Figure 4
(A) \({\hbox {O}_{2}}\) concentration over time under light (yellow bar) and dark (black bar, 20 \({\textrm{min}}\)) phases for biofilms at day 7 developed at different light regimes. (B) \({\hbox {O}_{2}}\) evolution rate per chlorophyll-a over time, extracted from (A). 100 \({\upmu \textrm{mol} \, \textrm{m}^{-2} \, \textrm{s}^{-1}}\): grey line; 200 \({\upmu \textrm{mol} \, \textrm{m}^{-2} \, \textrm{s}^{-1}}\): two blue curves represent two replicates; 300 \({\upmu \textrm{mol} \, \textrm{m}^{-2} \, \textrm{s}^{-1}}\): magenta line; 500 \({\upmu \textrm{mol} \, \textrm{m}^{-2} \, \textrm{s}^{-1}}\): brown line.
