Figure 6
From: Positive effects of bubbles as a feeding predictor on behaviour of farmed rainbow trout

Median (quartiles: 25%, 75%) number of agonistic behaviours, burst of accelerations, and jumps scored per minute during (A) the 6-min period following each of the three feed omission occasions, when pooled, and (B) three neutral periods of 6 min free from feedings or bubbles on day 12. The black point inside boxes represents the mean value. Different letters indicate significant differences between treatments (P < 0.05; Tukey post-hoc tests).