14 from 10 +/- 2 parts per thousand to 65 +/- 2 parts per thousand), thereby revealing a dietary preference for labile and fresh organic matter derived from the surface water. Thus, the carbon cycle in the deepest ocean trench has a tight linkage with the surface ocean via the food chain. The bomb C-14 dating result suggests that hadal amphipods have a low tissue turnover rate and an unexpectedly long lifetime (>10 years), at more than 4 times higher than the common longevity (similar to 2 years) of amphipods in shallow waters. Plain Language Summary Hadal trenches (depth > 6,000 m) are the remotest and the least explored places on our planet, with characteristics of low temperatures, high pressure, limited food, and frequent geological activity. Knowing the source of organic matter for hadal life is key in understanding the ocean carbon cycle and the biological adaptation in trenches. We report the first C-14 results of hadal amphipods from three trenches in the West Pacific, including the deepest ocean trench, Mariana, which indicates that the organic matter for amphipods is mostly from the surface water. This tight linkage between the organic matter within the hadal fauna and in surface water points out that the anthropogenic pollution can reach the deepest ocean trench rapidly via the food chain. Moreover, the bomb C-14 dating method can be applied to hadal amphipods, thereby suggesting a low tissue turnover rate and an unexpectedly long lifetime, which might be a result of an adaptation to the impoverished and harsh environment.
DOI10.1029/2018GL081514
Indexed BySCI ; SCI
Funding OrganizationNational Key R&D Program of China ; Senior User Project of RV KEXUE ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
Language英语
Funding ProjectNational Key R&D Program of China[2018YFC0309800] ; National Key R&D Program of China[2018YFC0310600] ; Senior User Project of RV KEXUE[KEXUE2017G13] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB06010103] ; National Natural Science Foundation of China[41773069]
WOS KeywordMARIANA TRENCH ; ORGANIC-MATTER ; RADIOCARBON ; PACIFIC ; CARBON ; NORTH ; AMPHIPODS ; INSIGHTS ; WATER ; SIZE
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000471237500045
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/6865
Collection深海科学研究部_深海生物学研究室_深海无脊椎动物蛋白质组学及分子生物学研究组
Corresponding AuthorShen, Chengde; Sun, Weidong; Fang, Jiasong
Affiliation1.Chinese Acad Sci, Guangznou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Guangdong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Shandong, Peoples R China
3.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao, Shandong, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Guangdong, Peoples R China
5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Shandong, Peoples R China
6.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou, Guangdong, Peoples R China
7.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
8.Shanghai Ocean Univ, Hadal Sci & Technol Res Ctr, Shanghai, Peoples R China
9.Hawaii Pacific Univ, Coll Nat & Computat Sci, Honolulu, HI 96813 USA
10.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China
11.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA
Recommended Citation
GB/T 7714
Wang, Ning,Shen, Chengde,Sun, Weidong,et al. Penetration of Bomb C-14 Into the Deepest Ocean Trench[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(10):5413-5419.
APA Wang, Ning.,Shen, Chengde.,Sun, Weidong.,Ding, Ping.,Zhu, Sanyuan.,...&Druffel, Ellen R. M..(2019).Penetration of Bomb C-14 Into the Deepest Ocean Trench.GEOPHYSICAL RESEARCH LETTERS,46(10),5413-5419.
MLA Wang, Ning,et al."Penetration of Bomb C-14 Into the Deepest Ocean Trench".GEOPHYSICAL RESEARCH LETTERS 46.10(2019):5413-5419.
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