The Lacey Act kicks in when a federal boundary is crossed. Usually, it is a state line or international border, but it could be argued for a federal boundary within a state (Forest Service, BLM, National Park, or a tribal reservation). Unless it has changed, there is/was a $250 value threshold that had to be exceeded.

States can have their own statutes on the dealing of illegally taken/sold wildlife.

For commercial fisheries violations, take a look at sections 77.15.110, 560, 565, 568, 570,620, 630, and 640 in the link to the WDFW enforcment statutes below:

http://apps.leg.wa.gov/rcw/default.aspx?cite=77.15