Fig. 5

Short-term preliminary tests at the highest concentration (C3 = 0.500 mg/L) of sponge extracts AORO, HVAN, and GCYD on (A) P. tricornutum and (B) C. closterium. Values indicate growth stimulation ± standard deviation. Different letters (a-c) represent statistically different values according to Tukey’s post hoc test.