> Oceanography > Issues > Archive > Volume 24, Number 2

2011, Oceanography 24(2):200–211, http://dx.doi.org/10.5670/oceanog.2011.44

Twelfth Annual Roger Revelle Commemorative Lecture |
Troubled Waters of the Gulf of Mexico

Author | Introduction | Full Article | Citation | References







Author

Nancy N. Rabalais | Louisiana Universities Marine Consortium, Chauvin, LA, USA

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Introduction

The gusher has ended, but before it did, an estimated 206 million gallons of crude oil and methane gas escaped from the Macondo well in lease block Mississippi Canyon 252. We know it better as the BP Deepwater Horizon oil spill that resulted from a series of mechanical and safety failures leading to an explosion, the deaths of 11 workers, and the largest accidental oil spill in history. The well was in the northern Gulf of Mexico in 1500 m of water, not the deepest in this petroleum production frontier, but in an otherwise blue-water, pristine ocean home to deepwater corals and pods of sperm whales, and one of two spawning areas for Atlantic bluefin tuna. Satellite images of black oil at the surface marred this picture as the oil continued to spew from the ocean bottom and spread into the northern Gulf of Mexico. Innumerable lives were affected—from microbes to humans—and the world was transfixed by the continuous images of oil and gas blowing from the Gulf bottom while technology raced to catch up with Mother Nature.

In addition to being the center for oil and gas production in the United States, the northern Gulf of Mexico provides essential resources and services to the region and the nation: transportation, marine fisheries, tourism, recreation, and shipping and navigation. But the focused resource use by so many sectors has not come without cost. Although the region has been altered many times by natural forces, in modern times, human activities have reshaped the delta and degraded water quality, causing major losses of wetlands and creating the largest hypoxic zone in the United States. When the spill began in spring 2010, water-quality problems from excess nutrients already existed, triggering a world-class "dead zone" that expanded in size and severity throughout the summer. The immediate and dramatic insult inflicted by the spill's intensity garnered global attention, highlighting not only the spill but the many existing stressors that already threatened this valuable ecosystem.

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Full Article

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Citation

Rabalais, N.N. 2011. Twelfth Annual Roger Revelle Commemorative Lecture: Troubled waters of the Gulf of Mexico. Oceanography 24(2):200–211, http://dx.doi.org/10.5670/oceanog.2011.44.

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References

Alexander, R.B., R.A. Smith, G.E. Schwarz, E.W. Boyer, J.V. Nolan, and J.W. Brakebill. 2008. Differences in phosphorus and nitrogen delivery to the Gulf of Mexico from the Mississippi River. Environmental Science and Technology 42:822–830. [CrossRef]

Barras, J.A. 2006. Land area change in coastal Louisiana after the 2005 hurricanes: A series of three maps. US Geological Survey Open-File Report 2006-1274.

Baumann, R.H., and R.E. Turner. 1990. Direct impacts of outer continental shelf activities on wetland loss in the central Gulf of Mexico. Environmental Geology and Water Resources 15:189–198. [CrossRef]

Blum, M.D., and H.H. Roberts. 2009. Drowning of the Mississippi Delta due to insufficient sediment supply and global sea-level rise. Nature Geoscience 2:488–491. [CrossRef]

Boesch, D.F., M.N. Josselyn, A.J. Mehta, J.T. Morris, W.K. Nuttle, C.A. Simenstad, and D.J.P. Swift. 1994. Scientific assessment of coastal wetland loss, restoration and management in Louisiana. Journal of Coastal Research Special Issue 20:1–103.

Boyer, M.E. 1997. The effect of long-term marsh management on land-loss rates in coastal Louisiana. Environmental Management 21:97–104. [CrossRef]

Britsch, L.D., and J.B. Dunbar. 1993. Land-loss rates: Louisiana Coastal Plain. Journal of Coastal Research 9:324–338.

Camilli, R., C.M. Reddy, D.R. Yoerger, B.A.S. Van Mooy, M.V. Jakuba, J.C. Kinsey, C.P. McIntyre, S.P. Sylva, and J.V. Maloney. 2010. Tracking hydrocarbon plume transport and biodegradation at Deepwater Horizon. Science 8:201–204. [CrossRef]

Committee on Environment and Natural Resources. 2000. Integrated Assessment of Hypoxia in the Northern Gulf of Mexico. National Science and Technology Council, Washington, DC.

Dahl, T.E. 1990. Wetlands Losses in the United States: 1780s to 1980s. US Department of the Interior, Fish and Wildlife Service, Washington, DC.

