Spatial distribution of pelagic fish off Adelie and George V Land, East Antarctica in the austral summer 2008
Pelagic fish assemblages and community structure were examined along longitudinal and meridian transects off Adelie and George V Land, East Antarctica, in the austral summer 2008. Fish were sampled with an RMT 8 net principally from six discrete depth layers (0-50-100-200-500-100-2000 m) in the ocea...
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Online Access: | https://archimer.ifremer.fr/doc/00227/33830/32463.pdf https://doi.org/10.1016/j.polar.2011.04.001 https://archimer.ifremer.fr/doc/00227/33830/ |
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ftarchimer:oai:archimer.ifremer.fr:33830 2023-05-15T13:50:49+02:00 Spatial distribution of pelagic fish off Adelie and George V Land, East Antarctica in the austral summer 2008 Moteki, Masato Koubbi, Philippe Pruvost, Patrice Tavernier, Eric Hulley, Percy-alexander 2011-08 application/pdf https://archimer.ifremer.fr/doc/00227/33830/32463.pdf https://doi.org/10.1016/j.polar.2011.04.001 https://archimer.ifremer.fr/doc/00227/33830/ eng eng Elsevier Science Bv https://archimer.ifremer.fr/doc/00227/33830/32463.pdf doi:10.1016/j.polar.2011.04.001 https://archimer.ifremer.fr/doc/00227/33830/ 2011 Elsevier B.V. and NIPR. All rights reserved. info:eu-repo/semantics/openAccess restricted use Polar Science (1873-9652) (Elsevier Science Bv), 2011-08 , Vol. 5 , N. 2 , P. 211-224 Pelagic fish Community structure East Antarctica Mesopelagic fish Notothenioids text Publication info:eu-repo/semantics/article 2011 ftarchimer https://doi.org/10.1016/j.polar.2011.04.001 2021-09-23T20:25:10Z Pelagic fish assemblages and community structure were examined along longitudinal and meridian transects off Adelie and George V Land, East Antarctica, in the austral summer 2008. Fish were sampled with an RMT 8 net principally from six discrete depth layers (0-50-100-200-500-100-2000 m) in the oceanic zone and from three depth layers (0-50-100-200 m) over the continental shelf zone. A total of 20,281 individuals from 27 species were collected. Pleuragramma antarcticum was the most dominant species by number (18,710 inds), followed by Chionodraco hamatus (768), Trematomus newnesi (375), Cyclothone microdon (101), Electrona antarctica (92), Bathylagus antarcticus (51) and Notolepis coatsi (54). Cluster analysis revealed that the fish community was clearly divided at the Antarctic Slope Front into separate oceanic and shelf assemblages, being dominated by mesopelagic fish and notothenioids, respectively. The Southern Boundary of Antarctic Circumpolar Current likely restricted a more northern distribution of notothenioids in the upper 200 m. Mesopelagic fish dominated the large biomass below 500 m and notothenioids dominated that in the upper 100 m. It is considered that mesopelagic fish in the oceanic zone would unlikely be eaten by seabirds because no distinctive diel vertical migration to the surface layer was observed. In the neritic zone, notothenioids (C. hamatus, T. newnesi and P. antarcticum) possibly play an important role as prey items for flying seabirds, penguins and other notothenioids fish especially in the shallow depth stratum (0-100 m). Article in Journal/Newspaper Antarc* Antarctic Antarctica antarcticus East Antarctica George V Land Polar Science Polar Science Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Antarctic Austral East Antarctica George V Land ENVELOPE(148.000,148.000,-68.500,-68.500) The Antarctic Polar Science 5 2 211 224 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Pelagic fish Community structure East Antarctica Mesopelagic fish Notothenioids |
spellingShingle |
Pelagic fish Community structure East Antarctica Mesopelagic fish Notothenioids Moteki, Masato Koubbi, Philippe Pruvost, Patrice Tavernier, Eric Hulley, Percy-alexander Spatial distribution of pelagic fish off Adelie and George V Land, East Antarctica in the austral summer 2008 |
