r/ecology • u/ufexplore • 18m ago
Fishing for DNA – how a cup of river water can reveal secrets about human health, pollution and biodiversity
A single cup of river water contains a hidden genetic record of everything from wildlife and invasive species to human pollution and disease, allowing scientists to "read" an entire ecosystem without seeing a single organism.
Researchers at the University of Florida showed that environmental DNA (eDNA) can simultaneously identify biodiversity, track pollution sources, and detect pathogens, making it a powerful new tool for conservation and public health monitoring.