Fishing for genes via eDNA

Interesting work in the real world with DNA…

Conservation & Science

Just as steelhead trout migrate from saltwater to freshwater and back, Environmental Sample Processors (ESPs)—first developed by the Monterey Bay Aquarium Research Institute (MBARI) for studies in the ocean—have been getting a lot of use in freshwater over the last five years.

Kevan Yamahara and Doug Pargett install a pump system downstream of a fish trap in Scott Creek. The pump system feeds water to an Environmental Sample Processor to sample the DNA of fish in the stream. Photo © 2019 MBARI/Kim Fulton-Bennett

This spring, MBARI’s ESP team installed an instrument to collect samples of “environmental DNA” from a coastal creek just north of Monterey Bay. Researchers will use these samples to track populations of threatened steelhead trout, endangered coho salmon, and invasive species in the creek.

In the process, they could help revolutionize environmental monitoring and fisheries management nationwide.

The research is a joint project of MBARI and the

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