Lepidomeda albivallis
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/White_River_spinedace
Overview
The White River spinedace is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, Eurasian minnows and related species. This critically endangered fish is found in Nevada, where it is restricted to the White River in the southeastern part of the state.
The White River spinedace faces severe threats from habitat modification and water diversions that have dramatically altered its native spring systems in eastern Nevada. Introduced non-native fish species compete directly with this endemic minnow and have contributed to population declines across its limited range. Groundwater pumping and agricultural water use have reduced spring flows, while habitat degradation from livestock grazing has further compromised the quality of remaining aquatic environments.
Habitat
The White River spinedace is endemic to spring-fed streams and thermal springs in the White River drainage system of eastern Nevada. This species requires clear, flowing water with rocky or gravelly substrates and is adapted to the relatively stable temperatures and water chemistry of natural spring environments.
