Seafood vs. Shellfish — What's the Difference?

Seafood is any form of sea life regarded as food by humans, prominently including fish and shellfish. Shellfish include various species of molluscs (e.g.

Shellfish is a colloquial and fisheries term for exoskeleton-bearing aquatic invertebrates used as food, including various species of molluscs, crustaceans, and echinoderms. Although most kinds of shellfish are harvested from saltwater environments, some are found in freshwater.

Shellfish and sea fish, served as food

Any of various edible aquatic invertebrate animals having a shell, especially mollusks such as clams and oysters, and crustaceans such as lobsters, crabs, and shrimp.

Edible fish or shellfish from the sea.

An edible mollusk, in contrast to a crustacean

Fish, shellfish, seaweed, and other edible aquatic life.

The edible flesh of such animals.

Edible fish (broadly including freshwater fish) or shellfish or roe etc

A fisheries and colloquial term for an aquatic invertebrate having an inner or outer shell, such as a mollusc or crustacean, especially when edible.

A culinary and nutritional term for several groups of non-piscine, non-tetrapod, aquatic animals that are used as a food source. The term often exclusively refers to edible aquatic crustaceans, bivalve mollusks and cephalopod mollusks; but sometimes echinoderms may be included as well.

Any aquatic animal whose external covering consists of a shell, either testaceous, as in oysters, clams, and other mollusks, or crustaceous, as in lobsters and crabs.

Meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean)

Invertebrate having a soft unsegmented body usually enclosed in a shell