Time-course evolution of nitrogen (A and B) and phosphorus (C and D) concentrations in the culture medium for single (A and C) and dual-species (B and D) cultures
containing S. salina. Error bars correspond to the standard deviation of the mean determined for duplicates from two independent experiments. The lines represent the model
fit of the modified Gompertz model to the experimental data. The horizontal dotted line corresponds to the limits for nutrients concentration in discharged effluents imposed
by EU legislation (15 mgN L1 for nitrogen and 2 mgP L1 for phosphorus).