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The photos included below are all free for educational use. Click on the image to view and download a larger version. Sizes of the larger image are provided below each thumbnail.

Figures and Graphs

Change in Hypoxic Zone (1985-2009)

A bar graph depicting the size of the hypoxic zone in square kilometers from 1985 to 2009.

Source: adapted from data provided by N.Rabalais

2009 Areal Extent

A graphical version of an areal map that shows the extent of hypoxia in the Gulf of Mexico in 2009. The hypoxic zone is depicted with a spectrum of colors depending on the severity of hypoxia in a particular area.


Source: N. Rabalais and B.Babin

Change in Hypoxic Zone (1985-2008)

A bar graph depicting the size of the hypoxic zone in square kilometers from 1985 to 2008. The graph also depicts the 5-year hypoxic zone average size from 2004 to 2008 of 17,076 square kilometers, and the Action Plan Goal hypoxic zone size of 5,000 square kilometers.

Source: adapted from data provided by N.Rabalais

2008 Areal Extent

A graphical version of an areal map that shows the extent of hypoxia in the Gulf of Mexico in 2008. The hypoxic zone is depicted with a spectrum of colors depending on the severity of hypoxia in a particular area.

Source: N. Rabalais and B.Babin

Old River Control Complex

Image of a close-up map of the Old River Control Complex, within the distributary channels of the Atchafalaya and Mississippi Rivers.

Source: USACE

Deltaic Distributary Channels of MS River

NASA satellite image of distributary channels of the Atchafalaya and Mississippi Rivers.

Source: NASA

2007 Areal Extent

Graphic of an areal map that shows the extent of hypoxia in the Gulf of Mexico in 2007. The hypoxic zone is depicted with a spectrum of colors depending on the severity of hypoxia in a particular area.

Source: N. Rabalais and A. Sapp

Change in Hypoxic Zone (1985-2007)

A bar graph depicting the size of the hypoxic zone in square kilometers from 1985 to 2007. The graph also depicts the 5-year hypoxic zone average size from 2003 to 2007 of 14,644 square kilometers, and the Action Plan Goal hypoxic zone size of 5,000 square kilometers.

Source: N. Rabalais and A. Sapp

Nutrient Loads in MARB

A line graph depicting the varying total loads of nitrogen and phosphorus in metric tons from 1985 to 2005 in the Mississippi/Atchafalaya River Basin.


 

Nitrogen Loads to Gulf by Sub-basin

A bar graph depicting the percent contribution of the total nitrogen load from each major Mississippi sub-basin to the Gulf of Mexico, averaged over the years 2001 to 2005.


 

Phosphorus Loads to Gulf by Sub-basin

A bar graph depicting the percent contribution of the total phosphorus load from each major Mississippi sub-basin to the Gulf of Mexico, averaged over the years 2001 to 2005.


 

MARB Nitrogen Loads by Sub-basin

A bar graph which depicts both the long term average nitrogen load from 1981 to 2005 and the average nitrogen load from 2001 to 2005 in metric tons made by each major Mississippi sub-basin.


 

MARB Phosphorus Loads by Sub-basin

A bar graph which depicts both the long term average phosphorus load from 1981 to 2005 and the average phosphorus load from 2001 to 2005 in metric tons made by each major Mississippi sub-basin.


 

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Photos

Photo showing a clear interface where the grayish-brown colored sediment-laden waters from the Mississippi River meet the waters of the Gulf of Mexico, which are dark blue and have much less sediment.

Source: N. Rabalais

Photo of the Atchafalaya River Delta showing the Atchafalaya River flowing into the Gulf of Mexico.

Source: USACE

Photo of steamboats on the Mississippi River with an urban setting in the background.

Source: USGS

Photo of a small fishing community on a river, with fishing boats at their slips, and processing buildings along the shore.

Source: Joe Cancienne, Tt

Photo of a gray partridge, partially buried in the snow to stay warm.

Source: USDA NRCS

Photo of a USGS gauging station on the Mississippi River.

Source: USGS

Photo of a bottomland hardwood forest in early morning.

Source: USDA NRCS

Photo of Bear Creek in Story County, Iowa in the winter, showing conservation buffers.

Source: USDA NRCS

Photo of a farm pond with the sky, barns, and silos reflected in the water.

Source: USDA NRCS

Photo of two farmers looking at a line-transect on the ground on their harvested field.

Source: USDA NRCS

Photo of an aerial view of a farm using contour farming, conservation tillage, and a vegetation buffer between the farmland and a stream.

Source: USDA NRCS

Photo of surface water running off an unprotected farm field.

Source: USDA NRCS

Photo of two farmers kneeling to inspect young corn seedlings.

Source: USDA NRCS

Photo of shrimpers in the Gulf of Mexico at sunset.

Source: NOAA

Photo of the Mississippi River delta showing the channelization of the river.

Source: NOAA

Photo of a man and two students planting a tree near a stream.

Source: USDA NRCS

Photo of a dredging operation.

Source: USACE

Photo of farmers harvesting corn.

Source: USDA NRCS

Photo of monitoring equipment on a boat in the Gulf of Mexico.

Source: K. Goodrich

NASA satellite image showing sediment loads from the Mississippi and Atchafalaya Rivers emptying into the Gulf of Mexico.

Source: NASA

Photo of ridge-till and strips of corn and soybeans in a northwest Iowa field.

Source: NRCS

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