Yellowstone cutthroat trout

The Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) is a subspecies of the cutthroat trout (Oncorhynchus clarkii). It is a freshwater fish in the salmon family (family Salmonidae). It lives in only to a few U.S. states. Its original range was upstream of Shoshone Falls on the Snake River and tributaries in Wyoming, across the Continental Divide in Yellowstone Lake and in the Yellowstone River and its tributaries downstream to the Tongue River in Montana.^[1] The species is also found in Idaho, Utah and Nevada.^[2]

Description

The Yellowstone cutthroat trout is often golden brown with relatively big spots clustered toward its tail. Its body is compressed like most trout.

Population threats

Their population has decreased a little due to overfishing and mining. The most serious threats are interbreeding with introduced rainbow trout to make cutbows in the Greater Yellowstone ecosystem.

Introduction to the Yellowstone River

Yellowstone cutthroat trout were never officially introduced into the Yellowstone River and their presence there is probably the result of accidental or illegal introductions.

From Birds and nature, 1904

References

↑ "Montana Field Guide-Yellowstone Cutthroat Trout". Montana Department of Fish, Wildlife and Parks. Retrieved 2013-11-16.
↑ Gresswell, Robert E. (June 30, 2009). "Yellowstone Cutthroat Trout (Oncorhynchus clarkii bouvieri): A Technical Conservation Assessment" (PDF). U.S. Geological Survey. Retrieved 2011-11-04.

Other websites

Wyoming Fish & Game Commission website Archived 2007-03-02 at the Wayback Machine

[1] "Montana Field Guide-Yellowstone Cutthroat Trout". Montana Department of Fish, Wildlife and Parks. Retrieved 2013-11-16.

[gresswell-2] Gresswell, Robert E. (June 30, 2009). "Yellowstone Cutthroat Trout (Oncorhynchus clarkii bouvieri): A Technical Conservation Assessment" (PDF). U.S. Geological Survey. Retrieved 2011-11-04.

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