The Wyoming Game and Fish Department and the Big Horn National Forest have restocked the Little Tongue River with 10,000, eight-to 10-inch Yellowstone Cutthroat Trout, completing a four-year project.
Cutthroat were taken from the Clark's Fork Hatchery near Cody, and the stocking was done on Monday, Aug. 29.
Bill Bradshaw, regional fisheries biologist with the WGFD, explains how that they had to first remove all other trout species from the drainage that had out-competed the Cutthroat that formerly occupied most of the Tongue drainage near Dayton.
A pure cutthroat trout fishery can only be attained if brook trout and rainbow trout were removed, in this case, by using a chemical made from roots of plants grown in Peru called rotenone, according to a media release from the WGFD. The chemical only affects organisms in the stream with gills, warm blooded animals are not affected and insects rebound quickly from rotenone, according to the release.
Bradshaw says cutthroat trout are limited in the Bighorns, so anglers will be allowed one more area where they can fish the species.
The majority of the stocking was done where the most fishing happens along Black Mountain Road. It has created an additional 15 miles of Yellowstone cutthroat trout habitat, according to the release.