Characterizing vertical migration of Microcystis aeruginosa and conditions for algal bloom development based on a light-driven migration model
文献类型：期刊论文
| 作者 | Yao B(姚波); Liu QQ(刘青泉) ; Gao, Yong; Cao, Zhixian; Liu, QQ (reprint author), Beijing Inst Technol, Sch Aerosp Engn, Dept Mech, Beijing 100081, Peoples R China.
|
| 刊名 | ECOLOGICAL RESEARCH
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 32期号:6页码:961-969 |
| 关键词 | Vertical Migration Daily-averaged Retention Time Colony Radius Irradiance Mucilage |
| ISSN号 | 0912-3814 |
| DOI | 10.1007/s11284-017-1505-9 |
| 文献子类 | Article |
| 英文摘要 | Light-driven vertical migration is critical in dense aggregation of Microcystis aeruginosa during algal blooms under reduced turbulence conditions in natural water bodies. This study examined the vertical migration characteristics of Microcystis aeruginosa in calm water based on a colony migration model with consideration of cell density change, and demonstrated the effects of mucilage fraction, colony size, irradiance intensity, and water turbidity. The results suggest that colonies with larger radii and under higher irradiance usually had a larger daily averaged retention time at the water surface (DRT). In addition to colony size, mucilage was found to be important in changing the vertical migration behavior of Microcystis colonies, in which increasing mucilage volume fraction can increase the migrating velocity of the colony as well as the length of time it remains at the water surface. Increase of light extinction also favors the aggregation of colonies at the surface. An approximate critical value of 2400 mu mol photons m(2) s(-1) for maximum irradiance was found for persistent algal bloom development under the given simulation conditions. Extremely small colonies exposed to irradiance below the critical value were not likely to migrate to the water surface to form algal blooms. According to the DRT values, three regions with different ranges of irradiance and colony size were proposed as the critical conditions for algal bloom development. Rough comparisons to field observations suggested that these results were reasonable and meaningful, and have the potential to be applied in real cases following further validation by more detailed investigations. |
| 分类号 | Q3 |
| WOS关键词 | CYANOBACTERIUM MICROCYSTIS ; EUTROPHIC LAKE ; SHALLOW LAKE ; SUMMER BLOOM ; PHYTOPLANKTON ; SIMULATION ; COLONIES ; ZOOPLANKTON ; VARIABILITY ; RESERVOIR |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000415248500021 |
| 资助机构 | Special Foundation (Class D) of the "Hundred Talents Program'' of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China(11202217) |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/71942]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Liu, QQ (reprint author), Beijing Inst Technol, Sch Aerosp Engn, Dept Mech, Beijing 100081, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yao B,Liu QQ,Gao, Yong,et al. Characterizing vertical migration of Microcystis aeruginosa and conditions for algal bloom development based on a light-driven migration model[J]. ECOLOGICAL RESEARCH,2017,32(6):961-969. |
| APA | 姚波,刘青泉,Gao, Yong,Cao, Zhixian,&Liu, QQ .(2017).Characterizing vertical migration of Microcystis aeruginosa and conditions for algal bloom development based on a light-driven migration model.ECOLOGICAL RESEARCH,32(6),961-969. |
| MLA | 姚波,et al."Characterizing vertical migration of Microcystis aeruginosa and conditions for algal bloom development based on a light-driven migration model".ECOLOGICAL RESEARCH 32.6(2017):961-969. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。