Navigation Links
Ocean's harmful low-oxygen zones growing, are sensitive to small changes in climate
Date:6/17/2011

Fluctuations in climate can drastically affect the habitability of marine ecosystems, according to a new study by UCLA scientists that examined the expansion and contraction of low-oxygen zones in the ocean.

The UCLA research team, led by assistant professor of atmospheric and oceanic sciences Curtis Deutsch, used a specialized computer simulation to demonstrate for the first time that the size of low-oxygen zones created by respiring bacteria is extremely sensitive to changes in depth caused by oscillations in climate. These oxygen-depleted regions, which expand or contract depending on their depth, pose a distinct threat to marine life.

"The growth of low-oxygen regions is cause for concern because of the detrimental effects on marine populations entire ecosystems can die off when marine life cannot escape the low-oxygen water," said Deutsch. "There are widespread areas of the ocean where marine life has had to flee or develop very peculiar adaptations to survive in low-oxygen conditions."

The study, which was published June 9 in the online edition the journal Science and will be available in an upcoming print edition, also showed that in addition to consuming oxygen, marine bacteria are causing the depletion of nitrogen, an essential nutrient necessary for the survival of most types of algae.

"We found there is a mechanism that connects climate and its effect on oxygen to the removal of nitrogen from the ocean," Deutsch said. "Our climate acts to change the total amount of nutrients in the ocean over the timescale of decades."

Low-oxygen zones are created by bacteria living in the deeper layers of the ocean that consume oxygen by feeding on dead algae that settle from the surface. Just as mountain climbers might feel adverse effects at high altitudes from a lack of air, marine animals that require oxygen to breathe find it difficult or impossible to live in these oxygen-depleted environments,
'/>"/>

Contact: Kim DeRose
kderose@support.ucla.edu
University of California - Los Angeles
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Office of Naval Research engages international partners at OCEANS 2011
2. Significant role of oceans in onset of ancient global cooling
3. UGA scientists discover missing links in the biology of cloud formation over the oceans
4. How do you manage US oceans? Look at local successes
5. First miniature sensors to measure the temperature of the world’s oceans
6. Cephalopods experience massive acoustic trauma from noise pollution in the oceans
7. Brown scientists to discuss best practices for the oceans
8. Acid oceans demand greater reef care
9. Oxygen-free early oceans likely delayed rise of life on planet
10. Sharks and wolves: Predator, prey interactions similar on land and in oceans
11. New Naked Scientists series investigates our oceans
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Jan. 13, 2015  Today, FreeWavz ( www.FreeWavz.com ), ... crowdfunding campaign on Fundable, https://www.fundable.com/freewavz . FreeWavz ... production capacity to meet customer demand. ... http://photos.prnewswire.com/prnh/20150113/168790 Invented by ...
(Date:1/22/2015)...  A man-made form of insulin delivered by nasal spray ... adults with mild cognitive impairment and Alzheimer,s disease dementia, ... Wake Forest Baptist Medical Center. The study,s ... impairment (MCI) or mild to moderate Alzheimer,s dementia (AD). ...
(Date:1/22/2015)... NEW YORK , Jan. 21, 2015  Analyst Report Issued ... Credit Card Brands report showed that planet-wide, transactions at merchants ... 2011, while the total number of credit, debit, and prepaid ... the U.S. were victims of fraudulent card usage in 2012, ...
Breaking Biology News(10 mins):FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2
... disabilities who are struggling to regain the use of ... engineers and students from Rochester Institute of Technology. ... the human body, to improve the performance of external ... disabilities, such as strokes or major spinal cord injuries, ...
... know all there is to know about Escherichia coli, ... has more than four thousand genes, and the functions ... Siegele, a biology professor at Texas A&M University whose ... , Harmless E. coli strains are normally found in ...
... Understanding, through its Institute for Arctic Studies, has ... Science Foundation through its Integrative Graduate Education and ... grant supports the development of an interdisciplinary doctoral ... a focus on rapid environmental change. "This grant ...
Cached Biology News:Robotics research: Enhancing the lives of people with disabilities 2GIANT-Coli: A novel method to quicken discovery of gene function 2Dartmouth awarded NSF grant for new polar sciences, engineering grad program 2Dartmouth awarded NSF grant for new polar sciences, engineering grad program 3
(Date:1/22/2015)... 22, 2015   Cypher Genomics, Inc., the ... SQNM ), the leading molecular diagnostics ... generation noninvasive prenatal tests (NIPT). Through this agreement, ... Mantis™, to advance analysis of clinically-relevant fetal sub-chromosomal ...
(Date:12/24/2014)... , Dec. 24, 2014  United Therapeutics Corporation (NASDAQ: ... (NYSE: MDT ) has submitted a pre-market ... (FDA) for the use of Medtronic,s SynchroMed ® ... catheter) for use with United Therapeutics, Remodulin ® ...
(Date:12/24/2014)... Missouri (PRWEB) December 23, 2014 GMO corn ... company, Syngenta, are in the process of being consolidated in ... is In Re: Syngenta AG MIR 162 Corn Litigation, MDL ... of Kansas. , Management of the Syngenta GMO corn multidistrict ...
(Date:12/24/2014)... 23, 2014 The report provides ... definition, classification, application and industry overview. This report ... cost structure. Production is separated by regions, technology ... materials, equipment, downstream client survey, marketing channels, industry ...
Breaking Biology Technology:Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2Worldwide Methyl Mercaptan Market 2015-2020 Forecasts on Development & Trends Now Available at ReportsnReports.com 2
... MATK ) announced today that life,sDHA(TM), its ... and heart health, is now available to,consumers in ... Challenge,Dairy Products, Inc. Challenge 15 oz. Spreadable Butter ... Founded in 1911, Challenge Dairy Products, Inc., is ...
... Calif., Feb. 4 CV,Therapeutics, Inc. (Nasdaq: ... the companies have entered into an agreement under,which ... technology to develop a drug eluting stent (DES). ... development milestone payments,royalties and other potential payments on ...
... Outside of North ... America, ... facility in Cartago, Costa Rica has been,recognized with the 2008 Shingo Prize ... Prize outside North America,-- is being honored for its achievements in driving ...
Cached Biology Technology:Challenge Spreadable Butter Now Features Martek's life'sDHA(TM) 2Challenge Spreadable Butter Now Features Martek's life'sDHA(TM) 3CV Therapeutics and Medlogics Device Corporation Sign Licensing Agreement for CVT's Innovative Stent Coating Technology 2CV Therapeutics and Medlogics Device Corporation Sign Licensing Agreement for CVT's Innovative Stent Coating Technology 3Baxter's Costa Rica Facility Recognized With Shingo Prize for Excellence in Manufacturing 2
Homo sapiens 4-aminobutyrate aminotransferase Antigen: Recombinant Protein...
... off the clot fasted non-Swiss Albino mice of mixed ... N-02: Citrate N-04: Heparin ... Oxalate N-10: EDTA (Na) N-03: ... N-09: K3EDTA N-11: Heparin (K) ...
One-step, microplate or cuvet, colorimetric, linear detection range 8 mg/dL to 300 mg/dL. Procedure: 5 min....
RABBIT ANTI HUMAN TRRAP (CT) Immunogen: Recombinant C-terminal kinase-related domain of human TRRAP....
Biology Products: