The Pacific cod eats smaller fish and marine invertebrates. This species of cod may live up to 18 years. The Pacific cod is a true cod, as can be seen from the three dorsal fins, two anal fins, and whisker-like sensory organs on the chin called barbel.
Pacific cod are similar to the Atlantic cod in their importance to commercial fisheries. Much of the regulation for the Pacific cod fishery was in response to mistakes which led to overfishing of the Atlantic cod. Despite the lessons learned from the Atlantic cod, Pacific cod have been overfished in some areas.