Hydrogen peroxide treatment promotes chlorophytes over toxic cyanobacteria in a hyper-eutrophic aquaculture pond

Environmental Pollution
Zhen YangAlan E Wilson

Abstract

Controlling blooms of toxigenic phytoplankton, including cyanobacteria, is a high priority for managers of aquatic systems that are used for drinking water, recreation, and aquaculture production. Although a variety of treatment approaches exist, hydrogen peroxide (H2O2) has the potential to be an effective and ecofriendly algaecide given that this compound may select against cyanobacteria while not producing harmful residues. To broadly evaluate the effectiveness of H2O2 on toxigenic phytoplankton, we tested multiple concentrations of H2O2 on (1) four cyanobacterial cultures, including filamentous Anabaena, Cylindrospermopsis, and Planktothrix, and unicellular Microcystis, in a 5-day laboratory experiment and (2) a dense cyanobacterial bloom in a 7-day field experiment conducted in a nutrient-rich aquaculture pond. In the laboratory experiment, half-maximal effective concentrations (EC50) were similar for Anabaena, Cylindrospermopsis, and Planktothrix (average EC50 = 0.41 mg L-1) but were ∼10x lower than observed for Microcystis (EC50 = 5.06 mg L-1). Results from a field experiment in an aquaculture pond showed that ≥1.3 and ≥ 6.7 mg L-1 of H2O2 effectively eliminated Planktothrix and Microcystis, respectively. Moreover, 6.7 m...Continue Reading

References

Jan 1, 1995·Annual Review of Genetics·A R GrossmanD M Kehoe
Feb 3, 2007·Environmental Science & Technology·Michaela DrábkováBlahoslav Marsálek
Oct 7, 2008·FEMS Microbiology Reviews·Amel LatifiCheng-Cai Zhang
Feb 6, 2009·Environmental Science & Technology·Dani J Barrington, Anas Ghadouani
Oct 8, 2011·PloS One·Claudia Dziallas, Hans-Peter Grossart
Nov 1, 2011·Environmental Pollution·Zhicong WangYinxia Li
Nov 25, 2011·Water Research·Hans C P MatthijsJef Huisman
Jan 17, 2012·Environmental Science & Technology·Blahoslav MarsalekRadek Zboril
Mar 21, 2012·Environmental Microbiology·Brett A NeilanElke Dittmann
Dec 1, 2011·Journal of Phycology·Richard R Phelan, Timothy G Downing
Aug 16, 2016·Environmental Science and Pollution Research International·Theodoti PapadimitriouChrysi Laspidou
Jan 1, 2014·Harmful Algae·Amanda BursonJef Huisman

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Citations

Jan 8, 2020·Environmental Science and Pollution Research International·Lisa SpoofJussi Meriluoto
Dec 16, 2020·The Science of the Total Environment·Sivakumar Subpiramaniyam
Feb 14, 2021·Environmental Science and Pollution Research International·Riley P BuleyAlan E Wilson

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