A mackerel is a sea fish with a dark, patterned back. They'd gone out to fish for mackerel. Mackerel is this fish eaten as food. mackerel a sea fish that has oily flesh and a strong taste. Swift-moving, carnivorous, torpedo-shaped food and sport fishes (family Scombridae, order Perciformes) of temperate and tropical seas worldwide. Mackerels are 1-5.5 ft (30-170 cm) long. The common mackerel (Scomber scombrus) of the North Atlantic Ocean and the chub mackerel (S. colias) of the Pacific and Atlantic oceans are economically important, as are the Indian mackerels (genus Rastrelliger) and the frigate mackerels (genus Auxis). Other species (genus Scomberomorus) are favourite game fish. The name mackerel also refers to certain shark species (see mackerel shark), tuna, and bonito
Any of various sharks of the family Lamnidae, including the great white shark, mako, and porbeagle, having a pointed snout, a nearly symmetrical tail, and a reputation for aggressiveness. Any of several temperate-water sharks (genus Lamna) in a family (Isuridae) that also includes the great white shark and the mako shark group. The swift, active mackerel sharks have a crescent-shaped tail and slender teeth. They are gray or blue-gray above and paler below and about 10 ft (3 m) long. They eat fishes such as herring, mackerel, and salmon, sometimes taking fishermen's catches and damaging nets. They are fished commercially for food. Common species include the Atlantic mackerel shark, or porbeagle (L. nasus), and the Pacific mackerel shark, or salmon shark (L ditropis)
Any of various marine food fishes of the genus Scomberomorus, especially a commercially important species, S. maculatus, of American Atlantic coastal waters
medium-sized mackerel of temperate Atlantic and Gulf of Mexico any of several large marine food fishes of the genus Scomberomorus flesh of commercially important fishes especially of the Atlantic coastal waters of America