Five populations (baseline)

• Five populations (baseline)

• • Upper Yakima River – Spring
  • Naches River – Spring
  • American River – Spring
  • Lower Yakima river – Fall
  • Marion Drain – Fall

• DNA samples from outmigrating smolts collected at Chandler Trap

• Data from eight brood years (2000-2008)

• Standardized (GAPS) markers and proportional sampling since 2004 (5 years)