Yellowstone Cutthroat Trout

The Yellowstone Cutthroat Trout (Oncorhynchus clarkii bouvieri), Montana's state fish and a prized game fish, has a historical range that is a fraction of what it is today. 

A freshwater fish related to the cutthroat trout and in the salmon family, the Yellowstone cutthroat populations have been decimated by livestock grazing, mining, logging and overfishing.  Competition with non-native fish and interbreeding with introduced rainbow trout have also negatively affected its numbers.  

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