ESU STATUS AND DESCRIPTION:  Listed as threatened on March 25, 1999; threatened status reaffirmed on June 28, 2005.  The ESU includes all naturally spawned populations of chum salmon in the Columbia River and its tributaries in Washington and Oregon, as well as three artificial propagation programs: the Chinook River (Sea Resources Hatchery), Grays River, and Washougal River/Duncan Creek chum hatchery programs.

CRITICAL HABITAT STATUS: A final designation was published on September 2, 2005 (9.7 Mb PDF), with an effective date of January 2, 2006.

PROTECTIVE REGULATIONS:  Final revised protective regulations were issued for this ESU on June 28, 2005.