| Conclusions |
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| • | Yakima Basin
steelhead genetically differentiated by watershed |
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| • | Although Naches River and
upper Yakima similar |
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| • | Evidence
suggests limited hatchery introgression into natural |
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| populations |
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| • | Allele frequencies for
replicated Roza Dam collections are |
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| temporally stable |
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| • | Genetic dataset
for five replicated collections from Roza Dam |
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| should be
combined to form a single genetic baseline sample |
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| • | Roza Dam data
are consistent with the presence of a single |
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| steelhead population above
Roza Dam |
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| Introduction |
| SH
Population |
| Roza
Dam SH |
| Resident
Trout |
| Prosser
Dam |
| Conclusions |