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Temporal changes in chlorophyll a concentrations and bacterial, viral, and heterotrophic nanoflagellate abundances in the coastal zone of Sagami Bay, Japan: implications of top-down and bottom-up effects
https://doi.org/10.15083/00040701
https://doi.org/10.15083/0004070144a17049-29b4-440b-91e1-f0029526bfe2
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
CMS330104.pdf (875.1 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-05-28 | |||||
| タイトル | ||||||
| タイトル | Temporal changes in chlorophyll a concentrations and bacterial, viral, and heterotrophic nanoflagellate abundances in the coastal zone of Sagami Bay, Japan: implications of top-down and bottom-up effects | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Bacteria | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | bottom-up | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | chlorophyll a | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | HNF | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | top-down | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | virus | |||||
| 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 | 10.15083/00040701 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
BAKI, Mohammad Abdul
× BAKI, Mohammad Abdul× MOTEGI, Chiaki× SHIBATA, Akira× FUKUDA, Hideki× SHIMODE, Shinji× KIKUCHI1, Tomohiko |
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| 著者所属 | ||||||
| 値 | Graduate School of Environment and Information Science, Yokohama National University, Japan | |||||
| 著者所属 | ||||||
| 値 | Ecological Research Center, Kyoto University, Japan | |||||
| 著者所属 | ||||||
| 値 | Ocean Research Institute, University of Tokyo, Japan | |||||
| 著者所属 | ||||||
| 値 | International Coastal Research Center, Ocean Research Institute, University of Tokyo, Japan | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Spatio-temporal distribution patterns of bacterial abundance (BA) and production (BP), heterotrophic nanoflagellate abundance (HNFA), viral abundance (VA), and chlorophyll a concentrations (Chl a) were examined by annual monthly sampling of water from the surface to 100 m depth in a coastal area of Sagami Bay, Japan to investigate the changes of top-down and bottom-up effects on bacterial abundance. During the colder period (November to March), BA and BP were not significantly correlated through the water column, indicating that top-down effects controlled bacterial abundance. In contrast, BA was significantly positively correlated with BP during the warmer period (April to October). The ratio of the estimated potential grazing rate of nanoflagellates to BP during the colder period tended to be greater than that during the warmer period. The change of BA/HNFA suggested that HNF populations did not immediately reduce BA as much as might have been expected during the warmer period. The low values of BA/HNFA during the warmer period also suggested that predation effects were more important in regulating the population dynamics of HNF relative to bottom-up control by the bacterial food supply. | |||||
| 書誌情報 |
Coastal marine science 巻 33, 号 1, p. 29-38, 発行日 2009-08-20 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 13493000 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11957899 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 452 | |||||
| 出版者 | ||||||
| 出版者 | International Coastal Research Center, Ocean Research Institute, the University of Tokyo | |||||
| 出版者別名 | ||||||
| 値 | 東京大学海洋研究所国際沿岸海洋研究センター | |||||
