Vertical distribution of size fractionated phytoplankton chlorophyll in the Indian sector of the Southern Ocean in summer(1985/86)
スポンサーリンク
概要
- 論文の詳細を見る
During the icebreaker SHIRASE cruise of the 27th Japanese Antarctic Research Expedition (JARE-27; 1985/86), vertical profiles of phytoplankton chlorophyll a concentration in the upper 200m of the water column were observed at 12 stations in the Southern Ocean and at 3 stations in the subtropical water from December 1985 to March 1986. High phytoplankton chlorophyll standing crops (ca. 370mg m^<-2> in December and 330mg m^<-2> in February) were observed in Breid Bay, Antarctica. In other stations of the Antarctic Ocean, the standing crops were less than 52mg m^<-2>. Size fractionation studies revealed that net-phytoplankton (>20μm) was the dominant fraction of total chlorophyll a during the summer bloom in Breid Bay. In Antarctic waters, the high contributions of the net-phytoplankton fraction corresponded to high total biomass. And also, contribution of the net-phytoplankton to the total phytoplankton was supposed to be controlled by the length of the ice-free period. Considering the high phytoplankton growth rates under the nutrient rich condition, duration under optimum light condition and water stability appear to be important factors affecting the phytoplankton crops in the Antarctic Ocean in summer.
- 国立極地研究所の論文
著者
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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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TANIMURA Atsushi
National Institute of Polar Research
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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 M
National Inst. Polar Res. Tokyo
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Fukuchi Mitsuo
National Inst. Of Polar Res. Kaga Tokyo 173-8515 Jpn
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Hattori H
Department Of Marine Sciences And Technology School Of Engineering Hokkaido Tokai University
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Hattori Hiroshi
Laboratory of Oceanography, Faculty of Agriculture, Tohoku University
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Tanimura A
Kyoto Prefectural Univ. Kyoto Jpn
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Hattori Hiroshi
Department Of Biological Science And Engineering Tokai University Minami-sawa Minami-ku Sapporo 005-
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Fukuchi Mitsuo
National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa Tokyo 190-8518 Jpn
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Tanimura Atsushi
National Institute of Polar Resarch
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- ACKNOWLEDGMENTS
- OBSERVATION HUT
- FREQUENCY OF OBSERVATION
- PREFACE
- Foreword
- Distribution of nano-, micro- and netplankton chlorophyll in the surface water of the Indian sector of the Southern Ocean, 1985/86
- Long-term observation of zooplankton biomass in the Indian Ocean sector of the Southern Ocean
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- CEAMARC, the Collaborative East Antarctic Marine Census for the Census of Antarctic Marine Life (IPY # 53): An overview
- 2. Vertical profiles of phytoplankton pigments
- 1. Geographical variations of chlorophyll a in the surface water
- Report on the phytoplankton pigments measured during the JARE-31 cruise to Syowa Station, Antarctica, November 1989 to March 1990(Marine Biology 23)
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- Marine biological data of BIOMASS programme at Syowa Station in the 1982 winter(JARE-23)(Marine Biology 6)