Measuring natural phytoplankton fluorescence and biomass: A case study of algal bloom in the Pearl River estuary
文献类型：期刊论文
| 作者 | Zhao, J ; Cao, WX ; Yang, YZ ; Wang, GF ; Zhou, W ; Sun, ZH |
| 刊名 | MARINE POLLUTION BULLETIN
 |
| 出版日期 | 2008 |
| 卷号 | 56期号:10页码:1795-1801 |
| 关键词 | Natural fluorescence Biomass Algal bloom Optical buoy |
| ISSN号 | 0025-326X |
| 通讯作者 | wxcao@scsio.ac.cn |
| 中文摘要 | A moored optical buoy was deployed in the Pearl River estuarine waters for a 15-day period. A four-day algal bloom event occurred during this study period. Both chlorophyll a concentration and algal cell density (a proxy for biomass) changed dramatically before and after the event. The chlorophyll concentration at a 2.3 m depth rose from 5.15 Mg/m(-3) at 15:00 h on August 19 to 23.62 Mg/m(-3) at 9:00 h on August 21, and then decreased to 3.24 Mg/m(-3) at 15:00 h on August 24. The corresponding cell density ranged from 1.57 x 10(5) to 1.76 x 10(6) cells/L We used normalized fluorescence line height (NFLH) and normalized fluorescence intensity (NFI) in order to determine fluorescence activity. Combined with the in situ sampling dataset, we were able to correlate natural fluorescence (NFLH and NFI) with chlorophyll a concentrations, and found correlation coefficients of 0.72 and 0.75, respectively. We also found correlations between natural fluorescence and cell density, with correlation coefficients of 0.71 and 0.65, respectively. These results indicate that applying continuous time series of natural fluorescence can reflect changes in biomass. This technique will prove extremely useful for in situ and real-time observations using an optical buoy. Although there are still problems to solve in the real-time observation of natural fluorescence in algal bloom events, we discuss the primary factors affecting fluorescence signals and suggest possible methods for mitigating these issues. (C) 2008 Elsevier Ltd. All rights reserved. |
| 学科主题 | Environmental Sciences; Marine & Freshwater Biology |
| 收录类别 | SCI |
| 原文出处 | OCT |
| WOS记录号 | WOS:000260745300024 |
| 公开日期 | 2011-07-03 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/5935]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Zhao, J,Cao, WX,Yang, YZ,et al. Measuring natural phytoplankton fluorescence and biomass: A case study of algal bloom in the Pearl River estuary[J]. MARINE POLLUTION BULLETIN,2008,56(10):1795-1801. |
| APA | Zhao, J,Cao, WX,Yang, YZ,Wang, GF,Zhou, W,&Sun, ZH.(2008).Measuring natural phytoplankton fluorescence and biomass: A case study of algal bloom in the Pearl River estuary.MARINE POLLUTION BULLETIN,56(10),1795-1801. |
| MLA | Zhao, J,et al."Measuring natural phytoplankton fluorescence and biomass: A case study of algal bloom in the Pearl River estuary".MARINE POLLUTION BULLETIN 56.10(2008):1795-1801. |
入库方式： OAI收割
来源：南海海洋研究所
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