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USGS Leads a National Study on Hypoxia in the Gulf of Mexico

Map of the Mississippi River Basin and 9 large subbasins
This map shows the locations of the 9 large subbasins studied in the Committee on Environment and Natural Resources (CENR) hypoxia assessment.

The U.S. Geological Survey (USGS) was the lead agency for a recently released national study on the Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin. This report is part of a multi-agency assessment of the causes and consequences of hypoxia in the Gulf of Mexico. Nutrients from the Mississippi River Basin are believed to be responsible, at least in part, for the large hypoxic zone that develops on the Louisiana-Texas shelf in the Gulf of Mexico each summer.


CENR, 2000, Integrated assessment of hypoxia in the northern Gulf of Mexico: National Science and Technology Council Committee on Environment and Natural Resources, Washington, D.C., 58 p.

Goolsby, D.A., 2000, Mississippi basin nitrogen flux believed to cause Gulf hypoxia: Eos, v. 81, no. 29, 07/18/2000, p. 321, 326-327.

Goolsby, D.A., Battaglin, W.A., Lawrence, G.B., Artz, R.S., Aulenbach, B.T., Hooper, R.P., Keeney, D.R., and Stensland, G.J., 1999, Flux and sources of nutrients in the Mississippi-Atchafalaya River Basin--Topic 3, Report for the integrated assessment on hypoxia in the Gulf of Mexico: National Oceanic and Atmospheric Administration, NOAA Coastal Ocean Program Decision Analysis Series No. 17, 129 p.

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