Fig. 5. Rates of sodium uptake (nmol g-1 h-1) as a function
of ambient sodium concentration in the presence of different ambient copper
concentrations in juvenile rainbow trout during a 2 h incubation period. The
lines are Michaelis—Menten curves (SigmaPlot 4.0 for Windows), and the
inset summarizes the derived sodium uptake kinetic parameters
Jmax (nmol g-1 h-1) and
Km (µmol l-1). Values are means ±
S.E.M., N=8 in all cases. In the inset, an asterisk indicates a
significant difference from the control condition (18 nmol l-1
copper).
