Benthic algae of the Xiangxi River, China

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	Benthic algae of the Xiangxi River, China
	Tang, T; Qu, XD; Li, DF; Liu, RQ; Xie, ZC; Cai, QH
刊名	JOURNAL OF FRESHWATER ECOLOGY
	2004-12-01
卷号	19 期号:4 页码:597-604
关键词	TEMPORAL VARIATION STREAM PERIPHYTON PHYTOPLANKTON SEASONALITY COMMUNITIES DISTURBANCE LIMITATION RESISTANCE SUCCESSION
ISSN号	0270-5060
通讯作者	Cai, QH, Chinese Acad Sci, Inst Hydrol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
中文摘要	From June 2000 to June 2002, four sites on the mainstem of the Xiangxi River and one site on each of its major tributaries were sampled 16 times each for benthic algae. All total, 223 taxa (most to species and variety levels) were found (193 Bacillariophyta, 20 Chlorophyta, nine Cyanophyta and one Xanthophyta). The diatoms Cocconeis placentula, Achnanthes linearis, and Diatoma vulgare dominated the system, with relative abundance of 33.3%, 18.8%, and 6.4%, respectively. The abundances of all the other taxa were under 5%, and 210 taxa collectively contributed less than 1% of the total abundance. Taxa diversity peaked in winter and reached a minimum in summer. Species richness varied considerably but was not significantly different over time. Maximum algal density occurred in later winter/spring (1.4 x 10(9) ind./m(2)) but was not significantly different from the minimum density, which occurred in August. Chlorophyll a showed similar seasonal fluctuation but also was not significantly different over time. Canonical correspondence analysis demonstrated that water hardness, depth, conductivity, and alkalinity had important influences on variation of epilithic algae in the Xiangxi River system.
英文摘要	From June 2000 to June 2002, four sites on the mainstem of the Xiangxi River and one site on each of its major tributaries were sampled 16 times each for benthic algae. All total, 223 taxa (most to species and variety levels) were found (193 Bacillariophyta, 20 Chlorophyta, nine Cyanophyta and one Xanthophyta). The diatoms Cocconeis placentula, Achnanthes linearis, and Diatoma vulgare dominated the system, with relative abundance of 33.3%, 18.8%, and 6.4%, respectively. The abundances of all the other taxa were under 5%, and 210 taxa collectively contributed less than 1% of the total abundance. Taxa diversity peaked in winter and reached a minimum in summer. Species richness varied considerably but was not significantly different over time. Maximum algal density occurred in later winter/spring (1.4 x 10(9) ind./m(2)) but was not significantly different from the minimum density, which occurred in August. Chlorophyll a showed similar seasonal fluctuation but also was not significantly different over time. Canonical correspondence analysis demonstrated that water hardness, depth, conductivity, and alkalinity had important influences on variation of epilithic algae in the Xiangxi River system.
学科主题	Ecology; Limnology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Ecology ; Limnology
研究领域[WOS]	Environmental Sciences & Ecology ; Marine & Freshwater Biology
关键词[WOS]	TEMPORAL VARIATION ; STREAM ; PERIPHYTON ; PHYTOPLANKTON ; SEASONALITY ; COMMUNITIES ; DISTURBANCE ; LIMITATION ; RESISTANCE ; SUCCESSION
收录类别	SCI
语种	英语
WOS记录号	WOS:000225656300010
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/9356]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	Chinese Acad Sci, Inst Hydrol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Tang, T,Qu, XD,Li, DF,et al. Benthic algae of the Xiangxi River, China[J]. JOURNAL OF FRESHWATER ECOLOGY,2004,19(4):597-604.
APA	Tang, T,Qu, XD,Li, DF,Liu, RQ,Xie, ZC,&Cai, QH.(2004).Benthic algae of the Xiangxi River, China.JOURNAL OF FRESHWATER ECOLOGY,19(4),597-604.
MLA	Tang, T,et al."Benthic algae of the Xiangxi River, China".JOURNAL OF FRESHWATER ECOLOGY 19.4(2004):597-604.