Photos

Ballast Water

March 20, 2017
Biologist descending gangway on ship

Kim Holzer / Smithsonian Environmental Research Center

SERC marine biologist Jenny Carney descends the gangway of a giant bulker ship in Virginia. When ships export coal and other goods, they return loaded with ballast water from foreign ports—and often inadvertently bring invasive species with them.

Credit: Kim Holzer / Smithsonian Environmental Research Center

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