Insights into the representativeness of biodiversity assessment in large reservoir through eDNA metabarcoding

Fig 2. Non-fish taxa distribution and frequency across the Três Irmãos (TI) reservoir. Heatmap illustrating the distribution of non-fish Molecular Operational Taxonomic Units (MOTUs) identified by eDNA across sampling stations in the Três Irmãos (TI) reservoir. The TI reservoir is shown at the top with all sampled stations C1-C4 and C6-C15. Stations abbreviations as in S1 Table. Hydroelectric power plants Três Irmãos (TI) and Nova Avanhandava (NA) are shown at the extremes of the reservoir. The yellow to red color spectrum represents the log10 transformation of the average frequency. Solid black lines on the left delineate the observed phyla. https://doi.org/10.1371/journal.pone.0314210.g002 PLOS ONE eDNA metabarcoding reservoir PLOS ONE | https://doi.org/10.1371/journal.pone.0314210 January 24, 2025 9 / 22