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アイテム
Nutrient availability controls phytoplankton populations and their nutritional strategy in the eastern Indian Ocean
http://hdl.handle.net/10069/0002003506
http://hdl.handle.net/10069/0002003506395d3b29-f20b-4a8b-8630-802251ad6302
| 名前 / ファイル | ライセンス | アクション |
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PO240_103628.pdf (1.1 MB)
Download is available from 2027/11/26.
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| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||
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| 公開日 | 2025-12-11 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Nutrient availability controls phytoplankton populations and their nutritional strategy in the eastern Indian Ocean | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Flow cytometry | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Mixotrophy | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Surface mixed layer | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Nutrients | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | eastern Indian Ocean | |||||||||||
| 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 | journal article | |||||||||||
| 著者 |
Sato, Mitsuhide
× Sato, Mitsuhide
× Hashihama, Fuminori
× Liu, Hongbin
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | The pico- and nanophytoplankton communities in the eastern Indian Ocean during the fall–winter inter-monsoon season were analyzed using flow cytometry to clarify the environmental factors that control the horizontal and vertical distributions of phytoplankton. The average Synechococcus abundance within the surface mixed layer showed a significant positive correlation with the temperature and nitrate + nitrite (N + N) concentration. Similarly, the cell concentration of eukaryotic phytoplankton in the surface mixed layer was correlated with temperature but did not decrease with decreasing N + N availability. Instead, the proportion of potentially phagotrophic eukaryotic phytoplankton, assessed using a fluorescent probe, increased with decreasing N + N concentrations in the surface mixed layer. This suggested that nitrogen uptake from particles can compensate for the decrease in inorganic nitrogen nutrients in the mixed layer, which may help eukaryotic phytoplankton maintain their biomass in oligotrophic areas. Phagotrophy by eukaryotic phytoplankton in this area may facilitate their growth, with photosynthesis driven by high irradiance within the surface mixed layer, which is depleted of nitrogen. Inter-provincial variations in cell concentrations at the subsurface peak were smaller than those within the surface mixed layer. The cell concentration of Synechococcus at the peak was positively correlated with temperature. By contrast, the peak cell concentration of eukaryotes was positively correlated with light intensity at that depth, suggesting a potential light limitation. The lower potential phagotrophy in eukaryotic phytoplankton with depth suggested that they do not use phagotrophy to compensate for diminished photosynthetic carbon acquisition. | |||||||||||
| 言語 | en | |||||||||||
| 書誌情報 |
en : Progress in Oceanography 巻 240, p. art. no. 103628, 発行日 2025-11-26 |
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| 出版者 | ||||||||||||
| 出版者 | Elsevier Ltd | |||||||||||
| 言語 | en | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 00796611 | |||||||||||
| DOI | ||||||||||||
| 関連タイプ | isVersionOf | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | https://doi.org/10.1016/j.pocean.2025.103628 | |||||||||||
| 権利 | ||||||||||||
| 権利情報 | © 2025 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/. | |||||||||||
| 言語 | en | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | AM | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||
| 引用 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | Progress in Oceanography, 240, art. no. 103628; 2025 | |||||||||||
| 言語 | en | |||||||||||
