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Double Team

WHOI postdoctoral scholar Tim Shanahan and MIT/WHOI student Kim Popendorf—both from the Department of Marine Chemistry and Geochemistry—work to filter plankton from water samples in the main lab of the research vessel Oceanus in April 2008. On an expedition led by marine chemist Ben Van Mooy, researchers examined the communities of plankton that they found in the North Atlantic’s Sargasso Sea, as well as the water chemistry (particularly nutrients) that promoted or inhibited the growth of various species. The cruise was the first ever for Shanahan. (Photo by Ben van Mooy, Woods Hole Oceanographic Institution)