topic_facet |
Pelagic fish Community structure East Antarctica Mesopelagic fish Notothenioids |
description |
Pelagic fish assemblages and community structure were examined along longitudinal and meridian transects off Adelie and George V Land, East Antarctica, in the austral summer 2008. Fish were sampled with an RMT 8 net principally from six discrete depth layers (0-50-100-200-500-100-2000 m) in the oceanic zone and from three depth layers (0-50-100-200 m) over the continental shelf zone. A total of 20,281 individuals from 27 species were collected. Pleuragramma antarcticum was the most dominant species by number (18,710 inds), followed by Chionodraco hamatus (768), Trematomus newnesi (375), Cyclothone microdon (101), Electrona antarctica (92), Bathylagus antarcticus (51) and Notolepis coatsi (54). Cluster analysis revealed that the fish community was clearly divided at the Antarctic Slope Front into separate oceanic and shelf assemblages, being dominated by mesopelagic fish and notothenioids, respectively. The Southern Boundary of Antarctic Circumpolar Current likely restricted a more northern distribution of notothenioids in the upper 200 m. Mesopelagic fish dominated the large biomass below 500 m and notothenioids dominated that in the upper 100 m. It is considered that mesopelagic fish in the oceanic zone would unlikely be eaten by seabirds because no distinctive diel vertical migration to the surface layer was observed. In the neritic zone, notothenioids (C. hamatus, T. newnesi and P. antarcticum) possibly play an important role as prey items for flying seabirds, penguins and other notothenioids fish especially in the shallow depth stratum (0-100 m). |
format |
Article in Journal/Newspaper |
author |
Moteki, Masato Koubbi, Philippe Pruvost, Patrice Tavernier, Eric Hulley, Percy-alexander |
author_facet |
Moteki, Masato Koubbi, Philippe Pruvost, Patrice Tavernier, Eric Hulley, Percy-alexander |
author_sort |
Moteki, Masato |
title |
Spatial distribution of pelagic fish off Adelie and George V Land, East Antarctica in the austral summer 2008 |
title_short |
Spatial distribution of pelagic fish off Adelie and George V Land, East Antarctica in the austral summer 2008 |
title_full |
Spatial distribution of pelagic fish off Adelie and George V Land, East Antarctica in the austral summer 2008 |
title_fullStr |
Spatial distribution of pelagic fish off Adelie and George V Land, East Antarctica in the austral summer 2008 |
title_full_unstemmed |
Spatial distribution of pelagic fish off Adelie and George V Land, East Antarctica in the austral summer 2008 |
title_sort |
spatial distribution of pelagic fish off adelie and george v land, east antarctica in the austral summer 2008 |
publisher |
Elsevier Science Bv |
publishDate |
2011 |
url |
https://archimer.ifremer.fr/doc/00227/33830/32463.pdf https://doi.org/10.1016/j.polar.2011.04.001 https://archimer.ifremer.fr/doc/00227/33830/ |
long_lat |
ENVELOPE(148.000,148.000,-68.500,-68.500) |
geographic |
Antarctic Austral East Antarctica George V Land The Antarctic |
geographic_facet |
Antarctic Austral East Antarctica George V Land The Antarctic |
genre |
Antarc* Antarctic Antarctica antarcticus East Antarctica George V Land Polar Science Polar Science |
genre_facet |
Antarc* Antarctic Antarctica antarcticus East Antarctica George V Land Polar Science Polar Science |
op_source |
Polar Science (1873-9652) (Elsevier Science Bv), 2011-08 , Vol. 5 , N. 2 , P. 211-224 |
op_relation |
https://archimer.ifremer.fr/doc/00227/33830/32463.pdf doi:10.1016/j.polar.2011.04.001 https://archimer.ifremer.fr/doc/00227/33830/ |
op_rights |
2011 Elsevier B.V. and NIPR. All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.polar.2011.04.001 |
container_title |
Polar Science |
container_volume |
5 |
container_issue |
2 |
container_start_page |
211 |
op_container_end_page |
224 |
_version_ |
1766254123966005248 |