Fig. 2

Abundance of cyp1a transcripts and EROD activity. Fold changes of the abundances of cyp1a transcripts as determined by means of quantitative real-time RT-PCR (a), as well as EROD activity induced after the realistic exposure scenario (b). Bars represent the average of all fish used for the respective treatment (n = 6) and the control (white bars), and error bars are the standard deviation. Asterisks indicate statistically significant effects compared to the control within each treatment, while pound signs indicate statistically significant differences compared to the EBR treatment within one time point (two-way ANOVA with Dunnett’s post hoc test, p ≤ 0.05; transcript abundance data was of log ₁₀-transformed)