Fig. 3

Principal component analysis (PCA) of the OTU composition from the intestinal mucus microbiome of fish under different dietary interventions in T2. For clarity, only the centroid of each dietary group is represented. a PCA showing the community centroid positions as well as the dispersion within each diet group (n = 4 per group, where each sample is a pool of two individual fish) using ellipses. b The same PCA is represented on a different scale to illustrate the differential position of each dietary group relative to each other