Fig. 6From: Controlling of two destructive zooplanktonic predators in Chlorella mass culture with surfactantsCascade cultivations of Chlorella in raceway ponds and contamination control using SDBS. The first 10 days of cultivation was conducted in a 20-m2 pond and the next 10 days was in a 200-m2 raceway pond. Both observed contaminants were Poterioochromonas sp. and 10 mg L−1 SDBS was added on the 5th and 16th day. Error bars represent the standard deviations of 3 replicate measurementsBack to article page