Navigation Links
Researchers predict record Gulf of Mexico 'dead zone' due to Mississippi River flooding
Date:6/15/2011

ANN ARBOR, Mich.---Extreme flooding of the Mississippi River this spring is expected to result in the largest Gulf of Mexico "dead zone" on record, according to a University of Michigan aquatic ecologist and his colleagues.

The 2011 forecast, released today by the U.S. National Oceanic and Atmospheric Administration (NOAA), calls for a Gulf dead zone of between 8,500 and 9,421 square miles, an area roughly the size of New Hampshire.

The most likely 2011 scenario, according to U-M's Donald Scavia, is a Gulf dead zone of at least 8,500 square miles, surpassing the current record of 8,400 square miles, set in 2002. The average over the past five years is about 6,000 square miles.

"Stream flows were nearly double normal during May, delivering massive amounts of nutrients to the Gulf, and that's what drives the dead zone," said Scavia, Special Counsel to the U-M President for Sustainability, director of the Graham Sustainability Institute, and a professor at the School of Natural Resources and Environment.

Farmland runoff containing fertilizers and livestock waste---some of it from as far away as the Corn Belt---is the main source of the nitrogen and phosphorus that cause the annual Gulf of Mexico oxygen-starved, or hypoxic, zone. Each year in late spring and summer, these nutrients flow down the Mississippi River and into the Gulf, fueling explosive algae blooms there.

When the algae die and sink, bottom-dwelling bacteria decompose the organic matter, consuming oxygen in the process. The result is an oxygen-starved region in bottom and near-bottom waters: the dead zone.

This year, stream-flow rates in the Mississippi and Atchafalaya Rivers were nearly double normal during May 2011, significantly increasing the amount of nitrogen and phosphorus transported by the rivers into the Gulf.

