Fig. 4From: Variation in branchial expression among insulin-like growth-factor binding proteins (igfbps) during Atlantic salmon smoltification and seawater exposureEffects of SW exposure on ionoregulatory parameters. Plasma chloride (a) and branchial Nka activity (b), nkcc1 (c) and cftr1 (d) mRNA levels in Atlantic salmon subjected to 24 and 48 h SW exposures in March (open bars) and May (shaded bars). Means ± S.E.M. (n = 8). mRNA levels are presented as a fold-change from the 0 h groups. Within a given experiment, denoted by uppercase or lowercase letters, means not sharing the same letter are significantly different (one-way ANOVA, Tukey’s HSD test, P < 0.05)Back to article page