We recommend you include the following information in your citation. Look below the item for additional data you may want to include.
Contact Owning Institution
All fields are required.
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.
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.