Fig. 3. Mean time spent in the octant (+/- SEM) into which fluoranthene flowed during the exposure period as compared to the time spent in that octant during the preexposure period for individual dosed fathead minnows (ie., acutely exposed to fluoranthene prior to behavioral monitoring). Different letters above bars indicate significance at p < 0.05. Fluoranthene concentrations were (A) 8.6 ,u/I, (B) 24.4 ,u/I, and (C) 43.8 ,u/I. For (A) and (C), the experimental subgroups were composed of eight fish. For (B) the experimental subgroup was composed of five fish due to the failure of three fish to meet the requirements for an acceptable test.
