Habitat at Work
Sufficient suitable spawning habitat that can be accessed by salmonids is fundamental to maintaining the Brule’s productive self-sustaining fishery. The importance of years of watershed protection by the State of Wisconsin, Douglas County, and many private landowners cannot be overstated. Nonetheless, early logging, road development, and the actions of rebounding beaver populations have had a cumulative negative effect on parts of the Brule and its tributaries. In-stream habitat work by the Wisconsin Department of Natural Resources with the help of Club members, along with donations by local businesses, the Wisconsin National Guard, and the work of Animal and Plant Health Inspection Service beaver trappers (click on APHIS to learn more), has been important to restoring many of the affected stream reaches to a more productive state (to learn more, click on Little Streams Feed a Big Fishery). We hope you enjoy the following videos of fish doing “their thing” that were produced by Club member Dennis Pratt! All video was collected on the Bois Brule River, a Wisconsin stream flowing into Lake Superior.
Spawning Brook Trout
This video shows a female brook trout preparing her redd (spawning bed) by first testing the depth of the potential egg pocket by probing with her anal fin (bottom fin in front of the tail) and the width of the egg pocket by rocking her anal fin side to side. Toward the end of clip she tries to improve the egg pocket by swiftly turning on her side and sweeping. She will not lay any eggs until she is satisfied and can be seen doing this for quite some time. Also note that a dominant male, her chosen mate, is constantly protecting her and her redd from other male intrusions, chasing, displaying, pushing, and sometimes biting them.
Click on spawning brook trout to see the video.
Schooling Brook Trout
The brook trout school you see in the first half of this video are very light colored as they have camouflaged themselves to match the color of the sand bottom they are lying over. Brook trout can be found in congregations for various reasons including taking advantage of food flushing from upstream after rainfall events (as in the two schools shown), seeking cold water refuge during warm summer periods, seeking refuge near groundwater sources during the cold winter months, or when they congregate in spawning areas. Brook trout in the video range from 6 to 14 inches.
Click on schooling brook trout to see the video.
Spawning Brown Trout
This video shows a pair of lake-run brown trout just after they completed their last egg laying event. You will see the male at the beginning trying to urge the female to lay eggs but she ignores him and just continues the process of excavating gravel to cover her eggs.
Click on spawning brown trout to see the video.
Brook Trout Spawning Habitat Improvement – Two Decades Later
More than 20 years ago, the Brule River Sportsmen’s Club and the Wisconsin Department of Natural Resources teamed up to restore some brook trout spawning habitat in the head water of the Brule River. Spawning habitat at this location was severely degraded by beaver activity and stream-side logging at the turn of the 20th century. In 1994, a test project was designed and built to see if we could help the brook trout population by confining the channel and adding washed uncrushed spawning size gravel (1/4 to 1/2 inch). The channel was confined by building banks of hand carried trap rock. When completed, gravel was also hand carried to the site from the nearby roadside. That fall, many brook trout successfully reproduced on the site at the end of October. It was so successful that the club came back in 1996 and built 2 more spawning sites a short distance downstream of the initial site. Brook trout have successfully reproduced on the project habitat improvements each and every year since. This video documents the project’s history and success with all video collected at the habitat improvement site. This work should continue producing similar results for many decades to come as long as problem beaver continue to be removed.
Click on Hwy P habitat work to see the video.
Video displays steelhead (lake-run rainbow trout) spawning behavior on the Bois Brule River, Wisconsin’s most important coldwater tributary flowing into Lake Superior. All the underwater video was taken on the site of a Wisconsin Department of Natural Resources spawning habitat improvement project built in 1998. Since construction, this spawning area has been used by brown trout and coho salmon each fall and by steelhead each spring. The spawning habitat improvement project consisted of adding rock channel constrictors, large woody cover logs and washed, sized spawning gravels. Click on Habitat Project Table to see project maps, descriptions, and photos of many of the joint Brule River Sportsmen’s Club – Wisconsin DNR Fisheries.
Click on Spawning Steelhead to see the video.
To help support the Club’s habitat restoration and maintenance work, please consider joining the Club if you are not already a member!
Click on Membership form if you’d like to join. Thanks!