1st Generation Array – 2008 and 2009 – Columbia River

Side by side comparison of 2008 and 2009 spring Chinook smolt migrations: two in-river stocks, Yakima- and Snake River, which must migrate through 4 to 8 hydropower dams, respectively, and groups of Snake River smolts which are transported around all dams and released in the lower Columbia River. Read 2006-09 multi-year report