Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1993-01-01 |
タイトル |
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タイトル |
ABUNDANCE AND BIOMASS DISTRIBUTION OF MICROBIAL ASSEMBLAGES AT THE SURFACE IN THE OCEANIC PROVINCE OF ANTARCTIC OCEAN (14th Symposium on Polar Biology) |
言語 |
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言語 |
eng |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00005180 |
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ID登録タイプ |
JaLC |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
記事種別(英) |
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en |
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Proceeding |
論文名よみ |
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その他のタイトル |
ABUNDANCE AND BIOMASS DISTRIBUTION OF MICROBIAL ASSEMBLAGES AT THE SURFACE IN THE OCEANIC PROVINCE OF ANTARCTIC OCEAN (14th Symposium on Polar Biology) |
著者名よみ |
イシヤマ, ミチエ
ヒロミ, ジュウロウ
タニムラ, アツシ
カドタ, サダミ
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著者名(英) |
ISHIYAMA, Michie
HIROMI, Juro
TANIMURA, Atsushi
KADOTA, Sadami
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著者所属(英) |
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en |
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Laboratory of Fisheries Oceanography, College of Agriculture and Veterinary Medicine, Nihon University |
著者所属(英) |
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en |
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Laboratory of Fisheries Oceanography, College of Agriculture and Veterinary Medicine, Nihon University |
著者所属(英) |
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en |
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National Institute of Polar Research |
著者所属(英) |
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en |
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Laboratory of Fisheries Oceanography, College of Agriculture and Veterinary Medicine, Nihon University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
During the JARE-32 (the 32nd Japanese Antarctic Research Expedition) cruise, bacterioplankton, autotrophic and heterotrophic nanoplankton (2-20 μm in length), and microzooplankton (15-250 μm in length) were collected from the surface of the Indian and Australian sectors of Antarctic Ocean. The average abundance of bacterioplankton was 4.56×10^4 cells/ml, and the biomass was 0.25 mg C/m^3. The values of the autotrophic nanoplankton were 0.5×10^3 cells/ml and 2.27 mg C/m^3, respectively. There were 1.02×10^2 cells/ml of heterotrophic nanoplankton in abundance, and its biomass was 0.71 mg C/m^3. About 30% of the biomass of this assemblage was choanoflagellates. Average abundance and biomass of the microzooplankton were 1.62×10^3 inds./l and 3.78 mg C/m^3, respectively. A large portion of the abundance and biomass of microzooplankton was oligotrichs. Protozoans within micro-sized (15-250 μm) category which ingest preys similar to or larger than themselves were found where biomass ratio of nanoplankton to microzooplankton was low (<0.3). This may indicate adaptability of the protozoan to a severe food environment. The biomass (log-scale) decreased linearly with increasing individual body weight (log-scale) with a slope of -0.21. This result suggests that smaller protozoans such as heterotrophic nanoplankton and oligotrichs have an important role in the Antarctic Ocean's energy flow. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA10819561 |
書誌情報 |
Proceedings of the NIPR Symposium on Polar Biology
巻 6,
p. 6-20,
発行日 1993-01
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出版者 |
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出版者 |
National Institute of Polar Research |