NOTICE: This Web site is no longer being updated and will be archived. Current U.S. Geological Survey information on hypoxia in the Gulf of Mexico and nutrient delivery in the Mississippi River Basin has moved to the Nutrient Loading for the Mississippi River and Subbasins Web Site.
USGS Hypoxia in the Gulf of Mexico Studies
The USGS provides scientific information to support management actions intended to reduce excess nutrients in the Mississippi River Basin and Hypoxia in the Gulf of Mexico.