Freshwater mollusc community screening - Classical and eDNA monitoring methods to detect rare, indicator and invasive species.

Freshwater habitats and their quality have always been of utmost importance for human subsistence. Water quality assessment is an important tool, covering biological, chemical and hydromorphological aspects. Bioindicators such as the bivalves can be used as evidence for good water quality, but widespread groups such as species of the family Sphaeriidae Deshayes,1855 (1822) and genus Pisidium/Euglesa/Odhneripidisium also known as 'pea clams' are poorly known and lack taxonomic expertise.