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.

Photo © Ernest Keeley