Fig. 2. Relative intensity of 60.5 kDa band representing the B subunit of V-H⁺-ATPase in the gills of freshwater (FW), seawater-acclimated (SWA) and seawater (SW) stingrays. N=5 for all groups. Although statistical differences were detected with a non-parametric test (Kruskal–Wallis ANOVA), values are shown as means + 1 S.E.M. for clarity. Lower case letters indicate statistical categorization of groups as determined by a Kruskal–Wallis post-hoc test (P <0.05).

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