Biomass Concentration 0 15.86 0 17.23 0 12.54 0.5 14.49 0.5 14.75 0.5 32.46 1 18.39 1 19.86 1 20.02 1.5 17.54 1.5 24.24 1.5 24.29 2 23.29 2 19.23 2 18.32