The Dover sole (Microstomus pacificus) is distributed in the waters off California, Oregon, and Washington along the West Coast of Canada, USA, and Mexico. The US West Coast Dover sole stock is managed by the National Marine Fisheries Service (NMFS) biennially. This species is also harvested in the waters of the Gulf of Alaska although it is uncertain if that population contributes to the biomass off the U.S. West Coast and therefore those catches are not included in this assessment.