Diet of Antarctic toothfish ( Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica
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...
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2014
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Online Access: | http://dx.doi.org/10.1017/s095410201300093x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410201300093X |
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crcambridgeupr:10.1017/s095410201300093x 2024-06-23T07:47:43+00:00 Diet of Antarctic toothfish ( Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica Stevens, Darren W. Dunn, Matthew R. Pinkerton, Matthew H. Forman, Jeff S. 2014 http://dx.doi.org/10.1017/s095410201300093x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410201300093X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 26, issue 5, page 502-512 ISSN 0954-1020 1365-2079 journal-article 2014 crcambridgeupr https://doi.org/10.1017/s095410201300093x 2024-06-12T04:04:55Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctic Toothfish Antarctica Icefish Ross Sea Cambridge University Press Antarctic Ross Sea Antarctic Science 26 5 502 512 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Stevens, Darren W. Dunn, Matthew R. Pinkerton, Matthew H. Forman, Jeff S. |
spellingShingle |
Stevens, Darren W. Dunn, Matthew R. Pinkerton, Matthew H. Forman, Jeff S. Diet of Antarctic toothfish ( Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica |
author_facet |
Stevens, Darren W. Dunn, Matthew R. Pinkerton, Matthew H. Forman, Jeff S. |
author_sort |
Stevens, Darren W. |
title |
Diet of Antarctic toothfish ( Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica |
title_short |
Diet of Antarctic toothfish ( Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica |
title_full |
Diet of Antarctic toothfish ( Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica |
title_fullStr |
Diet of Antarctic toothfish ( Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica |
title_full_unstemmed |
Diet of Antarctic toothfish ( Dissostichus mawsoni) from the continental slope and oceanic features of the Ross Sea region, Antarctica |
title_sort |
diet of antarctic toothfish ( dissostichus mawsoni) from the continental slope and oceanic features of the ross sea region, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2014 |
url |
http://dx.doi.org/10.1017/s095410201300093x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410201300093X |
geographic |
Antarctic Ross Sea |
geographic_facet |
Antarctic Ross Sea |
genre |
Antarc* Antarctic Antarctic Science Antarctic Toothfish Antarctica Icefish Ross Sea |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctic Toothfish Antarctica Icefish Ross Sea |
op_source |
Antarctic Science volume 26, issue 5, page 502-512 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s095410201300093x |
container_title |
Antarctic Science |
container_volume |
26 |
container_issue |
5 |
container_start_page |
502 |
op_container_end_page |
512 |
_version_ |
1802651883491295232 |