Phytoplankton assemblage structure shaped by key environmental variables in the Pearl River Estuary, South China

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	Phytoplankton assemblage structure shaped by key environmental variables in the Pearl River Estuary, South China
	Zhang, X ; Zhang, JP ; Huang, XP ; Huang, LM
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2014
卷号	13 期号:1 页码:73-82
关键词	the Pearl River Estuary phytoplankton ecological associations turbidity salinity gradient
ISSN号	1672-5182
通讯作者	xphuang@scsio.ac.cn
中文摘要	Spatial distribution and temporal dynamics of phytoplankton community and their relationships with environmental factors were studied in the Pearl River Estuary (PRE), South China, in three seasons. Salinity was considered as the key environmental variable controlling horizontal distributions of phytoplankton community composition. A transition from dominance of freshwater diatoms (Aulacoseira granulata and A. granulata v. angustissima) to estuarine species (Skeletonema costatum and Pseudonitzschia delicatissima) was observed in the high flow season (summer) along the estuary gradient; in the low flow season (spring), the inner estuary was relatively homogeneous and some typical estuarine species could be found near the river mouth. In the normal flow season (autumn), a potentially toxic bluegreen species, Microcystis spp. was predominant in the middle reaches of the estuary, which should be seeded from upstream and transported downstream by river discharges. Phytoplankton abundance was negatively correlated with suspended solid content and nutrient concentration in the PRE, suggesting that turbidity and nutrient availability were the crucial factors regulating the algal biomass. Phytoplankton abundance in the outer estuary was enhanced by increasing irradiance and continued to be enhanced until phosphorus-limitation.
学科主题	Oceanography
收录类别	SCI
资助信息	National Natural Sciences Foundation of China [31000185, 41076069]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11020205]
原文出处	OCEAN UNIV CHINA
WOS记录号	WOS:000330312000009
公开日期	2014-12-11
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10475]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	Zhang, X,Zhang, JP,Huang, XP,et al. Phytoplankton assemblage structure shaped by key environmental variables in the Pearl River Estuary, South China[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2014,13(1):73-82.
APA	Zhang, X,Zhang, JP,Huang, XP,&Huang, LM.(2014).Phytoplankton assemblage structure shaped by key environmental variables in the Pearl River Estuary, South China.JOURNAL OF OCEAN UNIVERSITY OF CHINA,13(1),73-82.
MLA	Zhang, X,et al."Phytoplankton assemblage structure shaped by key environmental variables in the Pearl River Estuary, South China".JOURNAL OF OCEAN UNIVERSITY OF CHINA 13.1(2014):73-82.