Ballast Water

Kim Holzer / Smithsonian Environmental Research Center
March 20, 2017
Media Photo/Video

Photos for News Media Use Only

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