中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 水生生物多样性与资源保护研究中心  > 期刊论文
题名: Influences of low-head dams on the fish assemblages in the headwater streams of the Qingyi watershed, China
作者: Yan, Yunzhi1; Wang, Hong1; Zhu, Ren1; Chu, Ling1; Chen, Yifeng2
通讯作者: Yan, YZ (reprint author), Anhui Normal Univ, Coll Life Sci, Prov Key Lab Biot Environm & Ecol Safety Anhui, Wuhu 241000, Peoples R China.
关键词: Low-head dams ; Local habitat ; Stream fish assemblage ; Qingyi watershed
刊名: ENVIRONMENTAL BIOLOGY OF FISHES
发表日期: 2013-04-01
DOI: 10.1007/s10641-012-0035-0
卷: 96, 期:4, 页:495-506
收录类别: SCI
文章类型: Article
部门归属: [Yan, Yunzhi ; Wang, Hong ; Zhu, Ren ; Chu, Ling] Anhui Normal Univ, Coll Life Sci, Prov Key Lab Biot Environm & Ecol Safety Anhui, Wuhu 241000, Peoples R China ; [Chen, Yifeng] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Basic Research Program of China [2009CB119200]; Natural Science Foundation of China [31172120]; Anhui Provincial Natural Science Foundation [090413080]
类目[WOS]: Ecology ; Marine & Freshwater Biology
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology
摘要: The influences of low-head dams on the fish assemblages were examined in this study, using fish data collected in six treatment and five reference sites at three low-head dams in the headwater streams of the Qingyi watershed, China. Comparing with those in the reference sites, local habitat variables were significantly altered by low-head dams in the treatment sites, involving wider channel (only in the impoundment area), deeper water and slower flow. Fish species richness varied significantly across seasons, not across site categories, suggesting that these low-head dams did not alter species richness. However, significant decreases in fish abundance and density were observed in the impoundment areas immediately upstream of dams, but not in the plunge areas downstream. Fish assemblage structures kept relative stability across seasons, and their significant difference between-site was only observed between the impoundment areas and the sites far from dams upstream. This variation in assemblage structures was due to the differing relative abundance of some co-occurring species; more lentic but less lotic fish was observed in the impoundment areas. The spatial and temporal patterns of fish assemblages were correlated with local habitat in this study area. Wetted width had negative correlation with fish species richness, abundance and density, respectively. Water temperature also positively affected species richness. In addition, wetted width, water depth, current velocity and substrate were the important habitat variables influencing assemblage structures. Our results suggested that, by modifying local habitat characteristics, low-head dams altered fish abundance and density in the impoundment areas immediately upstream of dam, not in the plunge areas immediately downstream, and thereby influenced fish assemblage structures in these stream segments.
英文摘要: The influences of low-head dams on the fish assemblages were examined in this study, using fish data collected in six treatment and five reference sites at three low-head dams in the headwater streams of the Qingyi watershed, China. Comparing with those in the reference sites, local habitat variables were significantly altered by low-head dams in the treatment sites, involving wider channel (only in the impoundment area), deeper water and slower flow. Fish species richness varied significantly across seasons, not across site categories, suggesting that these low-head dams did not alter species richness. However, significant decreases in fish abundance and density were observed in the impoundment areas immediately upstream of dams, but not in the plunge areas downstream. Fish assemblage structures kept relative stability across seasons, and their significant difference between-site was only observed between the impoundment areas and the sites far from dams upstream. This variation in assemblage structures was due to the differing relative abundance of some co-occurring species; more lentic but less lotic fish was observed in the impoundment areas. The spatial and temporal patterns of fish assemblages were correlated with local habitat in this study area. Wetted width had negative correlation with fish species richness, abundance and density, respectively. Water temperature also positively affected species richness. In addition, wetted width, water depth, current velocity and substrate were the important habitat variables influencing assemblage structures. Our results suggested that, by modifying local habitat characteristics, low-head dams altered fish abundance and density in the impoundment areas immediately upstream of dam, not in the plunge areas immediately downstream, and thereby influenced fish assemblage structures in these stream segments.
关键词[WOS]: RIVER-BASIN ; LOWHEAD DAMS ; HABITAT ; USA ; PATTERNS ; MACROINVERTEBRATES ; BIODIVERSITY ; COMMUNITIES ; PERSPECTIVE ; INTEGRITY
语种: 英语
WOS记录号: WOS:000315595200007
ISSN号: 0378-1909
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19262
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Influences of low-head dams on the fish assemblages in the headwater streams of the Qingyi watershed, China.pdf(273KB)----开放获取View Download

作者单位: 1.Anhui Normal Univ, Coll Life Sci, Prov Key Lab Biot Environm & Ecol Safety Anhui, Wuhu 241000, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China

Recommended Citation:
Yan, YZ; Wang, H; Zhu, R; Chu, L; Chen, YF.Influences of low-head dams on the fish assemblages in the headwater streams of the Qingyi watershed, China,ENVIRONMENTAL BIOLOGY OF FISHES,2013,96(4):495-506
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Yan, Yunzhi]'s Articles
[Wang, Hong]'s Articles
[Zhu, Ren]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Yan, Yunzhi]‘s Articles
[Wang, Hong]‘s Articles
[Zhu, Ren]‘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: Influences of low-head dams on the fish assemblages in the headwater streams of the Qingyi watershed, China.pdf
格式: Adobe PDF
此文件暂不支持浏览
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 © 2007-2017  中国科学院水生生物研究所 - Feedback
Powered by CSpace