Figure 3
From: Male urine signals social rank in the Mozambique tilapia (Oreochromis mossambicus)
Urination and behaviour of neighbouring tilapia males. Urination frequency (mean ± SEM, n = 16) during non-aggressive behaviour, aggressive displays and high aggression. Different letters over the bars indicate significant differences (repeated-measures analysis of variance (ANOVA), F 1,15 = 125.6, p < 0.001 followed by least significant difference (LSD) pairwise comparisons, p < 0.05).