Weister Creek has a reputation as an excellent fishery for brown (Salmo trutta), rainbow (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis).
Weister Creek is a Class III trout stream for its entire length.

Recently a movement called "Save Taryn's Beaver" was launched to save a family of beavers on the upper creek.
The beaver is a keystone species, increasing biodiversity in its territory through creation of beaver ponds and wetlands.
Not only are riparian habitats enlarged as the circumference of a beaver pond is much greater than the circumference of the two banks of a stream, but aquatic plants colonize newly available watery habitat.
Insect, invertebrate, fish, mammal, and bird diversity are also expanded.
Beavers benefit bird diversity in numerous ways.
Trumpeter swans (Cygnus buccinator) and Canada geese (Branta canadensis) often depend on beaver lodges as nesting sites.
 As trees are drowned by rising beaver impoundments they become ideal nesting sites for obligate cavity nesters such as wood ducks (Aix sponsa), goldeneyes (Bucephala spp.),
mergansers (Mergus spp.),
and owls (Titonidae, Strigidae).
In addition, beaver ponds have been shown to increase the number of trout, their size, or both, in a study of brook trout (Salvelinus fontinalis), rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta).
These findings are consistent with a study of small streams in Sweden, that found that brown trout were larger in beaver ponds compared with those in riffle sections, and that beaver ponds provide habitat for larger trout in small streams during periods of drought.
The importance of winter habitat to salmonids afforded by beaver ponds may be especially important (and underappreciated) in streams without deep pools or where ice cover makes contact with the bottom of shallow streams.
Cutthroat trout (Oncorhynchus clarki) and bull trout (Salvelinus confluentus) were noted to overwinter in Montana beaver ponds, brook trout congregated in winter in New Brunswick and Wyoming beaver ponds, and coho salmon in Oregon beaver ponds.

In spite of the benefits of beaver to trout and bird abundance and diversity, the Wisconsin Department of Natural Resources continues to recommend removal of trees and brush from the banks of several Kickapoo river watershed streams to reduce beaver colonization.
The town of Clinton is holding hearings to decide the fate of the Weister Creek beavers.
At the first hearing, May 12, 70 citizens showed up and it was standing room only in a debate between those who wanted to protect the beavers versus those who feared further road damage or loss of pastureland to wetland.
At a special follow-up town board meeting on June 1 a compromise was reached to adopt a proposal by Steve Solberg, an environmental engineer of La Crosse and Ben Hansen of Viroqua, for a flow device to permanently lower the beaver pond by 1.5 feet (0.46 m) so that it would not threaten Dell Road and to open up pastureland that had been flooded by the beavers.
The lowered pond level should encourage the beaver to relocate downstream.
It is hoped that funding will be provided by the Ho Chunk Nation.
Weister Creek has a reputation as an excellent fishery for brown (Salmo trutta), rainbow (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis). Weister Creek is a Class III trout stream for its entire length.
Recently a movement called "Save Taryn's Beaver" was launched to save a family of beavers on the upper creek. The beaver is a keystone species, increasing biodiversity in its territory through creation of beaver ponds and wetlands. Not only are riparian habitats enlarged as the circumference of a beaver pond is much greater than the circumference of the two banks of a stream, but aquatic plants colonize newly available watery habitat. Insect, invertebrate, fish, mammal, and bird diversity are also expanded. Beavers benefit bird diversity in numerous ways. Trumpeter swans (Cygnus buccinator) and Canada geese (Branta canadensis) often depend on beaver lodges as nesting sites.  As trees are drowned by rising beaver impoundments they become ideal nesting sites for obligate cavity nesters such as wood ducks (Aix sponsa), goldeneyes (Bucephala spp.), mergansers (Mergus spp.), and owls (Titonidae, Strigidae). In addition, beaver ponds have been shown to increase the number of trout, their size, or both, in a study of brook trout (Salvelinus fontinalis), rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta). These findings are consistent with a study of small streams in Sweden, that found that brown trout were larger in beaver ponds compared with those in riffle sections, and that beaver ponds provide habitat for larger trout in small streams during periods of drought. The importance of winter habitat to salmonids afforded by beaver ponds may be especially important (and underappreciated) in streams without deep pools or where ice cover makes contact with the bottom of shallow streams. Cutthroat trout (Oncorhynchus clarki) and bull trout (Salvelinus confluentus) were noted to overwinter in Montana beaver ponds, brook trout congregated in winter in New Brunswick and Wyoming beaver ponds, and coho salmon in Oregon beaver ponds.
In spite of the benefits of beaver to trout and bird abundance and diversity, the Wisconsin Department of Natural Resources continues to recommend removal of trees and brush from the banks of several Kickapoo river watershed streams to reduce beaver colonization. The town of Clinton is holding hearings to decide the fate of the Weister Creek beavers. At the first hearing, May 12, 70 citizens showed up and it was standing room only in a debate between those who wanted to protect the beavers versus those who feared further road damage or loss of pastureland to wetland. At a special follow-up town board meeting on June 1 a compromise was reached to adopt a proposal by Steve Solberg, an environmental engineer of La Crosse and Ben Hansen of Viroqua, for a flow device to permanently lower the beaver pond by 1.5 feet (0.46 m) so that it would not threaten Dell Road and to open up pastureland that had been flooded by the beavers. The lowered pond level should encourage the beaver to relocate downstream. It is hoped that funding will be provided by the Ho Chunk Nation.
Weister Creek