Introduction
Conclusions
Prosser Dam
Roza Dam SH
SH Population
Resident Trout
3) Identify if resident trout samples collected above Roza Dam
    are different genetically from the steelhead collections from
    Roza Dam 
Roza Dam Steelhead
Project Objectives
Results
Resident   Satus     Toppenish    Ahtanum    Naches    Roza     Skamania
1      -        -             -           0.83       0.17             -
2      -        -             -           0.90       0.10             -
3      -        -             -              -         1.00             -
4      -        -             -           0.36       0.64             -
5      -        -             -              -         1.00             -
6      -        -             -              -         1.00             -
1) For each resident, the probability of its genotype being derived from each genetic baseline population is shown.  Despite the genetic baseline including all major divisions of steelhead observed, resident trout samples were only assigned to the Naches River and Roza Dam populations.
2) These results suggest that the resident trout samples collected in the Teanaway River in 2006 are indistinguishable from the Naches River and Roza Dam steelhead, which is consistent with a high level of interbreeding between residents and steelhead.