Discussion
We provide the first comprehensive evaluation of the capacity of a
variety of porous materials to passively collect environmental DNA from
a marine environment. Further, we also test the importance of submersion
time. We reveal that numerous inexpensive materials are highly effective
for the passive collection of eDNA. Remarkably, we also show that
passive eDNA collection can be as effective as conventional water
filtering and achieved quickly; in as little as five minutes.