. . . . . . . "Haddock"@en . "iucn2.3" . . "VU" . "The haddock (Melanogrammus aeglefinus) is a salt water fish, found in the North Atlantic Ocean and associated seas.The haddock is easily recognized by a black lateral line running along its white side (not to be confused with pollock which has the reverse, i.e., white line on black side) and a distinctive dark blotch above the pectoral fin, often described as a \"thumbprint\" or even the \"Devil's thumbprint\" or \"St."@en . .