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Figure 6


Fig. 6. The effect of a 1 h base (3 mmol kg–1 NaHCO3) infusion in African lungfish Protopterus annectens on urine (A) pH and (B) HCO –3 ion concentration ([HCO –3]). Values are means ± s.e.m. for the period prior to base infusion (`pre'), and for measurement periods immediately following base infusion (0–4 h) and ~18 h post-infusion (17–21 h); N=5 or 6. An asterisk (*) indicates a significant difference from the pre-infusion value [one-way RM-ANOVA with P values of 0.002 (A) and 0.001 (B)].