Fig. 4. Stage 1 duration (A), stage 2 duration (B) and total escape duration (C) versus total length. Mean values calculated for each individual are plotted ± S.E.M. (N=7–11 escapes). Equations of linear regressions for stage 1 duration are y=5.45x+19.8 (r²=0.32, P=0.051) for larvae (open circles and dashed lines) and y=4.03x+47.2 (r²=0.50, P=0.076) for adults (filled squares and solid lines). Equations of linear regressions for stage 2 duration are y=11.5x+12.1 (r²=0.38, P=0.025) for larvae and y=10.3x+34.8 (r²=0.663, P=0.026) for adults. Equations of linear regressions for total escape duration are y=16.9x+31.9 (r²=0.40, P=0.02) for larvae and y=14.3x+82.1 (r²=0.72, P=0.016) for adults. For results of one-factor ANCOVA, refer to Table 2.