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The bull trout is Montana’s largest native trout.

The bull trout is Montana’s largest native trout. It is closely related to the Coastal Dolly Varden; they were once thought to be the same species.
An angler caught this Flathead Lake bull trout in 1989. It weighed nearly 22 pounds. The recognized world record bull trout was caught in Idaho's Lake Pend Oreille. It tipped the scales at more than 32 pounds.
Bull Trout
The bull trout is a predator, and as an adult eats almost exclusively other fish. It was once called the “Cannibal of Montana’s Streams” because of its predatory habits. The bull trout is now a state “species of special concern” and classified as a “threatened” species under the Endangered Species Act. Threats to the bull trout include loss of habitat and habitat damage, competition with introduced species, and illegal taking (poaching), either intentionally (poaching) or unintentionally (through misidentification).
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