Table 3.

Results of two-way ANOVAs performed to investigate potential differences of SMR, plasma ion concentrations and gill oxygen consumption between differently exposed fish groups (low PCO₂ = 550 µatm; medium PCO₂ = 1200 µatm and high PCO₂ = 2200 µatm at 10 °C; 18 °C)

Variable	PCO2 effect			Temperature effect			Interaction
	F	dF	P	F	dF	P	F	dF	P
SMR	0.0931	2	0.911	16.36	1	0.0002	2.383	2	0.1025
Plasma Na+	0.318	2	0.729	19.298	1	<0.001	6.535	2	0.003
Plasma Cl−	3.803	2	0.027	3.642	1	0.060	9.024	2	<0.001
Gill MO2	0.9367	2	0.393	89.33	1	<0.0001	0.1381	2	0.8711
HCO3 − -transporter	7.871	2	0.001	4.297	1	0.043	2.287	2	0.112

Significant differences are presented in bold