DNA breakthrough reveals genetic diversity of invasive fish

Environmental DNA (eDNA) is unveiling the genetic diversity of invasive fish, revolutionising conservation efforts

Researchers are using this groundbreaking technique to safeguard biodiversity and understand species dynamics.

Unlocking genetic insights through eDNA

Environmental DNA (eDNA) transforms ecological research by tapping into genetic material shed by species into their surroundings. This genetic treasure trove reveals a species’ presence and provides critical insights into population genetics.

A crime scene investigator for biodiversity

The technique mirrors forensic science, enabling scientists to trace the source of invasive species and halt further incursions. David Lodge, the study’s co-author, likens the approach to what forensic scientists do at crime scenes.

Genetic diversity of invasive fish: An overview

In a study spanning the Great Lakes and the New York Finger Lakes, researchers successfully applied eDNA sampling to invasive round goby fish. By analyzing nuclear genetic variations, they uncovered the genetic diversity within this species, aiding natural resource management.

eDNA offers a non-invasive window into the demographics of endangered species. Researchers can now identify declining populations and their loss of genetic diversity earlier without disturbing rare and vulnerable animals.

Future prospects for genomics in aquatic research

This breakthrough holds immense promise for genomics in aquatic research. Jose Andrés, a Cornell Atkinson faculty fellow, envisions using this technique to study elusive species in marine environments, revolutionizing marine conservation efforts.

Fueled by support from the U.S. Department of Defense, the National Oceanic and Atmospheric Administration, the National Science Foundation, and Cornell Atkinson, this DNA revolution is a game-changer in the quest to protect our planet’s biodiversity.