Supplementary information from Kirschner & Vance et al. (2025) for Gabrielle Vance's doctoral thesis

Supplementary Table 1 - Overview of sampling metadata and sampling sites. (Suppl_Table_1.xlsx) Supplementary Table 2 – Raw assigned ASV Table. Assignment was done using Decipher trained on the MIDORI2 database. Numbers are read numbers for this ASV within this sample. (Suppl_Table_2.xlsx) Supplementary Table 3 – Raw assigned ASV Table after correcting for contamination by removing read numbers found in negative controls from ASVs, as wella s removal of NUMTs. Assignment was done using Decipher trained on the Midori2 database. Numbers are read numbers for this ASV within this sample. (Suppl_Table_3.xlsx) Supplementary Table 4 - Species and ASV richness along the Adriatic-Ligurian MDD. The corrected ASVs are corrected for the number of sites within the basin.(Suppl_Table_4.xlsx) Supplementary Table 5 – Summary of GDM outputs for different models. (Suppl_table_5.xlsx) Supplementary Table 6 - List of Haplotypes, corresponding ASV_IDs, slope of occurrence of the asv and frequency per slope. (Suppl_Table_6.xlsx) Supplementary Figures 4 - 21 - Geographic distribution of different species based on ASV (Amplicon Sequence Variant) detections. The figure presents spatial maps displaying the occurrence of all ASVs across different locations in Northern Italy. The plotted regions include coastal areas and the Po River basin, distinguished by different colors. Longitude (°E) and latitude (°N) coordinates are provided to indicate the spatial extent of the study area. The underlying base map includes hydrological features such as rivers. The species shown did undergo filters, but not all of them were included in intraspecific diversity analyses. (Suppl_Fig_4_21.pdf)