Fig. 4
From: Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets
The insect meal diet markedly modulated the salmon intestinal microbiota in both digesta (a) and mucosa (b), irrespective of intestinal segments. The dimensionality reduction was performed using a compositional beta-diversity metric called robust Aitchison PCA and visualized by the EMPeror [90]. The height-to-width ratio of the PCoA plot was set to reflect the ratio between the corresponding eigenvalues as recommended [91]. Abbreviations: REF, reference diet; IM, insect meal diet; PID, proximal intestine digesta; DID, distal intestine digesta; PIM, proximal intestine mucosa; DIM, distal intestine mucosa; PCo, principal coordinate