Fig. 1 in Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions

Fig. 1. Effect of environmental enrichment on aggressive interactions in pairs of pearl cichlid Geophagus brasiliensis. Aggression was studied in the resident fish's territory. The graphic shows median, quartiles, and minimum and maximum values. * denotes statistical difference between values within a same enrichment condition (p <0.05; Wilcoxon test) and between resident fish (p <0.05; Mann-Whitney U test). # denotes statistical difference between value for intruder fish (p <0.05; Mann-Whitney U test).