Table of contents

Slide 1

Acknowledgements

Objectives:

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Yakima River Spring Chinook Spawning Areas Genetically Sampled - Allozymes

Yakima River Spring Chinook Spawning Areas Genetically Sampled - DNA

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Reproductively Isolated Populations Identified

Natural Populations

Comparisons of Yakima River Spring Chinook Populations 1988-2004

Comparisons of Little Naches and upper Yakima River 2004

Age Composition

Mean Age Composition: 1988-2004 (YN Carcass recoveries)

Sex Ratios

Sex Ratio by Population

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Size-at-Age

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Run Size Correlations of Age 4 Returns

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Egg and Fry Size 2004

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Spawn Timing

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Selection Pressures

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Yakima River Basin Elevation and Distance

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Conclusions: Wild Population Genetic and Life-History Traits

Conclusions: Wild Population Genetic and Life-History Traits – cont’d

Conclusions: Upper Yakima vs Little Naches Gametic Traits

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