Table 2 Photosynthesis and respiration rates

Half-saturation intensity (μmol photons m^-2 s^-1)

275 ± 48^a

259 ± 42^a

238 ± 51^a

P_max (μmol O₂ mg Chl^-1 h^-1)

119 ± 7.2^a

164 ± 7.3^b

141.5 ± 12.0^a

Respiration (μmol O₂ mg Chl^-1 h^-1)

6.2 ± 3.0^a

10.4 ± 4.4^a,b

16.4 ± 4.3^b

Respiration (fmol oxygen cell^-1 h^-1)

3.1 ± 1.5^a,b

2.6 ± 1.2^a

5.6 ± 1.5^b

P_max/respiration (relative units)

19.3 ± 9.4^a

15.8 ± 6.7^a,b

8.6 ± 2.4^b