In this chapter:
(1) "Commercial purposes" includes sale, barter, or exchange, or any other commercial use.
(2) "Mussels and clams" includes all freshwater and marine bivalve mollusks except species covered under other chapters of this code.
(3) "Nonresident" has the meaning assigned under Section 47.001 of this code.
(4) "Soft tissue" means mussel and clam body parts, exclusive of the shell, and pearls.
(5) "Resident" has the meaning assigned under Section 47.001 of this code.