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Arctogadus

Arctogadus glacialis, known also with ambiguous common names Arctic cod[1][2] and polar cod,[1][3] is an Arctic species of fish in the cod family Gadidae, related to the true cod (genus Gadus). Arctogadus glacialis is found in icy water. They grow to about 30 cm long, and are favorite food of narwhals and other arctic whales.

Arctogadus
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gadiformes
Family: Gadidae
Genus: Arctogadus
Dryagin, 1932
Species:
A. glacialis
Binomial name
Arctogadus glacialis
Synonyms

Arctogadus borisovi Dryagin, 1932
Gadus glacialis W. K. H. Peters, 1872
Phocaegadus megalops Jensen, 1948

Common names and taxonomy edit

The common names "Arctic cod" and "polar cod" can refer to either Arctogadus glacialis or Boreogadus saida, and "Arctic cod" may also refer to Eleginus nawaga.[4]

Another Arctic gadid, the East Siberian cod (Arctogadus borisovi), was until recently considered the closest relative of A. glacialis. It has, however, been found not to be distinct from A. glacialis, and should be included in this species. According to this result, Arctogadus is a monotypic genus. However, Arctogadus is a close relative of Boreogadus, and should perhaps be included in that genus.[5]

Appearance edit

Arctic cod have been cited to grow up to 32.5 cm (12.8 in) in total length. It has been distinguished from other cod species by its lack of the chin barbel. Populations of Arctic cod previously referred to the East Siberian cod however do have a chin barbel and grow up to 50–60 cm length.[5][6]

Distribution edit

The Arctic cod is widely distributed in the western part of the Arctic basin and the northwest and northeast coasts of Greenland. Its range is between 85° and 72°N latitude. Arctic cod can be found at depths of up to 1000 m, and frequently under ice.

Fish earlier attributed to the East Siberian cod are found off the western half of the coast of Canada and the coasts of Siberia and also off the northern and southern coasts of Greenland. The fish lives close to the sea floor at depths of 15 to 40 m, but it sometimes enters estuaries, and may also be found under pack ice.

The species is of minor commercial value.

Diet edit

A. glacialis in an ice-free area off northeastern Greenland were found to feed almost exclusively on pelagic prey (primarily copepods, amphipods, and mysids).[7]

References edit

  1. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2012). "Arctogadus glacialis" in FishBase. April 2012 version.
  2. ^ Daniel M. Cohen; Tadashi Inada; Tomio Iwamoto & Nadia Scialabba, eds. (1990). FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An Annotated and Illustrated Catalogue of Cods, Hakes, Grenadiers and other Gadiform Fishes Known to Date. Food and Agriculture Organization of the United Nations. pp. 25–27. ISBN 978-92-5-102890-2.
  3. ^ Polar Cod 2013-10-04 at the Wayback Machine University of Guelph.
  4. ^ Froese, R.; D. Pauly., eds. (2013). "FishBase. World Wide Web electronic publication. www.fishbase.org, version (10/2013)". Retrieved 28 November 2013.
  5. ^ a b Jordan, AD; Møller, PR; Nielsen, JG (2003). "Revision of the Arctic cod genus Arctogadus". Journal of Fish Biology. 62: 1339–1352. CiteSeerX 10.1.1.1.3927. doi:10.1007/s00300-001-0348-5. S2CID 15022883.
  6. ^ Toothed cod, Arctogadus borisovi Canada's Polar Life Portal, University of Guelph (2002)
  7. ^ Süfke, Lis; Piepenburg, Dieter; von Dorrien, Christian F. (1998). "Body size, sex ratio and diet composition of Arctogadus glacialis (Peters, 1874) (Pisces: Gadidae) in the Northeast Water Polynya (Greenland)". Polar Biology. 20 (5): 357–363. doi:10.1007/s003000050314. S2CID 23638483.

