Figure 3
From: Ocean acidification reverses competition for space as habitats degrade

Influence of exposure to elevated CO2 and fish species on space use.
Mean proportional height above the reef base within 3 min behavioural observations for Pomacentrus moluccensis (white) and P. amboinensis (grey) that had been reared under ambient or elevated CO2 conditions. Letters above the bars represent Tukey's HSD groups. Error bars are standard errors (n = 53–55).