Concentrations and distribution of transparent exopolymer particles in a eutrophic coastal sea: a case study of the Changjiang (Yangtze River) estuary

doi:10.1071/MF18211

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	Concentrations and distribution of transparent exopolymer particles in a eutrophic coastal sea: a case study of the Changjiang (Yangtze River) estuary
	Guo, Shujin 2,3,4; Sun, Xiaoxia1,2,3,4
刊名	MARINE AND FRESHWATER RESEARCH
	2019
卷号	70 期号:10 页码:1389-1401
关键词	biogeochemistry eutrophication marine phytoplankton
ISSN号	1323-1650
DOI	10.1071/MF18211
通讯作者	Sun, Xiaoxia(xsun@qdio.ac.cn)
英文摘要	Transparent exopolymer particles (TEPs) contribute to carbon export and can represent a significant part of the carbon pool, most notably in eutrophic systems. This study represents the first investigation of the concentrations and distribution of TEPs in the Changjiang (Yangtze River) estuary, one of the most eutrophic coastal seas in the world. The concentration of TEPs was determined on a seasonal basis (spring, summer and autumn), and the distribution patterns of TEPs were studied with respect to physical, chemical and biological conditions. Spatially, TEP concentrations exhibited a significant positive correlation with chlorophyll-a concentrations in spring and summer, which implies a consistent production of TEPs by phytoplankton cells. Vertically, TEP concentrations decreased gradually from the surface layer to the bottom layer in spring and summer, but were distributed homogenously in the water column in autumn. Values of nitrogen:phosphorus ratio (N:P) were found to have a significant positive correlation with TEP concentrations in summer, indicating that a P limitation would probably accelerate production and formation of TEPs. TEP-carbon (TEP-C) concentration was found to be similar to phytoplankton-C in the study area, highlighting the fact that TEP-C could represent a significant fraction of the particulate organic carbon pool in the Changjiang (Yangtze River) estuary.
资助项目	National Natural Science Foundation of China[31700425] ; National Natural Science Foundation of China[91751202] ; Innovation Plan of Science and Technology for AoShan[2016ASKJ02]
WOS研究方向	Fisheries ; Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	CSIRO PUBLISHING
WOS记录号	WOS:000489060900004
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/163214]
专题	海洋研究所_胶州湾海洋生态系统国家野外研究站
通讯作者	Sun, Xiaoxia
作者单位	1.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, 1 Wenhai Rd, Qingdao 266237, Shandong, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Natl Marine Ecosyst Res Stn, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Guo, Shujin,Sun, Xiaoxia. Concentrations and distribution of transparent exopolymer particles in a eutrophic coastal sea: a case study of the Changjiang (Yangtze River) estuary[J]. MARINE AND FRESHWATER RESEARCH,2019,70(10):1389-1401.
APA	Guo, Shujin,&Sun, Xiaoxia.(2019).Concentrations and distribution of transparent exopolymer particles in a eutrophic coastal sea: a case study of the Changjiang (Yangtze River) estuary.MARINE AND FRESHWATER RESEARCH,70(10),1389-1401.
MLA	Guo, Shujin,et al."Concentrations and distribution of transparent exopolymer particles in a eutrophic coastal sea: a case study of the Changjiang (Yangtze River) estuary".MARINE AND FRESHWATER RESEARCH 70.10(2019):1389-1401.