Fig. 5From: Controlling blooms of Planktothrix rubescens by optimized metalimnetic water withdrawal: a modelling study on adaptive reservoir operationAverage (blue line) and the maximum (red line) P. rubescens concentration (as chlorophyll a) in the metalimnion during summer (10 to 12Â m, from days 180 to 240) under scenario T (see Table 1 for details). The shades show different periods of P. rubescens growth used in subsequent scenarios. The red dashed line, in the horizontal direction, indicates the threshold of P. rubescens concentration calculated from the WHO reportBack to article page