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Variations in isoprenoid tetraether lipids through the water column of the Western Pacific Ocean: Implications for sedimentary TEX86 records

文献类型：期刊论文

作者Guo, Jinqiang4,5; Wang, Zongyue2,3,5; Achterberg, Eric P.4; Yuan, Huamao1,2,3,5; Song, Jinming1,2,3,5; Wang, Yuning2,3,5; Li, Xuegang1,2,3,5; Duan, Liqin1,2,3,5; Qu, Baoxiao1,2,3,5
刊名GEOCHIMICA ET COSMOCHIMICA ACTA
出版日期2024-03-01
卷号368页码:24-33
关键词Isoprenoid GDGTs Archaeal community TEX86 Suspended particulate matter Western Pacific Ocean
ISSN号0016-7037
DOI10.1016/j.gca.2024.01.013
通讯作者Yuan, Huamao(yuanhuamao@qdio.ac.cn)
英文摘要The TetraEther indeX of 86 carbon atoms (TEX86) is widely used as a proxy to reconstruct past sea surface temperatures. Most current applications of TEX86 are primarily based on analyzing the composition of isoprenoid glycerol dialkyl glycerol tetraethers (isoGDGTs) that comprise TEX86 in sediments, with the assumption that the sedimentary isoGDGTs are mainly derived from the surface mixed layer. Here we report on the variations in the isoGDGT distribution, archaeal abundance and community through the water column of the Western Pacific Ocean, directly testing the export depth of isoGDGTs and constraining the temperature records of TEX86. Our data show that maximum isoGDGT concentrations occurred in subsurface waters (150-200 m) with maximum archaeal abundances. The ratio between isoGDGTs bearing 2 vs. 3 cyclopentane moieties, i.e. [2/3] ratio, increased with depth, which is likely related to the shift of the archaeal community from Ca. Nitrosopelagicusdominance to norank_f__Nitrosopumilaceae-dominance. Models based on the [2/3] ratios in the water column predicted an average export depth of isoGDGTs to sediments of around 150-200 m, consistent with the robust relationship between the compiled sedimentary TEX86 and the annual mean subsurface temperature. Taken together, our findings support that TEX86 records subsurface rather than surface temperatures in the open ocean.
WOS关键词AMMONIA-OXIDIZING ARCHAEA ; SEA-SURFACE TEMPERATURES ; OXYGEN MINIMUM ZONE ; NITROSOPUMILUS-MARITIMUS ; PARTICULATE MATTER ; GDGT DISTRIBUTIONS ; MEMBRANE-LIPIDS ; BACTERIA ; NITRIFICATION ; PRODUCTIVITY
资助项目National Natural Science Foundation of China (NSFC)[91958103] ; National Natural Science Foundation of China (NSFC)[42276038] ; National Natural Science Foundation of China (NSFC)[42276206] ; Shandong Province Natural Science Foundation[ZR2020YQ28] ; Taishan Scholars Program[tsqn202211256] ; Two-Hundred Talents Plan of Yantai Scholar Project Special Funding ; NSFC ; [42049909]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:001173875400001
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/184813]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Yuan, Huamao
作者单位1.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Laoshan Lab, Lab Marine Ecol & Environm Sci Lab, Qingdao 266237, Peoples R China
4.GEOMAR Helmholtz Ctr Ocean Res, Marine Biogeochem Div, D-24148 Kiel, Germany
5.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Jinqiang,Wang, Zongyue,Achterberg, Eric P.,et al. Variations in isoprenoid tetraether lipids through the water column of the Western Pacific Ocean: Implications for sedimentary TEX86 records[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2024,368:24-33.
APA Guo, Jinqiang.,Wang, Zongyue.,Achterberg, Eric P..,Yuan, Huamao.,Song, Jinming.,...&Qu, Baoxiao.(2024).Variations in isoprenoid tetraether lipids through the water column of the Western Pacific Ocean: Implications for sedimentary TEX86 records.GEOCHIMICA ET COSMOCHIMICA ACTA,368,24-33.
MLA Guo, Jinqiang,et al."Variations in isoprenoid tetraether lipids through the water column of the Western Pacific Ocean: Implications for sedimentary TEX86 records".GEOCHIMICA ET COSMOCHIMICA ACTA 368(2024):24-33.

入库方式： OAI收割

来源：海洋研究所

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