Table 3. Relationships between ΔO₂ and ΔH⁺ per individual within each species at different pCO₂ treatments (Figure 7).

	Estimate	SE	t	p	R2	ptm
Marginopora vertebralis
Intercept	−36.005	12.244	−2.941	0.0187	0.80	0.0036
ΔO2	0.0116	0.1612	0.072	0.9446
pCO2 treatment	4.3394	1.5518	2.796	0.0233
ΔO2 : pCO2 treatment	−0.0045	0.0204	−0.222	0.8299
Amphistegina radiata
Intercept	−28.620	11.744	−2.437	0.0408	0.70	0.0166
ΔO2	−1.0420	0.5022	−2.075	0.0717
pCO2 treatment	3.4731	1.4950	2.323	0.0487
ΔO2 : pCO2 treatment	0.1237	0.0622	1.989	0.0819
Heterostegina depressa
Intercept	−14.865	6.4727	−2.297	0.0507	0.85	0.0012
ΔO2	0.1693	0.3218	0.526	0.6132
pCO2 treatment	1.7840	0.8203	2.175	0.0613
ΔO2 : pCO2 treatment	−0.0283	0.0417	−0.680	0.5159
Peneroplis sp.
Intercept	−13.038	3.7634	−3.464	0.0085	0.63	0.0371
ΔO2	0.8398	0.2972	2.826	0.0223
pCO2 treatment	1.5781	0.4768	3.310	0.0107
ΔO2 : pCO2 treatment	−0.1090	0.0382	−2.853	0.0214
Quinqueloculina sp.
Intercept	−6.7470	5.7909	−1.165	0.309	0.66	0.1885
ΔO2	−1.8837	1.9174	−0.982	0.382
pCO2 treatment	0.8514	0.7536	1.130	0.322
ΔO2 : pCO2 treatment	0.2333	0.2498	0.934	0.403
Miliola sp.
Intercept	−5.3733	4.0374	−1.331	0.254	0.76	0.1006
ΔO2	3.9626	2.7794	1.426	0.227
pCO2 treatment	0.6460	0.5145	1.256	0.278
ΔO2 : pCO2 treatment	−0.4918	0.3538	−1.390	0.237

R² constitutes the multiple R² explaining total variance of the overall model.

P_tm depicts the significance of the total model. Linear-model results with significant effects at the 5% level are indicated in bold.