Results of the survival analysis (Cox regression model).

Concordance = 0.724 (s.e. = 0.026). R-square = 0.331 (max possible = 0.991).
The effects on LT (seconds) of the explanatory variables, species, distance to the MPA and their interaction and the density of fish were retained by the AIC-based model selection. The regression coefficients (coef) of the logarithm of the hazard ratio and its standard error (s.e.), the exponent of the coefficient for interpretation, the z-value and p-value of the minimal adequate Cox regression model are shown.