Table 1. Photosynthesis-irradiance (P-E) curve parameters for gorgonian species.

	Gorgonian species				One-way ANOVA
	P. anceps (9)	E. tourneforti (8)	P. porosa (6)	P. wagenaari (6)	MS	F3, 25	p	1-β
gross P cm−2	2.28ac±0.61	1.66a±0.48	4.32b±1.05	3.30bc±1.07	0.22	10.47	<0.001
net P cm−2	1.49a±0.44	1.15a±0.43	3.13b±0.89	2.17a±0.70	0.24	8.59	<0.001
R cm−2	−0.79a±0.25	−0.51b±0.09	−1.19c±0.25	−1.12ac±0.38	0.19	12.12	<0.001
gross P µg−1 chl a	1.04a±0.39	0.71a±0.18	0.32b±0.08	0.15c±0.03	0.99	52.60	<0.001
net P µg−1 chl a	0.68a±0.25	0.48a±0.12	0.23b±0.05	0.10c±0.02	1.00	46.70	<0.001
gross P cell−1 *10−7	18.29a±7.35	5.27bc±1.95	8.28b±2.52	3.98c±0.70	0.50	27.46	<0.001
net P cell−1 *10−7	12.04a±5.14	3.57bc±1.23	5.95b±1.84	2.57c±0.40	0.44	22.90	<0.001
α *10−3 (P µg−1 chl a)	2.51a±1.25	1.26b±0.57	0.53c±0.22	0.32c±0.10	1.11	29.36	<0.001
24 h gross P/R	0.88±0.21	0.78±0.23	0.93±0.16	0.83±0.18	0.03	0.78	0.516	0.22

Sample sizes for each gorgonian species are given in parentheses next to the species name (see Figure 1 legend for full genus names). P and R represent photosynthetic and respiration in µmol O₂ hr⁻¹ rates at 1800 µmol quanta m⁻² s⁻¹, respectively. α represents the initial slope of the P-E curve. Table cells contain the sample mean ± standard deviation. The mean square (MS), F statistics (F), and significance value (p) are from a one-way ANOVA using gorgonian species as a factor. All variables were transformed prior to conducting ANOVA. Means with different superscript letters are statistically different (α = 0.05). Power (1- β) is shown for non-significant results.