Das, A., D. Justić, and E. Swenson. 2010. Modeling estuarine-shelf exchanges in a deltaic estuary: Implications for coastal carbon budgets and hypoxia. Ecological Modeling 221:978–985. [CrossRef]

Díaz, R.J., and R. Rosenberg. 1995. Marine benthic hypoxia: A review of its ecological effects and the behavioral responses of benthic macrofauna. Oceanography and Marine Biology Annual Review 33:245–303.

Díaz, R.J., and R. Rosenberg. 2008. Spreading dead zones and consequences for marine ecosystems. Science 321:926–929. [CrossRef]

Eadie, B.J., B.A. McKee, M.B. Lansing, J.A. Robbins, S. Metz, and J.H. Trefry. 1994. Records of nutrient-enhanced coastal productivity in sediments from the Louisiana continental shelf. Estuaries 17:754–765. [CrossRef]

Ekau, W., H. Auel, H.-O. Pörtner, and D. Gilbert. 2010. Impacts of hypoxia on the structure and processes in pelagic communities (zooplankton, macro-invertebrates and fish). Biogeosciences 7:1,669–1,699. [CrossRef]

Goolsby, D.A., W.A. Battaglin. G.B. Lawrence, R.S. Artz, B.T. Aulenbach, R.P. Hooper, D.R. Keeney, and G.J. Stensland. 1999. Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin, Topic 3 Report for the Integrated Assessment of Hypoxia in the Gulf of Mexico. National Oceanic and Atmospheric Administration Coastal Ocean Program, Decision Analysis Series No. 17. National Oceanic and Atmospheric Administration Coastal Ocean Program, Silver Spring, MD.

Greeley, W.B. 1925. The relation of geography to timber supply. Economic Geography 1:1–14. [CrossRef]

Joint Analysis Group, Deepwater Horizon Oil Spill. 2010. Data available at http://ecowatch.ncddc.noaa.gov/JAG/data.html and http://ecowatch.ncddc.noaa.gov/thredds/catalog_dwh.html.

Kemp, W.M., J.M. Testa, D.J. Conley, D. Gilbert, and J.D. Hagy. 2009. Temporal responses of coastal hypoxia to nutrient loading and physical controls. Biogeosciences 6:2,985–3,008. [CrossRef]

Levin, L.A., W. Ekau, A. Gooday, F. Jorrisen, J. Middelburg, C. Neira. N.N. Rabalais, S.W.A. Naqvi, and J. Zhang. 2009. Effects of natural and human-induced hypoxia on coastal benthos. Biogeosciences 6:2,063–2,098. [CrossRef]

Mabus, R. 2010. America's Gulf Coast: A Long Term Recovery Plan after the Deepwater Horizon Oil Spill. Report to President Barack Obama. Available online at: http://www.restorethegulf.gov/release/2010/09/28/america%E2%80%99s-gulf-coast-long-term-recovery-plan-after-deepwater-horizon-oil-spill (accessed May 2, 2011).

Meade, R.H., ed. 1995. Contaminants in the Mississippi River, 1987–1992. US Geological Survey Circular 1133, US Department of the Interior. US Geological Survey, Denver CO.

Meade, R.H. 1996. River-sediment input to major deltas. Pp. 63–85 in Sea-level Rise and Coastal Subsidence: Causes, Consequences and Strategies. J.D. Milliman and B.U. Hag, eds, Kluwer Academic Publishers.

Meade, R.H., and R. Parker. 1985. Sediment in rivers of the United States. Pp. 49–60 in National Water Summary 1984. US Geological Survey Water Supply Paper No. 2275.

Milliman, J.D., and R.H. Meade. 1983. World-wide delivery of river sediment to the ocean. Journal of Geology 91:1–21. [CrossRef]

Morton, T.A., J.C. Bernier, J.A. Barras, and N.F. Ferina. 2005. Rapid Subsidence and Historical Wetland Loss in the Mississippi Delta Plain: Likely Causes and Future Implications. US Geological Survey Open-File Report 2005–1215. U.S. Government Printing Office, Washington, DC.

Nomack, M. 2010. Deepwater Gulf of Mexico oil reserves and production. In Encyclopedia of Earth. C.E. Cleveland, ed., National Council for Science and the Technology, Washington, DC. Excerpts available online at: http://www.eoearth.org/articles/view/158852/ (accessed May 2, 2011).

National Research Council. 2003. Oil in the Sea: Inputs, Fates, and Effects. National Academies Press, Washington, DC.

National Research Council. 2007. The Mississippi River and the Clean Water Act: Progress, Challenges, and Opportunities. National Academies Press, Washington, DC.

National Research Council. 2008. First Report from the NRC Committee on the Review of the Louisiana Coastal Protection and Restoration (LACPR) Program. National Academies Press, Washington, DC.

Oil Spill Commission. 2011. Deep Water: The Gulf Oil Disaster and the Future of Offshore Drilling. Recommendations of the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling, Washington, D.C. Available online at: http://www.oilspillcommission.gov (access May 2, 2011).

