Difference between revisions of "Greenland Cod"

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Latest revision as of 16:55, 20 March 2020

Greenland Cod, Gadus ogac

Greenland Cod
9 A small (approx. 9" long) Greenland cod (Gadus ogac) caught in the Parry Bay, Melville Sound, area. Photo: Jim Johnson.
Scientific classification
G. ogac

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Owing to the tough texture of flesh on the Greenland Cod, they have little value for commercial fishing, although they are occasionally caught in small quantities.

General Information and Adaptations

The Greenland cod is often called by its Inuktitut name, ogac. It is a close relative of the Atlantic cod and, like its cousin, has two anal fins and three dorsal fins, the first of which is rounded. It also has a projecting snout, a thin, well developed barbel on its chin, a light-coloured lateral line, and large eyes. Unlike the Atlantic cod, however, the ogac has no dark spots on its body. Instead, the colouration is brown to black with pale yellowish blotches and a grey to white belly. Male ogac have long club-shaped breeding tubercles on their body scales.

Behaviour and Distribution

The ogac is found in the ocean throughout Canada's Arctic, from Alaska to Hudson Bay, and down the Atlantic coast to Labrador. Although it has been found at depths of 400 m in warmer offshore waters, the Greenland cod is generally a shoreline species in cold waters. It lives from nine to twenty-one years, spawning yearly after maturity is reached between the ages of two and four. Spawning occurs from February to April in the ocean, or occasionally in brackish waters, with each female producing from one to two million large eggs.

Ogac are bottom-dwellers and do not migrate or form large schools. They prey primarily on fishes, such as capelin, polar cod, and Greenland halibut, but will also eat crustaceans, molluscs, starfishes, and worms. Ogac are also sometimes cannibals and will eat each other, but have few other predators.

Traditional Names and Uses

External resources

Name ID
NCBI Taxonomy 8052
WikiSpecies Gadus ogac
Wikipedia Greenland Cod
iNaturalist Greenland Cod
BOLD 747382