Effects of typhoon Roke and Haitang on phytoplankton community structure in northeastern South China sea  

作　　者：Yingjie Mao Jun Sun Congcong Guo Yuqiu Wei Xingzhou Wang Shuang Yang Chao Wu 

机构地区：[1]Laboratory of Marine Resources and Chemistry,Tianjin University of Science and Technology,Tianjin,China [2]Research Centre for Indian Ocean Ecosystem,Tianjin University of Science and Technology,Tianjin,China [3]Institute of Marine Science and Technology,Shandong University,Qingdao,China

出　　处：《Ecosystem Health and Sustainability》2019年第1期144-154,I0012,共12页生态系统健康与可持续性（英文）

基　　金：This research was financially supported by National Natural Science Foundation of China grants(41876134,41676112 and 41276124);the Changjiang Scholar Program of Chinese Ministry of Education(T2014253)to Jun Sun;We would also like to thank the Open Cruise Project in northeastern South China Sea of National Natural Science Foundation of China(NORC2017-07)for sharing their ship time.

摘　　要：The influence of typhoon and Kuroshio intrusion process on the natural phytoplankton assemblages in the northeastern South China Sea(neSCS)was examined during a cruise in summer 2017.One hundred ninety-six seawater samples were collected and analyzed in the neSCS.In total,299 species were identified belonging to 82 genera,mostly dominated by Bacillariophyta(159),followed by Dinophyta(132),Cyanophyta(4)and Chrysophyta(4).Among all,Thalassionema nitzschioides,Thalassionema frauenfeldii,Thalassiosira minima,in Bacillariophyta,Prorocentrum lenticulatum,Prorocentrum compressum in Dinophyta,and Trichodesmium thiebautii,in the Cyanophyta were the most dominated species,respectively.Correlation analysis shows compared with other groups Bacillariophyta was mostly influenced by silicate,whereas,Dinophyta and Cyanophyta showed significant correlation with temperature,salinity,phosphate,and nitrate.After the typhoon,the higher abundance of Dinophyta was observed,whereas it was lower in case of Bacillariophyta and Cyanophyta,shows typhoon“Roke“and”Haitang”had a significant influence on the phytoplankton assemblages,which could be manifested by the variations of total phytoplankton abundance in the surface water of neSCS.Overall,our present study provides the latest in-depth information about how the environmental factors influencing the phytoplankton density and diversity in the neSCS during summer.

关 键 词：PHYTOPLANKTON community structure TYPHOON South China sea KUROSHIO 

分 类 号：P73[天文地球—海洋科学]