Picoplankton distribution in different water masses of the East China Sea in autumn and winter

IOCAS-IR

	Picoplankton distribution in different water masses of the East China Sea in autumn and winter
	Zhao L(赵丽); Zhao Y(赵苑); Zhang WC(张武昌); Zhou F(周锋); Zhang CX(张翠霞); Ren JL(任景玲); Ni XB(倪晓波); DENIS Michel ; Xiao T(肖天)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2013-03-15
出版年	2013
卷号	v.31 期号:02 页码:3-22
文献类型	CNKI期刊论文
摘要	Picoplankton distribution was investigated in different water masses of the East China Sea in November,2006 and February,2007.The autumn and winter cruises crossed three major water masses:the coastal water mass(CWM),the mixed water mass(MWM),which forms on the continental shelf,and the Kuroshio water mass(KWM).Picoplankton composition was resolved into four main groups by flow cytometry,namely Synechococcus,Prochlorococcus,picoeukaryotes,and heterotrophic bacteria.The average abundances of Synechococcus,picoeukaryotes,and heterotrophic bacteria were(0.63±10.88)×103,(1.61±1.16)×103,(3.39±1.27)×105 cells/mL in autumn and(6.45±8.60)×103,(3.23±2.63)×103,(3.76±1.37)×105 cells/mL in winter,respectively.Prochlorococcus was not found in the CWM and seldom observed in surface samples in either season.However,Prochlorococcus was observed in the MWM and KWM(approximately 10 3 cells/mL) in both autumn and winter.Synechococcus distribution varied considerably among water masses,with the highest levels in KWM and lowest levels in CWM.The depth-averaged integrated abundance of Synechococcus was approximately 5-fold higher in KWM than in CWM,which may be due primarily to water temperature.In the MWM,Synechococcus was resolved as two subgroups;the presence of both subgroups was more common in autumn.Picoeukaryote abundance varied less among water masses than Synechococcus,and heterotrophic bacteria depth-averaged integrated abundance exhibited the smallest seasonal variations with respect to water mass.Correlation analysis showed that relationships between picoplankton abundances and environmental factors(temperature,nutrients,and chlorophyll a) differed among the three water masses,suggesting that the three water masses have different effects on picoplankton distribution(particularly Synechococcus).
关键词	Synechococcus Prochlorococcus picoeukaryotes heterotrophic bacteria water masses East China Sea
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A006;A010;
CNKI专题名称	生物学;海洋学;
分类号	Q178.53
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the National Basic Research Program of China(973 Program)(No.2011CB409804) ; the National Natural Science Foundation of China for Creative Research Groups(No.41121064) ; the Knowledge Innovation Program of China(No.KZCX2-YW-Q07-02)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/190935
专题	中国科学院海洋研究所
作者单位	1.KeyLaboratoryofMarineEcologyandEnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 2.GraduateUniversityofChineseAcademyofSciences 3.MediterraneanInstituteofOceanology,Aix-MarseilleUniversity,CNRS-INSU,163AvenuedeLumimy,Case901,13288,MarseilleCedex09,France 4.KeyLaboratoryofMarineEcosystemandBiogeochemistry,SecondInstituteofOceanography,StateOceanicAdministration 5.KeyLaboratoryofMarineChemistryTheoryandTechnology,MinistryofEducation,OceanUniversityofChina
推荐引用方式 GB/T 7714	Zhao L,Zhao Y,Zhang WC,et al. Picoplankton distribution in different water masses of the East China Sea in autumn and winter. 2013.