Penland, S., R. Boyd, and J.R. Suter. 1988. The transgressive depositional systems of the Mississippi deltaic plain: A model for barrier shoreline and shelf sand development. Journal of Sedimentary Petrology 58(6):932–949.

Presidential Executive Order. 2010. Establishing the Gulf Coast Ecosystem Restoration Task Force. Executive Order No. 13554, 75 Fed. Reg. 62313–62317, October 8, 2010.

Priest, T. 2007. Extraction not creation: The history of offshore petroleum in the Gulf of Mexico. Pp. 227–267 in Business History Conference. Oxford University Press.

Prince, H. 1997. Wetlands of the American Midwest. University of Chicago Press, Chicago, IL.

Rabalais, N.N., and R.E. Turner, eds. 2001. Coastal Hypoxia: Consequences for Living Resources and Ecosystems. Coastal and Estuarine Studies 58, American Geophysical Union, Washington, DC, 454 pp.

Rabalais, N.N., R.E. Turner, and D. Scavia. 2002. Beyond science into policy: Gulf of Mexico hypoxia and the Mississippi River. BioScience 52:129–142. [CrossRef]

Rabalais, N.N., R.E. Turner, B.K. Sen Gupta, D.F. Boesch, P. Chapman, and M.C. Murrell. 2007. Hypoxia in the northern Gulf of Mexico: Does the science support the plan to reduce, mitigate, and control hypoxia? Estuaries and Coasts 30(5):753–772. [CrossRef]

Rabalais, N.N., R.J. Díaz, L.A. Levin, R.E. Turner, D. Gilbert, and J. Zhang. 2010. Dynamics and distribution of natural and human-caused coastal hypoxia. Biogeosciences 7:585–619. [CrossRef]

Ren, L., N.N. Rabalais, W. Morrison, W. Mendenhall, and R.E. Turner. 2009. Nutrient limitation on phytoplankton growth in upper Barataria Basin, Louisiana: Microcosm bioassays. Estuaries and Coasts 32: 958–974. [CrossRef]

Renaud, M. 1986. Hypoxia in Louisiana coastal waters during 1983: Implications for fisheries. Fishery Bulletin 84:19–26.

Science Advisory Board. 2007. Hypoxia in the Gulf of Mexico: An Update. US Environmental Protection Agency, Science Advisory Board (SAB) Hypoxia Panel Draft Advisory Report. Available online at: http://www.epa.gov/sab/pdf/11-19-07_hap_draft.pdf (accessed May 2, 2011).

Swenson, E.M., and R.E. Turner. 1987. Spoil banks: Effects on a coastal marsh water level regime. Estuarine Coastal and Shelf Science 24:599–609. [CrossRef]

Turner, R.E. 1977. Intertidal vegetation and commercial yields of penaeid shrimp. Transactions of the American Fisheries Society 106:411–416. [CrossRef]

Turner, R.E. 1997. Wetland loss in the northern Gulf of Mexico: Multiple working hypotheses. Estuaries 20:1–13. [CrossRef]

Turner, R.E. 2004. Coastal wetland subsidence arising from local hydrologic manipulations. Estuaries 27:265–273. [CrossRef]

Turner, R.E. 2009. Perspective. Doubt and the values of an ignorance-based world view for restoration: Coastal Louisiana wetlands. Estuaries and Coasts 32:1,054–1,068. [CrossRef]

Turner, R.E., J.W. Day Jr., and J.G. Gosselink. 1989. Weirs and their effects in coastal wetlands (exclusive of fisheries). In Proceedings of the Louisiana Geological Survey/US Fish Wildlife Service. Marsh Management Symposium Biological Report 89(22):151–163.

Turner, R.E., and N.N. Rabalais. 1991. Changes in Mississippi River water quality this century and implications for coastal food webs. BioScience 41:140–147. [CrossRef]

Turner, R.E., and N.N. Rabalais. 1994. Coastal eutrophication near the Mississippi river delta. Nature 368:619–621. [CrossRef]

Turner, R.E., and N.N. Rabalais. 2003. Linking landscape and water quality in the Mississippi River basin for 200 years. BioScience 53:563–572. [CrossRef]

Turner, R.E., N.N. Rabalais, R.B. Alexander, G. McIsaac, and R.W. Howarth. 2007. Characterization of nutrient, organic carbon and sediment loads from the Mississippi River into the northern Gulf of Mexico. Estuaries and Coasts 30(5):773–790. [CrossRef]

Turner, R.E., and B. Streever. 2002. Approaches to Coastal Wetland Restoration: Northern Gulf of Mexico. SPB Academic Publishing bv, The Hague, 147 pp.

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