Figure 2.

Mean relative abundance data of Vibrio operational taxonomic units (OTUs) on PE, PS, and water during an in situ incubation experiment covering the Warnow river (Stadthafen) and two Baltic Sea coastal station (Heiligendamm and Hohe Dune). Plastic samples were taken after 1, 5, and 10 h. Vibrio abundances within the water were fractionated into those on the seston-attached fraction (>3 µm) and in the free-living fraction (3–0.22 µm). Colors indicate different Vibrio OTUs based on 97% sequence similarity. Error bars give the standard deviation (SD) of the mean aggregated Vibrio abundances.