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Fig. 1. Time course of changes in osmoregulatory parameters in plasma osmolality
(A,B) and Na+,K+-ATPase activity in gills (C,D) and
kidney (E,F) of gilthead sea bream acclimated to hyperosmotic (A,C,E) or
hypo-osmotic (B,D,F) conditions. Fish were transferred for 14 days from
seawater (SW) to (A,C,E) hypersaline water (HSW; closed circles) or (B,D,F)
low salinity water (LSW; closed circles). Open circles indicate control fish
transferred from SW to SW. Each value is the mean ± S.E.M.
of N=8 fish per group and sampling time. *Significantly
different (P<0.05) from SW group at the same sampling time.
Different letters indicate significant differences (P<0.05) among
sampling times (0, 1, 3, 7 and 14 days) in fish acclimated to HSW or LSW.