Yakima Steelhead Population Classification
Federal
Evolutionary Significant Unit (ESU)
Inland Steelhead – Middle Columbia River
Washington State
Genetic Diversity Units (GDU)
Yakima River
Salmonid Stock Inventory (SaSI)
Satus Creek
Toppenish Creek
Naches River
upper Yakima (above Roza Dam)
Introduction
SH Populations
Roza Dam SH
Resident Trout
Prosser Dam
Conclusions