Bonnie Chang

Research Scientist

BonniePh.D., Oceanography, University of Washington, 2010
B.S., Chemistry, University of Virginia, 2001

Office: 170 Wallace Hall
Phone: 206-685-9613

Research interests

  • Marine nitrogen cycling and its link to oceanic productivity
  • Nitrogen fixation and denitrification in oxygen deficient zones (eastern tropical North and South Pacific, Arabian Sea)
  • Effect of sedimentary nitrogen cycling on the isotopic composition of marine nitrate
  • Origin and air-sea flux of nitrous oxide in the Atlantic and Pacific Oceans


Shah V., Chang B. X, Morris R. M.  2016.  Cultivation of a chemoautotroph from the SUP05 clade of marine bacteria that produces nitrite and consumes ammonium.  The ISME Journal.  doi: 10.1038/ismej.2016.87

Chang B. X, Rich J. J., Jayakumar A., Naik H., Pratihary A, Keil R. G., Ward B. B., Devol A. H.  2014.  The effect of organic carbon on fixed nitrogen loss in the eastern tropical South Pacific and Arabian Sea oxygen deficient zones.  Limnology & Oceanography.  DOI: 10.4319/lo.2014.59.4.1267

Morales L. V., Granger J., Chang B. X, Prokopenko M. G., Plessen B., Sigman D. M.  2014.  Elevated 15N/14N in particulate organic matter, zooplankton, and diatom frustule-bound nitrogen in the ice covered water column of the Bering Sea eastern shelf.  Deep Sea Research Part II.  DOI: 10.1016/j.dsr2.2014.05.008

Prokopenko M. G., Hirst M. B., De Brabandere L., Berelson W. M., Lawrence D. J., Granger J., Chang B. X, Dawson S., Crane E. J., Chong L., Thamdrup B., Sigman D. M.  2013.  Thioploca/anammox consortia drive nitrogen losses in anoxic marine sediments.  Nature.  DOI: 10.1038/nature12365.

Chang B. X, Devol A. H., Emerson S. R.  2012. Fixed nitrogen loss from the eastern tropical North Pacific and Arabian Sea oxygen deficient zones determined from measurements of N2:Ar.  Global Biogeochemical Cycles.  DOI: 10.1029/2011GB004207

DeVries T., Deutsch C., Primeau F., Chang B. X, Devol A. H.  2012.  Global rates of water-column denitrification derived from nitrogen gas measurements.  Nature Geoscience.  DOI: 10.1038/ngeo1515

Bourbonnais A., Juniper S. K., Butterfield D. A., Devol A. H., Kuypers M. M. M., Lavik G., Hallam S. J., Wenk C. B., Chang B. X., Murdock S. A., Lehmann M. F.  2012.  Activity and abundance of denitrifying bacteria in the subsurface biosphere of diffuse hydrothermal vents of the Juan de Fuca Ridge.  Biogeosciences.  DOI: 10.5194/bg-9-4661-2012

Chang B. X, Devol A. H., Emerson S. R.  2010.  Nitrogen gas and denitrification in the eastern tropical South Pacific oxygen deficient zone.  Deep-Sea Research Part I.  DOI: 10.1016/j.dsr.2010.05.009

Ward B. B., Devol A. H., Rich J. J., Chang B. X, Bulow S. E., Naik H., Pratihary A., Jayakumar A.  2009.  Denitrification as the dominant nitrogen loss process in the Arabian Sea.  Nature.  DOI: 10.1038/nature08276

Chang B. X and Devol A. H.  2009.  Seasonal and spatial patterns of sedimentary denitrification in the Chukchi Sea.  Deep Sea Research Part II. DOI: 10.1016/j.dsr2.2008.10.024  

Ullman W. J., Chang B., Miller D. C., Madsen J. A.  2003.  Groundwater mixing, nutrient diagenesis, and discharges across a sandy beachface, Cape Henlopen, Delaware (USA).  Estuarine, Coastal, and Shelf Science.  DOI: 10.1016/s0272-7714(02)00398-0