Roza Dam Steelhead

Project Objectives

Introduction

1) Compare a 2006 collection from Roza Dam to the previous      collections from the upper Yakima

SH Population

Roza Dam SH

Results •  Allele frequencies for five replicated Roza Dam collections   are quite similar, and in most cases statistically equivalent. •  The AMOVA test that grouped all replicated Roza Dam   collections together minimized the proportion of variance   partitioned among collections – within groups (0.43%)

Resident Trout

Prosser Dam

Conclusions