Scatter plots showing the relationship among swimming rates (number of gridlines crossed per minute) and AChE activity in adult zebrafish exposed to CuCl2, CPF, or CPF+Cu binomial mixtures. Linear regression analysis indicated a negative correlation between Cu exposure and swimming behavior (R2=0.076, p=0.440), whereas fish exposed to CPF alone (R2=368, p=0.063) or a mixture of CPF+Cu (R2=0.212, p=0.180), exhibited a positive correlation. However, none of these correlations were statistically significant.