Fig. 5. The effect of salinity on plasma osmolality in tilapia hybrids following
graded transfers to 45, 35, 55, 65, 75, 85 or 95 g l1
salinity. Different lines represent sampling times of 3, 24 or 120 h following
transfer (see key). *Significant difference relative to 45 g
l1 value (P<0.001, N=7).