arctogadus, arctic, redirects, here, related, species, which, shares, common, names, boreogadus, saida, glacialis, known, also, with, ambiguous, common, names, arctic, polar, arctic, species, fish, family, gadidae, related, true, genus, gadus, glacialis, found. Arctic cod redirects here For the related species which shares its common names see Boreogadus saida Arctogadus glacialis known also with ambiguous common names Arctic cod 1 2 and polar cod 1 3 is an Arctic species of fish in the cod family Gadidae related to the true cod genus Gadus Arctogadus glacialis is found in icy water They grow to about 30 cm long and are favorite food of narwhals and other arctic whales Arctogadus Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Actinopterygii Order Gadiformes Family Gadidae Genus ArctogadusDryagin 1932 Species A glacialis Binomial name Arctogadus glacialis W K H Peters 1872 Synonyms Arctogadus borisovi Dryagin 1932 Gadus glacialis W K H Peters 1872 Phocaegadus megalops Jensen 1948 Contents 1 Common names and taxonomy 2 Appearance 3 Distribution 4 Diet 5 ReferencesCommon names and taxonomy editThe common names Arctic cod and polar cod can refer to either Arctogadus glacialis or Boreogadus saida and Arctic cod may also refer to Eleginus nawaga 4 Another Arctic gadid the East Siberian cod Arctogadus borisovi was until recently considered the closest relative of A glacialis It has however been found not to be distinct from A glacialis and should be included in this species According to this result Arctogadus is a monotypic genus However Arctogadus is a close relative of Boreogadus and should perhaps be included in that genus 5 Appearance editArctic cod have been cited to grow up to 32 5 cm 12 8 in in total length It has been distinguished from other cod species by its lack of the chin barbel Populations of Arctic cod previously referred to the East Siberian cod however do have a chin barbel and grow up to 50 60 cm length 5 6 Distribution editThe Arctic cod is widely distributed in the western part of the Arctic basin and the northwest and northeast coasts of Greenland Its range is between 85 and 72 N latitude Arctic cod can be found at depths of up to 1000 m and frequently under ice Fish earlier attributed to the East Siberian cod are found off the western half of the coast of Canada and the coasts of Siberia and also off the northern and southern coasts of Greenland The fish lives close to the sea floor at depths of 15 to 40 m but it sometimes enters estuaries and may also be found under pack ice The species is of minor commercial value Diet editA glacialis in an ice free area off northeastern Greenland were found to feed almost exclusively on pelagic prey primarily copepods amphipods and mysids 7 References edit a b Froese Rainer Pauly Daniel eds 2012 Arctogadus glacialis in FishBase April 2012 version Daniel M Cohen Tadashi Inada Tomio Iwamoto amp Nadia Scialabba eds 1990 FAO species catalogue Vol 10 Gadiform fishes of the world Order Gadiformes An Annotated and Illustrated Catalogue of Cods Hakes Grenadiers and other Gadiform Fishes Known to Date Food and Agriculture Organization of the United Nations pp 25 27 ISBN 978 92 5 102890 2 Polar Cod Archived 2013 10 04 at the Wayback Machine University of Guelph Froese R D Pauly eds 2013 FishBase World Wide Web electronic publication www fishbase org version 10 2013 Retrieved 28 November 2013 a b Jordan AD Moller PR Nielsen JG 2003 Revision of the Arctic cod genus Arctogadus Journal of Fish Biology 62 1339 1352 CiteSeerX 10 1 1 1 3927 doi 10 1007 s00300 001 0348 5 S2CID 15022883 Toothed cod Arctogadus borisovi Canada s Polar Life Portal University of Guelph 2002 Sufke Lis Piepenburg Dieter von Dorrien Christian F 1998 Body size sex ratio and diet composition of Arctogadus glacialis Peters 1874 Pisces Gadidae in the Northeast Water Polynya Greenland Polar Biology 20 5 357 363 doi 10 1007 s003000050314 S2CID 23638483 Retrieved from https en wikipedia org w index php title Arctogadus amp oldid 1174218046, wikipedia, wiki, book, books, library,

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