eDNA sample collection on the South Santiam River

Rain or shine our scientists get out in the field to collect eDNA data that could indicate mussel presence. Immediately after a rain event the eDNA in a river may be more dilute than a sample taken after several dry sunny days. We can account for these differences by incorporating variables like season or cumulative rainfall into a modeled estimate of eDNA availability. David Piatt, Ecologist, collects eDNA samples in the South Santiam River.