The State Department of Fish and Wildlife announced Sunday that anglers must release all salmon they catch, except hatchery coho on the Snoqualmie, Snohomish, Skykomish and Wallace Rivers.

Hatchery coho, which can be kept, can be identified by their clipped adipose fins.

The release order for all other salmon is effective now through Dec. 31, on the Snoqualmie River from the mouth to Snoqualmie Falls.

The order affects anglers on the Snohomish River, from the mouth to the confluence with Skykomish and Snoqualmie; on the Skykomish River, from the mouth to the confluence of North and South Forks; and on the Wallace River, from the mouth to above hatchery water intake.

Spawning ground surveys, counts at the Sunset Falls trap, and Wallace Hatchery rack returns indicate that the run sizes of coho and pink salmon in the Snohomish watershed are well below pre-season forecasts. For more information, contact WDFW, Mill Creek, Region 4 Office, (425) 775-1311.