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Tethys Visits the Great Lakes

Detailed Description

Long-range autonomous underwater vehicle 'Tethys' upon retrieval after a 400 km mission in Lake Michigan to collect the environmental DNA (bits of DNA drifting in the environment) of pelagic prey fish through a partnership between the USGS Great Lakes Science Center and the Monterrey Bay Aquarium Research Institute. Photo Credit: Peter Esselman, USGS.


Public Domain.