Hydrodynamics Mediates Biogeochemical Dynamics of Particulate Organic Matter in the Shelf of the Northern South China Sea During Summer
文献类型： 外文期刊
作者： Jiang, Zhiqin 1 ; Shi, Zhen 1 ; Chen, Dawei 1 ; Li, Xiangfu 1 ; Li, Ruihuan 3 ; Xu, Jie 4 ;
作者机构： 1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Peoples R China
2.Univ Chinese Acad Sci, Coll Marine Sci, Qingdao, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Bio Breeding & Sustainab, Qingdao, Peoples R China
4.Univ Macau, Fac Sci & Technol, Ctr Reg Oceans, Macau, Peoples R China
5.Univ Macau, Fac Sci & Technol, Dept Ocean Sci & Technol, Macau, Peoples R China
关键词： particulate organic matter; stable isotopes of carbon and nitrogen; phytoplankton community; the Pearl River Dilution Water; upwelling; anticyclonic eddy
期刊名称：JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS （ 影响因子：3.4； 五年影响因子：4.0 ）
ISSN： 2169-9275
年卷期： 2024 年 129 卷 10 期
页码：
收录情况： SCI
摘要： Environmental conditions, physiology and community composition of phytoplankton and the carbon and nitrogen isotope signature (delta C-13(POC) and delta N-15(PN)) of particulate organic matter (POM) often covary across marine environments. However, little was known on the link of delta C-13(POC) and delta N-15(PN) and the community and biochemical composition of phytoplankton. In this study, particulate organic carbon (POC) and nitrogen (PN), delta C-13(POC), delta N-15(PN), phytoplankton community composition and biomass were determined during summer, along with environmental variables, in the shelf of the northern South China Sea influenced by the Pearl River plume, upwelling and anticyclonic eddy. Our results show that variability in delta C-13(POC) and delta N-15(PN) along an environmental gradient is coupled with shifts in phytoplankton community composition and carbon to chlorophyll a (C:Chl a) ratio of phytoplankton. Low delta C-13(POC) values (-28.4 to -27.0 parts per thousand) at nearshore stations (salinity <21) were primarily due to terrestrial POM input. High delta C-13(POC) (>-21.0 parts per thousand) and delta N-15(PN) (>5.6 parts per thousand) values are most likely attributed to high abundance of diatoms induced by riverine nutrients in the plume-impacted waters with intermediate salinity (21< salinity <33). Low delta C-13(POC) (<-22.0 parts per thousand) and delta N-15(PN) (-1.1-3.7 parts per thousand) values are associated with high abundance of slow-growing cyanobacteria in the oligotrophic area (salinity >33), where the lowest delta N-15(PN) is most likely attributed to high abundance of N-2-fixing Trichodesmium spp., due to the influence of the anticyclonic eddy. Therefore, hydrodynamics modulates the biochemical composition and community composition of phytoplankton, leading to changes in delta C-13(POC) and delta N-15(PN). Our findings advance our understanding of the coupling of physical and biogeochemical processes in marginal seas.
- 相关文献
作者其他论文 更多>>
-
A Comprehensive Review of Diatom-Bacterial Interactions Inferred From Bibliometric Analysis
作者：Hu, Caiqin;Hu, Tiehuan;Gao, Yuan;Liu, Qianfu;Wang, Chao;Hu, Caiqin;Gao, Yuan;Liu, Qianfu;Wang, Chao;Hu, Caiqin;Gao, Yuan;Liu, Qianfu;Wang, Chao;Shi, Zhen;Hu, Tiehuan;Gao, Yuan;Liu, Qianfu;Wang, Chao;Gao, Yuan;Liu, Qianfu;Wang, Chao
关键词：bacteria; bibliometric analysis; diatom; microbial interactions; research foci
-
Spatial distribution of bacteria in response to phytoplankton community and multiple environmental factors in surface waters in Sanggou Bay
作者：Peng, Song;Bi, Rong;Cui, Jiaxuan;Fu, Xinkai;Xiao, Xiaotong;Xu, Shulan;Zhang, Chuanli;Zhao, Meixun;Peng, Song;Bi, Rong;Cui, Jiaxuan;Fu, Xinkai;Xiao, Xiaotong;Xu, Shulan;Zhang, Chuanli;Zhao, Meixun;Peng, Song;Bi, Rong;Liu, Jiwen;Cui, Jiaxuan;Fu, Xinkai;Xiao, Xiaotong;Xu, Shulan;Zhang, Chuanli;Zhang, Xiao-Hua;Liu, Jiwen;Zhang, Xiao-Hua;Liu, Jiwen;Zhang, Xiao-Hua;Li, Ruihuan;Jiang, Zengjie;Zhao, Meixun
关键词：Bacterial community structure; Phytoplankton; Carbon cycle; Intensive aquaculture activities; Coastal bays
-
Utilization of rice husk ash as a potential catalyst for diatom growth and adsorbent for heavy metals in aquaculture systems
作者：Jiang, Weiwei;Zhang, Kai;Wang, Linhua;Wang, Weixin;Du, Meirong;Li, Ruihuan;Fang, Jianguang;Jiang, Zengjie
关键词：Rice husk ash; Silicate; Diatom; Heavy metal; Aquaculture
-
Effect of linoleic acid-induced oxidation on the water retention of golden pompano: Myoglobin and myofibrillar protein oxidation
作者：Xu, Chencai;Chen, Guanyi;Xu, Jie;Chen, Chunbei;Xia, Qiuyu;Sun, Qinxiu;Wei, Shuai;Han, Zongyuan;Wang, Zefu;Liu, Shucheng;Chen, Shengjun;Sun, Qinxiu;Liu, Shucheng
关键词：Golden pompano; Water holding capacity; Linoleic acid-induced oxidation; Myoglobin; Myofibrillar protein
-
Bioavailability of trace metals in sediments from Daya bay nature reserve: Spatial variation, controlling factors and the exposure risk assessment for aquatic biota
作者：Kuang, Zexing;Wang, Huijuan;Fan, Zhengqiu;Wang, Shoubing;Kuang, Zexing;Wang, Huijuan;Liu, Qingxia;Gu, Yangguang;Huang, Honghui;Shi, Zhen;Du, Sen;Gong, Haixing;Gong, Haixing
关键词：Trace metal bioavailability; Sequential extraction; Diffusive gradients in thin films (DGT); Aquatic biota; Ecological risk
-
Silicon balance in an integrated multi-tropical aquaculture ecosystem, Sanggou Bay, China
作者：Li, Ruihuan;Jiang, Zengjie;Lin, Fan;Wang, Weixin;Zhang, Kai;Li, Weiwei;Wan, Dongjie;Shi, Yazhou;Jiang, Zengjie;Zhang, Yitao
关键词：silicon; nutrient; budget; biodeposition; aquaculture activity; Sanggou Bay
-
Hydrodynamics drives shifts in phytoplankton community composition and carbon-to-chlorophyll a ratio in the northern South China Sea
作者：Chen, Dawei;Shi, Zhen;Li, Xiangfu;Cheng, Yuanyue;Chen, Dawei;Li, Ruihuan;Xu, Jie;Xu, Jie;Xu, Jie
关键词：hydrodynamics; Pearl River plume; phytoplankton community; phytoplankton carbon; C:Chl a ratio
