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Table 1.

Means of the photosynthetic (P vs E) values and related parameters for the three coral species

F. favus (N=3)P. sinuosa (N=3)G. lobata (N=2)
α (μmol O2 cm-2 min-1) (μmol quanta m-2 s-1)-1 1.50×10-4±3.64×10-5 2.50×10-4±1.67×10-4 2.23×10-4±1.83×10-5 
Ecom (μmol quanta m-2 s-1118.75±6.57 130.30±21.08 153.96±140.43 
Ek (μmol quanta m-2 s-1752.37±51.63 677.90±101.51 952.95±130 
Eopt (μmol quanta m-2 s-11017.30±40.36 1017.30±40.36 1025±53.67 
Pmax (μmol O2 cm-2min-10.11±0.03 0.22±0.13 0.22±0.05 
Respiration (oxygen flux) (μmol O2 min-1–1.7±0.2 –2.3±0.35 –1.4±0.28 
Pg/R24h 4.37±0.68 3.78±0.18 3.48±0.23 
r2 0.98±0.01 0.99±0.004 0.98±0.004 
F. favus (N=3)P. sinuosa (N=3)G. lobata (N=2)
α (μmol O2 cm-2 min-1) (μmol quanta m-2 s-1)-1 1.50×10-4±3.64×10-5 2.50×10-4±1.67×10-4 2.23×10-4±1.83×10-5 
Ecom (μmol quanta m-2 s-1118.75±6.57 130.30±21.08 153.96±140.43 
Ek (μmol quanta m-2 s-1752.37±51.63 677.90±101.51 952.95±130 
Eopt (μmol quanta m-2 s-11017.30±40.36 1017.30±40.36 1025±53.67 
Pmax (μmol O2 cm-2min-10.11±0.03 0.22±0.13 0.22±0.05 
Respiration (oxygen flux) (μmol O2 min-1–1.7±0.2 –2.3±0.35 –1.4±0.28 
Pg/R24h 4.37±0.68 3.78±0.18 3.48±0.23 
r2 0.98±0.01 0.99±0.004 0.98±0.004 

The values are means ± s.d. and were constructed from in situ measurements performed using the submersible respirometer.

Abbreviations: α, initial slope; Ecom,compensation intensity; Ek, saturating intensity; Eopt, optimum irradiance; Pmax,light-saturated photosynthesis rate and compensation light levels; Pg/R24h, rate of gross photosynthesis to dark respiration integrated over 24 h.

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