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Morphology

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Dorsal spines (total): 0; Analspines: 0
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Recorder
Rodolfo B. Reyes
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Trophic Strategy

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Epibenthic (Ref. 58426). Found offshore in deep water, always on soft bottoms of gravel, sand, mud, shells, and stones. Occurs in water temperatures close to or below 0°C. Feeds on decapod, amphipod, and euphausiid crustaceans, sometimes fishes are included in the diet.
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Drina Sta. Iglesia
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Biology

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Epibenthic (Ref. 58426). Found offshore in deep water, always on soft bottoms of gravel, sand, mud, shells, and stones. Occurs in water temperatures close to or below 0°C. Feeds on decapod, amphipod, and euphausiid crustaceans, sometimes fishes are included in the diet (Ref. 9985).
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Susan M. Luna
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Importance

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fisheries: commercial
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Arctic rockling

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The Arctic rockling (Gaidropsarus argentatus), also called the silver rockling or Arctic threebeard,[2][3] is a species of fish in the family Lotidae.[4][5][6]

Description

Illustration of fish found on the Danish Ingolf expedition; Arctic rockling is numbered 8, the orange fish in the upper right.

The Arctic rockling's maximum length is 35 cm (14 in).[7] It has two dorsal fins and one anal fin, with the first ray in the first dorsal fin being elongated to form a whisker-like projection. It has 51–53 vertebrae (including urostyle).[8] The upper body is brown-red, its belly pink, there is a blue hue around its head, and the barbels and fin tips are red. The young are silvery in colour, hence the name.[2]

Habitat

Arctic rockling live in the northeastern Atlantic Ocean,[9] in very cold water, 0 °C (32 °F) or lower.[10] It is epibenthic, living over gravel, mud or sand at depths of 400–500 m (1,300–1,600 ft), sometimes as shallow as 150 m (490 ft).[2]

Behaviour

Arctic rockling feed on decapod, amphipod, and euphausiid crustaceans, and fish.[11]

References

  1. ^ "WoRMS - World Register of Marine Species - Gaidropsarus argentatus (Reinhardt, 1837)". www.marinespecies.org.
  2. ^ a b c "Silver Rockling - Gaidropsarus argentatus". www.arctic.uoguelph.ca.
  3. ^ Denmark), Jorgen Nielsen (Natural History Museum of; Paul Fernandes (School of Biological Sciences, Zoology Building; Lorance (IFREMER), Pascal; Research), Kjell Nedreaas (Institute of Marine; Strathclyde), Robin Cook (MASTS Marine Population Modelling Group Department of Mathematics and Statistics University of; Ann-Britt Florin (Institute Of Coastal Research, Department of Aquatic Resources (October 17, 2014). "IUCN Red List of Threatened Species: Gaidropsarus argentatus". IUCN Red List of Threatened Species.
  4. ^ "Bulletin of the United States National Museum". U.S. Government Printing Office. August 28, 1898 – via Google Books.
  5. ^ Farrell, Anthony P.; Steffensen, John F. (October 26, 2005). Fish Physiology: The Physiology of Polar Fishes. Gulf Professional Publishing. ISBN 9780123504463 – via Google Books.
  6. ^ Campana, Steven E. (August 28, 2004). Photographic Atlas of Fish Otoliths of the Northwest Atlantic Ocean. NRC Research Press. ISBN 9780660191089 – via Google Books.
  7. ^ "WoRMS - World Register of Marine Species - Gaidropsarus argentatus (Reinhardt, 1837)". www.marinespecies.org.
  8. ^ Coad, Brian W.; Reist, James D. (January 1, 2018). Marine Fishes of Arctic Canada. University of Toronto Press. ISBN 9781442647107 – via Google Books.
  9. ^ "Fishery Bulletin". National Marine Fisheries Service. August 28, 1979 – via Google Books.
  10. ^ "Marine Species Identification Portal : Arctic rockling - Onogadus argentatus". species-identification.org.
  11. ^ "WoRMS - World Register of Marine Species - Gaidropsarus argentatus (Reinhardt, 1837)". www.marinespecies.org.
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Arctic rockling: Brief Summary

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The Arctic rockling (Gaidropsarus argentatus), also called the silver rockling or Arctic threebeard, is a species of fish in the family Lotidae.

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Diet

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Feeds on decapod, amphipod, and euphausiid crustaceans, sometimes fishes are included in the diet.

Reference

North-West Atlantic Ocean species (NWARMS)

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Kennedy, Mary [email]

Distribution

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Northern Atlantic: off southeastern coasts of Greenland, all but southern coast of Iceland, the Faroe-Shetland ridge to Norwegian coasts north from Bergen. In the western North Atlantic from Greenland southward to off Baffin Island and Labrador to the Grand Bank.

Reference

North-West Atlantic Ocean species (NWARMS)

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Habitat

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Occasionally found in Canadian Atlantic waters. Deepwater species. Found offshore at depths of 150- 2000 m on soft bottoms.

Reference

North-West Atlantic Ocean species (NWARMS)

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Habitat

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benthic

Reference

North-West Atlantic Ocean species (NWARMS)

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