What conservation action involves the selective removal of invasive fish above natural barriers?

Careful poisoning or physical removal of brook and rainbow trout.

A primary and intensive step in the ecological engineering required for Paiute Cutthroat Trout restoration is the targeted elimination of established, non-native competitors from specific stream sections designated for native reintroduction. This active management involves careful poisoning or removal efforts focused on brook trout and rainbow trout within defined creek segments. Crucially, these sections must be located above natural barriers. These barriers serve the vital purpose of preventing the re-invasion of the harmful, introduced species back into the cleared areas once the genetically pure Paiute stock has been reintroduced.