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Cod (pl.: cod) is the common name for the demersal fish genus Gadus, belonging to the family Gadidae. [1] Cod is also used as part of the common name for a number of other fish species, and one species that belongs to genus Gadus is commonly not called cod (Alaska pollock, Gadus chalcogrammus).
Alaska pollock is the world's second most important fish species, after the Peruvian anchoveta, in terms of total catch. [33] Alaska pollock landings are the largest of any single fish species in the U.S, with the average annual Eastern Bering Sea catch between 1979 and 2022 being 1.26 million metric tons. [34]
Cod feed on mollusks, crabs, starfish, worms, squid, and small fish. Some migrate south in winter to spawn. A large female lays up to five million eggs in mid-ocean, a very small number of which survive. Cod has been an important economic commodity in international markets since the Viking period (around A.D. 800).
True cod Image Common name Scientific name Maximum length Common length Maximum weight Maximum age Trophic level Fish Base FAO ITIS IUCN status; Atlantic cod: Gadus morhua Linnaeus, 1758: 200 cm 100 cm 96.0 kg 25 years 4.4 [4] [5] [6] Vulnerable [7] Pacific cod: Gadus macrocephalus Tilesius, 1810: 119 cm cm 22.7 kg 18 years 4.0 [8] [9] [10] Not ...
The shortspine thornyhead (Sebastolobus alascanus), also known as the channel rockcod, shortspine channel rockfish or spinycheek rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae.
It contains several commercially important fishes, including the cod, haddock, whiting, and pollock. Most gadid species are found in temperate waters of the Northern Hemisphere , but several range into subtropical, subarctic , and Arctic oceans, and a single ( southern blue whiting ) is found in the Southern Hemisphere .
In 1968 the cod catch peaked at 810,000 tons, approximately three times more than the maximum yearly catch achieved before the super-trawlers. Around eight million tons of cod were caught between 1647 and 1750 (103 years), encompassing 25 to 40 cod generations. The factory trawlers took the same amount in 15 years. [14]
Adult sablefish are opportunistic piscivores, preying on Alaskan pollock, eulachon, capelin, herring, sandlance, and Pacific cod, as well as squid, euphausiids, and jellyfish. [7] Sablefish are long-lived, with a maximum recorded age of 94 years [8] although the majority of the commercial catch in many areas is less than 20 years old. [9] [10]