Fig. 3.

Mean (±SE, N = 8) distance traveled (mm) per minute for resting (<5 mm/s; A, D, G), cruising (5–20 mm/s; B, E, H) or bursting (>20 mm/s; C, F, I) swimming speeds of 4, 7 or 10 days post fertilization (dpf) old Danio rerio larvae following exposure to diazinon for 72 h. Distance traveled was observed over two 10 min periods of light (white bars) or dark (black bars). Different letters indicate significant (p<0.05) differences from controls. At concentrations with significant decreases in survival, no behavioral observations were recorded. N.M.: Not Measured.