Non-metric multi-dimensional scaling (nMDS) plot analyses.

<p>Plots are constructed using Jaccard similarity matrices from; (<b>A</b>) presence-absence of Operational Taxonomic Units (OTU)-based diversity between the global eDNA and eRNA datasets collected on yachts versus motorboats, and (<b>B</b>) taxonomic composition (presence-absence) based on OTU data aggregated at Phylum-level, split into eDNA-only, eDNA/eRNA-shared, and eRNA-only for samples from yachts and motorboats. Sample numbers are indicated in parentheses (refer to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0187636#pone.0187636.t001" target="_blank">Table 1</a>).