Comparison of General Additive Models constructed for predicting juvenile Pristis pectinata locations within the Caloosahatchee River (as defined by the distance from the river mouth (rkm)) in southwest Florida.

Models incorporate salinity (sal), water temperature (temp), length (len), month (mon) and freshwater flow (flow). Interaction terms are indicated by two factors within a term. Models with the lowest AIC value indicate the most plausible model, in this case number 22. AIC weight indicates the proportional support for the individual models.