Diatom assemblages in the surface water of the Indian Sector of the Antarctic Surface Water in summer of 1999/2000
Abundance and species composition of diatom assemblages in surface water of the Indian Sector of the Antarctic Surface Water of the Southern Ocean were examined using samples gathered during the JARE-41 Cruise of the icebreaker Shirase in the summer of 1999/2000. On the westward leg (Leg 1), abundan...
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School of Agricultural Science, Tohoku University
2005
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ftnipr:oai:nipr.repo.nii.ac.jp:00006220 2023-05-15T13:41:38+02:00 Diatom assemblages in the surface water of the Indian Sector of the Antarctic Surface Water in summer of 1999/2000 Yasushi Gomi Haruko Umeda Mitsuo Fukuchi Akira Taniguchi 2005-01-01 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6220 http://id.nii.ac.jp/1291/00006220/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6220&item_no=1&attribute_id=18&file_no=1 en eng School of Agricultural Science, Tohoku University Korea Polar Research Institute National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6220 http://id.nii.ac.jp/1291/00006220/ AA11327019 Polar bioscience, 18, 1-15(2005-01-01) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6220&item_no=1&attribute_id=18&file_no=1 diatom assemblages sea ice dynamics Antarctic Surface Water cluster analysis spatial and temporal variations Departmental Bulletin Paper P(論文) 2005 ftnipr 2023-03-18T20:23:29Z Abundance and species composition of diatom assemblages in surface water of the Indian Sector of the Antarctic Surface Water of the Southern Ocean were examined using samples gathered during the JARE-41 Cruise of the icebreaker Shirase in the summer of 1999/2000. On the westward leg (Leg 1), abundance of the diatom assemblage was geographically rather uniform, while species composition was different geographically in mosaic manner. Dominant species on Leg 1 were the pennate Pseudo-nitzschia spp. and the centric Dactyliosolen tenuijunctus, Chaetoceros sp. cf. dichaeta and Chaetoceros neglectus. On the eastward leg (Leg 2), abundance and species composition were different east and west of 60°E. The community to the west was large in abundance and dominated by D. tenuijunctus, while that to the east was small and dominated by the pennate Fragilariopsis species. These diatom assemblages were grouped into four clusters on Leg 1 and three on Leg 2. Mosaic distribution of the clusters was again evident on Leg 1, while rather simple east-west difference was the case on Leg 2. These geographical variations seem to be affected by local sea ice dynamics. Report Antarc* Antarctic Polar bioscience Sea ice Southern Ocean National Institute of Polar Research Repository, Japan Antarctic Indian Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
diatom assemblages sea ice dynamics Antarctic Surface Water cluster analysis spatial and temporal variations |
spellingShingle |
diatom assemblages sea ice dynamics Antarctic Surface Water cluster analysis spatial and temporal variations Yasushi Gomi Haruko Umeda Mitsuo Fukuchi Akira Taniguchi Diatom assemblages in the surface water of the Indian Sector of the Antarctic Surface Water in summer of 1999/2000 |
topic_facet |
diatom assemblages sea ice dynamics Antarctic Surface Water cluster analysis spatial and temporal variations |
description |
Abundance and species composition of diatom assemblages in surface water of the Indian Sector of the Antarctic Surface Water of the Southern Ocean were examined using samples gathered during the JARE-41 Cruise of the icebreaker Shirase in the summer of 1999/2000. On the westward leg (Leg 1), abundance of the diatom assemblage was geographically rather uniform, while species composition was different geographically in mosaic manner. Dominant species on Leg 1 were the pennate Pseudo-nitzschia spp. and the centric Dactyliosolen tenuijunctus, Chaetoceros sp. cf. dichaeta and Chaetoceros neglectus. On the eastward leg (Leg 2), abundance and species composition were different east and west of 60°E. The community to the west was large in abundance and dominated by D. tenuijunctus, while that to the east was small and dominated by the pennate Fragilariopsis species. These diatom assemblages were grouped into four clusters on Leg 1 and three on Leg 2. Mosaic distribution of the clusters was again evident on Leg 1, while rather simple east-west difference was the case on Leg 2. These geographical variations seem to be affected by local sea ice dynamics. |
format |
Report |
author |
Yasushi Gomi Haruko Umeda Mitsuo Fukuchi Akira Taniguchi |
author_facet |
Yasushi Gomi Haruko Umeda Mitsuo Fukuchi Akira Taniguchi |
author_sort |
Yasushi Gomi |
title |
Diatom assemblages in the surface water of the Indian Sector of the Antarctic Surface Water in summer of 1999/2000 |
title_short |
Diatom assemblages in the surface water of the Indian Sector of the Antarctic Surface Water in summer of 1999/2000 |
title_full |
Diatom assemblages in the surface water of the Indian Sector of the Antarctic Surface Water in summer of 1999/2000 |
title_fullStr |
Diatom assemblages in the surface water of the Indian Sector of the Antarctic Surface Water in summer of 1999/2000 |
title_full_unstemmed |
Diatom assemblages in the surface water of the Indian Sector of the Antarctic Surface Water in summer of 1999/2000 |
title_sort |
diatom assemblages in the surface water of the indian sector of the antarctic surface water in summer of 1999/2000 |
publisher |
School of Agricultural Science, Tohoku University |
publishDate |
2005 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6220 http://id.nii.ac.jp/1291/00006220/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6220&item_no=1&attribute_id=18&file_no=1 |
geographic |
Antarctic Indian Southern Ocean The Antarctic |
geographic_facet |
Antarctic Indian Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Polar bioscience Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Polar bioscience Sea ice Southern Ocean |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6220 http://id.nii.ac.jp/1291/00006220/ AA11327019 Polar bioscience, 18, 1-15(2005-01-01) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6220&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766153210051952640 |