Fig. 3
From: Host habitat is the major determinant of the gut microbiome of fish
Fish gut microbiota is determined by the host habitat. a Analysis of the contributions of host environmental or genetic factors to the fish gut microbiota. Variation was determined by between-sample unweighted or weighted UniFrac distances. The size effect and statistical significance were calculated by ANOSIM using the R “vegan” package in the QIIME pipeline. b PCoA of unweighted UniFrac distances for 227 fish samples (ANOSIM, R = 0.47, p < 0.001) and boxplots illustrating PC1 coordinates of freshwater and seawater fish. The center line shows the median, the boxes cover the 25th to 75th percentiles, and the whiskers extend to 1.5× the interquartile range c Bar charts of the relative abundance of bacterial phyla in the gut microbiota of fish from different habitats. d OTU network-based analysis of the microbial communities in fish from different habitats. The edges connecting nodes representing fish samples (circles) to species-level OTUs in a particular sample are colored according to the host habitat type (edge-weighted spring embedded model in Cytoscape v. 3.0.1). FWF freshwater fish, SWF seawater fish