Figure 3.

Relative abundances of the 7 most prevalent Vibrio ribotypes (based on 99% 16S rRNA gene sequence similarity) from obligate marine blood-feeders including the isopods Elthusa and Nerocila (Nero), copepod Lernanthropus (Lerna), and leeches Branchellion, Ostreobdella, and Pterobdella, compared to non-blood-feeding crustaceans (Non-BF), swabs of fish skin, and seawater (SW). Bars are scaled according to percent abundance of each Vibrio ribotype as a function of the entire microbial community in that specimen (for reference, occasional numbers indicate the % abundance of that bar). A total of 135 Vibrionaceae ribotypes were recovered from all samples in total, but the 7 portrayed here accounted for 80% of the total Vibrionaceae diversity. See Supplementary Figure S1 for the phylogenetic position of these ribotypes. Note the pooling of Vibrio ribotypes 19,850 with 213,579 (+) common only in the Nerocila specimens via amplicon sequencing. Occasional symbols note distinction within OBF taxa, including Pterobdella occidentalis recovered from the goby (#), and P. abditovesiculata from Hawaii (*), as well as Branchellion collected from rays other than the pacific ray (°), and Elthusa collected from killifish (+).