Principal component analysis (PCA) of freshwater macroinvertebrate OTUs detected with the fwh1 (A) and fwh2 (B) primer set in the three Romanian river samples. PCR replicates of the identical samples are shown with the same colour.

  Part of: Vamos E, Elbrecht V, Leese F (2017) Short COI markers for freshwater macroinvertebrate metabarcoding. Metabarcoding and Metagenomics 1: e14625.