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Mountain whitefish are demersal feeders, [7] stirring up the substrate with pectoral and tail fins to expose insect larvae and other invertebrates, including snails, crayfish, and amphipods. Their main feeding time is in the evening, but they will also take drifting prey during the day.
The mountain whitefish (Prosopium williamsoni) is native to the park in the Madison River drainage, the Gallatin River drainage, the Yellowstone River below Knowles Falls, the Middle Creek tributary of the Shoshone River and the Snake River drainage. Attempts to introduce mountain whitefish into the Yellowstone River below Yellowstone Lake were ...
The current population of lions in Yellowstone is estimated to be 18-24 animals and is thought to be increasing. Mountain lions live an average lifespan of about 12 years in the wild. Mountain lions were significantly reduced by predator control measures during the early 20th century.
Westslope cutthroat, kokanee salmon and mountain whitefish live in the lake, and they could provide a strong food base for the threatened fish. It also lacks species that pose threats to bull trout.
Coregonus megalops Widegren, 1863 (lacustrine fluvial whitefish) Coregonus migratorius (Georgi, 1775) (omul) Coregonus muksun (Pallas, 1814) (muksun) Coregonus nasus (Pallas, 1776) (broad whitefish) Coregonus nelsonii. Coregonus nelsonii T. H. Bean, 1884 (Alaska whitefish) † Coregonus nigripinnis (Milner, 1874) (blackfin cisco) Coregonus ...
The lake whitefish (Coregonus clupeaformis) is a species of freshwater whitefish from North America. Lake whitefish are found throughout much of Canada and parts of the northern United States, including all of the Great Lakes. The lake whitefish is sometimes referred to as a "humpback" fish due to the small size of the head in relation to the ...
Bear Lake whitefish: Bear Lake on the Utah-Idaho border Prosopium coulterii (C. H. Eigenmann & R. S. Eigenmann, 1892) Pygmy whitefish: mountain streams and lakes in western North America, it also has isolated populations in Lake Superior and in Ekityki Lake, Chukchi Peninsula. Prosopium cylindraceum (Pennant, 1784) Round whitefish
Native mountain whitefish are also prevalent in the river. In the 1980s, the state of Montana began stopping general stocking of all Montana rivers. The last hatchery fish were stocked in the Big Hole in 1990. [22] Dozens of guides, outfitters and fishing lodges offer guided fishing on the Big Hole and its tributaries.