Order-level relative abundances of individual fish microbiomes. Relative abundances of OTUs are summarized at the order level for each fish in the exposure experiment. Taxa (rows) were clustered and ordered by single-linkage hierarchical clustering based on Euclidean distances of day 7 cells. White cells in the heat map indicate no OTUs assigned to an order. Taxonomic assignment is by the RDP classifier trained on the Greengenes database, and each row is presented as phylum, class, order. Columns are B baseline, C control, S solvent, L low triclosan exposure history, and H high triclosan exposure history. Scale bar fractional relative abundance.