Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Temperate; 53°N - 43°N
North America: Columbia River drainage in British Columbia (Canada), Idaho, Washington and Oregon (USA).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm TL male/unsexed; (Ref. 86798)
Inhabits rubble riffles and runs of large rivers (Ref. 86798).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Tools
Special reports
Download XML
Internet sources