中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 藻类生物学及应用研究中心  > 期刊论文
题名: Distribution patterns of benthic diatoms during summer in the Niyang River, Tibet, China
作者: Pei Guofeng ; Liu Guoxiang
通讯作者: Liu, GX (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.
关键词: benthic diatoms ; diatom density ; biodiversity ; bio-assessment ; Niyang River
刊名: CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
发表日期: 2011
卷: 29, 期:6, 页:1192-1198
收录类别: SCI
部门归属: [Liu Guoxiang] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Pei Guofeng] S Cent Univ Nationalities, Key Lab Microorganism & Biotransformat, Wuhan 430074, Peoples R China
资助者: National Natural Science Foundation of China[30970550]
摘要: The aim of this study was to investigate the distribution, density, community structure and biodiversity characteristics of benthic diatoms, and to analyze whether differences in species composition and abundance exist in different regions of the Niyang River, Tibet. Among the 157 taxa observed in 15 sampling sites in the main river and tributary, most were casual species (>100), the relative abundance of the genera Achnanthes and Fragilaria was 67% of the total relative abundance. Achnanthes minutissima was the most important species and dominated the whole river reaches (average relative abundance was 30%); the average diatom densities were 7.4 x 10(5) cell/cm(2) at all sites, and increased slowly from the upper section to downriver. The significant indicator taxa with higher relative abundance were Achnanthes biasolettiana (18.0%) and Fragilaria arcus (18.2%), Fragilaria capucina var. vaucheriae (31.2%), Fragilaria construens var. venter (11.3%) and Cymbella affinis (11.0%) in the upper, tributary and mid-river sections, respectively. Achnanthes minutissima was the most abundant species (56%) in the downriver section. Biodiversity indices showed a gradual decrease from the up-to down-river section, and dominant species were more abundant in the upper and mid-river sections than in the downriver section. A two-way indictor species analysis (TWINSPAN) of diatom composition clearly showed four different groups, namely the upper, mid, lower and tributary sections. Detrended correspondence analysis (DCA) supported the results of TWINSPAN, and the characteristics of site distribution and species composition in the Niyang River supported the spatial structure of diatom assemblages. This study indicates that bio-assessment programs utilizing benthic diatoms could clearly benefit lotic water with regional stratification.
语种: 英语
WOS记录号: WOS:000299039400006
ISSN号: 0254-4059
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/17065
Appears in Collections:藻类生物学及应用研究中心_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Distribution patterns of benthic diatoms during summer in the Niyang River, Tibet, China.pdf(561KB)----开放获取--View Download

Recommended Citation:
Pei Guofeng; Liu Guoxiang.Distribution patterns of benthic diatoms during summer in the Niyang River, Tibet, China,CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(6):1192-1198
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Pei Guofeng]'s Articles
[Liu Guoxiang]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Pei Guofeng]‘s Articles
[Liu Guoxiang]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Distribution patterns of benthic diatoms during summer in the Niyang River, Tibet, China.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院水生生物研究所 - Feedback
Powered by CSpace