Scientists at work: We use environmental DNA to monitor how human activities affect life in rivers and streams
- Written by Marie Simonin, Research Scientist, Inrae
Environmental DNA is a promising tool for tracking species in freshwater ecosystems like Oregon's Elkhorn Creek.Greg Shine, BLM/Flickr, CC BYRivers, lakes and wetlands cover just 1% of the Earth’s surface but are home to nearly 10% of all species, including fish, mammals, birds, insects and crustaceans. But these rich, diverse ecosystems...

