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2004 Coho Juvenile Migration and Radio Tracking Distribution Presented By: Todd Newsome Fisheries Biologist for the Yakama Nation

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Acknowledgements

Background

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2004, Juvenile Survival Summary

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50% Passage, Natural vs. Hatchery 2nd Step in Isolating and reducing possible mortality (Timing)

Adult Returns

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Redd Distribution

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2004 Coho Highlights

Redd Caps

Radio Tracking Objectives Radio tag approximately 90 randomly collected adult Coho at Prosser Dam. Determine spawning distribution of returning Coho to the Yakima River. Test trapping and radio tagging adult Coho at Cowiche and Roza Dams. From radio tracking, use redd distribution to locate areas of wild rearing, perform summer snorkeling survey to assess abundance and distribution.

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The End