920608.fig.004
Figure 4: AFDW as a function of time for the ARID pond and triplicate conventional raceways. Batch phase growth ended on 3/14 for the ARID pond and 4/26 for the conventional raceways. The dashed regions were extrapolated with an OD750 to AFDW correlation equation (AFDW = 0.225(OD750) + 0.036) with an .