Draft Recovery Plan for the Threatened and Rare Native Fishes of the Warner Basinand Alkali Subbasin: Warner sucker (Threatened) 'Catostomus warnerensis', Hutton tui chub (Threatened) 'gila bicolor ssp.', Fkoskett speckled dace (Threatened) 'Rhinichthys o

摘要

This recovery plan provides information to guide recovery of the threatenednative fishes of the Warner Basin and the Alkali Subbasin in southeastern Oregon. This plan focuses on three species listed as threatened in 1985, the Warner sucker (Catostomus warnerensis), the Foskett speckled dace (Rhinichthys osculus spp.), and the Hutton tui chub (Gila bicolor ssp.) These three fishes are also listed as threatened by the state of Oregon (Oregon Natural Heritage Program 1995). The Warner sucker and the Foskett speckled dace occur in water bodies within the Warner Basin; the Hutton tui chub occurs in the adjacent Alkali Subbasin of the Chewaucan Basin. Two other rare native fishes also occur in the Warner Basin and are included in the recovery plan since they will benefit from recovery actions undertaken for the listed fishes; these are the Cowhead Lake tui chub (Gila bicolor vaccaceps) and the Warner Valley redband trout (Oncorhynchus mykiss ssp.).