WEKO3
アイテム
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Long-term observation of zooplankton biomass in the Indian Ocean sector of the Southern Ocean
https://nipr.repo.nii.ac.jp/records/2324
https://nipr.repo.nii.ac.jp/records/2324c639969d-567c-4fed-97c0-e3819b7609a4
名前 / ファイル | ライセンス | アクション |
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KJ00000012876 (1.3 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1998-07-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Long-term observation of zooplankton biomass in the Indian Ocean sector of the Southern Ocean | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Takahashi, Kazutaka
× Takahashi, Kazutaka× Tanimura, Atsushi× Fukuchi, Mitsuo |
|||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Mean biomass, horizontal distribution and annual fluctuations of zooplankton biomass in the upper layer of the Indian Ocean sector of the Southern Ocean were investigated based on NORPAC standard net samples obtained by the Japanese Antarctic Research Expedition (JARE) for 22 years. The average biomasses in circumpolar areas were 36.4,79.4,133.9 and 172.5mg m^<-3> wet wt in the Subtropical, Sub-Antarctic, Antarctic, and Polar Frontal Zone, respectively. Mean zooplankton biomasses obtained in this study were slightly higher than those previously reported from Indian and other ocean sectors. In the Antarctic Zone, the average biomass decreased from north toward south. Horizontal distribution of surface zooplankton biomass showed high abundance over a relatively extensive area east of Prydz Bay, including the Polar Frontal Zone and Antarctic Zone (90-110°E, 45-65°S). The mean biomass of the Antarctic Zone varied annually. In the Antarctic Zone, the range of the variation was larger in the Northern Oceanic Community area than that in the Main Oceanic Community area, but no similarity in the patterns for the 22 years in the two areas was observed. In the Northern Oceanic community area, cyclic fluctuation of zooplankton biomass every 4-6 years were observed. This periodicity may relate to the physical process, i.e. ice-ocean-atmosphere system of the Southern Ocean. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00733561 | |||||
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 52, p. 209-219, 発行日 1998-07 |