Pacific cod
Pacific cod (Gadus macrocephalus) is a species of ray-finned fish in the family Gadidae. It is a major commercial fish species and is also known as gray cod or grey cod, and grayfish or greyfish. It has three separate dorsal fins, and the catfish-like whiskers on its lower jaw. In appearance, it is similar to the Atlantic cod.
Distribution and habitat
Pacific cod are found in the colder waters and deeper sea regions throughout the North Pacific ocean, mainly in the Bering Sea. They are found in huge schools that can often occupy several cubic kilometers of ocean. The Pacific cod is an important part of the economy in both Alaska and Russia.
Description
Pacific cod are around 18 inches to 6 feet long, and their weight can vary from 5 to 50 pounds. They are bottom dwellers and are found at various depths, from the shoreline down to the continental shelf.
Diet
Pacific cod feed on other fish, crabs, worms, squid, and octopus. Young Pacific cod feed on copepods, amphipods, and other small invertebrates.
Reproduction
Pacific cod spawn between January and May, with peak spawning occurring in February and March. Females release their eggs in batches, and males guard the eggs for up to a month until they hatch.
Commercial use
Pacific cod is a major species for commercial fishing industries. They are caught with trawls, longlines and pots. Once caught, the fish are processed into fillets, frozen, and sold in markets around the world.
Conservation status
The Pacific cod population is currently considered to be healthy. However, there are concerns about the impact of commercial fishing on the species. The IUCN has not yet assessed the Pacific cod's conservation status.
See also
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