Table 4.

Regression analyses for the pCO₂-dependent protein concentrations of intestinal ion transporters in Gadus morhua, and analysis of covariance (ANCOVA) between regressions at the two acclimation temperatures of 10 and 18°C.

Parameter	Regression	R2	df	F	p
NKA
pCO2 vs. protein
10°C	Protein = 0.000158*X + 0.3068	0.641	1, 13	23.21	0.0003*
18°C	Protein = 0.0003419*X + 1.05	0.378	1, 14	8.50	0.0113*
10°C vs. 18°C slope			1, 27	16.95	0.0003*
NBC
10°C	Protein = 0.0004158*X + 0.6838	0.2963	1, 15	6.316	0.0239*
18°C	Protein = 0.0001224*X + 0.7476	0.0838	1, 16	1.464	0.2439
10°C vs. 18°C slope			1, 31	7.959	0.0083*
SLC26A6
10°C	Protein = 0.0001245*X + 0.3591	0.0525	1, 15	0.924	0.3766
18°C	Protein = 0.0001222*X + 0.6695	0.0581	1, 15	0.9244	0.3516
10°C vs. 18°Cslope			1, 30	1.748	0.1961
10°C vs. 18°C intercept			1, 31	0.0167	0.8975
VHA
10°C	Protein = 0.0001972*X + 0.5609	0.1103	1, 16	1.983	0.1782
18°C	Protein = 0.0002569*X + 0.8379	0.2355	1, 16	4.928	0.0412*
10°C vs. 18°Cslope			1, 32	6.249	0.0177*
NHE3
10°C	Protein = 0.0001566*X + 0.6375	0.1699	1, 15	3.07	0.1002
18°C	Protein = 0.0000414*X + 0.376	0.0185	1, 15	0.2831	0.6025
10°C vs. 18°Cslope			1, 30	0.9581	0.3355
10°C vs. 18°C intercept			1, 31	2.371	0.1337
CLC3
10°C	Protein = 0.0001129*X + 0.1674	0.0442	1, 15	0.6037	0.4180
18°C	Protein = 0.0002753*X + 0.2697	0.1351	1, 15	2.343	0.1467
10°C vs. 18°Cslope			1, 30	0.5198	0.4765
10°C vs. 18°C intercept			1, 31	4.381	0.0446*

^*Indicates significant (p < 0.05) differences.