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Co-occurrence networks of bacterial communities in different types of industrial polluted sediments based on correlation analysis. The nodes in network (a) are colored by phylum. The nodes in network (b) are colored by modularity class. The connections indicate strong (spearman’s ρ ≥ 0.7) and significant (P < 0.05) correlations. The size of each node is proportional to the relative abundance of specific genus
