Fig. 3. (A) The relationship between the routine swimming velocity (U_r, BL s^-1) and the routine metabolic rate (RMR) of southern bluefin tuna with fitted linear regression (y=219x-166, R²=0.94). Values shown are means ± s.e.m. (N=5-9). (B) The relationship between ration consumed (%M_b) and the factorial increase swimming velocity recorded during the SDA period (%U_r) with fitted linear regression (y=14.1x+82.5, R²=0.53). Values are means ± s.e.m. (N=5-15).