Results for the regression models.

Results for the regression model relating the abundance of yellow perch larvae to environmental variables. P model = P-value of the global test of significance; P = P-value for the test of significance of a variable with all the other terms included in the model; R2 = explained variation due to the explanatory variable (calculated as the average semi-partial R2); Coeff = regression coefficient. Bold indicates those variables significant at the 0.05 level after controlling for spatial correlation; n.d. = not determined since the global test was not significant.Note: The selected variables are ranked following their entry order in the full model (i.e. the model without covariables) during the forward selection procedure. Partial model: model with spatial covariables. Note that forward selection was only applied to build the full model.