Table 3. Photosynthetic parameters for Symbiodinium cultures exposed to high osmolarity conditions for 7 days.

	Symbiodinium type B17			Symbiodinium type A1
	CONTROL	STRESS	P	CONTROL	STRESS	P
Normalized to cell number
Pmax	2.01±0.101	1.53±0.158	0.014	2.68±0. 147	1.54±0.144	<0.001
R	0.22±0.015	0.53±0. 065	0.534	1.10±0. 441	0.84±0.287	0.657
α ‡	3.00±0.00	3.00±0.00	1.00	5.33±2.08	5.67±1.15	0.245
Chl a	0.65±0.11	0.74±0.05	0.994	8.19±0.603	4.90±1.66	0.009
Normalized to Chl a content
Pmax	6.24±0.31	4.17±0.429	<0.001	0.72±0.149	0.63±0.076	0.977
R	40.3±2.68	83.4±10	<0.001	15.6±6.29	20.0±6.8	0.869
α ‡‡	300.0±0.0	267±57.7	0.599	43.3±20.8	80.0±17.0	0.528

P_max and respiration (R) values expressed as µmol O₂ min⁻¹ cell⁻⁹ or µmol O₂ mg⁻¹ Chl a min⁻¹ respectively. Chl a values expressed in mg mL⁻¹. Values are the means of 3 independent experiments ± SD. Significant probabilities (P) in bold.

^‡  = values×10⁻⁸;

^‡‡  = values×10⁻⁶.