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:5/14/2015)... , May 14, 2015 Research and Markets ... the "Fingerprint Sensors Market in Smart Mobile Devices ... report believes that 2014 was a watershed year for ... introduction of ,Apple Pay,. Apple gave fingerprint sensors a ... payment service. Fingerprint sensors are a must-have feature in ...
(Date:5/10/2015)... GOTHENBURG, Sweden , May 11, 2015 ... touch fingerprint sensors FPC1025 and FPC1155 from the distributor World ... one of FPC,s distributors in Asia . ... the sensors will be used by smartphone manufacturers in ... is included in the communicated revenue guidance of + 1 000 ...
(Date:4/27/2015)... 2015  For more than four decades, AUVSI,s ... the premier worldwide event for the unmanned land, sea, ... event for any local, national, or trade news organization ... markets and current applications of unmanned technologies. The conference ... $48 billion industry, and how it will soon impact ...
Breaking Biology News(10 mins):Global Smart Mobile Devices Fingerprint Sensors Market 2015-2019: Key Vendors are Authentec, Validity Sensors, Fingerprint Cards, Next Biometrics Group. IDEX, and Qualcomm 2Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 235 Million 2UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 2UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 3UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 4UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 5
... Bottlenose dolphins that reside in designated Special Areas of ... might be at risk from pile driving. The frequency ... ability to communicate, find food and avoid predators. This ... their ability to breed successfully. Lactating females and young ...
... have long been encouraging Americans to add more fruits and ... discovered one way in which flavonoid-rich apples inhibit the kinds ... diseases, including heart disease and age-related cancers. , "We've known ... that are protecting the body. We just haven't known exactly ...
... computer cursors for fruit juice rewards have revealed that ... movements required for given actions, but rather the events ... is significant, said the researchers, because it yields new ... in this higher brain region, called the lateral prefrontal ...
Cached Biology News:Dolphins at risk 2UC Davis researchers reveal apples' protective ways 2Himalayan forests disappearing 2
(Date:5/26/2015)... 26, 2015 Regenestem Network ... cells clinic in Buenos Aires, Argentina. The clinic will ... care specialist. Pastrana has assembled a multidisciplinary team of ... in her state-of-the-art Puerto Madero office. , The ... to phase IV clinical studies in cellular therapies, and ...
(Date:5/26/2015)... HILDEN, Deutschland, May 26, 2015 ... ®   ermöglicht klinischen Laboren ... dazugehöriger Berichte; Vorstellung auf den Konferenzen ClinGen, ... N.V. (NASDAQ: QGEN ; Frankfurt Prime ... QIAGEN Clinical Insight ® (QCI™) bekannt. ...
(Date:5/26/2015)... GERMANTOWN, Md. , May 26, 2015   Intrexon ... biology, announced today that Gregory Frost , Ph.D., Senior ... at the Jefferies 2015 Global Healthcare Conference on Wednesday, June ... Grand Hyatt in New York City . ... XON ) is Powering the Bioindustrial Revolution with Better ...
(Date:5/26/2015)... Miami, FL (PRWEB) May 26, 2015 ... training, Inc. have announced plans for the company’s first ... 9, 2015, followed by a full day, hands-on stem ... hosted by J. Victor Garcia Gimenez, M.D., President of ... to the medical community’s increasing interest in regenerative medicine ...
Breaking Biology Technology:Regenestem Network and Silvina Pastrana, M.D. Announce the Opening of a New Stem Cell Clinic in Buenos Aires 2Regenestem Network and Silvina Pastrana, M.D. Announce the Opening of a New Stem Cell Clinic in Buenos Aires 3QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 2QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 3QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 4QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 5QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 6Intrexon to Present at the Jefferies 2015 Global Healthcare Conference 2Stem Cell Training, Inc. Announces First European Symposium on Cellular and Regenerative Medicine 2Stem Cell Training, Inc. Announces First European Symposium on Cellular and Regenerative Medicine 3
... Society of,Hematology (ASH), the world,s largest professional association ... the 49th ASH Annual,Meeting on December 8-11, 2007, ... meeting will premiere the latest research and treatments ... the premier forum for physicians and,researchers from around ...
... BEIJING and CLAREMONT, Calif., Dec. 5 /Xinhua-PRNewswire-FirstCall/ ... Board: KWBT),announced that under the direction of ... is developing the Kiwa Fertilizer Distribution Network,(Hebei). ... been,established in Hebei to sell Kiwa fertilizer ...
... scheduled for January for lead antibody program ... ... ARIUS Research Inc. (TSX:,ARI), a biotechnology company discovering and developing the next ... and technology transfer agreement for its CD44 Cancer,Stem Cell antibody with Avid ...
Cached Biology Technology:49th Annual Meeting of the American Society of Hematology Will Feature the Latest Research in Blood Diseases 249th Annual Meeting of the American Society of Hematology Will Feature the Latest Research in Blood Diseases 3Kiwa Fertilizer Distribution Network (Hebei) Grows to 900 Terminals 2Kiwa Fertilizer Distribution Network (Hebei) Grows to 900 Terminals 3ARIUS announces manufacturing agreement with Avid Bioservices for CD44 Cancer Stem Cell antibody 2ARIUS announces manufacturing agreement with Avid Bioservices for CD44 Cancer Stem Cell antibody 3