White fish is a fisheries term referring to several species of deep water
ocean fish--often cod (Gadus morhua), whiting (Merluccius bilinearis) and
haddock (Melanogrammus aeglefinus) but also hake (Urophycis spp),
pollock, saithe (Pollachius virens), or others.
Sometimes eaten straight but often used reconstituted for fishsticks,
gefilte fish, lutefisk, imitation crabmeat, etc.