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Penetration of Bomb C-14 Into the Deepest Ocean Trench

文献类型：期刊论文

作者Wang, Ning1; Shen, Chengde1; Sun, Weidong2,3; Ding, Ping1; Zhu, Sanyuan4; Yi, Weixi1; Yu, Zhigiang4; Sha, Hongli2,5; Mi, Mei6; He, Lisheng7
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2019-05-28
卷号46期号:10页码:5413-5419
ISSN号0094-8276
DOI10.1029/2018GL081514
通讯作者Shen, Chengde(cdshen@gig.ac.cn) ; Sun, Weidong(weidongsun@qdio.ac.cn) ; Fang, Jiasong(jfang@hpu.edu)
英文摘要The 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.
资助项目National 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研究方向Geology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000471237500045
源URL[http://ir.qdio.ac.cn/handle/337002/161767]  
专题海洋研究所_深海极端环境与生命过程研究中心
通讯作者Shen, Chengde; Sun, Weidong; Fang, Jiasong
作者单位1.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
推荐引用方式
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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来源：海洋研究所

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