eDNA can be used to monitor species throughout the year and can be very useful in conservation monitoring.[16][17] eDNA analysis has been successful at identifying many different taxa from aquatic plants,[18] fishes,[17] mussels,[16] fungi [19][20] and even parasites.[21][7] eDNA has been used to study species while minimizing any stress inducing human interaction, allowing researchers to monitor species presence at larger spatial scales more efficiently.[22][23] The most prevalent use in current research is using eDNA to study the locations of species at risk, invasive species, and keystone species across all environments.[22] eDNA is especially useful for studying species with small populations because eDNA is sensitive enough to confirm the presence of a species with relatively little effort to collect data which can often be done with a soil sample or water sample.[10][22] eDNA relies on the efficiency of genomic sequencing and analysis as well as the survey methods used which continue to become more efficient and cheaper.[24] Some studies have shown that eDNA sampled from stream and inshore environment decayed to undetectable level at within about 48 hours.[25][26]