Multiple regression ranking results of the mean relative abundance of sharks observed by divers (Abund, response variable) as a function of the following explanatory variables: current strength (Cur), temperature (Temp), visibility (Vis), year, moon phase (Moon) and number of tourist divers in the

Model with best fit for each analysis highlighted (bold). AIC: Akaike's Information Criteria, ΔAIC: difference of the AIC of a given model to the model with best fit, wAIC: AIC weight, df: degrees of freedom.