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Investigating the effect of oil spills
on the environment and public health.
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Tracy A. Villareal

The University of Texas at Austin

Department of Marine Science

Marine Science Institute
750 Channel View Drive
Port Aransas, TX  78373  

tracyv@austin.utexas.edu

Project List:

Ecosystem Impacts of Oil and Gas Inputs to the Gulf-2 (ECOGIG-2)

Year 5-7 Consortia Grants (RFP-IV)Role: Co-Principal Investigator

Ecosystem Impacts of Oil and Gas Inputs to the Gulf (ECOGIG)

Year 2-4 Consortia Grants (RFP-I)Role: Co-Principal Investigator, Task Co-Lead

Publications & Presentations:

Journal Articles - 2

2016

Cardona, Y., Bracco, A., Villareal, T. A., Subramaniam, A., Weber, S. C., & Montoya, J. P. (2016). Highly variable nutrient concentrations in the Northern Gulf of Mexico. Deep Sea Research Part II: Topical Studies in Oceanography, 129, 20–30.

2014

Crespo-Medina, M., Meile, C. D., Hunter, K. S., Diercks, A. - R., Asper, V. L., Orphan, V. J., et al. (2014). The rise and fall of methanotrophy following a deepwater oil-well blowout. Nature Geosci, 7(6), 423–427.

Conference Presentations - 17

2015

Bracco, A., Cardona, Y., Villareal, T., Subramaniam, A., Weber, S., & Montoya, J. (2015). Nutrient Concentrations Along The River Plume Salinity Gradient In The Northern Gulf of Mexico Over The Past 30 Years. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15: Poster.
Hermosillo, X., & Villareal, T. A. (2015). High resolution vertical profiles of Trichodesmium using an optical profiler: Abundance and chlorophyll contribution in the northern Gulf of Mexico. In 2015 SACNAS National Conference. Washington, D.C. : 10/29/15-10/31/15.
Montoya, J., Weber, S. C., Villareal, T. A., Bracco, A., & Joye, S. B. (2015). Impact of the Deepwater Horizon incident on planktonic ecosystems: Carbon is important, but so is Nitrogen. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15.
Montoya, J. P., Weber, S. C., Fernandez, A., Lee-Patterson, D. A. O., Villareal, T. A., Bracco, A., et al. (2015). Spills, seeps, and cycles: Methane links the carbon and nitrogen cycles through diazotrophy. In 2015 ASLO Aquatic Sciences Meeting. Granada, Spain : 02/22/15-02/27/15.
Oh, G., & Villareal, T. A. (2015). Variations in diatom sinking rates with exposure to crude oil and dispersant. In Coastal and Estuarine Research Federation 2015. Portland, OR : 11/08/15-11/12/15: Poster.

2014

Hermosillo, X., & Villareal, T. (2014). High Resolution Vertical Profiles Oftrichodesmium Using An Optical Profiler: Abundance And Chlorophyll Contribution In The Northern Gulf Of Mexico. In ASLO/AGU/TOS Ocean Sciences Meeting, Honolulu HI. Honolulu, HI : 02/23/14-02/28/14: Poster.
Villareal, T. A., Collier, K., O'Dell, M., & Hermosillo, X. (2014). Diazotrophs in the northern Gulf of Mexico: distribution and hydrocarbon/dispersant effects on nitrogen-fixation in Trichodesmium and diatom symbioses. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster.

2013

Montoya, J. P., Weber, S. C., Subramaniam, A., Juhl, A., Villareal, T. A., Bracco, A., et al. (2013). Rates and fates of nitrogen and carbon in the water column: impact of seeps and spills on plankton biogeochemistry. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013.
O'Dell, M. J., & Villareal, T. A. (2013). Physiological effects of crude oil on diatom-diazotroph associations. In Ocean Sciences Meeting 2013. New Orleans, LA : 02/17/13-02/22/2013: Poster.
Sargent, E. C., Snow, J. T., Pabortsava, K., Villareal, T. A., Moore, C. M., Bibby, T. S., et al. (2013). Reconsidering the fate of diazotroph-derived new nitrogen: the presence of Trichodesmium in sinking materia. In Ocean Sciences Meeting 2013. New Orleans, LA : 02/17/13-02/22/2013: Poster.
Weber, S. C., Subramaniam, A., Crespo-Medina, M., Joye, S. B., Bracco, A., Villareal, T. A., et al. (2013). Spills, seeps, and pelagic foodwebs in the Northern Gulf of Mexico: What do stable isotopes tell us about oil, gas, and discolored zooplankton? In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013.

2012

Crespo-Medina, M., Vossmeyer, A., Hunter, K., Battles, J. J., Montoya, J. P., Asper, V., et al. (2012). Water column methane dynamics in response to the Deepwater Horizon hydrocarbon spill. In Ocean Sciences Meeting 2012. Salt Lake City, UT: 02/19/12-02/24/12.
Knapke, E. M., Collier, K., Hoppe, K., Montoya, J. P., & Villareal, T. A. (2012). Influence of Mississippi River plume on distributions of diazotrophs in the Gulf of Mexico. In Ocean Sciences Meeting 2012. Salt Lake City, UT: 02/19/12-02/24/12.
Montoya, J. P., Subramaniam, A., Crespo-Medina, M., Bracco, A., Villareal, T. A., & Joye, S. B. (2012). The Deepwater Horizon oil spill and pelagic foodwebs in the Northern Gulf of Mexico: What do elements and isotopes tell us about oil, plumes, and zooplankton? In Ocean Sciences Meeting 2012. Salt Lake City, UT: 02/19/12-02/24/12.
Pyle, A., Brown, C., & Villareal, T. (2012). Growth and nitrogren-fixation rates in laboratory cultures of the diazotrophic. In Ocean Sciences Meeting 2012. Salt Lake City, UT: 02/19/12-02/24/12.
Subramaniam, A., Villareal, T. A., Bracco, A., & Montoya, J. P. (2012). Characterizing the 2011 Great Flood Plume of the Mississippi River. In Ocean Sciences Meeting 2012. Salt Lake City, UT: 02/19/12-02/24/12: Poster.

2011

Montoya, J. P., Subramaniam, A., Asper, V., Diercks, A., Passow, U., Crepo-Medina, M., et al. (2011). Deepwater Horizon oil and pelagic foodwebs in the Northern Gulf of Mexico. In Coastal and Estuarine Research Federation Conference. Daytona Beach, FL, November 6-10, 2011.