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Surface nutrient regime and bottom hypoxia in Manila Bay during the southwest monsoon
http://hdl.handle.net/10911/0002000023
http://hdl.handle.net/10911/0002000023f9bc8d5d-670a-47af-93f8-52ed3854d1da
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
pulanktonkogakukenkyu0_3_05.pdf (1.1 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
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| 公開日 | 2023-09-27 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Surface nutrient regime and bottom hypoxia in Manila Bay during the southwest monsoon | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Manila Bay | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | nutrient | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | chlorophyll a | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | hypo ia | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | southwest monsoon | |||||||||||
| 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 | |||||||||||
| 著者 |
Ken, Furuya
× Ken, Furuya
× Mari, Yasuda
× Valeriano M., Borja
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | We e amined the surface nutrient regime and hypo ia in Manila Bay, Philippines, during the southwest monsoon along a transect from off Limay, Bataan Peninsula, to Metro Ma nila. The water column showed stratification, with warm, less saline water in the top 10 meters overlying cold, saline bottom water. Hypo ia was present in the bottom waters along the entire transect, and ano ic conditions were observed off Manila. Ammonium concentrations ranged from 6.7 to 40.2 µM, e ceeding those of nitrate and nitrite, both of which were nearly depleted at almost all stations e cept off-Manila, with levels below 0.1 µM. Phosphate varied from 0.1 to 1.9 µM, resulting in a stoichiometrically nitrogen-rich condition at the surface, with N:P ratios ranging from 17.1 to 149.7 and an average of 37.4. This is in contrast to the phosphate-rich con ditions reported during the northeast monsoon period. A plume with high nutrient concentrations and high chlorophyll a was observed off Manila, indicating freshwater inflow from sewage and the Pasig River. Diatoms, including the Skeletonema costatum comple and Chaetoceros spp., were abundant, and these eutrophic conditions likely favored the occurrence of green Noctiluca, while it was not observed during our study. | |||||||||||
| 言語 | en | |||||||||||
| 書誌情報 |
プランクトン工学研究 号 3, p. 47-50, 発行日 2023-06-26 |
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| 出版者 | ||||||||||||
| 出版者 | 創価大学プランクトン工学研究所 | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||
| 収録物識別子 | 24364878 | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
