Akademik Veri Yönetim Sistemi
Environmental Management, cilt.75, sa.9, ss.2498-2505, 2025 (SCI-Expanded)
Cyanobacteria blooms are a widespread challenge, causing significant negative impacts on freshwater ecosystems. Utilizing chemicals that leave no harmful residues and selectively target cyanobacteria offers a promising, environmentally friendly strategy to control these blooms. This study investigates the effects of hydrogen peroxide (H₂O₂) application on controlling cyanobacteria proliferation and evaluates its impact on prokaryotic communities. The findings revealed that applying H₂O₂ at 2 mg L-1 selectively suppressed Planktothrix agardhii blooms with no notable adverse effects on non-targeted phytoplankton. H2O2 degraded significantly within the first 4 h of the experiment, and no traces were detected after 24 h. Following treatment, chlorophyll-a levels decreased significantly, by ~55% within 1 h and ~ 90% within 2 h, compared to the initial measurements. The bacterial community composition also changed notably after H2O2 addition. Rheinheimera dominated the prokaryotic community on day 3, representing 40.3%, but diminished to about 1% by the end of the experiment. In contrast, H2O2 application triggered Noviherbaspirillum species, their abundance gradually increased over time. The results highlight the potential of the H2O2 application to control P. agardhii blooms effectively, though further research at larger scales, such as mesocosm experiments or whole-ecosystem trials, are needed to fully understand its usage in bloom mitigation.