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Bucket sampling from 0 m and pump sampling from 8 m depth were conducted for the surface water. A total of 75 pairs of samples were collected along the course of the icebreaker SHIRASE during the cruise of the 27th Japanese Antarctic Research Expedition (JARE-27) from December 1985 to March 1986 for observing geographical distribution of phytoplankton stock and for evaluating the effectiveness of the pump system. Chlorophyll a concentration in the surface water was high at the southern margin of the Subantarctic water (52-55°S) reaching more than 1.32 μgl^\u003c-1\u003e (December) and more than 0.59 μgl^\u003c-1\u003e (February to March). Chlorophyll a concentration in the Indian sector of the Antarctic water varied geographically; high in the eastern offing of Enderby Land and low in the western offing. The standing stock of nanoplankton (\u003c5 μm) and microplankton (5-20 μm) was constant at 0.12±0.09 and 0.03±0.03 μgl^\u003c-1\u003e, respectively. Netplankton fraction (\u003e20 μm) was higher than smaller fractions (0.18±0.28 μgl^\u003c-1\u003e). Regional variations of the total phytoplankton chlorophyll stock are mainly associated with variations in netplankton fraction stock. No significant difference of chlorophyll a concentration between the bucket-sampled water and the pumped-up water was detected by statistical analysis. 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Distribution of nano-, micro- and netplankton chlorophyll in the surface water of the Indian sector of the Southern Ocean, 1985/86
https://doi.org/10.15094/00005045
https://doi.org/10.15094/00005045d9348cd7-a2f2-4959-bc9a-a05386a61d5b
名前 / ファイル | ライセンス | アクション |
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KJ00000036813 (1.4 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1989-09-01 | |||||
タイトル | ||||||
タイトル | Distribution of nano-, micro- and netplankton chlorophyll in the surface water of the Indian sector of the Southern Ocean, 1985/86 | |||||
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 | |||||
ID登録 | ||||||
ID登録 | 10.15094/00005045 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Hattori, Hiroshi
× Hattori, Hiroshi× Fukuchi, Mitsuo |
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著者所属(英) | ||||||
en | ||||||
Laboratory of Oceanography, Faculty of Agriculture, Tohoku University | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Size fractionation of phytoplankton stock in the surface water was studied in the Indian sector of the Southern Ocean. Bucket sampling from 0 m and pump sampling from 8 m depth were conducted for the surface water. A total of 75 pairs of samples were collected along the course of the icebreaker SHIRASE during the cruise of the 27th Japanese Antarctic Research Expedition (JARE-27) from December 1985 to March 1986 for observing geographical distribution of phytoplankton stock and for evaluating the effectiveness of the pump system. Chlorophyll a concentration in the surface water was high at the southern margin of the Subantarctic water (52-55°S) reaching more than 1.32 μgl^<-1> (December) and more than 0.59 μgl^<-1> (February to March). Chlorophyll a concentration in the Indian sector of the Antarctic water varied geographically; high in the eastern offing of Enderby Land and low in the western offing. The standing stock of nanoplankton (<5 μm) and microplankton (5-20 μm) was constant at 0.12±0.09 and 0.03±0.03 μgl^<-1>, respectively. Netplankton fraction (>20 μm) was higher than smaller fractions (0.18±0.28 μgl^<-1>). Regional variations of the total phytoplankton chlorophyll stock are mainly associated with variations in netplankton fraction stock. No significant difference of chlorophyll a concentration between the bucket-sampled water and the pumped-up water was detected by statistical analysis. This reveals that the pumped-up water is sufficient for chlorophyll analysis in the routine works of marine biological program of JARE. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10819561 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Polar Biology 巻 2, p. 16-25, 発行日 1989-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |