文献类型： 外文期刊

作者： Piel, Tim ¹ ; Sandrini, Giovanni ¹ ; Weenink, Erik F. J. ¹ ; Qin, Hongjie ¹ ; van Herk, Maria J. ¹ ; Morales-Grooters, Mariel Leon ¹ ; Schuurmans, J. Merijn ¹ ; Slot, Pieter C. ¹ ; Wijn, Geert ⁷ ; Arntz, Jasper ⁷ ; Zervou, Sevasti-Kiriaki ⁸ ; Kaloudis, Triantafyllos ⁸ ; Hiskia, Anastasia ⁸ ; Huisman, Jef ¹ ; Visser, Petra M. ¹ ;

作者机构： 1.Univ Amsterdam, Inst Biodivers & Ecosyst Dynam, Dept Freshwater & Marine Ecol, POB 94240, NL-1090 GE Amsterdam, Netherlands

2.Agendia NV, NL-1043 NT Amsterdam, Netherlands

3.Evides Water Co, Dept Technol & Sources, NL-3006 AL Rotterdam, Netherlands

4.Environm Hort Res Inst, Guangdong Acad Agr Sci, Guangdong Prov Key Lab Ornamental Plant Germplasm, Guangzhou 510640, Peoples R China

5.Inst Agr Resources & Environm, Jiangsu Acad Agr Sci, Nanjing 210014, Peoples R China

6.Erasmus MC Univ Rotterdam, Dept Biomed Engn, Thoraxcenter, Off Ee2302,POB 2040, NL-3000 CA Rotterdam, Netherlands

7.Arcadis Nederland BV, POB 264, NL-6800 AG Arnhem, Netherlands

8.Natl Ctr Sci Res Demokritos, Natl Ctr Sci Res, Photocatalyt Proc & Environm Chem, Patriarchou Gregoriou E & 27 Neapoleos Str, Athens 15341, Greece

9.Athens Water Supply & Sewerage Co EYDAP SA, Lab Organ Micropollutants, Water Qual Control Dept, Athens, Greece

关键词： Microcystins; Anabaenopeptins; Mitigation; Dolichospermum; Planktothrix; Harmful blooms

期刊名称：HARMFUL ALGAE （ 影响因子：6.6； 五年影响因子：5.6 ）

ISSN： 1568-9883

年卷期： 2024 年 133 卷

页码：

收录情况： SCI

摘要： Cyanobacteria can reach high densities in eutrophic lakes, which may cause problems due to their potential toxin production. Several methods are in use to prevent, control or mitigate harmful cyanobacterial blooms. Treatment of blooms with low concentrations of hydrogen peroxide (H2O2) is a promising emergency method. However, effects of H2O2 on cyanobacteria, eukaryotic phytoplankton and zooplankton have mainly been studied in controlled cultures and mesocosm experiments, while much less is known about the effectiveness and potential side effects of H2O2 treatments on entire lake ecosystems. In this study, we report on three different lakes in the Netherlands that were treated with average H2O2 concentrations ranging from 2 to 5 mg L-1 to suppress cyanobacterial blooms. Effects on phytoplankton and zooplankton communities, on cyanotoxin concentrations, and on nutrient availability in the lakes were assessed. After every H2O2 treatment, cyanobacteria drastically declined, sometimes by more than 99%, although blooms of Dolichospermum sp., Aphanizomenon sp., and Planktothrix rubescens were more strongly suppressed than a Planktothrix agardhii bloom. Eukaryotic phytoplankton were not significantly affected by the H2O2 additions and had an initial advantage over cyanobacteria after the treatment, when ample nutrients and light were available. In all three lakes, a new cyanobacterial bloom developed within several weeks after the first H2O2 treatment, and in two lakes a second H2O2 treatment was therefore applied to again suppress the cyanobacterial population. Rotifers strongly declined after most H2O2 treatments except when the H2O2 concentration was <= 2 mg L-1, whereas cladocerans were only mildly affected and copepods were least impacted by the added H2O2. In response to the treatments, the cyanotoxins microcystins and anabaenopeptins were released from the cells into the water column, but disappeared after a few days. We conclude that lake treatments with low concentrations of H2O2 can be a successful tool to suppress harmful cyanobacterial blooms, but may negatively affect some of the zooplankton taxa in lakes. We advise pretests prior to the treatment of lakes to define optimal treatment concentrations that kill the majority of the cyanobacteria and to minimize potential side effects on non-target organisms. In some cases, the pre-tests may discourage treatment of the lake.