Composition variations and spatiotemporal dynamics of dissolved organic matters during the occurrence of green tide (Ulva prolifera blooms) in the Southern Yellow Sea, China
文献类型： 外文期刊
作者： Li, Xiuzhu 1 ; Li, Conghe 1 ; Bai, Ying 2 ; Shi, Xiaoyong 1 ; Su, Rongguo 1 ;
作者机构： 1.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Shandong, Peoples R China
2.Chinese Acad Fishery Sci, Minist Agr & Rural Affairs, Yellow Sea Fisheries Res Inst,Pilot Natl Lab Mari, Key Lab Sustainable Dev Marine Fisheries,Lab Mari, Qingdao 266071, Shandong, Peoples R China
3.Natl Marine Hazard Mitigat Serv, Beijing 100194, Peoples R China
关键词： Dissolved organic matter; Dissolved organic carbon; Green tide blooms; Southern Yellow Sea; Influence
期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）
ISSN： 0025-326X
年卷期： 2019 年 146 卷
页码：
收录情况： SCI
摘要： Seawater samples were collected from April 6 to September 6, 2017 in the Southern Yellow Sea, China where green tides often occurred, and analyzed for nutrients, dissolved organic carbon (DOC), and fluorescent dissolved organic matter (FDOM). The DOC concentrations increased significantly in the green tide areas by approximately 1.2 times compared to those in the non-green tide areas. From the large-scale outbreak to the complete dissipation of the green tide, the fluorescence intensities of the four FDOM fluorescent components identified in the green tide areas were significantly higher than those in the non-green tide areas. During the extinction period, the fluorescence intensities of the three humus-like components and one protein-like component were approximately 1.8 and 1.3 times higher than those in the non-green tide areas, respectively. These findings suggested that the outbreak of green tide could release DOM into water and affect the biogeochemical cycle in green tide regions.
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