Fig. 8. Relationship between the relative catalytic efficiency of the overall lactate dehydrogenase (LDH) suite in crude homogenates and the total mass of muscle (A) and liver (B). / is the total tissue relative catalytic efficiency; V_max^total is expressed in U g^–1 wet mass; mass of muscle = 90% of the mass difference between fresh body mass and liver [M_muscle=(M_fish–M_liver)x0.9]. Mean data are presented as larger symbols with bars representing S.D. (N=21 for 4°C acclimation and N=15 for 12°C acclimation). Broken lines are linear regressions. (A) 4°C, y=2670+1.079x (r²=0.02; N=21); 12°C, y=6121–0.61x (r²=0.02; N=15); (B) 4°C, y=4728–6.921x (r²=0.02; N=18); 12°C, y=7069–11.1x (r²=0.08; N=15). Asterisks indicate that differences are significant (unpaired t-test, P<0.05); ns, differences are not significant (unpaired t-test, P>0.05).