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

doi:10.1007/s00343-013-2085-3

	Picoplankton distribution in different water masses of the East China Sea in autumn and winter
	Zhao Li 1,2,3; Zhao Yuan 1; Zhang Wuchang 1; Zhou Feng 4; Zhang Cuixia 1,2; Ren Jingling 5; Ni Xiaobo 4; Denis, Michel 3; Xiao Tian 1; Xiao, T
	2013-03-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	31 期号:2 页码:247-266
文章类型	Article
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)x10(3), (1.61 +/- 1.16)x10(3), (3.39 +/- 1.27)x10(5) cells/mL in autumn and (6.45 +/- 8.60)x10(3), (3.23 +/- 2.63)x10(3), (3.76 +/- 1.37)x10(5) 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).; 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)x10(3), (1.61 +/- 1.16)x10(3), (3.39 +/- 1.27)x10(5) cells/mL in autumn and (6.45 +/- 8.60)x10(3), (3.23 +/- 2.63)x10(3), (3.76 +/- 1.37)x10(5) 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
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-013-2085-3
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000316018300001
WOS关键词	GROWTH-RATES ; PHYTOPLANKTON BIOMASS ; COMMUNITY STRUCTURE ; CHROOCOCCOID CYANOBACTERIA ; HETEROTROPHIC BACTERIA ; PICOPHYTOPLANKTON PHOTOSYNTHESIS ; AUTOTROPHIC PICOPLANKTON ; TEMPORAL VARIATION ; CONTINENTAL-SHELF ; WESTERN PACIFIC
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/16486
专题	海洋生态与环境科学重点实验室
通讯作者	Xiao, T
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Aix Marseille Univ, CNRS INSU, Mediterranean Inst Oceanol, F-13288 Marseille 09, France 4.State Ocean Adm, Inst Oceanog 2, Key Lab Marine Ecosyst & Biogeochem, Hangzhou 310012, Zhejiang, Peoples R China 5.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhao Li,Zhao Yuan,Zhang Wuchang,et al. Picoplankton distribution in different water masses of the East China Sea in autumn and winter[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(2):247-266.
APA	Zhao Li.,Zhao Yuan.,Zhang Wuchang.,Zhou Feng.,Zhang Cuixia.,...&Xiao, T.(2013).Picoplankton distribution in different water masses of the East China Sea in autumn and winter.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(2),247-266.
MLA	Zhao Li,et al."Picoplankton distribution in different water masses of the East China Sea in autumn and winter".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.2(2013):247-266.

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