Native trout define the West — there are at least 59 distinct species, subspecies, and populations of native western trout. Accordingly, native trout are designated as the state fish in many western ...

The Center first petitioned to list the Rio Grande cutthroat trout under the Endangered Species Act in 1998. The Service responded that the trout was unlikely to become endangered and decided instead ...

The FWS reported that the primary threats affecting the Rio Grande cutthroat trout are hybridization, competition and ...

The declining population of cutthroat trout has had a ripple effect. Because there are fewer of the fish, the size of zooplankton has increased, which has likely caused a rise in the water’s surface ...

Restoring this natural connectivity promotes a healthier aquatic ecosystem, benefitting cutthroat trout and other native fish species populations that depend on free-flowing river systems.” ...