The Bronk group is focusing on defining the competition between phytoplankton and bacteria for available nitrogen. As part of our study, we are doing experiments with humics, which are the tea colored compounds that run off the land when permafrost melts. These humics can decrease the amount of light in the water, which phytoplankton need, while providing a source of carbon, which bacteria require. As the permafrost melts, we hypothesize that bacteria will be able to outcompete phytoplankton for nitrogen more often.

Name: Deborah Bronk
Occupation: Professor
Organization: The College of William and Mary, Virginia Institute of Marine Science

Gloucester Point, VA
United States

Nitrogen in the Arctic Ocean Ecosystem