Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise
During the 8th Antarctic Expedition of the R/V Kaiyo Maru of the Japan Fisheries Agency, October 1999 to March 2000,a Continuous Plankton Recorder (CPR) was used to investigate zooplankton composition and abundance in the surface of the Indian sector of Southern Ocean between South Africa and Antarc...
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Department of Bioengineering, Soka University/National Research Institute of Far Seas Fisheries/Department of Bioengineering, Soka University/Australian Antarctic Division/National Institute of Polar Research/Department of Bioengineering, Soka University
2002
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ftnipr:oai:nipr.repo.nii.ac.jp:00006187 2023-05-15T13:46:39+02:00 Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise Kunio T. Takahashi So Kawaguchi Masaki Kobayashi Graham W. Hosie Mitsuo Fukuchi Tatsuki Toda 2002-02 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6187 http://id.nii.ac.jp/1291/00006187/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6187&item_no=1&attribute_id=18&file_no=1 en eng Department of Bioengineering, Soka University/National Research Institute of Far Seas Fisheries/Department of Bioengineering, Soka University/Australian Antarctic Division/National Institute of Polar Research/Department of Bioengineering, Soka University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6187 http://id.nii.ac.jp/1291/00006187/ AA11327019 Polar bioscience, 15, 97-107(2002-02) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6187&item_no=1&attribute_id=18&file_no=1 Continuous Plankton Recorder (CPR) zooplankton Sub-Antarctic Front (SAF) Polar Frontal Zone (PFZ) Antarctic Zone (AZ) Departmental Bulletin Paper P(論文) 2002 ftnipr 2023-03-04T20:18:35Z During the 8th Antarctic Expedition of the R/V Kaiyo Maru of the Japan Fisheries Agency, October 1999 to March 2000,a Continuous Plankton Recorder (CPR) was used to investigate zooplankton composition and abundance in the surface of the Indian sector of Southern Ocean between South Africa and Antarctica. Total zooplankton abundance ranged from 0 to 432 individuals/segment (a 5 nautical miles of the surface towing) (Mean±SD=69.7±83.5). Zooplankton abundance tended to be higher in the high latitudes than the Sub-Antarctic Front (SAF). Opposite correlations were observed between zooplankton and seawater temperature (negative), salinity (positive) and in vivo fluorescence value (positive) reflecting the higher abundance of zooplankton found in the cooler waters south of the SAF, which also have higher salinities and phytoplankton. Among twenty-nine species/taxa identified, cyclopoid copepod Oithona spp. were found throughout the transect, and accounted for 53.3% of total zooplankton abundance. Cluster analysis based on seventeen dominant zooplankton species/taxa revealed two groups and three ungrouped individual species/taxa at the 84% dissimilarity level. On the other hand, the cluster analysis based on the samples obtained in a 5 nautical miles indicated two major distinctive zooplankton community groups at 89% dissimilarity level. The main group included most segments in the Polar Frontal Zone (PFZ : region between SAF and the Polar Front) and Antarctic Zone (AZ : south of the Polar Front) with high zooplankton abundance while the second mainly group comprised lower latitude segment with low abundance (<100 individuals/segment). Report Antarc* Antarctic Antarctica Polar bioscience 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 |
Continuous Plankton Recorder (CPR) zooplankton Sub-Antarctic Front (SAF) Polar Frontal Zone (PFZ) Antarctic Zone (AZ) |
spellingShingle |
Continuous Plankton Recorder (CPR) zooplankton Sub-Antarctic Front (SAF) Polar Frontal Zone (PFZ) Antarctic Zone (AZ) Kunio T. Takahashi So Kawaguchi Masaki Kobayashi Graham W. Hosie Mitsuo Fukuchi Tatsuki Toda Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise |
topic_facet |
Continuous Plankton Recorder (CPR) zooplankton Sub-Antarctic Front (SAF) Polar Frontal Zone (PFZ) Antarctic Zone (AZ) |
description |
During the 8th Antarctic Expedition of the R/V Kaiyo Maru of the Japan Fisheries Agency, October 1999 to March 2000,a Continuous Plankton Recorder (CPR) was used to investigate zooplankton composition and abundance in the surface of the Indian sector of Southern Ocean between South Africa and Antarctica. Total zooplankton abundance ranged from 0 to 432 individuals/segment (a 5 nautical miles of the surface towing) (Mean±SD=69.7±83.5). Zooplankton abundance tended to be higher in the high latitudes than the Sub-Antarctic Front (SAF). Opposite correlations were observed between zooplankton and seawater temperature (negative), salinity (positive) and in vivo fluorescence value (positive) reflecting the higher abundance of zooplankton found in the cooler waters south of the SAF, which also have higher salinities and phytoplankton. Among twenty-nine species/taxa identified, cyclopoid copepod Oithona spp. were found throughout the transect, and accounted for 53.3% of total zooplankton abundance. Cluster analysis based on seventeen dominant zooplankton species/taxa revealed two groups and three ungrouped individual species/taxa at the 84% dissimilarity level. On the other hand, the cluster analysis based on the samples obtained in a 5 nautical miles indicated two major distinctive zooplankton community groups at 89% dissimilarity level. The main group included most segments in the Polar Frontal Zone (PFZ : region between SAF and the Polar Front) and Antarctic Zone (AZ : south of the Polar Front) with high zooplankton abundance while the second mainly group comprised lower latitude segment with low abundance (<100 individuals/segment). |
format |
Report |
author |
Kunio T. Takahashi So Kawaguchi Masaki Kobayashi Graham W. Hosie Mitsuo Fukuchi Tatsuki Toda |
author_facet |
Kunio T. Takahashi So Kawaguchi Masaki Kobayashi Graham W. Hosie Mitsuo Fukuchi Tatsuki Toda |
author_sort |
Kunio T. Takahashi |
title |
Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise |
title_short |
Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise |
title_full |
Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise |
title_fullStr |
Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise |
title_full_unstemmed |
Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise |
title_sort |
zooplankton distribution patterns in relation to the antarctic polar front zones recorded by continuous plankton recorder (cpr) during 1999/2000 kaiyo maru cruise |
publisher |
Department of Bioengineering, Soka University/National Research Institute of Far Seas Fisheries/Department of Bioengineering, Soka University/Australian Antarctic Division/National Institute of Polar Research/Department of Bioengineering, Soka University |
publishDate |
2002 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6187 http://id.nii.ac.jp/1291/00006187/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6187&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 Antarctica Polar bioscience Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Polar bioscience Southern Ocean |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6187 http://id.nii.ac.jp/1291/00006187/ AA11327019 Polar bioscience, 15, 97-107(2002-02) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6187&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766245001206956032 |