Shellfish: Any marine life that has an exoskeleton. Shellfish are not actually fish despite the name. They are simply underwater animals with hard exoskeletons. Common types of shellfish include lobster, shrimp, and prawns. Crayfish, oysters, and crabs are also commonly found at seafood markets and restaurants.
Mollusc: Molluscs are animals that live in water, though not necessarily under water for long periods of time. Molluscs commonly eaten by humans include snails, muscles, and abalone.
Scallop: A mollusk found all over the world. Some scallops have brightly colored shells that have been used as decorations. Today, wild fisheries harvest them for human consumption.
Freshwater Fish: Freshwater fish live in lakes, streams, and rivers where the salt content lower than 0.5 percent. Popular freshwater fish include bass and catfish.
Fish Farming: A variety of methods used to raise fish for food. Some fish farming takes place in indoor tanks. Aquaculture and mariculture techniques, however, take place outside in controlled areas of water. Fish such as salmon, tilapia, and cod are typically raised through fish farming.
Sushi: Sushi is a Japanese cuisine that consists of rice combined with another ingredient. Raw fish is the most common ingredient combined with the rice. There are, however, types of sushi that do not contain fish.
Sashimi: Raw fish served by itself. It is similar to sushi except it is not served with rice.