Table 1.

Light inside and outside the algae culture was measured every 5 min throughout the experiment

Batch	Light outside photons μmol m−2 s−1	Light inside photons μmol m−2 s−1
1: April 5–12	352.7	15.5
2: April 12–19	462.9	16
3: April 19–26	293.5	20.8
4: April 26–May 3	500.4	25.8
5: May 3–10	465.2	27.7

The values represent the mean for each batch