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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, Shujin1,2,3; Sun, Xiaoxia1,2,3,4
2019
Source PublicationMARINE AND FRESHWATER RESEARCH
ISSN1323-1650
Volume70Issue:10Pages:1389-1401
Corresponding AuthorSun, Xiaoxia(xsun@qdio.ac.cn)
AbstractTransparent 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.
Keywordbiogeochemistry eutrophication marine phytoplankton
DOI10.1071/MF18211
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31700425] ; National Natural Science Foundation of China[91751202] ; Innovation Plan of Science and Technology for AoShan[2016ASKJ02]
WOS Research AreaFisheries ; Marine & Freshwater Biology ; Oceanography
WOS SubjectFisheries ; Limnology ; Marine & Freshwater Biology ; Oceanography
WOS IDWOS:000489060900004
PublisherCSIRO PUBLISHING
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/163215
Collection胶州湾海洋生态系统国家野外研究站
Corresponding AuthorSun, Xiaoxia
Affiliation1.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Natl Marine Ecosyst Res Stn, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, 1 Wenhai Rd, Qingdao 266237, Shandong, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
4.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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