Fig. 3 in Unusual effect of chemical communication on social aggression in juvenile cichlid fish Cichlasoma paranaense (Cichliformes: Cichlidae)

Fig. 3. Number (mean ± S.E.) of a. overt aggression and b. restrained aggression following water renewal in each treatment. Letters indicates a significant difference in relation to observation before water change (baseline) within each treatment. Different letters indicate statistical significance. Asterisk compares the observations between treatments. (Mixed Model ANOVA followed by Fisher's LSD post hoc test).