In this subchapter:
(1) "Crab" means all species in the families Portunidae and Xanthidae.
(2) "Commercial crab fishing" means pursuing, taking, attempting to take, or landing crabs in this state for pay or for the purpose of sale, barter, or exchange.
(3) "License" means a commercial license issued in accordance with a proclamation under this subchapter that authorizes commercial crab fishing or the operation of a commercial crab boat.