Figure 3.

Oxygen uptake (ṀO₂) of anadromous Arctic char during acute warming to loss of equilibrium (CT_Max). Individual ṀO₂ values at their measured temperatures (grey circles; n = 8 individuals and 111 data points) and mean ± sem values in 1°C bins (blue circles and grey shading) are presented. Mean values were calculated at all points where data were available for three or more individuals. The dashed line indicates temperatures where individuals were removed after reaching CT_Max. For reference, the models for maximum ṀO₂ and ṀO_2Min (Fig. 1) are presented with their upper or lower 95% confidence intervals, respectively (light blue lines with shaded areas).