Species Finder Species Posted Mar 14, 2000 Cod Species Identification Historically one of the most important commercial fish in North America. The Atlantic and Pacific cod species are two of the most popular, but there are several more subspecies in the family. The word "cod" is attached to many species of fish that do not necessarily belong to the family, such as Arctic cod. This page will look at both the Pacific and Atlantic variety. Appearance All cods have three rounded dorsal fins and a distinct barbel (a whisker-like organ, like on catfish) under the lower jaw.Coloring varies between species, but Pacific cod are brown or grayish with dark spots or patterns on the sides and a paler belly. Maximum Size Atlantic cod: Up to lengths of 51 inches (130 cm) and weights up to 55-77 pounds (25-35 kg) on average. However, specimens have been recorded at over 200 pounds (90.7 kg). Pacific cod: Grow much smaller than their Atlantic cousins, rarely exceeding 19.5 inches (50 cm) and 33 pounds (15 kg). Geographic Range Cod are found in northern waters in both the Atlantic and Pacific Oceans. Pacific cod can be found in both the east and west regions of the ocean, while Atlantic cod are more commonly found along the North American coast. Habitat Adult Atlantic cod live near the bottom at depths of 32.8 to 492 feet (10-150m). Their Pacific cousin dive to much greater depths, usually in the 328 to 820 foot (100-250m) range in the winter before moving to shallower waters (less than 328 feet deep) in the summer. Adults and large juveniles prefer mud, sand, and clay habitats. Life Span 20 years. Food Clams, worms, crabs, shrimp, and juvenile fish. Reproduction Pacific cod females have high reproductive potential - a mature female can produce over 5 million eggs. Pacific cod are single batch spawners, releasing all of their ripe eggs in a single spawning event within a few minutes.Large Atlantic females can produce between 3 and 9 million eggs. Spawning Cod spawn from winter through early spring, doing so on the bottom near shelf edges and upper slopes. Predators Predators include halibut, sharks, seabirds, and marine mammals. Information courtesy of NOAA.