California Ocean Recreational Salmon Landings and Success by Fishery, Port, Month and Species, in Numbers of Fish 1966-1976. In Fish Catch Statistics. California Department of Fish and Game

For variable "type": "King" & "Silver" (salmon species) are in number of fish "Fish/Day" - described as Salmon per Angler day, combined, so possibly average number of salmon a recreational fisherman catches in a single day