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:4/24/2014)... --- New research shows that cells are more resilient ... thought. Even when missing critical components, cells can adapt ... way. , In a study published in this week,s ... Michigan State University showed that cells can grow normally ... , "Our genetic information is stored in DNA, which ...
(Date:4/24/2014)... is very pleased to announce that it has assumed ... from the University of Wisconsin. , The ... open-access, peer-reviewed journal that publishes papers on all aspects ... from the molecular to the ecological -- as well ... available to individuals and institutions, and it provides a ...
(Date:4/24/2014)... be improved with new insights into the make-up of ... the Amazon Basin have revealed unprecedented detail of the ... by comparing satellite maps with hundreds of field plots. ... more accurately the amount of carbon each tree can ... schemes, in which trees are given a cash value ...
Breaking Biology News(10 mins):Cell resiliency surprises scientists 2ESA to publish the Journal of Insect Science 2Amazon rainforest survey could improve carbon offset schemes 2
... National Institute of General Medical Sciences, part of the ... Models of Infectious Disease Agent Study for a research ... led by Stephen Eubank, professor. Infectious diseases pose ... worldwide. The Models of Infectious Disease Agent Study (MIDAS) ...
... There might be a time when instead of just drinking ... skin as a way of preventing harmful sun damage or ... caffeine guards against certain skin cancers at the molecular level ... ATR. Scientists believe that based on what they have learned ...
... from NYU Langone Medical Center,s Departments of Orthopaedic Surgery ... used to detect subtle changes in joint cartilage microstructure ... key markers of early osteoarthritis (OA). By using these ... can shift the management of the disease from eventual ...
Cached Biology News:National Institutes of Health renews successful infectious disease research study 2National Institutes of Health renews successful infectious disease research study 3More evidence that caffeine lowers risk of skin cancer 2NYU Langone experts find MRI techniques can detect early osteoarthritis 2
(Date:1/15/2014)... DTS Language Services, Inc . is pleased ... Life Science organizations who need document translations. Clients will ... their documents in advance with a selection of nearly 50 ... often a critical factor in clinical and scientific fields, and ...
(Date:1/15/2014)... Sunnyvale, CA (PRWEB) January 15, 2014 ... throughput research solutions, today announced that Lupin Limited, one ... of Freeslate’s CM Protégé PharmD System for ... in Mumbai, India, is focused on a wide range ...
(Date:1/15/2014)... , Jan. 15, 2014 TaiGen Biotechnology Company, ... exclusive agreement with R-Pharm, a leading Russian pharmaceutical company, ... the Russian Federation , ... Independent States (CIS). Nemonoxacin is a novel antibiotic for the ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Carahsoft and ... Thursday, January 23, 2014 at 2pm EST (11am PST), ... The topic focuses on how technology can turn raw, ... decisions for government agencies. The online webinar will last ...
Breaking Biology Technology:DTS Improves Efficiency for Life Science Document Translations 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2
... the rising trend toward miniaturization, carbon nanotubes which ... and possess several unique and very useful properties ... blocks in nanosized electronic and mechanical devices. But it ... tendency to clump together, that make it difficult for ...
... testament to tight integration and ... excellent ... ), a,leader in radiology and medical image and information management solutions,today ... than 100 facilities that use MEDITECH(TM) as their health,information system. AMICAS ...
... device industry to benefit ... trial recruitment efforts, MINNEAPOLIS, May 27 ... has strengthened the,pharmaceutical side of its business with ... a commitment to leveraging differentiators unique,to the medical ...
Cached Biology Technology:Weizmann Institute scientists create new nanotube structures 2AMICAS Announces Integrations at More Than 100 MEDITECH Facilities 2AMICAS Announces Integrations at More Than 100 MEDITECH Facilities 3ThreeWire Expands Presence in the Pharmaceutical Arena 2
Human Cystatin F MAb (Clone 292103)...
Rat CNTF R alpha Affinity Purified Polyclonal Ab...
... Ac-DEVD-CHO is an inhibitor ... The concentration of inhibitor ... activity must be determined ... Ten micromolar inhibitor is ...
TUNEL Apoptosis Detection Kit...
Biology Products: