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| The sinking of the phytoplankton community and its contribution to seasonal hypoxia in the Changjiang (Yangtze River) estuary and its adjacent waters | |
Li, Zhao1,2; Song, Shuqun1; Li, Caiwen1,2 ; Yu, Zhiming1,2
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| 2018-08-31 | |
| 发表期刊 | ESTUARINE COASTAL AND SHELF SCIENCE
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| ISSN | 0272-7714 |
| 卷号 | 208页码:170-179 |
| 文章类型 | Article |
| 摘要 | The phytoplankton sinking rates and the annual variations of dissolved oxygen (DO) were studied as part of a multi-disciplinary investigation in the Changjiang (Yangtze River) Estuary (CE) and its adjacent waters from February 2015 to January 2016. The sinking rates of phytoplankton ranged from 0.02 to 3.49 m d(-1), determined with the homogeneous sample method SETCOL. There was clear correlation between sinking rate and the phytoplankton composition. The diatom-dominated community had higher sinking rates than the dinoflagellate-dominated community, and the variation in DO concentration indicated a close relationship with the blooming and senescence of phytoplankton. Low DO (< 3 mg L-1) or hypoxic (< 2 mg L-1) zones were observed in near-bottom waters between July and October. Hypoxia reached its maximum in October, with a low DO zone covering approximately 4500 km(2) of the survey area. The zones of lowest DO in near-bottom water were closely associated with zones of the highest chlorophyll a (Chl a) and the highest phytoplankton sinking rates in the upper layer. The present study presents straightforward evidence on the formation of low DO and hypoxia in near-bottom waters and its correlation with sinking of the phytoplankton community, and provides useful insight to reveal the formation mechanism of seasonal hypoxia in the CE and its adjacent waters. |
| 关键词 | Phytoplankton Community structure Sinking rates Hypoxia SETCOL method |
| 学科领域 | Marine & Freshwater Biology ; Oceanography |
| DOI | 10.1016/j.ecss.2018.05.007 |
| 收录类别 | SCIE |
| 语种 | 英语 |
| WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
| WOS记录号 | WOS:000437553400017 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/157543 |
| 专题 | 海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 第一作者单位 | 海洋生态与环境科学重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Zhao,Song, Shuqun,Li, Caiwen,et al. The sinking of the phytoplankton community and its contribution to seasonal hypoxia in the Changjiang (Yangtze River) estuary and its adjacent waters[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2018,208:170-179. |
| APA | Li, Zhao,Song, Shuqun,Li, Caiwen,&Yu, Zhiming.(2018).The sinking of the phytoplankton community and its contribution to seasonal hypoxia in the Changjiang (Yangtze River) estuary and its adjacent waters.ESTUARINE COASTAL AND SHELF SCIENCE,208,170-179. |
| MLA | Li, Zhao,et al."The sinking of the phytoplankton community and its contribution to seasonal hypoxia in the Changjiang (Yangtze River) estuary and its adjacent waters".ESTUARINE COASTAL AND SHELF SCIENCE 208(2018):170-179. |
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