According to U.S. Geological Survey estimates, 164,000 metric tons of nitrogen were transported in May 2011 to the nort
'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Researchers identify why dopamine replacement therapy has a paradoxical effect on cognition
2. Researchers improve method for finding genetic mistakes that fuel cancer
3. Johns Hopkins researchers link cell division and oxygen levels
4. U-M researchers find potential new way to fight sepsis
5. Penn researchers show new evidence of genetic arms race against malaria
6. Penn researchers develop biological circuit components, new microscope technique for measuring them
7. Researchers discover potential cause of chronic painful skin
8. University of Iowa researchers identify caffeine-consuming bacterium
9. USC researchers discover genetic mutation causing excessive hair growth
10. Eating dirt can be good for the belly, researchers find
11. Caltech researchers build largest biochemical circuit out of small synthetic DNA molecules
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... affordable health care to reproductive technologies, the justice ... ability of people to identify key issues, articulate ... and find the most defensible ways forward. But ... these societal conversations?, The Hastings Center and the ... have teamed up to publish a series of ...
(Date:9/17/2014)... student have designed a device based on a shorebird,s ... dew., The device could provide water in drought-stricken areas ... Luo, professor in the Mechanical & Aerospace Engineering Department, ... of Engineering department, published "Bioinspired Plate-Based Fog Collectors" in ... Applied Materials & Interfaces journal. ...
(Date:9/17/2014)... developed, very cleverly, some lessons on how to create ... Joseph Shaw, director of the Optical Technology Center at ... at the nanoscale, we,ll discover them." , Some of ... during a conference called "The Nature of Light: Light ... the University of Arizona College of Optical Sciences. The ...
Breaking Biology News(10 mins):Why bioethics literacy matters 2Why bioethics literacy matters 3Shorebird's beak inspires UT Arlington research on water collection 2Nature's designs inspire research into new light-based technologies 2Nature's designs inspire research into new light-based technologies 3
... Institute have deciphered the structure of the active region ... in the development of nearly all human cancers. The ... new, broadly effective cancer drugs, as well as anti-aging ... decade to find drugs that shut down telomerasewidely considered ...
... the Alliance for a Healthier Generation and the American ... such as soft drinks at schools. However, researchers at ... soft drinks at school may not be enough to ... a study of more than 4,000 children, the researchers ...
... during cardiac procedures. Doctors performing heart surgery also face ... is helping to raise awareness of threats, through training ... imaging systems. The issue of radiation protection for ... lengthy angioplasty and other cardiac interventions performed under X-ray ...
Cached Biology News:Landmark study opens door to new cancer, aging treatments 2Landmark study opens door to new cancer, aging treatments 3Protecting those who heal 2
(Date:9/18/2014)... 2014 September 24 marks ASEA's "Meet ... is the manufacturer of the world's first and only ... RENU28. , The Mexico City event features renowned ... and ASEA Field Leader Shawn Catmull from Draper, UT. ... Atomic/Medical Physics from the University of Utah and devotes ...
(Date:9/17/2014)... A long-term retrospective study of breast ... via interstitial brachytherapy suggests that women younger than ... be suitable to receive the treatment. Current American ... patients in the "unsuitable" category for APBI. In ... Beaumont Health System,s Peter Y. Chen , ...
(Date:9/17/2014)... 17, 2014  The In Silico Drug Discovery Conference ... featured at the conference, which takes place at North ... and 4, 2014. Researchers, students, drug developers, business development ... following: KEYNOTE SPEAKERS ... School of Pharmacy Drug Discovery with Three ...
(Date:9/17/2014)... , Sept. 17, 2014  MiMedx Group, Inc. (NASDAQ: ... and marketer of patent protected regenerative biomaterials and ... publication of another peer-reviewed clinical study.    ... Multi-center Randomized Controlled Clinical Trial Evaluating the Use ... Allografts and Multi-layer Compression Therapy vs. Multi-layer Compression ...
Breaking Biology Technology:Announcing the ASEA Mexico Grand Opening Tour Beginning September 18th 2Partial Breast Irradiation With Interstitial Brachytherapy Appears Appropriate For Women Previously Considered Unsuitable 2Partial Breast Irradiation With Interstitial Brachytherapy Appears Appropriate For Women Previously Considered Unsuitable 3Partial Breast Irradiation With Interstitial Brachytherapy Appears Appropriate For Women Previously Considered Unsuitable 4In Silico Drug Discovery Conference Announces Speakers and Topics 2In Silico Drug Discovery Conference Announces Speakers and Topics 3In Silico Drug Discovery Conference Announces Speakers and Topics 4In Silico Drug Discovery Conference Announces Speakers and Topics 5In Silico Drug Discovery Conference Announces Speakers and Topics 6In Silico Drug Discovery Conference Announces Speakers and Topics 7MiMedx Multi-Center Randomized, Controlled VLU Clinical Study Published In Peer-Reviewed Journal 2MiMedx Multi-Center Randomized, Controlled VLU Clinical Study Published In Peer-Reviewed Journal 3MiMedx Multi-Center Randomized, Controlled VLU Clinical Study Published In Peer-Reviewed Journal 4
... LIVINGSTON and PARSIPPANY, N.J., Jan. 20, 2012 Columbia ... Pharmaceuticals, Inc. (NYSE: WPI ), today confirmed ... the U.S. Food and Drug Administration (FDA) did not ... reduction of risk of preterm birth in women with ...
... Boulder Diagnostics Inc. and Portland State University (PSU) ... agreement to develop rapid diagnostic tests for homocysteine and ... developed at PSU. Under the agreement Boulder will finance ... will be entitled to royalties on future sales of ...
... Mellon University researchers have discovered that an element commonly found ... lethal effects of a compound known as Shiga toxin. New ... by Carnegie Mellon biologists Adam Linstedt and Somshuvra Mukhopadhyay ... models. Produced by certain bacteria, including ...
Cached Biology Technology:FDA Advisory Committee Declines to Recommend Approval of Progesterone Vaginal Gel 8% for the Reduction of Risk of Preterm Birth in Women with Short Uterine Cervical Length 2FDA Advisory Committee Declines to Recommend Approval of Progesterone Vaginal Gel 8% for the Reduction of Risk of Preterm Birth in Women with Short Uterine Cervical Length 3FDA Advisory Committee Declines to Recommend Approval of Progesterone Vaginal Gel 8% for the Reduction of Risk of Preterm Birth in Women with Short Uterine Cervical Length 4FDA Advisory Committee Declines to Recommend Approval of Progesterone Vaginal Gel 8% for the Reduction of Risk of Preterm Birth in Women with Short Uterine Cervical Length 5Boulder Diagnostics Licenses Novel Rapid Detection Technology for Homocysteine and Related Compounds from Portland State University 2Carnegie Mellon study reveals potential of manganese in neutralizing deadly Shiga toxin 2Carnegie Mellon study reveals potential of manganese in neutralizing deadly Shiga toxin 3Carnegie Mellon study reveals potential of manganese in neutralizing deadly Shiga toxin 4
...
TNM-FH Insect Medium 1 liter...
IHC Polymer Detection Kit (Rabbit DAB)150 slides...
Performance, mycoplasma, virus, and endotoxin tested. Collected from calves 14 days old or less...
Biology Products: