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member of the large family Gadidae, comprising commercially important food fishes. The family, whose members are found in the N Atlantic and Pacific, includes the tomcods, the haddock, and the pollacks (or pollocks). The cod was extremely important to the economic and social growth of New England; it has been used as a Massachusetts state emblem. Today the cod stocks have been enormously depleted off the coast of New England and Newfoundland owing to overfishing and in some cases increasing ocean temperatures, and restrictions on the catch have been imposed. The European Union has also restricted cod fishing in the North Sea, but it is unclear if the restrictions will be sufficient to preserve cod populations. All cods are bottom-feeders with soft fins; the large ventral fins are located under or in front of the pectorals rather than behind them as in other fishes.

The Atlantic cod has two distinct color phases, grray-green and reddish brown. Its average weight is 10 to 25 lb (4.5–11.3 kg), but specimens weighing up to 200 lb (90 kg) have been recorded. Young Atlantic cod or haddock prepared in strips for cooking is called scrod. Cods 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 midocean, a very small number of which survive. The Pacific cod is found N of Oregon.

The tomcod resembles a young Atlantic cod with long, tapering ventral fins. It rarely exceeds 15 in. (37.5 cm) in length and lives close to shore. There is also a Pacific tomcod. The pollack, also called coalfish or green cod, is a plump olive-green cod found in cool waters of the Atlantic. Pollacks have forked tails and pale lateral lines and grow to 3 ft (90 cm) and 30 lb (13.6 kg).

The haddock is the most important food fish of Atlantic waters; most of the large annual catch is marketed frozen. It is also found in colder European waters. Haddocks are also bottom-feeders but are found in deeper water (up to 100 fathoms). They are smaller than cods, reaching 30 lb (13.6 kg) and a length of 3 ft (90 cm), and have black lateral lines and dark side patches. Finnan haddie is lightly smoked haddock.

Lings and hakes, related to the cod but in several families in the same order, are fishes of commercial importance found in warmer waters. More slender than the cod, they are strong swimmers, preying on crustaceans and small fish. The freshwater, codlike burbot, found deep in northern streams and lakes of North America and Eurasia, is in the same family as the ling. The burbot has a single barbel on its chin.

Cods are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Actinopterygii, order Gadiformes, family Gadidae. Lings and burbots are in the family Lotidae; hakes in the families Merluciidae and Phycidae.


See M. Kurlansky, Cod: A Biography of the Fish That Changed the World (1997).

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(Gadus morhua), a fish of the family Gadidae. The cod has three dorsal fins and two anal fins. The coloring varies from greenish olive to brown, with tiny yellow-brown spots; the belly is white. The body measures up to 1.8 m in length and weighs up to 40 kg. Cod fished commercially usually measure 40–80 cm in length and weigh up to 10 kg; they are fished from the age of 3 to 10. They are distributed in temperate waters of the Atlantic and Pacific oceans. The cod has numerous subspecies, including the Atlantic cod, which has a number of varieties, and the White Sea and Baltic cod.

The Atlantic cod spawns 500,000 to 60 million pelagic eggs measuring 1.2–1.8 mm in diameter. The Baltic cod attains sexual maturity in two to three years, and the Atlantic cod in five to nine years. Spawning usually occurs near the shore. The larvae are pelagic; the young stay near the shore, where they feed on zoo-plankton, and later on bottom-dwelling invertebrates. The adult cod is a predator that feeds on herring, capelin, sand launces, and other fishes, as well as crustaceans. Feeding and spawning migrations for distances up to 2,000 km have been recorded for the Atlantic cod.

Cod is one of the most important food fishes. The cod’s liver is rich in an oil (up to 57 percent) from which vitamins A and D are obtained.


Svetovidov, A. N. Treskoobraznye. Moscow-Leningrad, 1948. (Fauna SSSR: Ryby, vol. 9, fasc. 4.)
Maslov, N. A. “Semeistvo treskovykh.” In Promyslovye ryby Barentsova i Belogo morei. Leningrad, 1962.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


(vertebrate zoology)
The common name for fishes of the subfamily Gadidae, especially the Atlantic cod (Gadus morrhua).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


1. any of the gadoid food fishes of the genus Gadus, esp G. morhua (or G. callarias), which occurs in the North Atlantic and has a long body with three rounded dorsal fins: family Gadidae. They are also a source of cod-liver oil
2. any other fish of the family Gadidae (see gadid)
3. Austral any of various unrelated Australian fish, such as the Murray cod
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

capacity on demand

Paying for extra processing power as needed. High-end servers may be designed with additional processors that normally remain unused. When customers activate these standby CPUs to handle a larger workload, they pay the vendor for the added processing power. IBM popularized capacity-on-demand (CoD) on its mainframes and then extended it to its iSeries and pSeries (AS/400 and RS/6000). See capacity planning.


Paying for extra processing power as needed. High-end servers may be designed with additional processors that normally remain unused. When customers activate these standby CPUs to handle a larger workload, they pay the vendor for the added processing power. IBM popularized capacity-on-demand (CoD) on its mainframes and then extended it to its iSeries and pSeries (AS/400 and RS/6000). See capacity planning.
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References in periodicals archive ?
On the basis of region, the global cod liver oil market has been segmented as-
30 m [COD.sup.1] Sprinting Test (30[CODS.sup.1]): The participants performed a 30-m sprint with a COD every 5 m at an angle of 60[degrees] (Ruscello et al., 2013).
Tyne boat Predator has seen good catches of fish to double figures; after taking the skipper's advice to use shads Marc Hardingham took several cod - including two of around 8lb - in quick succession while christening his new rod.
Despite the scientific evidence, expect the dominant players in the fishery to launch a new-old campaign of outrage against the measures needed to save, and rebuild cod stocks.
This will ensure the extinction of cod as a commercial resource in New England.
ONLY a couple of fish were caught in the Redcar N and G Match - but they were nice sized cod.
Small cod and chips - PS3.70 TRECENYDD FISH FACTORY 102 St Cenydd Road, Caerphilly CF83 2TE - 029 2088 2919 THE Trecenydd Fish Factory is the most modern fish and chip shop I have ever seen.
Fish & Chips look safe for the moment -- and that newspaper story should prove ideal for fish wrappings -- what a load of cod!
Ms Gilbert told the court: "The menu labelled the food as cod and chips.
Various planning opportunities, such as disposing of certain debtor property in the year of COD realization (via sales to creditors or third parties), may be available to debtors to utilize NOLs or avoid basis reduction.
BC: Rather than work on his memory skills, The Big Cod puts his effort into maintaining the physique of a French underwear model.
The agreement covers the supply of 2m small juveniles per year and secures Codfarmers a sufficient supply of cod juveniles until its own production starts.