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学科主题: Oceanography
题名: Phytoplankton assemblage structure shaped by key environmental variables in the Pearl River Estuary, South China
作者: Zhang, X ; Zhang, JP ; Huang, XP ; Huang, LM
通讯作者: xphuang@scsio.ac.cn
关键词: the Pearl River Estuary ; phytoplankton ; ecological associations ; turbidity ; salinity gradient
刊名: JOURNAL OF OCEAN UNIVERSITY OF CHINA
发表日期: 2014
卷: 13, 期:1, 页:73-82
收录类别: sci
部门归属: [Zhang Xia ; Zhang Jingping ; Huang Xiaoping ; Huang Liangmin] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
项目归属: LMB
资助者: National Natural Sciences Foundation of China [31000185, 41076069]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11020205]
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.
原文出处: 查看原文
WOS记录号: WOS:000330312000009
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10475
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Zhang, X; Zhang, JP; Huang, XP; Huang, LM.Phytoplankton assemblage structure shaped by key environmental variables in the Pearl River Estuary, South China,JOURNAL OF OCEAN UNIVERSITY OF CHINA,2014,13(1):73-82
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