Haddock vs. Whitefish — What's the Difference?

The haddock (Melanogrammus aeglefinus) is a saltwater ray-finned fish from the family Gadidae, the true cods. It is the only species in the monotypic genus Melanogrammus.

Any of various freshwater salmonid food fishes of the genera Coregonus and Prosopium chiefly of North America, having a generally white or silvery color.

A silvery-grey bottom-dwelling fish of North Atlantic coastal waters, related to the cod. It is popular as a food fish and is of great commercial value.

Any of various similar or related fishes, such as the lake herring, whiting, or menhaden.

A food fish (Melanogrammus aeglefinus) of northern Atlantic waters, closely related to and resembling the cod, but having a dark spot above each pectoral fin.

See beluga.

A marine fish, Melanogrammus aeglefinus, of the North Atlantic, important as a food fish.

Any of many fish.

A marine food fish (Melanogrammus æglefinus), allied to the cod, inhabiting the northern coasts of Europe and America. It has a dark lateral line and a black spot on each side of the body, just back of the gills. Galled also haddie, and dickie.

Any of several North American freshwater fish, of the genus Coregonus, used as food.

Lean white flesh of fish similar to but smaller than cod; usually baked or poached or as fillets sauteed or fried

Any of several other fish, such as whiting (Merlangius merlangus) or menhaden (Brevoortia spp. and Ethmidium spp.).

Important food fish on both sides of the Atlantic; related to cod but usually smaller

(fisheries) Any of several species of demersal fish with fins, particularly cod, whiting, and haddock, as opposed to the oily or pelagic fishes.

The beluga (both the sturgeon and the whale)

To fish for whitefish.

Any one of several species of Coregonus, a genus of excellent food fishes allied to the salmons. They inhabit the lakes of the colder parts of North America, Asia, and Europe. The largest and most important American species (Coregonus clupeiformis) is abundant in the Great Lakes, and in other lakes farther north. Called also lake whitefish, and Oswego bass.

Any market fish--edible saltwater fish or shellfish--except herring

Flesh of salmon- or trout-like cold-water fish of cold lakes of the northern hemisphere

Silvery herring-like freshwater food fish of cold lakes of the northern hemisphere