Daily activity under different lighting conditions from 2 to 7 dpf.

<p>Data are expressed as mean ± SEM. Letters indicate statistical differences between the different days for each lighting condition (one-way ANOVA; Tukey’s post-hoc test, p<0.05). Symbols indicate statistical differences between the lighting conditions (two-way ANOVA; Tukey’s post-hoc test, p<0.05).