IHB OpenIR  > 水生生物多样性与资源保护研究中心  > 期刊论文
Influence of a large dam on the longitudinal patterns of fish assemblages in Qingyi Stream
Sui Xiaoyun1; Lu Zhi1; Yan Yunzhi2; Chen Yifeng3; Jia Yintao3
2014
Source PublicationZoological Research
ISSN2095-8137
Volume35Issue:5Pages:362
AbstractUsing seasonally collected data (2009–2010) from 15 sampling sites that represent first- to fifth-order streams within the Qingyi watershed, we examined the spatio-temporal patterns of fish assemblages along two longitudinal gradients to explore the effects of a large dam on fish assemblages at the watershed scale. No significant variation was observed in either species richness or assemblage structure across seasons. Species richness significantly varied according to stream order and gradient. Dam construction appeared to decrease species richness upstream substantially, while a significant decrease between gradients only occurred within fourth-order streams. Along the gradient without the large dam, fish assemblage structures presented distinct separation between two neighboring stream orders, with the exception of fourth-order versus fifth-order streams. However, the gradient disrupted by a large dam displayed the opposite pattern in the spatial variation of fish assemblages related with stream orders. Significant between-gradient differences in fish assemblage structures were only observed within fourth-order streams. Species distributions were determined by local habitat environmental factors, including elevation, substrate, water depth, current discharge, wetted width, and conductivity. Our results suggested that dam construction might alter the longitudinal pattern in fish species richness and assemblage structure in Qingyi Stream, despite the localized nature of the ecological effect of dams.
KeywordFish assemblage Species richness Spatiotemporal pattern Longitudinal gradient Dam building
Language英语
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/40655
Collection水生生物多样性与资源保护研究中心_期刊论文
Affiliation1.北京大学
2.安徽师范大学
3.中国科学院水生生物研究所
Recommended Citation
GB/T 7714
Sui Xiaoyun,Lu Zhi,Yan Yunzhi,et al. Influence of a large dam on the longitudinal patterns of fish assemblages in Qingyi Stream[J]. Zoological Research,2014,35(5):362.
APA Sui Xiaoyun,Lu Zhi,Yan Yunzhi,Chen Yifeng,&Jia Yintao.(2014).Influence of a large dam on the longitudinal patterns of fish assemblages in Qingyi Stream.Zoological Research,35(5),362.
MLA Sui Xiaoyun,et al."Influence of a large dam on the longitudinal patterns of fish assemblages in Qingyi Stream".Zoological Research 35.5(2014):362.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sui Xiaoyun]'s Articles
[Lu Zhi]'s Articles
[Yan Yunzhi]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sui Xiaoyun]'s Articles
[Lu Zhi]'s Articles
[Yan Yunzhi]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sui Xiaoyun]'s Articles
[Lu Zhi]'s Articles
[Yan Yunzhi]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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