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DOI:	10.1371/journal.pone.0123107
论文题名:	Impact of Beaver Dams on Abundance and Distribution of Anadromous Salmonids in Two Lowland Streams in Lithuania
作者:	Tomas Virbickas; Saulius Stakėnas; Andrius Steponėnas
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-4-9
卷:	10, 期:4
语种:	英语
英文关键词:	Beavers ; Freshwater fish ; Trout ; Salmon ; Animal migration ; Rivers ; Ponds ; Species diversity
英文摘要:	European beaver dams impeded movements of anadromous salmonids as it was established by fishing survey, fish tagging and redd counts in two lowland streams in Lithuania. Significant differences in abundancies of other litophilic fish species and evenness of representation by species in the community were detected upstream and downstream of the beaver dams. Sea trout parr marked with RFID tags passed through several successive beaver dams in upstream direction, but no tagged fish were detected above the uppermost dam. Increase in abundances of salmonid parr in the stream between the beaver dams and decrease below the dams were recorded in November, at the time of spawning of Atlantic salmon and sea trout, but no significant changes were detected in the sections upstream of the dams. After construction of several additional beaver dams in the downstream sections of the studied streams, abundance of Atlantic salmon parr downstream of the dams decreased considerably in comparison with that estimated before construction.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0123107&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/20945
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0123107.PDF（313KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Freshwater Biology, Nature Research Centre, Vilnius, Lithuania;Department of Freshwater Biology, Nature Research Centre, Vilnius, Lithuania;Department of Freshwater Biology, Nature Research Centre, Vilnius, Lithuania

Recommended Citation:

Tomas Virbickas,Saulius Stakėnas,Andrius Steponėnas. Impact of Beaver Dams on Abundance and Distribution of Anadromous Salmonids in Two Lowland Streams in Lithuania[J]. PLOS ONE,2015-01-01,10(4)

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