Fig. 1.
Testosterone (A–C) and estradiol (D–F) concentrations (mean ± SEM). In the adult Fundulus, the nominal 10 μg/l BaP treatment significantly reduced circulating testosterone concentrations in the males (A) (Kruskal-Wallis, p < 0.05, n = 7 tanks/treatment, 2–3 males/sample; bars with the same letter are not significantly different) and estradiol concentrations in the female (D) (ANOVA, p < 0.05, n = 7 tanks/treatment, 2–3 females/sample). Whole body steroid concentrations of larvae (n = 5–6/treatment, five larvae pooled per sample) at 1 week posthatch (WPH) (B, E) and 3 weeks posthatch (C, F) were not altered by either 1 or 10 μg/l BaP treatment.