Fig. 8. Hearing thresholds of the Hawaiian sergeant fish Abudefduf abdominalis by sex and reproductive season. Audiograms during spawning and non-spawning seasons for males (A) and for females (B). A. abdominalis is most sensitive from 95 to 240 Hz and there was no difference in hearing sensitivity among sexes or seasons. Data are plotted as means ± s.d. (N=6 for each).