Resting cells of microorganisms in the 20-100 μm fraction of marine sediments in an Antarctic coastal area
スポンサーリンク
概要
- 論文の詳細を見る
We investigated the morphological features, vertical sinking fluxes, and number densities of the resting cells of ice-associated microorganisms in the 20–100 μm fraction of natural marine sediments collected from ice-covered and ice-free areas around Syowa Station, Lützow-Holm Bay, East Antarctica. We identified the resting cells of various taxonomic groups, including the spores of a diatom, cysts of three dinoflagellates, cysts of five oligotrich ciliates, and the eggs of a mesozooplankton. This is the first report of oligotrich ciliate cysts from Antarctic waters. The resting spores of Thalassiosira australis (diatom), cysts of Polarella glacialis (dinoflagellate), and egg type 1 sink to the bottom sediment during summer. Our results suggest that some planktonic and ice-associated microorganisms in Antarctic coastal areas send their resting cells to the bottom sediments as seed populations for the following generation.
- 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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Ichinomiya Mutsuo
Laboratory of Aquatic Science and Consultant
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Nakamachi Miwa
Tohoku National Fisheries Research Institute, Fisheries Research Agency
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Taniguchi Akira
Tokyo University of Agriculture Okhotsk
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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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Nakamachi Miwa
Tohoku National Fisheries Research Institute Fisheries Research Agency
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Fukuchi Mitsuo
National Inst. Of Polar Res. Kaga Tokyo 173-8515 Jpn
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Taniguchi Akira
Tokyo University Of Agriculture
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Fukuchi Mitsuo
National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa Tokyo 190-8518 Jpn
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- PART 2. DATA ON PLANKTON SAMPLING
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- ACKNOWLEDGMENTS
- OBSERVATION HUT
- FREQUENCY OF OBSERVATION
- PREFACE
- Foreword
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- 2. Vertical profiles of phytoplankton pigments
- 1. Geographical variations of chlorophyll a in the surface water
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- Marine biological data of BIOMASS programme at Syowa Station in the 1982 winter(JARE-23)(Marine Biology 6)