Initial Conclusions

• Yakima River has potential to support a natural producing population

• • Large capacity but limited productivity (survival)

• Adult migration timing

• • Significantly influence abundance

• Spawn timing

• • Initiation of spawning potentially limited by temperature regimes
  • Timing can significantly influence stream reach productivity

• Emergence timing & Juvenile out-migration timing

• • Temporal characteristics of habitat seem to favor early emergence and out-migration

• Differences in viable life history patterns across stream reaches will promote and maintain life history diversity of entire population

• M&E:

• • Monitoring spawn timing: Shifts and or changes in spawn timing may be a strong indicator that local adaptation is occurring