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1978-1979年, 南極海インド洋区におけるクロロフィルα分布
https://doi.org/10.15094/00008290
https://doi.org/10.15094/000082905991a41d-764b-440e-8d68-bcdbaa7cee99
名前 / ファイル | ライセンス | アクション |
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KJ00000139504 (3.9 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1982-02-01 | |||||
タイトル | ||||||
タイトル | 1978-1979年, 南極海インド洋区におけるクロロフィルα分布 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Chlorophyllα distribution in the Indian sector of the Antarctic Ocean in 1978-1979 | |||||
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 | 10.15094/00008290 | |||||
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) | |||||
論文名よみ | ||||||
その他のタイトル | 1978-1979 ネン, ナンキョクカイ インドヨウ ク ニ オケル クロロフィルα ブンプ | |||||
著者名(日) |
福地, 光男
× 福地, 光男× 田村, 清一 |
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著者名(英) |
Fukuchi, Mitsuo
× Fukuchi, Mitsuo× Tamura, Seiichi |
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著者所属(日) | ||||||
国立極地研究所 | ||||||
著者所属(日) | ||||||
東北大学理学部附属臨海実験所 | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research | ||||||
著者所属(英) | ||||||
en | ||||||
Marine Biological Station of Tohoku University | ||||||
抄録(日) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 1978-1979年, 第20次日本南極地域観測隊にて, 南極海インド洋区におけるクロロフィルa量の水平・垂直分布を調査した。12月中旬に東経110度から90度へかけ南緯34度から60度への南下航路上, 12月下旬~1月上旬に南緯60度以南域を東経90度から39度へかけての西方航路上, および2月下旬~3月上旬に東経40度から51度へかけ南緯65度から34度への北上航路上において, 2時間間隔を含む表面観測を行った。北上航路上の南緯52度以南域では, 6観測点にて水深500mまでの垂直分布を調べた。南下航路上では南極収束線域に高クロロフィルa量(1.0mg/m^3以上)がみられたが, 北上航路上では亜熱帯収束線域に0.5mg/m^3以上の値がみられた。両航路上における表面クロロフィルa量の緯度変化の相異から, 植物プランクトンの季節変動が示唆された。西方航路上におけるクロロフィルa量の経度変化は, 湧昇現象に関連すると思われた。0-250m水柱内クロロフィルa現存量は, 16.8~39.4mg/m^2であり, 水深50~100m付近に弱い亜表層クロロフィル極大がみられた。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Horizontal and vertical distributions of chlorophyll a in the Indian sector of the Antarctic Ocean were investigated during the 20th Japanese Antarctic Research Expedition in 1978-1979. Surface observations including the two hours interval observation were carried out on the southward leg between 34°S, 110°E and 60°S, 90°E in middle December, on the westward leg between 90°and 39°E south of 60°S in late December to early January, and on the northward leg between 65°S, 40°E and 34°S, 51°E in late February to early March. Vertical observations down to a 500m depth were done at six stations on the northward leg south of 52°S latitude. While high surface chlorophyll a concentrations (more than 1.0mg/m^3) were seen around the Antarctic Convergence on the southward leg, high concentrations more than 0.5mg/m^3 were distributed around the Subtropical Convergence on the northward leg. Difference in the latitudinal variations of surface chlorophyll a between the two legs suggested the seasonal periodicity of phytoplankton. Longitudinal variation on the westward leg seemed to be related with the upwellings of water. Integrated chlorophyll a stocks for a 0-250m water column were in a range of 16.8-39.4mg/m^2 and a weak subsurface chlorophyll a maximum was seen around 50-100m depths. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00181831 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00857289 | |||||
書誌情報 |
南極資料 巻 74, p. 143-162, 発行日 1982-02 |
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国際十進分類法 | ||||||
主題Scheme | UDC | |||||
主題 | 551.46 |