Fig. 3From: Difference in composition and functional analysis of bacterial communities between Mytilus galloprovincialis gills and surrounding water in a brackish inshore bay, analyzed by 16S rDNA multi-amplicon sequencingMultivariate analysis and species diversity plots for the bacterial communities in gill tissues and seawater samples. Principal Component Analysis (PCoA) (A). Box plot of alpha diversity using the Shannon index (B). The significance level (Mann-Whitney test) is reported above the B graphBack to article page