Pulse Amplitude Modulation Fluorometry - Coral Reef Targeted ...

Figure 4. a) The relationship between time (min) and depth (m) during which nitrogenfixation can take place in Montastraea cavernosa with endosymbiotic cyanobacteria.The open circles represent predictions using the data from the fitted P-I curve. Theclosed squares are the simulation results using the empirical respiration rates, andthe closed circles represent the simulation results under conditions where we allowednitrogen fixation to take place at the same irradiances experienced in situ by ourcoral samples. b) Using the percent abundance data of Montastraea cavernosa withendosymbiotic cyanobacteria and the simulation data of the percentage of daylightirradiances that are below the compensation point (± 10%) there is a significantfunctional relationship (ANOVA: P