Species of fish

Greenland cod

Scientific classification
Kingdom:  | Animalia
Phylum:  | Chordata
Class:  | Actinopterygii
Order:  | Gadiformes
Family:  | Gadidae
Genus:  | Gadus
Species:  |

G. ogac

Binomial name
Gadus ogac

J. Richardson, 1836

The Greenland cod (Gadus ogac), commonly known also as ogac, is a species of ray-finned fish in the cod family, Gadidae. Genetic analysis has shown that it may be the same species as the Pacific cod (Gadus macrocephalus).[1] It is a bottom-dwelling fish and is found on the continental shelf in the Arctic Ocean and northwestern Atlantic Ocean, its range extending from Alaska to West Greenland, then southwards along the Canadian coast to the Gulf of St. Lawrence and Cape Breton Island. It is a commercially harvested food fish,[2][3] but landings have been greatly reduced in recent years.

## Contents

* 1 Taxonomy
* 2 Description
* 3 Fisheries
* 4 References
* 5 Further reading
* 6 External links

## Taxonomy[edit]

Molecular genetic analyses strongly suggest that Greenland cod is not different from Pacific cod, Gadus macrocephalus \- Gadus ogac is then a junior synonym of G. macrocephalus.[1] ITIS and the Catalogue of Life list Gadus ogac as synonym of G. macrocephalus.[4]

## Description[edit]

In colour the Greenland cod is generally sombre, ranging from tan to brown to silvery. Its appearance is similar to that of other cod species; generally heavy-bodied, elongate, usually with a stout caudal peduncle.[3] They can grow to a length of 77 cm.[2]

They are bottom fishes inhabiting inshore waters and continental shelves, up to depths of 200 m. Their range covers the Arctic Ocean and Northwest Atlantic Ocean from Alaska to West Greenland, then south along the Canadian coast to the Gulf of St. Lawrence and Cape Breton Island generally from 45 to 75 degrees north.[3]

Their wholesome flesh is whitish and flaky but firmer and tougher and less desirable than that of the Atlantic cod.[citation needed] The stock of Greenland cod has been strongly reduced in recent years.[3]

## Fisheries[edit]

Global capture of Greenland cod in tonnes reported by the FAO, 1950–2010[3]

## References[edit]

1. ^ a b Carr, S. M.; Kivlichan, D. S.; Pepin, P.; Crutcher, D. C. (1999). "Molecular systematics of gadid fishes: Implications for the biogeographic origins of Pacific species". Canadian Journal of Zoology. 77: 19–26. doi:10.1139/z98-194.
2. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2005). "Gadus ogac" in FishBase. October 2005 version.
3. ^ a b c d e Gadus ogac (Richardson, 1836)  FAO, Species Fact Sheet. Retrieved April 2012.
4. ^ Catalogue of Life: Gadus macrocephalus.

## Further reading[edit]

* Hamilton LC, Brown BC and Rasmussen RO (2003) "West Greenland’s Cod-to-Shrimp Transition: Local Dimensions of Climatic Change" Arctic, 56 (3): 271–282.
* Roe P (2012) "Growth variability in Atlantic cod (Gadus morhua) near its northern range of distribution" Master thesis, Aarhus University.
* Therkildsen NO, Hemmer‐Hansen J, Wisz MS, Pampoulie C, Meldrup D, Bonanomi S, Retze A, Olsen SM and Nielsen EE (2013) "Spatiotemporal SNP analysis reveals pronounced biocomplexity at the northern range margin of Atlantic cod Gadus morhua" Evolutionary Applications, 6 (4): 690–705.

## External links[edit]

* DNA test rewrites history of Greenland cod ScienceNordic, 30 March 2013.

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Cod, haddock and pollock

True cod|

* Gadus
* Atlantic cod
* Pacific cod
* Greenland cod
* Alaska pollock
* Norway pollock

Cod-like|

* Arctic cod
* East Siberian cod
* Eucla cod
* Blue ling
* Common ling
* Pelagic cod
* Polar cod
* Poor cod
* Rock cod
* Saffron cod
* Small-headed cod

Other cod|

* Blue cod
* Eastern freshwater cod
* Mary River cod
* Murray cod
* Potato cod
* Sleepy cod
* Trout cod
* Nototheniidae
* Antarctic cod
* Black cod
* Maori cod

True pollock|

* Pollachius
* Atlantic pollock
* Saithe (pollock)

Fisheries|

* Bottom trawling
* Cod boat
* Cod fisheries
* Cod fishing in Newfoundland
* Cod Wars
* Collapse of the Atlantic northwest cod fishery
* Fishing stage
* Harold Innis and the cod fishery

Food|

* Cod as food
* Ackee and saltfish
* Arbroath smokie
* Bacalaíto
* Boknafisk
* Cabbie claw
* Cod liver oil
* Crappit heid
* Cullen skink
* Dried and salted cod
* Finnan haddie
* Fish and brewis
* Fish and chips
* Fish ball
* Fishcake
* Fish finger
* Fish fry
* Fish pie
* Fried fish
* Lutefisk
* Pescado frito
* Scrod
* Stockfish
* Taramasalata
* Traditional Grimsby smoked fish

Other topics|

* Banks dory
* Cajón de rumba
* Cod worm
* Fish flake
* Isinglass
* Sacred Cod
* Whitefish
* Whiting

Taxon identifiers|

* Wikidata: Q1028412
* Wikispecies: Gadus ogac
* ADW: Gadus_ogac
* BioLib: 141874
* CoL: 6K6Q9
* EUNIS: 124857
* GBIF: 2415827
* iNaturalist: 220281
* IRMNG: 11267220
* ITIS: 164717
* NatureServe: 2.101162
* NBN: NHMSYS0020552640
* NCBI: 8052
* uBio: 127212
* WoRMS: 158926

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