Endangered Species Act profile

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ENDANGERED SPECIES ACT PROFILE

PROTECTION STATUS: Not listed; candidate species 1991, removed from candidate list 2007

PETITIONED: 1991

RANGE: The Big Hole River of southwest Montana

THREATS: Degradation of water quality and quantity, competition with introduced species, climate change, habitat degradation, river dewatering, and exploitation by anglers

POPULATION TREND: The grayling population is declining.

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ENDANGERED SPECIES ACT PROFILE