Knowledge Management System Of The Institute of Oceanology, CAS
| 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 Publication | GEOPHYSICAL RESEARCH LETTERS
 |
| ISSN | 0094-8276 |
| Volume | 46Issue:10Pages:5413-5419 |
| Corresponding Author | Shen, Chengde(cdshen@gig.ac.cn) ; Sun, Weidong(weidongsun@qdio.ac.cn) ; Fang, Jiasong(jfang@hpu.edu) |
| Abstract | 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. |
| DOI | 10.1029/2018GL081514 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Geology |
| WOS Subject | Geosciences, Multidisciplinary |
| WOS ID | WOS:000471237500045 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/161768 |
| Collection | 深海极端环境与生命过程研究中心 |
| Corresponding Author | Shen, Chengde; Sun, Weidong; Fang, Jiasong |
| Affiliation | 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 11.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment