Fig. 5

Impact of FMT on antibiotic perturbed and unperturbed gut microbiota. a-b Line plot presenting the mean Bray-Curtis similarity to the donor inoculum and mean Shannon’s index of diversity, respectively, for the different treatment groups; A⁻/FMT⁻, A⁺/FMT⁻, A⁻/FMT^G, A⁺/FMT^G, A⁻/FMT^W and A⁺/FMT^W over 15 days post FMT (mean from n = 4 fish). c PCoA plot representing Bray-Curtis similarities, comparing global gut bacterial communities between the treated (antibiotic and/or FMT) and untreated fish to the donor inoculum at Day 2 post FMT, with superimposed wedges indicating the relative abundance of the 12 most abundant ASVs in the RNA component of the donor inoculum. Wedge size is proportional to its rank order across all samples, whereby large wedges indicate those ASVs that had the greatest ranked abundance between samples, and the smallest wedges having the lowest ranked abundance between samples