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Dr. Marshall Bowles

Archived Page

This web page has not been updated since the former colleague left MARUM.

 

Education

  • Ph.D., 2011 University of Georgia
  • M.E.M., 2005 Duke University
  • B.Sc., 2003 James Madison University

Research Interests

I am broadly interested in biotic and abiotic influences on prokaryotic cycling of C, N, and S in the marine environment. I typically integrate microbiological, geochemical, and rate analysis techniques to develop a holistic understanding of microbiological processes in marine sediments.

Publications

  • Bowles, M.W., Hunter, K.S., Samarkin, V.A., Joye, S.B. (in press) Variations in geochemical signatures and microbial activity within and between diverse cold seep habitats along the lower continental slope of the Gulf of Mexico. Deep Sea Research II. Topical Studies in Oceanography
  • Inagaki, F., Hinrichs, K.-U., Kubo, Y., Bowles, M.W., et al. (2015) Exploring deep microbial life in coal-bearing sediment down to ~2.5 km below the ocean floor. Science 349 (6246): 420-424, doi: 10.1126/science.aaa6882
  • Meador, T.B., Bowles, M.W., Lazar, C.S., Zhu, C., Teske, A., Hinrichs, K.-U., (2015) The archaeal lipidome in estuarine sediment dominated by members of the Miscellaneous Crenarchaeotal Group. Environmental Microbiology 17(7): 2441-2458, doi:10.1111/1462-2920.12716
  • Bowles, M.W., Mogollon, J.M., Kasten, S., Zabel, M., and Hinrichs, K.-U. (2014) Global rates of marine sulfate reduction and and implications for sub-sea-floor metabolic activities. Science, doi:10.1126/science.1249213
  • Dekas, A.E., Chadwick, G.L., Bowles, M.W., Joye, S.B., and Orphan, V.J. (2013) Spatial distribution of nitrogen fixation in methane seep sedment and the role of ANME archaea. Environmental Microbiology, doi:10.1111/1462-2920.12247
  • Bowles, M.W., Nigro, L.M., Teske, A.P., and Joye, S.B. (2012) Denitrification and environmental factors influencing nitrate removal in Guaymas Basin hydrothermally-altered sediments. Frontiers in Microbiology. 3:377, doi:10.3389/fmicb.2012.00377.
  • Bowles, M.W., Samarkin, V.A., and Joye, S.B. (2011) Improved measurement of microbial activity in deep-sea sediments at in situ pressure and gas concentration. Limnology and Oceanography Methods. 9: 499-506.
  • Bowles, M.W., Samarkin, V.A., and Joye, S.B. (2011) Weak coupling between sulfate reduction and the anaerobic oxidation of methane in methane-rich seafloor sediments in ex situ incubations. Geochimica et Cosmochimica Acta. 75: 500-519, doi:10.1016/j.gca.2010.09.043.
  • Bowles, M.W. and Joye, S.B. (2010) High rates of denitrification and nitrate removal in cold seep sediments. ISME Journal. doi:10.1038/ismej.2010.134
  • Joye, S.B., Bowles, M.W., Samarkin, V.A., Hunter, K.S., Niemann, H. (2010) Biogeochemical signatures and microbial activity of different cold-seep habitats along the Gulf of Mexico deep slope. Deep Sea Research II. Topical Studies in Oceanography, 57(21-23): 1990-2001.
  • Samarkin, V.A., Madigan, M.M., Bowles, M.W., Casciotti, K.L., McKay, C.P., Joye, S.B. (2010) Abiotic nitrous oxide emission from the hypersaline Don Juan Pond in Antarctica. Nature Geosciences, 3: 341-344.
  • Roberts, H., Carney, R., Kupchik, M., Fisher, C., Nelson, K., Becker, E., Goehring, L., Lessard-Pilon, S., Telesnicki, G., Bernard, B. Brooks, J., Bright, M., Cordes, E. Hourdez, S., Hunt, J., Shedd, W., Boland, G., Joye, S., Samarkin, V., Bernier, M., Bowles, M., MacDonald, I., Niemann, H., Petersen, C., Potter, J. (2007), Alvin Explores the Deep Northern Gulf of Mexico Slope, Eos Trans. AGU, 88(35).