期刊
WATER RESEARCH
卷 44, 期 8, 页码 2461-2472出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2010.01.012
关键词
AOA; Community structure; Continuous monitoring; Spectral fluorescence
资金
- National Science Foundation [CBET0606940, CBET0606929]
- South Carolina Sea Grant Consortium [P/M-2J-V410, R/ER 29]
- Howard Hughes Medical Institute
The utility of a multiple-fixed-wavelength spectral fluorometer, the Algae Online Analyser (AOA), as a means of quantifying phytoplankton biomass and community composition was tested using natural communities from two southeastern United States estuaries, North Inlet, South Carolina, and the Neuse River Estuary, North Carolina. Estimates of biomass (as chlorophyll a) were correlated with HPLC values and variations (usually over-estimates) were consistent with effects of light intensity and nutrient availability on fluorescence quenching. AOA estimates of taxonomic structure were consistent with those from HPLC-derived marker pigments by ChemTax, with both methods indicating domination by chromophytes and green algae in North Inlet and chromophytes and cyanobacteria in the Neuse. We recommend frequent calibration by discrete sample collection, and calibration with species representative of the region of interest. Overall, the AOA appears to be a useful tool for monitoring of phytoplankton community composition, especially as an early warning system for the detection of harmful algal blooms. (C) 2010 Elsevier Ltd. All rights reserved.
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