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. 2011 Nov 23;6(11):e28059. doi: 10.1371/journal.pone.0028059

Figure 2. Temporal variation of the bioactivity in relation to the seawater temperature.

Figure 2

a) Variation of Oscarella balibaloi bioactivity (EC50 in µg.mL−1) over two years (Kruskal-Wallis test: H KW(20;109)  = 78.86; p<0.0001) in relation to the seasonal fluctuations of the seawater temperature (°C). Vertical bars represent standard errors (Mean ± 0.95 SE). b) Effect of the seawater temperature on the bioactivity of Oscarella balibaloi. The bioactivity is indicated in EC50 (µg.mL−1). Boxes represent Mean ± 0.95 SE and vertical bars Mean ± 0.95 Confidence Interval. Significant effect indicated by Kruskal-Wallis test: H KW(4;106)  =  27.35, p<0.0001.