Fig. 4
From: Controlling of two destructive zooplanktonic predators in Chlorella mass culture with surfactants
Changes in cell density of Chlorella and inoculated contaminating organisms in 5-m2 raceway ponds. The contaminating organisms were Poterioochromonas sp. (a) and Hemiurosomoida sp. (b), with open symbols indicating the cultivation without SDBS treatment, and closed symbols indicating the cultivation treated with 10 mg L−1 SDBS on the 6th day (a) and the 7th day (b). Error bars represent the standard deviations of 3 replicate measurements