Yellowstone River Coordinator's Office
Mountain-Prairie Region
Species of Concern

Native Fish & Wildlife Conservation- Conserving imperiled fish and aquatic species and wildlife species

Common Name Scientific Name Status*
Pallid sturgeon Scaphirhynchus albus G1, S1, E
Blue Sucker Cycleptus elongatus G4, S2, S3
Paddle Fish Polyodon spathula G4, S1, S2
Sturgeon Chub Macrohybopsis gelida G2, S2
Yellowstone Cutthroat Oncorhynchus clarki bouvieri G4T2, S2

Status definitions*

G1 S1 Critically Imperiled because of extreme rarity or because of some factor making it especially vulnerable to extinction.

G2 S2  Imperiled because of rarity or because of other factors demonstrably making it very vulnerable to extinction throughout its range.

G2 S3  Either very rare and local throughout its range, or found locally in a restricted range, or vulnerable to extinction throughout its range.

G4 S4 Apparently secure, though it may be quite rare in parts of its range, especially at the periphery.

E  Listed federally endangered.

Adapted from Montana Natural heritage Program data.

Last updated: July 15, 2008