Fig. 5
(A) The number of OTUs that significantly differ in abundance, either positively (grey or colored) or negatively (white) in response to environmental and host predictors. Positive responses of differentially abundant OTUs are displayed separately for each species in a Venn diagram, where overlapping areas indicate the number of OTUs that show an increase in abundance in both species. In forest plots, the ten most abundant differentially abundant OTUs in relation to trawling intensity (B), median grain size (C), condition factor (D), age (E) and species (F–H) are illustrated. For each differentially abundant OTU, a negative fold change represents a negative response and a positive fold change value a positive response. The bars indicate the 95% confidence intervals.
