Kim Holzer / Smithsonian Environmental Research Center
SERC biologists Jenny Carney (left) and Kim Holzer (right) check for potentially invasive species in the ballast water of a bulk cargo ship in Virginia. Despite ships’ best efforts to combat them, in the last decade the concentrations of potentially invasive species arriving in Chesapeake Bay through ballast water has spiked.
Credit: Kim Holzer / Smithsonian Environmental Research Center
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