Navigation Links
NOAA and Louisiana scientists predict largest Gulf of Mexico 'dead zone' on record
Date:7/15/2008

NOAA-supported scientists from the Louisiana Universities Marine Consortium and Louisiana State University are forecasting that the "dead zone" off the coast of Louisiana and Texas in the Gulf of Mexico this summer could be the largest on record.

The researchers are predicting the area could measure a record 8,800 square miles, or roughly the size of New Jersey. In 2007, the dead zone was 7,903 square miles. The largest dead zone on record was in 2002, when it measured 8,481 square miles. The official measurement of this year's dead zone is slated to be released in late July. Researchers began taking regular measurements of the dead zone in 1985.

"The prediction of a large dead zone this summer is due to a combination of large influx of nitrogen and exceptionally high flows from the Mississippi and Atchafalaya rivers," said LSU scientist R. Eugene Turner.

The dead zone is an area in the Gulf of Mexico where seasonal oxygen levels drop too low to support most life in bottom and near-bottom waters. This low oxygen, or hypoxic, area is primarily caused by high nutrient levels, which stimulates an overgrowth of algae that sinks and decomposes. The decomposition process in turn depletes dissolved oxygen in the water. The dead zone is of particular concern because it threatens valuable commercial and recreational Gulf fisheries.

Research indicates that the nearly tripling of nitrogen levels into the Gulf over the past 50 years from human activities has led to a dramatic increase in the size of the dead zone. Various models are useful in evaluating the influence of nitrogen loads and other factors on the size of the dead zone. The LSU model has a strong track record of accurately predicting the dead zone's size.

"The strong link between nutrients and the dead zone indicates that excess nutrients from the Mississippi River watershed during the spring are the primary human-influenced factor behind the expansion of the dead zone," said Rob Magnien, director of the NOAA Center for Sponsored Coastal Ocean Research. "This analysis will greatly inform the development of federal, state and local efforts to reduce the dead zone's size."

The forecast is based on a mathematical model developed by LSU through NOAA's long-term research investment by CSCOR's Gulf of Mexico Ecosystems and Hypoxia Assessment. The model incorporates U.S. Geological Survey data on the amount of nitrogen reaching the Gulf of Mexico in May. NOAA has been funding investigations into the dead zone since 1990.


'/>"/>

Contact: Ben Sherman
ben.sherman@noaa.gov
301-713-3066
NOAA Headquarters
Source:Eurekalert

Related medicine news :

1. Louisiana Department of Health and Hospitals Announces Intent to Award Cost Containment Services Contract to HMS
2. Louisiana Improves Law for Treating Mentally Ill
3. CRH Medical Corporation opens center in New Orleans, Louisiana
4. Louisiana May Mandate Fluoridation Despite Evidence of Harm
5. Asbestos Verdict Upheld by Louisiana Court of Appeal, Announces Baron & Budd
6. Hospitals in Louisiana and Mississippi to Receive More Katrina Recovery Grants
7. Louisiana Advisor to Speak Nationwide
8. Bright Options for Medicare Beneficiaries in Louisiana
9. Louisiana Tech professor is Small Times Innovator of the Year
10. Carnegie Corporation funds ASCB course on parasites for African scientists
11. NIH grant to strengthen IU and Purdue program to educate physician-scientists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/25/2016)... (PRWEB) , ... May 25, 2016 , ... ... Institute (WCRI) compare outcomes of injured workers across 15 states. The outcomes ... work, earnings recovery, access to medical care, and satisfaction with medical care. , ...
(Date:5/25/2016)... Culver City, California (PRWEB) , ... May 25, ... ... a new interest group ADDMI - “Advancing Drug Development through Molecular Imaging.” The ... address some of the current drug discovery and development pipeline issues. Through ADDMI-IG ...
(Date:5/25/2016)... ... ... Afrimesure specializes in providing clients with ideal measurement and ... facilities. Their knowledgeable staff also takes care of the installation, IQ/OQ/PQ qualification protocols, ... variety of MadgeTech systems available for sterilization and temperature monitoring, including the software ...
(Date:5/25/2016)... ... 25, 2016 , ... The University of San Francisco (USF) has named Margaret ... a team of more than 100 full-time faculty and staff, and serve as a ... late August. , Baker comes to USF from the University of Washington in Seattle, ...
(Date:5/25/2016)... ... May 25, 2016 , ... "FCPX LUT Intense allows users to cycle through ... Austin - CEO of Pixel Film Studios. , With the FCPX LUT Intense ... color grades to their footage. A LUT is a Lookup Table that contains a ...
Breaking Medicine News(10 mins):
(Date:5/25/2016)... MedDay, a biotechnology company focused on ... presentation entitled "High doses of biotin in progressive multiple sclerosis: ... by Professor Ayman Tourbah , Principal Investigator of the ... Academy of Neurology (EAN) in Copenhagen, Denmark ... take place on Sunday, 29 May 2016 from 14:45 to ...
(Date:5/24/2016)... Cirujanos holandeses han puesto en marcha una ... compartir sus mejores prácticas por el mundo y tratar ... Europa, África, Asia y Estados ... combina la transmisión en vivo con mensajería instantánea y ... "Imagine un médico de Medicines sans Frontieres ...
(Date:5/24/2016)... -- ARANZ Medical  Ltd a specialist in ... been named the Coretex Hi-Tech Emerging Company of the Year ... Bruce Davey , CEO of ARANZ Medical says, "This ... to be recognised for the work we are doing to ... 35 countries around the world from Sub-Saharan Africa through to ...
Breaking Medicine Technology: