Columbia River Basin
In order to facilitate an ecosystem-level review of such a large landscape as the US portion of the Columbia River Basin, the Hatchery Scientific Review Group (HSRG) divided the Basin into 14 regions, based in large part on regions defined by the Northwest Power and Conservation Council in 2000. The 14 regions were then grouped into 4 areas: 1) Lower Columbia, 2) Mid Columbia, 3) Upper Columbia, and 4) Snake River.
The HSRG's scientific review was conducted through a series of regional and cumulative workshops. The review began with populations and hatcheries located in the Lower Columbia River area in July 2006 and progressed upstream through the Snake River Basin in August 2008.
Area |
Region |
| Lower Columbia | Cowlitz/Washougal |
| Kalama and Lewis | |
| Columbia Estuary, Washington | |
| Lower Columbia to Sandy, Oregon | |
| Columbia Estuary, Oregon | |
| Columbia Gorge, Washington | |
| Columbia Gorge, Oregon | |
| Willamette, Oregon | |
| Mid Columbia | Columbia Plateau, Oregon |
| Columbia Plateau, Washington | |
| Upper Columbia | Columbia Cascade, Washington |
| Snake River | Mountain Snake Salmon |
| Mountain Snake Clearwater | |
| Blue Mountain |
Each regional workshop was preceded by initial fact-finding by the HSRG. Data were collected and assembled into draft reports on the salmon and steelhead populations and hatchery programs within the region. The regional workshop began with a field visit to facilities and watersheds. The HSRG then met to review data and develop draft recommendations for hatchery programs. The federal, state and tribal managers of the region's hatchery programs were included at the end of the regional workshop so the HSRG could ask remaining questions and get the managers' initial reactions to the draft recommendations.
The HSRG captured all of this information in the AHA tool and the individual Population Reports. When the regional workshops within an area were completed, a cumulative workshop was held to "roll up" data on all of the populations in the area, allowing the HSRG and the area managers to view the "big picture" for that segment of the Columbia River Basin, which is presented in an ESU/DPS Rollup report.
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