Figure 2. Study 2.

Role of zebrafish-predator interaction to induce cortisol increase in zebrafish conspecifics. Experimental design and whole-body cortisol response of the target zebrafish. Mean values (±S.E.M.) compared by Kruskal-Wallis complemented by a Dunn's Multiple Comparisons Test. Different letters above means indicate statistical difference (P indicated in the graph). Numbers of repetitions obtained for each treatment (T1 to T6) are inside each column. The fish drawings in the graphics were drawn by LB.