The mottled sculpin (Cottus bairdi) lives in shallow, cold water throughout Yellowstone except in the Yellowstone River above Lower Falls and in Yellowstone Lake. This species eats small insects and some fish, and is consumed by trout.
2009. Yellowstone cutthroat trout: Conserving a heritage population in Yellowstone Lake. Mammoth Hot Springs, WY: National Park Service.
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Gresswell, R.E. and J.D. Varley. 1988. Effects of a century of human influence on the cutthroat trout of Yellowstone Lake. In R.E. Gresswell, ed., Status and management of interior stocks of cutthroat trout, 45–52. Vol. Symposium 4. American Fisheries Society.
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Gresswell, R.E. 1995. Yellowstone cutthroat trout. In M. K. Young, ed., Conservation assessment for inland cutthroat trout, 36–54. Fort Collins, CO: US Forest Service, Rocky Mountain Forest and Range Experiment Station.
Heckmann, R. 1994. Cutthroats and parasites: Yellowstone Lake’s complex community of fish and companion organisms. Yellowstone Science 2(3).
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Yellowstone Cutthroat Trout
Yellowstone cutthroat trout are the most widespread native fish in the park.
Westslope Cutthroat Trout
Historically the most abundant and widely distributed subspecies of cutthroat trout throughout the West.
Making a comeback due to park restoration efforts.
Lives in rivers and streams with deep pools, clear and clean water.
Yellowstone’s minnows are small fish living in a variety of habitats and eating a variety of foods.
Suckers are bottom-dwelling fish that use ridges on their jaws to scrape flora and fauna from rocks.
Last updated: November 4, 2019