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Tag: eDNA

Researchers use eDNA to detect great white sharks

Researchers use eDNA to detect great white sharks

Science
Sept. 14 (UPI) -- Scientists can now detect the presence of white sharks using environmental DNA, or eDNA. Environmental DNA describes DNA strands found in the environment, not collected directly from a species' body. Increasingly, researchers are turning to genetic markers to identify the presence of species in the environment, but until now, scientists struggled to isolate an eDNA signature for white sharks. Through a series of trial and error, scientists were able to develop a new protocol for identifying white shark eDNA in marine samples. Researchers from the University of California, Santa Barbara, California State University Long Beach, U.S. Geological Survey and Central Michigan University isolated identifiable genetic markers found in shark tissue. To test their protocol, scienti...