Proxies of hypoxia and submarine groundwater discharge in the coastal ocean: Foraminiferal shell chemical perspectives

doi:10.1016/j.marchem.2024.104434

	Proxies of hypoxia and submarine groundwater discharge in the coastal ocean: Foraminiferal shell chemical perspectives
	Guo, Xiaoyi 1,2,3,4; Lian, Ergang 5,6; Yuan, Huamao 7; Burnett, William C.8; Zhang, Han 1,2,3,4; Zhang, Miaomiao 1,2,3,4; Xiao, Kai 9; Wei, Qinsheng 10; Yu, Zhigang 1,2,3; Xu, Bochao 1,2,3
	2024-09-01
发表期刊	MARINE CHEMISTRY
ISSN	0304-4203
卷号	265 页码:7
通讯作者	Xu, Bochao([email protected])
摘要	Coastal marine settings are important in terms of geochemical cycles and biological productivity. Climate change is predicted to affect coastal environment via hypoxia and Submarine Groundwater Discharge (SGD). Appropriate proxies could help to better understand oxygenation history and the role of SGD in regulating hypoxia. This would also benefit prediction of potential outcomes of future environmental changes. The sensitivity of benthic foraminiferal shell chemistry to environmental conditions opens the possibility to use them as proxies of coastal hypoxia and SGD. We report here that the average Mn/Ca ratios in tests of living benthic foraminiferal shells in the Changjiang River Estuary (CJE) is 2.3 times higher during hypoxia periods than under well-mixed conditions. In addition, Ba/Ca ratios in living benthic foraminiferal shells co-varied well with radon-inferred SGD signals. Fluctuations of Mn/Ca and Ba/Ca ratios in tests of a single foraminiferal shell along successive chambers corresponds well with seasonal-scale variations of hypoxia and SGD. We suggest that Mn/Ca and Ba/Ca ratios within intra-tests of benthic foraminifer can provide a reliable proxy for past hypoxia and SGD trends.
关键词	Benthic foraminifera Mn/ca and Ba/ca ratios Coastal hypoxia Submarine groundwater discharge
DOI	10.1016/j.marchem.2024.104434
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42130410]; National Natural Science Foundation of China[U22A20580]; National Natural Science Foundation of China[42130703]; Natural Science Foundation of Shandong Province[ZR2023QD035]; Fundamental Research Funds for the Central Universities[202341002]; Fundamental Research Funds for the Central Universities[202072001]
WOS研究方向	Chemistry ; Oceanography
WOS类目	Chemistry, Multidisciplinary ; Oceanography
WOS记录号	WOS:001285873200001
出版者	ELSEVIER
WOS关键词	BENTHIC FORAMINIFERA ; MN/CA RATIOS ; CHANGJIANG YANGTZE ; ICP-MS ; OXYGEN ; RIVER ; TEMPERATURE ; CULTURE ; RADIUM ; BARIUM
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/197681
专题	海洋生态与环境科学重点实验室
通讯作者	Xu, Bochao
作者单位	1.Ocean Univ China, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Qingdao 266100, Peoples R China 2.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 4.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China 5.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 6.Minist Ecol & Environm, Res Ctr Monitoring & Environm Sci, Taihu Basin & East China Sea Ecol Environm Supervi, Shanghai 200120, Peoples R China 7.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 8.Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA 9.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China 10.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xiaoyi,Lian, Ergang,Yuan, Huamao,et al. Proxies of hypoxia and submarine groundwater discharge in the coastal ocean: Foraminiferal shell chemical perspectives[J]. MARINE CHEMISTRY,2024,265:7.
APA	Guo, Xiaoyi.,Lian, Ergang.,Yuan, Huamao.,Burnett, William C..,Zhang, Han.,...&Xu, Bochao.(2024).Proxies of hypoxia and submarine groundwater discharge in the coastal ocean: Foraminiferal shell chemical perspectives.MARINE CHEMISTRY,265,7.
MLA	Guo, Xiaoyi,et al."Proxies of hypoxia and submarine groundwater discharge in the coastal ocean: Foraminiferal shell chemical perspectives".MARINE CHEMISTRY 265(2024):7.