Skidaway Institute of Oceanography
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William Savidge

Dr. William Savidge
Assistant Professor
Skidaway Institute of Oceanography
10 Ocean Science Circle
Savannah, Georgia 31411
Telephone: (912) 598-3348
Fax: (912) 598-2310

Ph.D., Chemical Oceanography, North Carolina State University, 2001
M.S., Biological Oceanography, Oregon State University, 1986
B.S., Zoology, Duke University, 1981       

Local Pages:
Urban Runoff

PhD Student Opportunity:

Ph.D.Assistantship, Marine Biogeochemistry and Engineering

We are looking for a highly motivated individual to undertake research leading to a Ph.D. in Earth Sciences. This person will help develop a novel instrumentation system for making automated biogeochemical measurements in marine sediments.  Our group has been funded to produce a field-deployable porewater sampling device coupled to an underwater mass spectrometer. This system will sustainably measure a full suite of biogenic gases (e.g., O2, CO2, N2, Ar, CH4, H2S) across a vertical gradient and calculate in situ reaction rates based on simultaneous estimates of gas concentrations and vertical advective porewater exchange. The student will be expected to lead the Boston University effort in the design and development of the instrument. This person will also help create an online instruction manual with videos explaining how to build the porewater sampling system, how to calibrate and test the mass spectrometer, etc., with the goal of propagating this technology to the wider community. This person will be based at Boston University in the Department of Earth and Environment and will also work collaboratively and spend time with groups at the SRI International in St. Petersburg, FL, and Skidaway Institute of Oceanography in Savannah, GA.

The start date is negotiable but we expect the successful candidate to have enrolled by January 2015. Applicants must have a degree in oceanography, engineering, chemistry or a closely related field. MS graduates preferred. Experience in field data collection and analysis is required. Experience in a chemistry and/or engineering lab desired. Successful applicants will be self-motivated and able to work well in teams.

Please send statement of interest, CV, copies of transcripts, GRE Scores, and contact information for at least three references to:

Dr. Robinson Fulweiler

 Research Interests and Projects 

Interactions between infaunal populations and communities and geochemical processes in marine sediments
Oceanographic time series
Permeable sediment biogeochemistry
Ecophysiology of Spartina alterniflora
Ecological applications of stable isotopes

Current Projects:
  • Collaborative Research: Development of an in situ porewater sampler coupled to an underwater mass spectrometer for high-resolution biogenic gas measurements in permeable sediments (with RW Fulweiler [Boston U] and RT Short and A Cardenas-Valencia [SRI]).
  • Tempo and Mode of salt marsh exchange (with J. Brandes, A. Stubbins, and C.R. Edwards)
  • Partitioning of organic inputs among organic and mineral phases during early diagenesis.  American Chemical Society Petroleum Research Fund.
  • Collaborative Research: Interactions Among Deposit-Feeding, Organic Matter Diagenesis and Animal Nutrition. NSF Chemical Oceanography (with Tamara Pease, UT-Brownsville).
  • Benthic Observatory and Technology Testbed on the Mid Shelf – Understanding Processes.  NSF OTIC.  (with D Savidge, J Nelson, R Jahnke, A Gargett [ODU], G Voulgaris [SC], T Short [SRI]).
  • Effects of canal discharge on oxygen cycles on marsh platforms and its potential consequences for nekton use of marsh habitat.   NOAA Coastal Incentive Grant. (with J Blanton).
  • Funds in support of geochemistry symposium.  Geochemical Society
  • Symposium: Unknown Knowns and Known Unknowns, Chemical Oceanography in a Changing World.  NSF Chemical Oceanography (with Jay Brandes)
  • MRI: Acquisition of an Isotope-Ratio Mass Spectrometer Facility for East Georgia.  NSF MRI (with Jay Brandes, S Wakeham, M Frischer)
  • FSML: Acquisition of Controlled Environmental Spaces for Skidaway Institute of Oceanography. NSF FSML.  (with J Sanders).
 Selected Publications 
Savidge, D. K., and W. B. Savidge. 2014. Seasonal export of South Atlantic Bight and Mid-Atlantic Bight shelf waters at Cape Hatteras. Continental Shelf Research 74:50-59. doi: 10.1016/j.csr.2013.12.008
Bell, R. J., W. B. Savidge, S. K. Toler, R. H. Byrne, and R. T. Short. 2012. In situ determination of porewater gases by underwater flow-through membrane inlet mass spectrometry. Limnology and Oceanography Methods 10:117-128. doi: 10.4319/10m.2012.10.117
Savidge, W. B., A. Gargett, R. A. Jahnke, J. R. Nelson, D. K. Savidge, R. T. Short, and G. Voulgaris. 2008. Forcing and dynamics of seafloor-water column exchange on a broad continental shelf. Oceanography 21: 179-184.
Savidge, W. B., R. A. Jahnke, J. R. Nelson, D. K. Savidge, G. Voulgaris, R. T. Short, and A. Gargett. 2007. Development of a coastal ocean benthic observatory to study sediment-water exchange processes. In Chemical Pollution and Environmental Changes, ed. S. Tanabe, H Takeoka, T. Isobe and Y. Nishibe. Tokyo: Universal Academy Press, 383-392.
Savidge, W.B. and N.E. Blair. 2005. Intramolecular carbon isotopic composition of monosodium glutamate:biochemical pathways and product source identification.J. Agric. Food Chem. 53: 197-201.
Savidge, W. B., and N. E. Blair. 2004. Patterns of intramolecular isotopic heterogeneity within the amino acids of autotrophs and heterotrophs. Oecologia 139:178-189.
Savidge, W. B., and N. E. Blair. 2004. Seasonal and within-plant gradients in the intramolecular carbon isotopic composition of amino acids of Spartina alterniflora. Journal of Experimental Marine Biology and Ecology 308:149-165.
Sharp, J. H., A. Y. Beauregard, D. Burdige, G. Cauwet, S. Curless, R. Lauck, K. Nagel, H. Ogawa, A. E. Parker, O. Primm, M. Pujo-Pay, W. B. Savidge, S. Seitzinger, G. Spyres, and R. Styles. 2004. A direct instrument comparison for measurement of total dissolved nitrogen in seawater. Marine Chemistry 84:181-193.

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