Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise
スポンサーリンク
概要
- 論文の詳細を見る
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).
- 国立極地研究所の論文
著者
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Hosie Graham
Australian Antarctic Division
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Takahashi Kunio
Faculty of Engineering, Soka University, 1-236 Tangi-cho, Hachioji, Tokyo 192-8577, Japan
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Fukuchi Mitsuo
National Institute of Polar Research, 10-3 Midori-cho, Tachikawa-shi, Tokyo 190-8518, Japan
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TODA Tatsuki
Department of Environmental Engineering for Symbiosis, Faculty of Engineering, Soka University
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KOBAYASHI Masaki
Department of Internal Medicine, Tokyo Medical University, Kasumigaura Hospital
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Hosie Graham
Australian Government Antarctic Division Channel Highway Kingston Tasmania 7050 Australia
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G.w. Hosie
Australian Government Antarctic Division Channel Highway Kingston Tasmania 7050 Australia
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Toda Tatsuki
Faculty Of Engineering Soka University 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
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戸田 龍樹
創価大学工学部環境共生工学科
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Toda Tatsuki
Facuity Of Engineering Soka University
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戸田 龍樹
創価大学工学部
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Kawaguchi So
Australian Government Antarctic Division Channel Highway Kingston Tasmania 7050 Australia
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Kawaguchi So
National Research Institute Of Far Seas Fisheries
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TAKAHASHI Kunio
Department of Mechanical and Intelligent Systems Engineering, Faculty of Engineering, Tokyo Institut
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Takahashi Kunio
Faculty Of Engineering Soka University 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
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Kobayashi Masaki
Department Of Internal Medicine Tokyo Medical University Kasumigaura Hospital
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Hosie G
Australian Government Antarctic Division Channel Highway Kingston Tasmania 7050 Australia
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戸田 龍樹
創価大学工学部 環境共生工学科
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Fukuchi M
National Institute Of Polar Research 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Japan
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Fukuchi Mitsuo
National Inst. Of Polar Res. Kaga Tokyo 173-8515 Jpn
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Toda Tatsuki
Department Of Ecological Engineering For Symbiosis Faculty Of Engineering Soka University
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Takahashi Kunio
Department Of International Development Engineering Tokyo Institute Of Technology
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Fukuchi Mitsuo
National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa Tokyo 190-8518 Jpn
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Kobayashi Masaki
Department Of Chemical Engineering On Biological Environment Lecturer
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Kobayashi Masaki
Faculty Of Engineering Soka University
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Kobayashi Masaki
Department Of Biology School Of Education Waseda University
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Kobayashi Masaki
Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Josai University
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