Figure 6

Relative oxygen saturation between 24 and 72 h post dispersant exposure; Mean relative oxygen saturation for 72 h (measured at 24 h, 30 h, 45 h, 50 h, 56 h, 68 h, and 72 h) exposures with increasing dispersant concentration, where error bars represent one standard error of the mean and different letters denote significant difference of means (F = 67.48, p < 0.0001).