As used in this chapter, unless the context requires a different meaning: “Crustacea” means all edible species of crab, lobster and shrimp, whether raw or processed. “Depuration” means the process that uses a controlled aquatic environment to reduce the level of bacteria or viruses in live shellfish. “Establishment” means any vehicle, vessel, property or premises where crustacea, finfish or shellfish are transported, held, stored, processed, packed, repacked, or pasteurized in preparation for marketing. “Finfish” means any cold-blooded, strictly aquatic, water-breathing craniate vertebrate with fins, including cyclostomes, elasmobranchs and higher-gilled aquatic vertebrates with cartilaginous or bony skeletons or any parts thereof. “Relay” means to move shellfish for the purpose of natural purification from water which is not approved to water which is approved or conditionally approved by the State Health Commissioner. “Shellfish” means all species within the phylum Mollusca including but not limited to oysters, clams, mussels, scallops, conchs and whelks, whether raw or processed.