In a new study, 91̽»¨ researchers collected salmon DNA in air filters near a stream, showing that eDNA can move between air and water, a possibility scientists hadn’t accounted for that opens new avenues for monitoring aquatic species.


In a new study, 91̽»¨ researchers collected salmon DNA in air filters near a stream, showing that eDNA can move between air and water, a possibility scientists hadn’t accounted for that opens new avenues for monitoring aquatic species.

A project led by the 91̽»¨used genetic sleuthing to study how salmon were affected by two major culvert replacements near the city of Bellingham. One project, a major upgrade under Interstate-5, had a big impact, while the other old culvert may have been less of a barrier to fish. Authors from the 91̽»¨and NOAA are studying the use of eDNA in future environmental impact reporting.

A new effort at the 91̽»¨ aims to accelerate eDNA research by supporting existing projects and building a network of practitioners to advance the nascent field.