Fig. 1. Ouabain-sensitive Na+/K+-ATPase activity of control
and seawater-adapted fish in a total cell fraction [i.e. cells collected from
combined PVC/MR (pavement cell/mitochondria-rich) fraction, the
1.031.09 g ml1 Percoll interface]. Both
partial-strength seawater (10
) and full-strength seawater
(30
)-adapted fish were used for testing. Significant differences are
indicated by different letters. Values represent means ±
S.E.M. (N=5 fish).