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OSU researchers find eDNA method trumps electrolysis in fish counts

 

January 27, 2021



By Molly Rosbach

Oregon State University Writer

Delivering a minor electric shock into a stream to reveal any fish lurking nearby may be the gold standard for detecting fish populations, but it’s not much fun for the trout.

Scientists at Oregon State University have found that sampling stream water for evidence of the presence of various species using environmental DNA, known as eDNA, can be more accurate than electrofishing, without disrupting the fish.

“It’s revolutionizing the way we do fish ecology work,” said Brooke Penaluna, a research fish biologist with the U.S. Departmen...



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