UC Riverside, Library, Water Resources Collections and Archives > Clearinghouse for Dam Removal Information (CDRI) > Impact of Beaver Dam Removal on Brook Trout Populations and the Sport Fishery in a Northeastern Wisconsin Stream

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Title
Impact of Beaver Dam Removal on Brook Trout Populations and the Sport Fishery in a Northeastern Wisconsin Stream
Alternative Title
Research Management Findings, Bureau of Research - Wisconsin Department of Natural Resources, August, 1991, issue 31
Creator
Ed L. Avery
Wisconsin Department of Natural Resources
Date Created and/or Issued
8/1/91
Contributing Institution
UC Riverside, Library, Water Resources Collections and Archives
Collection
Clearinghouse for Dam Removal Information (CDRI)
Rights Information
Copyrighted
Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user.
Description
Scope/Content: Abstract: Beaver populations in northern Wisconsin burgeoned in the late 1970s and early 1980s, creating unprecedented densities of >1 beaver dam/mile on many area trout streams. Beaver dams constructed on low- to moderate-gradient streams typical of those in this region cause changes in stream habitat that often adversely affect resident trout populations (Patterson 1950, 1951). In 1982, I initiated this study to test the hypothesis that removal of beaver dams on a brook trout (Salvelinus fontinalis) stream and subsequent maintenance of free-flowing conditions would result in: (1) improved living conditions for trout, especially water temperature, (2) an increased trout population, and (3) a higher quality trout fishery. Baseline data collected the year prior to initial dam removal were compared to data from 3 follow-up years. This Findings article examines 2 of the 3 facets of the study hypothesis - the impacts of removing beaver dams on brook trout populations and on the sport fishery. The impact on summer water temperatures was reported in Findings No. 30; the entire study will be analyzed in an upcoming final report.
Scope/Content: Date removed: 1983.
Type
text
Form/Genre
digital copy
Identifier
ark:/86086/n2513xvc
65
Language
English
eng
Subject
Ecology and river restoration
Dams
Dam retirement
Place
Pemebonwon River and its tributaries, WI
CA

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