Fish is a very popular food, but, as with other foods, not all of it is consumed, specifically those parts of the fish that are not sold directly to consumers.
Although some customers take the whole fish, many take it dressed, and many Americans use only steaks and fillets. Steaks and fillets generate the greatest waste, since as little as 20% and rarely more than 40% of the original fish is in those forms. The major other parts of the fish are the heads, skin and scales, guts/internal organs, fr…