Navigation Links
Smaller than expected, but severe, dead zone in Gulf of Mexico
Date:7/27/2009

NOAA-supported scientists, led by Nancy Rabalais, Ph.D., from the Louisiana Universities Marine Consortium (LUMCON), found the size of this year's Gulf of Mexico dead zone to be smaller than forecasted, measuring 3,000 square miles. However the dead zone, which is usually limited to water just above the sea floor, was severe where it did occur, extending closer to the water surface then in most years.

Earlier this summer, NOAA-sponsored forecast models developed by R. Eugene Turner, Ph. D. of Louisiana State University and Donald Scavia, Ph.D. of the University of Michigan, predicted a larger than normal dead zone area of between 7,450 8,456 square miles. The forecast was driven primarily by the high nitrate loads and high freshwater flows from the Mississippi and Atchafalaya rivers in spring 2009 as measured by the U.S. Geological Survey.

Rabalais believes the smaller than expected dead zone is due to unusual weather patterns that re-oxygenated the waters, among other factors.

"The winds and waves were high in the area to the west of the Atchafalaya River delta and likely mixed oxygen into these shallower waters prior to the cruise, thus reducing the area of the zone in that region," said Rabalais. "The variability we see within each summer highlights the continuing need for multiple surveys to measure the size of the dead zone in a more systematic fashion."

"The results of the 2009 cruise at first glance are hopeful, but the smaller than expected area of hypoxia appears to be related to short-term weather patterns before measurements were taken, not a reduction in the underlying cause, excessive nutrient runoff." said Robert Magnien, PhD., director of NOAA's Center for Sponsored Coastal Ocean Research. "The smaller area measured by this one cruise, therefore, does not represent a trend and in no way diminishes the need for a harder look at efforts to reduce nutrient runoff."

The average size of the dead zone ov
'/>"/>

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

Page: 1 2

Related biology news :

1. Social parasites of the smaller kind
2. 2007 ozone hole smaller than usual
3. Iowa State researchers look for smaller, cheaper, 1-dose vaccines
4. Penn engineers create carbon nanopipettes that are smaller than cells and measure electric current
5. Nanoparticles in the home: More and smaller than previously detected
6. New research shows dinosaurs may have been smaller than we thought
7. Smaller plants punch above their weight in the forest, say Queens biologists
8. Invasive Australian jellyfish sighted in Gulf of Mexico in summer 2007
9. Small-scale fishing in Mexico rivals industrial fisheries in accidental turtle deaths
10. Gulf of Mexico dead zone to be studied by University of Texas at Austin marine scientists
11. UTSA and University in Mexico to collaborate in science research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... This news release is available in German . ... scientists, including researchers from DESY, has caught a central step ... led by Prof. Petra Fromme from Arizona State University used ... Accelerator Laboratory SLAC to record still frames of a molecular ... and oxygen, a process that maintains the oxygen in earth,s ...
(Date:7/10/2014)... While careful management has helped stabilize or even ... parts of Europe, the situation in the Mediterranean ... a new report evaluating nine fish species reported ... on July 10, scientists call for stringent ... fisheries regulations, and advanced management plans in Mediterranean ...
(Date:7/10/2014)... of overfishing in the English Channel has resulted in ... and left fishermen ,scraping the barrel, for increasing amounts ... cod, haddock and many other species at the head ... many removed from the area completely., These are some ... biologists at Plymouth University, in association with international non-profit ...
Breaking Biology News(10 mins):Scientists watch photosynthesis in action 2Scientists watch photosynthesis in action 3Mediterranean fish stocks show steady decline 2Overfishing in the English Channel leaves fisherman scraping the bottom of the barrel 2Overfishing in the English Channel leaves fisherman scraping the bottom of the barrel 3
... paper being presented in two American Physiological Society ... team demonstrated "for the first time that mitochondria ... mitochondria may mechanically regulate nuclear function." , The ... years, reported that it recently "found a very ...
... There's no doubt that laughter feels good, but is ... do about it? , In a paper being presented ... 2006, Lee S. Berk of Loma Linda University, reports ... but just the anticipation of the "mirthful laughter" involved ...
... different plant species are not only more productive, they ... climate extremes, pests and disease over long periods of ... issue of Nature, are the culmination of 12 years ... Ecology at the University of Minnesota, to explore the ...
Cached Biology News:First direct mechanical communication of mitochondria, cardiomyocyte nucleus shown 2First direct mechanical communication of mitochondria, cardiomyocyte nucleus shown 3Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent 2Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent 3Biodiversity key to sustainable biofuel according to University of Minn. researcher's findings 2
(Date:7/10/2014)... spiders can sit upside down forever. Nanophysics makes sure of ... an article just published in Physical Review E . ... and spiders that seem to be able to sit still ... for many years. We will soon be able to buy ... gecko,s foot. But the fact is, sooner or later the ...
(Date:7/10/2014)... researchers at the University of Illinois at Urbana-Champaign ... the interplay of spin and heat at the ... spintronic devices for data storage and information processing. ... as spin-angular momentum. In a typical charge current, ... spin current," explained David Cahill, a professor of ...
(Date:1/15/2014)... to assembling a club sandwich at the nanoscale, ... have succeeded in crafting a uniform, multi-walled carbon-nanotube-based ... commonly used in upholstered furniture and other soft ... foam was reduced 35 percent compared with untreated ...
(Date:1/15/2014)... 2014  Bill Jacobs Automotive, a group of car dealerships headquartered ... the Heartland Blood Center and offering free oil change coupons ... place Saturday, Jan. 18 at the Bill Jacobs Cadillac and ... (Photo: http://photos.prnewswire.com/prnh/20140115/MN46637 )  The Bill Jacobs ...
Breaking Biology Technology:Even geckos can lose their grip 2University of Illinois study advances limits for ultrafast nano-devices 2Layered security: Carbon nanotubes promise improved flame-resistant coating 2Join the Bill Jacobs Auto blood drive and receive a free oil change 2
... Ariz., April 23 ImaRx Therapeutics,Inc. (Nasdaq: ... into an agreement,with Abbott Laboratories pursuant to which ... non-recourse promissory note with Abbott issued in,connection with ... title to,the urokinase assets, including the remaining inventory ...
... (NYSE: SGP ) today announced two agreements ... in Europe. These agreements are,in connection with conditions ... its October 2007 clearance of Schering-Plough,s acquisition of ... In two separate agreements, Pfizer and Virbac, ...
... today,announced that on April 22, 2008 its management ... Emerging Business Awards, known as the "Bennies.",BioNanomatrix won ... group of growing entrepreneurial firms in the Philadelphia ... the,award on behalf of the company., The ...
Cached Biology Technology:ImaRx Therapeutics Satisfies Abbott Note Obligation Associated With the Acquisition of Urokinase 2ImaRx Therapeutics Satisfies Abbott Note Obligation Associated With the Acquisition of Urokinase 3Schering-Plough Announces Planned Divestiture of Select Animal Health Products in Europe 2BioNanomatrix Named 'Best Management Team' at the 2008 Ben Franklin Emerging Business Awards 2
MAb to HLA, Class II-DR+DP Dry Ice: No Preservative: NaN3 Availability When Not in Inventory: 14-21 Business Days...
Cell Culture Flask, 25 cm, tissue-culture treated polystyrene...
... Virgin, optically clear polystyrene with frosted ... coordinates for cell counting. 100% integrity ... a new product number, created to ... showing no availability yet, please order ...
... CellBIND surface is produced by a ... more hydrophilic surface giving more consistent, ... and yields. CellBIND enhances cell attachment ... reduced serum or serum-free medium. • ...
Biology Products: