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Marine Sciences Division

Nicholas Ward

Marine Sciences Laboratory
Pacific Northwest National Laboratory
1529 West Sequim Bay Road
Sequim, Washington 98382


Nick joined the Pacific Northwest National Laboratory in 2016 as a Research Scientist at the Marine Sciences Laboratory in Sequim, Washington. Nick manages the Mercury Analytical Laboratory and associated projects focused on monitoring trace metal and mercury levels and speciation in a variety of environmental and man-made settings (e.g. rivers/oceans/reservoirs, factories, mines, and wastewater plants) and matrices (e.g. water, soils/sediments, and biological tissue). Nick is also responsible for leading research aimed at understanding how biogeochemical and biological processes interact along the interface of terrestrial and aquatic ecosystems, particularly with respect to global carbon cycling. More information about Nick’s research can be found here:

Research Interests

  • Biogeochemistry and environmental “omics”
  • Ecosystem dynamics, sensitivity, and resilience
  • Sustainable natural resource management
  • Hydrology and hydrodynamics

Education and Credentials

  • 2017-present Affiliate Assistant Professor, University of Washington, School of Oceanography, Seattle, WA
  • 2016 Research Scientist, University of Florida, Whitney Lab for Marine Bioscience, St. Augustine, FL
  • 2014-2016 Postdoctoral Associate, University of Florida, Dept. of Geological Sciences, Gainesville, FL
  • 2014 Ph.D. Chemical Oceanography, University of Washington, School of Oceanography, Seattle, WA
  • 2010 M.S. Chemical Oceanography, University of Washington, School of Oceanography, Seattle, WA
  • 2008 B.S. Environmental Systems, University of California San Diego, La Jolla, CA
  • 2007 Summer Student Fellow, Woods Hole Oceanographic Institution, Woods Hole, MA
  • 2006-2008 Research Assistant, Scripps Institution of Oceanography, La Jolla, CA

Affiliations and Professional Service

  • American Association for the Advancement of Science
  • American Geophysical Union
  • Association for the Sciences of Limnology and Oceanography
  • National Science Teachers Association (2012-2016)

Awards and Recognitions

  • 2017 ASLO Aquatic Sciences Meeting Early Career Scientist Travel Grant
  • 2012 National Science Foundation GK-12 teaching fellowship
  • 2008 UCSD Sports Clubs Male Athlete of the Year
  • 2007 UCSD Dean of Physical Sciences Undergraduate Award for Excellence
  • 2007 National Science Foundation REU Summer Student Fellowship
  • 2004 Antone Ara Bia Scholarship

PNNL Publications


  • Ward ND, HO Sawakuchi, and JE Richey. 2018. "The Amazon River's Ecosystem-Where Land Meets the Sea." Eos 99(January 18, 2018):, doi:10.1029/2018EO088573
  • Galeron MA, O Radakovitch, B Charrire, F Vaultier, J Volkman, TS Bianchi, ND Ward, PM Medeiros, HO Sawakuchi, S Tank, P Kerherv, and JF Rontani. 2018. "Lipoxygenase-induced autoxidative degradation of terrestrial particulate organic matter in estuaries: A widespread process enhanced at high and low latitude." Organic Geochemistry 115:78-92.  doi:10.1016/j.orggeochem.2017.10.013


  • Ward ND, TS Bianchi, PM Medeiros, M Seidel, JE Richey, RG Keil, and HO Sawakuchi. 2017. "Where carbon goes when water flows: Carbon cycling across the aquatic continuum." Frontiers in Marine Science 4:Article No. 7. 
  • Ward ND, TS Bianchi, PM Medeiros, M Seidel, RG Keil, and C Robinson. 2017. Integrative Research on Organic Matter Cycling Across Aquatic Gradients.  Frontiers Media SA, Lausanne, Switzerland.  doi:10.3389/978-2-88945-212-5
  • Ward ND. 2017. "Editorial: Integrative Research on Organic Matter Cycling Across Aquatic Gradients." Frontiers in Marine Science 4:Article No. 131. 
  • Bianchi TS, D Butman, PA Raymond, ND Ward, R Kates, K Flessa, H Zamora, A Arellano, J Ramirez, and E Rodriguez. 2017. "The Experimental Flow to the Colorado River Delta: Effects on Carbon Mobilization in a Dry Watercourse." Journal of Geophysical Research. Biogeosciences 122(3):607-327.  doi:10.1002/2016JG003555
  • Doherty M, P Yager, MA Moran, V Coles, CS Fortunato, A Krusche, PM Medeiros, J Payet, JE Richey, B Satinsky, HO Sawakuchi, ND Ward, and B Crump. 2017. "Bacterial biogeography across the Amazon river-ocean continuum." Frontiers in Microbiology 8:Article No. 882.  doi:10.3389/fmicb.2017.00882
  • Duan S, Y He, SS Kaushal, TS Bianchi, ND Ward, and L Guo. 2017. "Impact of wetland decline on decreasing dissolved organic carbon concentrations along the Mississippi River continuum." Frontiers in Marine Science 3:Article No. 280.  doi:10.3389/fmars.2016.00280
  • Gagne-Maynard W, ND Ward, RG Keil, HO Sawakuchi, A Cunha, V Neu, D Brito, D Less, J Diniz, A Valerio, M Kampel, A Krusche, and JE Richey. 2017. "Evaluation of primary production in the lower Amazon River based on a dissolved oxygen stable isotopic mass balance." Frontiers in Marine Science 4:Article No. 26. 
  • Joshi I, E D'Sa, C Osburn, TS Bianchi, D Ko, D Oveido-Vargas, A Arellano, and ND Ward. 2017. "Assessing chromophoric dissolved organic matter (CDOM) distribution, stocks, and fluxes in Apalachicola Bay using combined field, VIIRS ocean color, and model observations." Remote Sensing of Environment 191:359-372.  doi:10.1016/j.rse.2017.01.039
  • Satinsky B, C Smith, S Sharma, ND Ward, A Krusche, JE Richey, P Yager, B Crump, and MA Moran. 2017. "Patterns of Bacterial and Archaeal Gene Expression Through the Lower Amazon River." Frontiers in Marine Science 4:Article No. 253.  doi:10.3389/fmars.2017.00253
  • Sawakuchi HO, V Neu, ND Ward, MDLC Barros, A Valerio, W Gagne-Maynard, A Cunha, D Less, J Diniz, D Brito, A Krusche, and JE Richey. 2017. "Carbon dioxide emissions along the lower Amazon River." Frontiers in Marine Science 4:Article No. 76. 
  • Silva B, F Coutinho, G Gregoracci, L Leomil, L Oliveira, A Fres, D Tschoeke, AC Soares, A Cabral, ND Ward, JE Richey, A Krusche, P Yager, C Rezende, C Thompson, and F Thompson. 2017. "Virioplankton assemblage structure in the lower river and ocean continuum of the Amazon." mSphere 2(5):e00366-17.  doi:10.1128/mSphere.00366-17

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Marine Sciences Laboratory
1529 W. Sequim Bay Road
Sequim, WA 98382
Phone: (360) 683-4151
Fax: (360) 681-3699