Unusual abundance of appendicularians in the seasonal ice zone(140°E ) of the Southern Ocean
During the 43rd Japanese Antarctic Research Expedition(JARE) cruise on March 10-12 in 2002, NORPAC net samplings at three stations along a south-north transect, ca. 140°E in the Indian sector were conducted to survey zooplankton community structure and abundance in the seasonal ice zone(SIZ) of the...
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National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research
2006
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ftnipr:oai:nipr.repo.nii.ac.jp:00006246 2023-05-15T13:41:38+02:00 Unusual abundance of appendicularians in the seasonal ice zone(140°E ) of the Southern Ocean Megumu Tsujimoto Kunio T. Takahashi Toru Hirawake Mitsuo Fukuchi 2006-01 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6246 http://id.nii.ac.jp/1291/00006246/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6246&item_no=1&attribute_id=18&file_no=1 en eng National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6246 http://id.nii.ac.jp/1291/00006246/ AA11327019 Polar bioscience, 19, 133-141(2006-01) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6246&item_no=1&attribute_id=18&file_no=1 seasonal ice zone(SIZ) Southern Boundary(SB) Appendicularia zooplankton Copepoda Departmental Bulletin Paper P(論文) 2006 ftnipr 2023-03-18T20:23:29Z During the 43rd Japanese Antarctic Research Expedition(JARE) cruise on March 10-12 in 2002, NORPAC net samplings at three stations along a south-north transect, ca. 140°E in the Indian sector were conducted to survey zooplankton community structure and abundance in the seasonal ice zone(SIZ) of the Southern Ocean. A total of fourteen species/taxa were identified from the three stations. While copepods were numerically dominant at two stations(79.9% and 93.1% respectively of total abundance), appendicularians were found to be numerically dominant(84.0% of total abundance) at the southernmost station. This dominance of Appendicularia at this station suggested that Appendicularia is possibly an integral part of the community structure of the zooplankton in the SIZ. The Southern Boundary(SB) on the 140°E transect was found to be located at ~64.30°S and the southernmost station was located south of the SB while the two other stations were located north of the SB. Some species, such as Rhincalanus gigas, Calanus simillimus, Amphipoda, Euphausiacea, and Polychaeta, had distribution patterns that correlated with the position of the SB, therefore the SB is considered important in influencing the distribution of the zooplankton and its community structure in the SIZ. Report Antarc* Antarctic Polar bioscience Southern Ocean Copepods National Institute of Polar Research Repository, Japan Antarctic Indian Southern Ocean |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
seasonal ice zone(SIZ) Southern Boundary(SB) Appendicularia zooplankton Copepoda |
spellingShingle |
seasonal ice zone(SIZ) Southern Boundary(SB) Appendicularia zooplankton Copepoda Megumu Tsujimoto Kunio T. Takahashi Toru Hirawake Mitsuo Fukuchi Unusual abundance of appendicularians in the seasonal ice zone(140°E ) of the Southern Ocean |
topic_facet |
seasonal ice zone(SIZ) Southern Boundary(SB) Appendicularia zooplankton Copepoda |
description |
During the 43rd Japanese Antarctic Research Expedition(JARE) cruise on March 10-12 in 2002, NORPAC net samplings at three stations along a south-north transect, ca. 140°E in the Indian sector were conducted to survey zooplankton community structure and abundance in the seasonal ice zone(SIZ) of the Southern Ocean. A total of fourteen species/taxa were identified from the three stations. While copepods were numerically dominant at two stations(79.9% and 93.1% respectively of total abundance), appendicularians were found to be numerically dominant(84.0% of total abundance) at the southernmost station. This dominance of Appendicularia at this station suggested that Appendicularia is possibly an integral part of the community structure of the zooplankton in the SIZ. The Southern Boundary(SB) on the 140°E transect was found to be located at ~64.30°S and the southernmost station was located south of the SB while the two other stations were located north of the SB. Some species, such as Rhincalanus gigas, Calanus simillimus, Amphipoda, Euphausiacea, and Polychaeta, had distribution patterns that correlated with the position of the SB, therefore the SB is considered important in influencing the distribution of the zooplankton and its community structure in the SIZ. |
format |
Report |
author |
Megumu Tsujimoto Kunio T. Takahashi Toru Hirawake Mitsuo Fukuchi |
author_facet |
Megumu Tsujimoto Kunio T. Takahashi Toru Hirawake Mitsuo Fukuchi |
author_sort |
Megumu Tsujimoto |
title |
Unusual abundance of appendicularians in the seasonal ice zone(140°E ) of the Southern Ocean |
title_short |
Unusual abundance of appendicularians in the seasonal ice zone(140°E ) of the Southern Ocean |
title_full |
Unusual abundance of appendicularians in the seasonal ice zone(140°E ) of the Southern Ocean |
title_fullStr |
Unusual abundance of appendicularians in the seasonal ice zone(140°E ) of the Southern Ocean |
title_full_unstemmed |
Unusual abundance of appendicularians in the seasonal ice zone(140°E ) of the Southern Ocean |
title_sort |
unusual abundance of appendicularians in the seasonal ice zone(140°e ) of the southern ocean |
publisher |
National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research |
publishDate |
2006 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6246 http://id.nii.ac.jp/1291/00006246/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6246&item_no=1&attribute_id=18&file_no=1 |
geographic |
Antarctic Indian Southern Ocean |
geographic_facet |
Antarctic Indian Southern Ocean |
genre |
Antarc* Antarctic Polar bioscience Southern Ocean Copepods |
genre_facet |
Antarc* Antarctic Polar bioscience Southern Ocean Copepods |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6246 http://id.nii.ac.jp/1291/00006246/ AA11327019 Polar bioscience, 19, 133-141(2006-01) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6246&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766153202729746432 |