Phase II (2007-2011)- Objectives
- Identify Key Tributaries offering the highest potential for Coho Reestablishment
- Evaluate interactions with resident and anadromous fish already residing in tributaries
- Increase the resiliency, and robustness of the Coho population in the Yakima Basin
ACTION
- Monitor Tributary Parr Releases
- Monitor Tributary Adults Releases
- Continue In Basin Brood Stock Development
- New Smolt Acclimation Areas (spread out the risk and increase survival)
2008 Phase II Parr Plants
- 2007 Parr Releases Survival
- Nile Creek (Survival 18%)
- North Fork Little Naches (Survival 14%)
- South Fork Cowiche Creek (Survival 29%)
- Reecer Creek (Survival (31%)
- Wilson Creek (Survival 10%)
- Big Creek survival (13%)
- 2008 Parr Parr Releases Preliminary Survival
- Nile Creek (Preliminary 2009 survival 4%)
- North Fork Little Naches (Preliminary 2009 survival 4%)
- South Fork Cowiche Creek (Preliminary 2009 survival 10%)
- Reecer Creek (Preliminary 2009 survival 14%)
- Wilson Creek (Preliminary 2009 survival 9%)
- Big Creek (Preliminary 2009 survival 5%)
- Ahtanum Creek (Preliminary 2009 survival 7%)
- Little Naches River (Preliminary 2009 survival 5%)
- Interactions monitoring
- Monitoring and Assessment of Adult Coho Escapement and Redd Distribution
2008 Phase II Adult Outplants
- 2007 Adult Survival
- Adult Releases (Releases conducted last week of October into the week of November 07)
- Nile Creek (Redds 4)
- Cowiche Creek (Redds 2)
- Holmes Cottonwood Gallery (Redds 10)
- Tanuem Creek (Redds 75)
- 2008 Adult Survival
- Adult Releases (Releases conducted last week of October into the week of November 07)
- Nile Creek (Upper 10 Redds) (Lower 16 Redds)
- Cowiche Creek (Upper 11 Redds) Lower 30 Redds)
- Wilson Creek (No redds found)
- Tanuem Creek (Redds 50)
- Interactions monitoring
- Monitoring and Assessment of Adult Coho Escapement and Redd Distribution
Local In Basin Brood Development- 149 Females Spawned 100% Wild
- 120 Hatchery Females
- 122 Wild Males crossed with all females
- Estimated egg take of ~800,000
- Estimated 550,000 In Basin Coho for 2009 release.