Cod

Cod is the common name for fish of the genus Gadus (family Gadidae). It is also used as the common name for a variety of closely-related fishes. In the text, cod is used usually to mean fish of the species G. morhua, or the Atlantic cod; however, it also is used more inclusively to mean any fish of the genus Gadus, including G. morhua, G. macrocephalus (the Pacific cod), and G. ogac (the Greenland cod). Occasionally the book will use cod in a generic way to refer to cod and cod-like fish including, for example, haddock and whiting.

Haddock, Whiting, and Hake

Haddock (Melanogrammus aeglefinus and Whiting (Merlangius merlangus) are fish species related to cod inasmuch as they are visually similar, often caught in proximity to cod, and often sold as cod. The term Hake is less distinct in meaning and refers to fish in the family...