Gadus

Gadus is a genus of demersal fish in the family Gadidae, commonly known as cod, although there are additional cod species in other genera. The best known member of the genus is the Atlantic cod.

Gadus
Gadus morhua, Atlantic cod
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gadiformes
Family: Gadidae
Genus: Gadus
Linnaeus, 1758 [1]
Type species
Gadus morhua
Linnaeus 1758
Species
Synonyms

Species

Until recently, three species in the genus were recognized. Modern taxonomy also includes a fourth one, the Alaska pollock (Gadus (=Theragra) chalcogrammus), which is not separate from the Norway pollock.[2][3] Furthermore, Greenland cod (G. ogac) is no longer considered a distinct species but rather a subspecies of Pacific cod (G. macrocephalus).[3][4]

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 [5] [6] [7] Vulnerable[8]
Pacific cod Gadus macrocephalus Tilesius, 1810 119 cm cm 22.7 kg 18 years 4.0 [9] [10] [11] Not assessed
Greenland cod Gadus ogac Richardson, 1836 77.0 cm cm kg 12 years 3.6 [12] [13] [14] Not assessed
Alaska pollock Gadus chalcogrammus Pallas, 1811 91.0 cm cm 3.85 kg 15 years 3.5 [15] [16] [17] Not assessed [18]

References
  1. WoRMS (2011). Nicolas Bailly (ed.). "Gadus". FishBase. World Register of Marine Species. Retrieved July 5, 2011.
  2. Eschmeyer W.F. (2012)chalcogrammus, Gadus Archived 2013-12-20 at the Wayback Machine Catalog of Fishes. California Academy of Sciences.
  3. Coulson MW, Marshall HD, Pepin P, Carr SM (2006). "Mitochondrial genomics of gadine fishes: implications for taxonomy and biogeographic origins from whole-genome data sets" (PDF). Genome. 49 (9): 1115–1130. doi:10.1139/g06-083. PMID 17110992. Archived from the original (PDF) on 2013-12-20. Retrieved 2012-04-27.
  4. 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.
  5. Froese, Rainer and Pauly, Daniel, eds. (2012). "Gadus morhua" in FishBase. April 2012 version.
  6. Gadus morhua (Linnaeus, 1758) FAO, Species Fact Sheet. Retrieved April 2012.
  7. "Gadus morhua". Integrated Taxonomic Information System. Retrieved 4 January 2017.
  8. Sobel J (1996). "Gadus morhua". IUCN Red List of Threatened Species. 1996: e.T8784A12931575. doi:10.2305/IUCN.UK.1996.RLTS.T8784A12931575.en.
  9. Froese, Rainer and Pauly, Daniel, eds. (2012). "Gadus macrocephalus" in FishBase. April 2012 version.
  10. Gadus macrocephalus (Tilesius, 1810) FAO, Species Fact Sheet. Retrieved April 2012.
  11. "Gadus macrocephalus". Integrated Taxonomic Information System. Retrieved 4 January 2017.
  12. Froese, Rainer and Pauly, Daniel, eds. (2012). "Gadus ogac" in FishBase. April 2012 version.
  13. Gadus ogac (Richardson, 1836) FAO, Species Fact Sheet. Retrieved April 2012.
  14. "Gadus ogac". Integrated Taxonomic Information System. Retrieved 4 January 2017.
  15. Froese, Rainer and Pauly, Daniel, eds. (2012). "Theragra chalcogramma" in FishBase. April 2012 version.
  16. Theragra chalcogramma (Pallas, 1811) FAO, Species Fact Sheet. Retrieved April 2012.
  17. "Theragra finnmarchica". Integrated Taxonomic Information System. Retrieved 4 January 2017.
  18. Gadus chalcogrammus [Catalogue of Life], Updated 15 March 2012. Retrieved 27 April 2012.
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