Skip to content
FishWise
Haddock

Cod

Haddock

Melanogrammus aeglefinus

SaltwaterGadidaeVulnerable

About

Haddock is a popular North Atlantic groundfish with a distinctive black lateral line and a dark blotch above the pectoral fin known as the "Devil's thumbprint." They are bottom dwellers found over sand, gravel, and rocky substrates.

Average size
14-23 inches, 2-7 lbs
Colors
Dark purplish-gray on back, silvery sides and white belly with a distinctive black lateral line
Diet
Bottom-dwelling invertebrates including worms, crustaceans, mollusks, sea urchins, and small fish
Region
North Atlantic Ocean, from Newfoundland to Cape May, NJ on the western side. Important fishery in New England and Atlantic Canada