*2.4. Statistical Analyses*

To test for significant di fferences between the UV and PAR treatments against the control in exp 1–3 at a 95% significance level, we applied a nonparametric one-way ANOVA on Ranks (Kruskal-Wallis test) with Dunn's post hoc test. All analyses were conducted with the program SigmaPlot version 12.5. Data of the same experiment and ciliate were pooled.
