The effect of acclimation salinity on inanga plasma osmolality (mOsm kg− 1). Plotted values represent mean ± SEM of 11–13 individuals. Points sharing letters are not significantly different as determined by one-way ANOVA, followed by LSD post-hoc assessment, tested at α = 0.05. Filled circles and line represents the environmental osmolality. Asterisks represent significant differences between plasma and environmental osmolality (t-test).