Shellfish: Is a a broad term for various

Shellfish is a a broad term for various aquatic mollusks, crustaceans, and echinoderms that are used as food. A culinary and fisheries term, rather than taxonomic, the term shellfish is imprecisely defined, with some including only those aquatic invertebrates that have a shell or a shell-like exoskeleton —such as bivalves (clams, oysters), gastropods (snail, abalone), crabs, lobsters, shrimp, and sea urchins —and others including also the shell-less cephalopods (squid, octopus). In ... shellfish , any aquatic invertebrate animal having a shell and belonging to the phylum Mollusca, the class Crustacea (phylum Arthropoda), or the phylum Echinodermata. The term is often used for the edible species of the groups, especially those that are fished or raised commercially. Bivalve mollusks, including oysters, mussels, scallops, and clams, rank among the most commercially important shellfish throughout the world. Certain gastropod mollusks, such as abalone, whelk, and conch, are ... While shellfish offer various health benefits due to their nutrient-rich profile, not all types of shellfish are equally healthy. Some shellfish , such as shrimp, crab, mussels, and oysters, are considered healthier options due to their lower levels of saturated fat and higher amounts of omega-3 fatty acids and essential minerals. Learn all types of shellfish in English with pictures. Includes names, groups, and vocabulary for crustaceans and mollusks.