Wilcoxon pair-wise comparisons^* testing for behaviour differences between repeated runs of four behaviour assays, data pooled for mid-season and late season.

<p>*Catch time was recorded four times and for these comparisons we used Friedman nonparametric tests of multiple dependent variables (χ²), using only those fish that were measured all four times. Pairwise comparisons for all four measures of catch time were subsequently tested with Wilcoxon.