Figure 6

Longitudinal profile of fish diversity as determined by principal component analysis performed on the eDNA samples from the Rhône River. Scores of the 42 species (A) and 20 successive river sections (B) on the two first principal components, PC1 and PC2 (See Supplementary Table 1 for the names of the successive 20 river sections (A-GE to T-PA) and Supplementary Table 2 for the species names corresponding to the abbreviations).