Figure 3

Nonmetric multidimensional scaling (NMDS) ordination based on Bray-Curtis dissimilarities between bacterial communities in the representative heavy (H) and light (L) fractions from all samples. Each circle represents an individual community in the NMDS charts. The number in the circle represents incubation time. The dashed line indicates the Bray-Curtis dissimilarity between two communities. The ellipse indicates a cluster. There was a statistically significant difference (ANOSIM test, P value < 0.05) between two clusters. Incubation experiment of sample from (a) site P1 (5 m water depth); (b) site S2 (5 m water depth); (c) site S2 (69 m water depth); (d) site C3 (5 m water depth); (e) site B4 (5 m water depth); (f) site B4 (200 m water depth).