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Diet of Antarctic toothfish (Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica

Diet of Antarctic toothfish (Dissostichus mawsoni) from the continental slope and oceanic... Abstract The diet of Dissostichus mawsoni captured by bottom longline in the Ross Sea region was examined during 2003, 2005 and 2010. The diet of sub-adult toothfish was similar to adult toothfish, comprising mainly benthic fishes and cephalopods. Sub-adult toothfish ate a greater variety of smaller prey than adults, including smaller fish and prawns. Grenadiers (Macrourus spp.) were the most important fish and overall prey species. On the continental slope, icefish (Channichthyidae) and eel cods (Muraenolepididae) were also important fish prey, while Psychroteuthis glacialis was the most important cephalopod prey. On oceanic features, toothfish fed mainly on Macrourus spp. but also fed on Antimora rostrata, cephalopods and the occasional mesopelagic to epipelagic fish. Diet varied significantly with toothfish size and location on northern parts of the Mawson and Iselin banks of the Ross Sea continental slope. There was no significant temporal change in diet composition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Antarctic Science Cambridge University Press

Diet of Antarctic toothfish (Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica

Antarctic Science , Volume 26 (5): 11 – Mar 4, 2014
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Publisher
Cambridge University Press
Copyright
Copyright © Antarctic Science Ltd 2014 
ISSN
1365-2079
eISSN
0954-1020
DOI
10.1017/S095410201300093X
Publisher site
See Article on Publisher Site

Abstract

Abstract The diet of Dissostichus mawsoni captured by bottom longline in the Ross Sea region was examined during 2003, 2005 and 2010. The diet of sub-adult toothfish was similar to adult toothfish, comprising mainly benthic fishes and cephalopods. Sub-adult toothfish ate a greater variety of smaller prey than adults, including smaller fish and prawns. Grenadiers (Macrourus spp.) were the most important fish and overall prey species. On the continental slope, icefish (Channichthyidae) and eel cods (Muraenolepididae) were also important fish prey, while Psychroteuthis glacialis was the most important cephalopod prey. On oceanic features, toothfish fed mainly on Macrourus spp. but also fed on Antimora rostrata, cephalopods and the occasional mesopelagic to epipelagic fish. Diet varied significantly with toothfish size and location on northern parts of the Mawson and Iselin banks of the Ross Sea continental slope. There was no significant temporal change in diet composition.

Journal

Antarctic Science – Cambridge University Press

Published: Mar 4, 2014

Keywords: feeding selectivity; trophic relationships

References

  • Partitioning the variation among spatial, temporal and environmental components in a multivariate data set
  • Variation in the diet of the Patagonian toothfish with size, depth and season around the Falkland Islands
  • Partialling out the spatial component of ecological variation
  • Some observations of the feeding habits of a Weddell seal, and measurements of its prey, Dissostichus mawsoni, at McMurdo Sound, Antarctica
  • Feeding habits of the ommastrephid squid Nototodarus sloanii on the Chatham Rise, New Zealand
  • Pleuragramma antarcticum (Pisces, Nototheniidae) as food for other fishes in McMurdo Sound, Antarctica
  • Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (subarea 88.1)
  • Diet and scavenging habits of the smooth skate Dipturus innominatus
  • Diet of Patagonian toothfish (Dissostichus eleginoides) around Macquarie Island, South Pacific Ocean
  • Beak length analysis of the Southern Ocean squid Psychroteuthis glacialis (Cephalopoda: Psychroteuthidae) and its use for size and biomass estimation
  • Antarctic icefishes (Channichthyidae): a unique family of fishes. A review, part I
  • The analysis of activeness and composition of food items of the Antarctic toothfish D. mawsoni (Nototheniidae) in Ross and Amundsen Seas during the 2006-2007 fishing season
  • Contribution to the biology of squid in the Prydz Bay region, Antarctica
  • Species identification and age estimation for the ridge-scaled Macrourid (Macrourus whitsoni) from the Ross Sea
  • A new species of grenadier, genus Macrourus (Teleostei, Gadiformes, Macrouridae) from the southern hemisphere and a revision of the genus
  • Diet of seven species of Antarctic fishes and estimation of their daily rations
  • Results of investigation of the diet of Antarctic toothfish Dissostichus mawsoni (Nototheniidae) in the Lazarev Sea
  • The stomach contents of Patagonian toothfish around South Georgia (South Atlantic)
  • Food habits of albacore, bluefin tuna and bonito in Californian waters
  • A balanced model of the food web of the Ross Sea, Antarctica
  • Diet and trophic niche of Macrourus spp. (Gadiformes, Macrouridae) in the Ross Sea region of the Southern Ocean
  • The diet of toothfish species Dissostichus eleginoides and Dissostichus mawsoni with overlapping distributions
  • Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica
  • The summer diet of demersal fish at the South Shetland Islands
  • An evaluation of the precision of diet description
  • A guide to the fish otoliths from waters off the Australian Antarctic Territory, Heard and Macquarie islands
  • Fishes beneath Antarctic Ice
  • The range of Dissostichus mawsoni Norman and some features of its biology