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Figure 3 | Frontiers in Zoology

Figure 3

From: Branchial NH4+-dependent acid–base transport mechanisms and energy metabolism of squid (Sepioteuthis lessoniana) affected by seawater acidification

Figure 3

Extracellular acid–base status in Sepioteuthis lessoniana during acclimation to acidified conditions. Time course of in vivo changes in blood acid–base parameters including extracellular pH (pHe) (A), HCO3(B) and p CO2(C) during 168 h exposure to control (pH 8.1) and acidified (pH 7.7 and pH 7.3) conditions. The exposure period was separated into a short-term (grey) and medium-term (white) acclimation period. Letters indicate significant differences between pH treatments (p > 0.05). Bars represent mean ± SE (n = 3 replicate tanks, with six biological replicates per time point and treatment).

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