Cod is the best-selling, most popular fish available. They are often used in fishsticks, pre-breaded portions, drawn and filleted. Cod is a lean type of fish. Scrod is a marketing term used for cod weighing less than 1.1kg (2-1/2 lbs) Haddock is the second most commercially available type of fish. They are lean, with a strong flavor and a more delicate texture than Cod.