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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fttriple:oai:gotriple.eu:10670/1.8ojjp5 2023-05-15T13:53:54+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 https://doi.org/10.1016/j.polar.2011.04.001 https://archimer.ifremer.fr/doc/00227/33830/32463.pdf https://archimer.ifremer.fr/doc/00227/33830/ en eng Elsevier Science Bv doi:10.1016/j.polar.2011.04.001 10670/1.8ojjp5 https://archimer.ifremer.fr/doc/00227/33830/32463.pdf https://archimer.ifremer.fr/doc/00227/33830/ Archimer, archive institutionnelle de l'Ifremer Polar Science (1873-9652) (Elsevier Science Bv), 2011-08 , Vol. 5 , N. 2 , P. 211-224 geo envir Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1016/j.polar.2011.04.001 2023-01-22T17:01:16Z 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). Text Antarc* Antarctic Antarctica antarcticus East Antarctica George V Land Polar Science Polar Science Unknown Antarctic Austral East Antarctica George V Land ENVELOPE(148.000,148.000,-68.500,-68.500) The Antarctic Polar Science 5 2 211 224 |
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Open Polar |
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Unknown |
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fttriple |
language |
English |
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geo envir |
spellingShingle |
geo envir 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 |
geo envir |
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 |
Text |
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 |
url |
https://doi.org/10.1016/j.polar.2011.04.001 https://archimer.ifremer.fr/doc/00227/33830/32463.pdf 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 |
Archimer, archive institutionnelle de l'Ifremer Polar Science (1873-9652) (Elsevier Science Bv), 2011-08 , Vol. 5 , N. 2 , P. 211-224 |
op_relation |
doi:10.1016/j.polar.2011.04.001 10670/1.8ojjp5 https://archimer.ifremer.fr/doc/00227/33830/32463.pdf https://archimer.ifremer.fr/doc/00227/33830/ |
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_ |
1766259372681330688 |