Fig. 3
From: Microbial community profiles grown on 1020 carbon steel surfaces in seawater-isolated microcosm
a Principal component analysis (PCA) calculated using Bray-Curtis measurements. Correlated negative variables are arranged on opposite sides of the chart. The points referring to the indices of each sample are shown in the form of a diamond. Those highlighted in blue are the positions of the taxonomic members in concerning to the axes. b Non-metric multidimensional scale (NMDS) showing differences in microbial communities among the samples of the four analyzes. The distance between the points indicates the degree of difference between the variables. The ellipses indicate the approximation of the analyzed periods