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The Montana Arctic grayling (Thymallus arcticus montanus) is a North American freshwater fish in the salmon family Salmonidae. The Montana Arctic grayling, native to the upper Missouri River basin in Montana and Wyoming , is a disjunct population or subspecies of the more widespread Arctic grayling ( Thymallus arcticus ). [ 5 ]
The two populations are commonly called Montana Arctic grayling. [4] The Big Hole River Watershed Committee (BHWC) was formed in 1995 by several Big Hole ranchers and some factions of the conservation community who opposed an ESA listing for fluvial Arctic grayling.
The Arctic grayling (Thymallus arcticus) is a species of freshwater fish in the salmon family Salmonidae. T. arcticus is widespread throughout the Arctic and Pacific drainages in Canada, Alaska, and Siberia, as well as the upper Missouri River drainage in Montana.
In 1921, U.S. Fish Commission personnel stocked Grebe Lake, at that time fishless, with the Montana strain Thymallus arcticus montanus of a lacustrine form of Arctic Grayling. The original stocks came from Georgetown Lake near Anaconda, Montana. The fluvial form of Arctic Grayling was native to the Madison and Gibbon Rivers below Gibbon Falls ...
Located ten miles (16 km) north of Lincoln, Montana, Heart Lake sits in a cirque five miles west of the Continental Divide. It is home to Arctic grayling and westslope cutthroat trout. [2] The lake is approximately 5 miles (8.0 km) from the Indian Meadows Trailhead. [3] A trail on the east side of the lake goes to Pearl Lake and the top of the ...
The Arctic Grayling (Thymallus arcticus montanus) was originally distributed throughout the Madison River drainage below Firehole Falls and Gibbon Falls and the Gallatin River drainage. Introductions of brown and rainbow trout into the Madison River drainage caused the extirpation of the grayling from these rivers.
The forest is also home to grizzly bear, cougar, Canadian lynx, bald eagle, bull trout, Arctic grayling, and gray wolf, the latter being a migrant from northern Montana and the Yellowstone wolf reintroduction program in Wyoming. Elk, mule deer, moose, bighorn sheep, pronghorn, coyote, and black bear are more commonly seen.
Lakes in the West Pioneers contain perhaps the last pure strain population of Arctic grayling south of Canada. [3] Old growth whitebark pine and lodgepole pine is present in the West Pioneers; a stand of lodgepole pine over 500 years old is reputed to be the oldest known anywhere. [3] Wolke describes the West Pioneers region as an ecological ...