Dr. Alex Kolker
Assistant Professor

Mailing Address:
Louisiana Universities Marine Consortium
DeFelice Marine Center
8124 Highway 56
Chauvin, Louisiana 70344

Phone: 985-851-2837

Educational Background

  • Ph.D., 2005, Marine and Atmospheric Sciences
    Stony Brook UniversityState University of New York
  • M.A., 2000, Ecology
    Stony Brook University,State University of New York
  • B.A., 1995
    University of California, Santa Cruz, CA

Research Interests

  • I am interested in the natural, climatic, and anthropogenic processes that govern coastal systems.
  • Paleochannels as pathways for submarine groundwater discharge in the Mississippi River Delta (Funded By NSF, with Tulane and U.N.C. Chapel Hill).
  • Sediment dynamics and biogeochemical cycling in the Wax Lake Delta (Funded by LA Sea Grant, with Brian Roberts- LUMCON; Student: Ciara Chambers -Tulane University)
  • Morphodynamics and Ecological Functioning in the West Bay Diversion (Funded by National Wildlife Federation student; Student: Alex Ameen - Tulane University)
  • Submarine groundwater discharge in deltaic settings (with Tulane University and the University of North Carolina, Chapel Hill)

Current Projects

  • How Atmospheric Centers of Influence Short-Term Sea Level Change (with Stony Brook University)
  • Metagenomics Dynmamics in Oil Impacted and Non-Impacted Marshes in Barataria Bay (with Tulane and Los Alamos National Laboratory).
  • Impacts of Deepwater Horizon spill on the chemistry of coastal wetlands (with Texas A&M; LSU and Georgia Tech)
  • Hurricane impacts on Louisiana's Coast (CREST)
  • The Development of a River Dominated Coastal Wetlands Observatory (Funded by LEAG, with Collaborators at UNO and Texas A&M)
  • Dynamics of the 2011 flood on the Atchafalaya River Shelf (with Louisiana State University).
  • Determination of subsidence rates in the northern Gulf of Mexico (with Stony Brook University and The University of Texas, Austin)
  • Examination of biomarkers in coastal sediments (with Texas A+M University).

Research Group

  • Alex Ameen, Graduate Research Assistant
    • B.S., 2010, Environmental Sciences
      University of Virginia, Charlottesville, VA

  • Ciara Chambers, Graduate Research Assistant
    • B.S., 2012, Environmental Science
      Rensselaer Polytechnic Institute, Troy, NY

  • Cyndhia Ramatchandirane, Graduate Student
    • B.A., 2011, Geosciences
      Wellesley College, Wellesley, MA

    • M.Sc., 2013, (Candidate) Earth and Environmental Sciences
      Tulane University, New Orleans, LA

  • Alex Breaux, Graduate Student
    • B.S., 2012, Geology
      Tulane University, New Orleans, LA

  • Annelise Muscietta, Graduate Student
    • B.S., 2012, Geology
      State University of New York, Oneonta, NY


  • Rosenheim B.E., Roe K.E., Roberts B.J., Kolker A.S, Allison M.A., Johannesson K.H. 2013. River discharge influences on particulate organic carbon age structure in the Mississippi/Atchafalaya River System. Global Biogeochemical Cycles 27:1-13. doi: 10.1029/2012GB004339.[pdf]
  • Kolker, A.S., Cable, J.E., Johannesson, K.H., Allison, M.A., Inniss, L.V. 2013. Pathways and processes associated with the transport of groundwaters in deltaic systems. Journal of Hydrology 498, 319-334.[pdf]
  • Esposito, C.R., Georgiou, I., Kolker, A.S. 2013. Efficient delivery of sediment through an active crevasse splay. Geophysical Research Letters 40: 1540-1545. doi: 1510.1002/grl.50333.
  • Kolker, A.S., Miner, M.D., Weather, H.D. 2012. Depositional dynamics in a river diversion receiving basin: The case of the West Bay Mississippi River Diversion. Estuarine, Coastal and Shelf Science. 106, 1-12
  • Land, L.E., Kolker, A.S., Gambrell, R.P., 2012. Biotic and abiotic controls on sediment aggregation and consolidation: Implications for geochemical fluxes and coastal restoration. Marine Environmental Research 79, 100-110
  • Bianchi, T.S., Wysocki, L.A., Schneider, K.m., Filley, T.R., Corbett, D.R. and Kolker, A.S.. (2011) Sources of Terrestrial Organic Carbon in the Mississippi Plume Region: Evidence for the Importance of Coastal Marsh Inputs. Organic Geochemistry.
  • Kolker, A.S., Allison, M.A., Hammed, S. (2011). An evaluation of subsidence rates and sea-level variability in the northern Gulf of Mexico. Geophysical Research Letters. 38:L21404. doi:10.1029/2011GL049458,2011.
  • Bianchi, T.S. Cook, R.L., Perdue, E.M. Kolic, P.E., Green, N.. Zhang, Y.. Smith, R.W.. Kolker, A.S., Ameen, A.D., King, G, M., Ojwang, L., Schneider, C., Normand, A., (2011). Impacts of Diverted Freshwater on Dissolved Organic Matter and Microbial Communities in Barataria Bay, Louisiana, U.S.A. Marine Environmental Research, 72: 248-257.
  • Kolker, A.S., Kirwan, M., Goodbred, S.L. and Cochran, J.K., 2010. Global climate changes recorded in coastal wetland sediments: Empirical Observations lined to Theoretical Predictions. Geophysical Research Letters, 37(L14706, doi:10.1029/2010GL043874).
  • Kolker, A.S., Meffert, D.J. Carbonell, A. and Nelson, S.A. (2010). The lessons from a major climate event: Hurricane Katrina and New Orleans. Accepted to the International Panel on Climate Change in Cities First Assessment Report. Cambridge University Press.
  • Rahoon, D.R., Reed, D.J. Kolker, A.S., Brinson, M.M., Stevenson, J.C., Riggs, S., Christian, R., Reyes, E., Voss, C., Kunz, D., (2009). Coastal Wetland Sustainability. Chapter 4 in US Climate Change Science Program: Synthesis and Assessment Product 4.1 "Coastal Sensitivity to Sea Level Rise: A Focus on the Mid-Atlantic Region. US Environmental Protection Agency. p 189-237.
  • Kolker, A.S., Goodbred, S.L., Hameed, S. and Cochran, J.K., 2009. High resolution records of coastal systems responses to short-term sea-level variability. Estuarine, Coastal and Shelf Science, 84(4): 493-508.
  • Kolker, A.S. and Hameed, S., 2007. Meteorologically driven trends in sea level rise. Geophysical Research Letters(L23616): DOI:2007GL021814.
  • Kolker, A.S. The Impacts of Climate Variability and Anthropogenic Activities on Salt Marsh Accretion and Loss on Long Island. Marine Sciences Research Center, Stony Brook University, Stony Brook, NY 241 p.