Navigation Links
U-M researcher and colleagues predict possible record-setting Gulf of Mexico 'dead zone'
Date:6/19/2013

uding Minnesota, Wisconsin, Illinois and Iowa, had spring seasons that ranked among the 10 wettest on record. Iowa had its wettest spring on record, with 17.61 inches of precipitation, according to the National Climatic Data Center.

Nutrient-rich runoff from those farming states ends up in the Mississippi River and eventually makes its way to the Gulf. The amount of nitrogen entering the Gulf of Mexico each spring has increased by about 300 percent since the 1960s, mainly due to increased agricultural runoff.

According to U.S. Geological Survey estimates, 153,000 metric tons of nutrients flowed down the Mississippi and Atchafalaya rivers to the northern Gulf in May 2013, an increase of 94,900 metric tons over last year's drought-reduced 58,100 metric tons. The 2013 input is 16 percent higher than the average nutrient load estimated over the past 34 years.

In the Gulf and the Bay, the nutrient-rich waters fuel explosive algae blooms. When the algae die and sink, bottom-dwelling bacteria decompose the organic matter, consuming oxygen in the process. The result is a low-oxygen (hypoxic) or oxygen-free (anoxic) region in the bottom and near-bottom waters: the dead zone.

Fish and shellfish either leave the oxygen-depleted waters or die, resulting in losses to commercial and sports fisheries. In the Gulf, the dockside value of commercial fisheries was $629 million in 2009, and nearly 3 million recreational anglers contributed more than $1 billion to the region's economy.

Chesapeake Bay dead zones, which have been highly variable in recent years, threaten a multi- year effort to restore the bay's water quality and to enhance its production of crabs, oysters and other fisheries. The Geological Survey estimates that 36,600 metric tons of nitrogen entered the estuary from the Susquehanna and Potomac rivers from January through May, which is 30 percent below the average loads estimated between 1990 and 2013.

The final Ches
'/>"/>

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

Page: 1 2 3 4

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
3. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
4. U of Alberta researcher steps closer to understand autoimmune diseases
5. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
6. UNH researchers find African farmers need better climate change data to improve farming practices
7. Ottawa researchers to lead world-first clinical trial of stem cell therapy for septic shock
8. Researchers uncover molecular pathway through which common yeast becomes fungal pathogen
9. Researchers print live cells with a standard inkjet printer
10. Columbia Engineering and Penn researchers increase speed of single-molecule measurements
11. Researchers reveal how a single gene mutation leads to uncontrolled obesity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2015)... March 24, 2015   NexID Biometrics LLC, ... security-authentication needs, today announced the beginning of shipments of ... The company, based in Potsdam, ... three-day Connect:ID Expo, which began here today at the ... version 2.0 of its SDK boosts the accuracy rate ...
(Date:3/23/2015)... 23, 2015 SoundView Technology Group issues a new ... NXTD ) Wocket smart wallet. SoundView was one of the selected ... experience with the Wocket in multiple scenarios and outlets. ... and other retailers, making both debit and credit card payments.  ... says, "If the company meets their plans in 2015, it ...
(Date:3/23/2015)... ANGELES , March 23, 2015  In the ... Federal fraud case conviction losses. This figure accounts for ... which, according to The Nilson Report, exceeds $11 billion ... investigative tool after a crime has occurred. Investor ... and polygraph expert Joe Paolella partnered to ...
Breaking Biology News(10 mins):NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4Polygraph Test Now Used to Protect Investors From Fraud 2Polygraph Test Now Used to Protect Investors From Fraud 3
... Thirty to fifty percent of the global conversion of nutrients ... of the National Academy of Science of the United States ... state that this conversion is not carried out by denitrifying ... Nitrogen compounds act as fertilizers and are the ecological basis ...
... with variant Creutzfeldt-Jakob (vCJD) prions may no longer be ... a transfusion. Pall Corporation (NYSE: PLL) announced today the ... Prion Reduction Filter System. It is the first and ... the causative agent of vCJD from red cells, the ...
... only three months after deciding to create an ... trial registry and results database using an independent ... trials can be accessed by anyone, anywhere, with ... give patients and healthcare providers ready access to ...
Cached Biology News:Anammox bacteria produce nitrogen gas in oceans' snackbar 2Anammox bacteria produce nitrogen gas in oceans' snackbar 3First technology to remove prions that cause vCJD from blood launched 2First technology to remove prions that cause vCJD from blood launched 3First technology to remove prions that cause vCJD from blood launched 4Roche clinical trial registry and results database launched 2Roche clinical trial registry and results database launched 3
(Date:5/1/2015)... 1, 2015 Investor-Edge has ... Ltd (NASDAQ: GENE ), Agilent Technologies Inc. ... (NYSE: TMO ), Sequenom Inc. (NASDAQ: ... ). Free research report on Genetic Technologies can ... April 30, 2015, the NASDAQ Composite ended at ...
(Date:4/30/2015)... 2015  Roka Bioscience, Inc. (NASDAQ: ROKA ), ... solutions for the detection of foodborne pathogens, announced plans ... of 2015 on May 7, 2015 after the close ... also host a conference call at 4:30 p.m. Eastern ... quarter financial results. During the conference call, material information ...
(Date:4/30/2015)... , April 30, 2015 Oxford Finance ... debt to life sciences and healthcare services companies, today ... term loan agreement with Celula, Inc., a diagnostic testing ... diseases, enabling better patient care and improved outcomes.  Proceeds ... development and expand the commercialization of its products in ...
(Date:4/30/2015)... MENLO PARK, Calif. , April 30, 2015 /PRNewswire/ ... company in the emerging field of regenerative medicine, today ... operating results on Thursday, May 7, 2015 after the ... host a conference call and webcast on Thursday, May ... Pacific to discuss the results and recent corporate developments. ...
Breaking Biology Technology:Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 2Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 3Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 4Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 5Roka Bioscience to Report First Quarter 2015 Financial Results On May 7, 2015 2Oxford Finance Provides $10 Million Debt Financing to Celula 2Asterias Biotherapeutics to Report First Quarter Results on May 7, 2015 2Asterias Biotherapeutics to Report First Quarter Results on May 7, 2015 3
... April 1 Nutrition 21, Inc. (Nasdaq: ... that help consumers manage blood sugar levels, improve cardiovascular ... today that on March 31, 2009 it redeemed all ... required by the terms of these shares. The Company ...
... and Saint Joseph,s Hospital Team UpATLANTA, April 1 ... have joined together to begin the first regional research ... pancreatic cancer. Tissue and serum samples from patients ... in genetic and cellular features between normal and tumor ...
... to prior yearROCHESTER, N.Y., April 1 VirtualScopics, Inc. ... quantitative imaging for clinical trials, today announced that its ... its active and awarded projects and commonly referred to ... million which compares to $13.7 million at the same ...
Cached Biology Technology:Nutrition 21 Redeems Series I Convertible Preferred Shares 2Nutrition 21 Redeems Series I Convertible Preferred Shares 3Groundbreaking Research Begins for Pancreatic and Lung Cancers 2Groundbreaking Research Begins for Pancreatic and Lung Cancers 3VirtualScopics' Project Balance Exceeds a Record $31 Million 2VirtualScopics' Project Balance Exceeds a Record $31 Million 3
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Biology Products: