. 2019 Oct 14;51(2):691–700. doi: 10.1007/s42770-019-00153-8

Table 2.

Estimated OTUs, richness, and diversity indices based on the OTU-generated matrices of samples from Schiermonnikoog Island

Samples	Observed OTUs	Chao (richness)	Shannon (diversity)	Phylogenetic distance
W_SI	247.65 ± 8.41^a*	293.44 ± 24.72^a	5.60 ± 0.40^a	24.36 ± 2.37^a
WB_SI	224.4 ± 18.61^a	292.69 ± 17.02^a	5.07 ± 0.11^ab	22.84 ± 1.50^ac
WS_SI	227.96 ± 8.39^a	295.80 ± 12.30^a	4.35 ± 0.23^b	21.91 ± 1.25^ac
WO_SI	165.7 ± 16.60^b	207.40 ± 26.08^b	4.93 ± 0.71^ab	19.46 ± 1.35^bc
WOB_SI	218.73 ± 23.60^a	271.63 ± 25.71^a	5.23 ± 0.48^ab	20.63 ± 1.45^bc
WOS_SI	225.13 ± 21.47^a	275.78 ± 26.60^a	4.58 ± 0.37^b	20.48 ± 1.83^bc

SI, Schiermonikoog Island; W, water; WB, water and surfactin; WS, water and Ultrasperse II; WO, water and oil; WOB, water, oil, and surfactin; WOS, water, oil, and Ultrasperse II

*Different letters indicate statistically significant differences based on Tukey’s test (p < 0.05)