
Fig. 4. Relationship between percentage urea excretion [JUrea/(JUrea+JAmm)], where JUrea is the rate urea excretion and JAmm is the rate of ammonia excretion, and external salinity in Rivulus marmoratus following 9 days of acclimation to each salinity; r2=0.92, y=1.91x+13.01. Values are expressed as means ± S.E.M. (N=6).