Status of the Western Silvery Minnow, Hybognathus argyritis, in Canada

Abstract

The western Silvery Minnow (Hybognathus argyritis) is known in Canada only from Alberta, where it was first collected in 1961. It is no doubt native to Alberta fauna and may have been previously overlooked or misidentified as the Brassy Minnow (Hybognathus hankinsoni). Intolerant of siltation and habitat degradation, this species should be considered vulnerable in Canada given its restricted distribution and rarity.