. 2013 Feb 13;3(3):676–693. doi: 10.1002/ece3.475

Table 3.

Comparison of Lithophyllum cabiochae net production and calcification versus irradiance curve parameters of the four treatments in summer and winter

					P-values from ANOVAs

	400 T	400 T + 3	700 T	700 T + 3	pCO₂	temperature	pCO₂ × temperature
Summer
O₂
P_g^max	1.16 ± 0.07^a	1.35 ± 0.03^ab	1.50 ± 0.04^b	1.20 ± 0.07^a	0.121	0.372	<0.001
P_n^max	0.90 ± 0.05^a	1.05 ± 0.02^ab	1.18 ± 0.04^b	0.94 ± 0.08^a	0.113	0.388	0.001
α	0.039 ± 0.002^a	0.037 ± 0.002^ab	0.034 ± 0.003^ab	0.029 ± 0.001^b	0.002	0.068	0.458
E_k	30 ± 1^a	37 ± 2^ab	45 ± 3^b	43 ± 3^b	<0.001	0.384	0.063
E_c	6.9 ± 0.5^a	8.4 ± 0.6^ab	9.6 ± 0.4^b	9.3 ± 0.2^b	<0.001	0.157	0.054
-CO₂
P_g^max	1.11 ± 0.08^a	1.27 ± 0.04^ab	1.40 ± 0.06^b	1.12 ± 0.04^a	0.212	0.331	0.001
P_n^max	0.84 ± 0.06^a	0.96 ± 0.02^ab	1.09 ± 0.07^b	0.83 ± 0.03^a	0.210	0.180	0.001
α	0.038 ± 0.002^a	0.038 ± 0.002^a	0.033 ± 0.002^ab	0.030 ± 0.001^b	0.002	0.336	0.445
E_k	29 ± 1^a	33 ± 1^ab	43 ± 3^c	38 ± 2^bc	<0.001	0.960	0.019
E_c	7.0 ± 0.4^a	8.1 ± 0.3^ab	9.3 ± 0.2^b	9.8 ± 0.6^b	<0.001	0.076	0.456
CaCO₃
G^max	0.42 ± 0.02^ab	0.50 ± 0.02^bc	0.57 ± 0.02^c	0.40 ± 0.01^a	0.139	0.040	<0.001
α	0.008 ± 0.002^a	0.007 ± 0.001^a	0.015 ± 0.002^b	0.007 ± 0.001^a	0.020	0.012	0.040
E_k	46 ± 9^nd	37 ± 4^nd	28 ± 3^nd	33 ± 2^nd	0.055	0.743	0.232
Winter
O₂
P_g^max	0.52 ± 0.04^a	0.71 ± 0.05^b	0.49 ± 0.05^a	0.54 ± 0.01^ab	0.029	0.012	0.110
P_n^max	0.43 ± 0.04^ab	0.61 ± 0.04^b	0.41 ± 0.05^a	0.43 ± 0.01^ab	0.021	0.025	0.068
α	0.050 ± 0.002^ab	0.056 ± 0.005^a	0.038 ± 0.003^b	0.037 ± 0.003^b	<0.001	0.446	0.391
E_k	10 ± 1^nd	13 ± 1^nd	13 ± 1^nd	15 ± 1^nd	0.038	0.038	0.607
E_c	1.7 ± 0.1^a	1.9 ± 0.2^a	2.0 ± 0.1^a	2.8 ± 0.2^b	<0.001	0.005	0.074
-CO₂
P_g^max¥	0.43 ± 0.03^a	0.64 ± 0.04^b	0.44 ± 0.05^a	0.48 ± 0.01^ab	0.099	0.006	0.097
P_n^max	0.37 ± 0.02^a	0.57 ± 0.04^b	0.37 ± 0.05^a	0.38 ± 0.01^a	0.023	0.012	0.020
α	0.048 ± 0.004^nd	0.056 ± 0.005^nd	0.038 ± 0.005^nd	0.040 ± 0.002^nd	0.009	0.257	0.395
E_k	9 ± 0^nd	12 ± 1^nd	12 ± 1^nd	12 ± 1^nd	0.041	0.023	0.135
E_c	1.3 ± 0.2^a	1.3 ± 0.2^a	1.9 ± 0.2^ab	2.5 ± 0.3^b	0.001	0.191	0.191
CaCO₃
G^max¥	0.05 ± 0.00^a	0.12 ± 0.01^b	0.10 ± 0.01^b	0.11 ± 0.01^b	0.012	<0.001	<0.001
α	0.005 ± 0.001^a	0.011 ± 0.001^b	0.007 ± 0.001^ab	0.005 ± 0.001^a	0.115	0.123	0.002
E_k	8 ± 2^a	9 ± 1^a	13 ± 2^ab	18 ± 2^b	<0.001	0.079	0.228

P_g^max, P_n^max, and G^max, maximal rate of gross production, net production and net calcification, respectively (μmol O₂, C, and CaCO₃ cm⁻² h⁻¹), α, initial slope of P-E or G-E curve (μmol cm⁻² h⁻¹ (μmol photons m⁻²s⁻¹)⁻¹), E_k, light saturating point, and E_c, compensation point (both in units of μmol photons m⁻²s⁻¹).

Values are means ± SE (n = 5 except for the 700 T + 3 treatment in winter where n = 4). P-values from the two-way ANOVAs (df = 1,16 in summer and 1,15 in winter) are shown at right. Bold type indicates Bonferroni-adjusted significance (P < 0.025). Different subscripts (a, b, and c) indicate significant difference between treatments (P < 0.025, Tukey HSD post hoc tests); nd, no difference. Transformed data are indicated: ^¥ log (x).