This article is about demersal fish; for more definitions see whitefish.
Whitefish (white fish, demersal fish) is a fisheries term referring to several species of pelagic deep water fish with fins, particularly cod (Gadus morhua), whiting (Merluccius bilinearis), and haddock (Melanogrammus aeglefinus), but also hake (Urophycis), pollock (Pollachius), or others.
Unlike oily fish, white fish contain oils only in their liver, rather than in the gut, and can therefore be gutted as soon as they are caught, on board the ship. White fish has dry and white flesh.
White fish are divided into round fish which live near the sea bed (cod, coley) and flatfish such as plaice which live on the sea bed.
