Navigation Links
Iron critical to ocean productivity, carbon uptake

ity.

"Nitrogen and phosphorus are nutrients that come up from the ocean bottom to feed the upper water column," Behrenfeld said. "Iron, on the other hand, can come from the deep or from the air, but it also enters the ocean through dust deposited by the wind. Windstorms blowing sand and dust off large deserts are a major source of iron for the world's oceans.

"It's like dumping a load of Geritol or some other iron supplement into the water."

Three large areas appear limited by a lack of iron, the researchers say ?the southern ocean around Antarctica, the sub-arctic north Pacific below Alaska, and a huge area in the tropical Pacific centered on the equator. With their newfound knowledge of fluorescence, the scientists believe they now can use satellite imagery to identify specific areas that are iron-stressed ?and how they respond to changes such as the sudden influx of iron from a windstorm.

"It turns out different places in the ocean are missing different nutrients," said Robert Sherrell, a scientist from Rutgers University and a co-author on the study. "The new fluorescence technology now allows us to tell which combination of nutrients is stressing the phytoplankton."

Behrenfeld said the presence of iron stress in the ocean links phytoplankton to the climate through changes in terrestrial-based dust deposited in the ocean, but it is too early to tell if there is an impact of recent climate change on iron-stressed populations because the satellite data record is too short.

"But now we have the tools to determine that," he emphasized.

The northern portion of the tropical Pacific is more nitrogen-stressed and doesn't have the "false greenness," according to Behrenfeld.

The researchers are creating new models of carbon cycling using NASA satellite imagery which they have calibrated using their ship-based measurements of fluorescence.

The role of the ocean in the global carbon cycle is critical ?a
'"/>

Source:Oregon State University


Page: 1 2 3

Related biology news :

1. Wisconsin scientists grow critical nerve cells
2. Plant hemoglobins: Oxygen handlers critical for nitrogen fixation
3. White blood cell waste disposal system plays critical regulatory role
4. Scripps research scientists solve structure of a critical innate immune system protein
5. CO2 sensing proves critical for fungal pathogens to adapt to life in air and human hosts
6. Scientists map one of biologys critical light-sensing structures
7. Software might revolutionize glucose monitoring in critically ill patients
8. UW scientists unravel critical genetic puzzle for flu virus replication
9. Absence of critical protein linked to infertility
10. The critical importance of mangroves to ocean life
11. Researches discover gene critical for protection against septic-shock-induced death
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Iron critical ocean productivity carbon uptake

(Date:9/30/2014)... seedless watermelon, salmon, and strawberries all have in common? ... sets of chromosomes and are diploid, these organisms are ... of chromosomesseedless watermelon and salmon have 3 and 4 ... While this might seem surprising, in fact most plant ... discovered over a century ago, but only recently, with ...
(Date:9/30/2014)... environmental scientists and engineers, led by Clemson University ... $5.25 million grant from the U.S. Department of ... make a direct positive impact on South Carolina ... of radioactive contaminants. , "Understanding the scientific and ... environmental aspects of nuclear technologies is imperative if ...
(Date:9/30/2014)... release is available in German . ... among the most expensive foods in the world. Because they ... them. But the distinctive smell of truffles is not only ... scientists under the direction of the Goethe University Frankfurt have ... by soil bacteria which are trapped inside truffle fruiting bodies. ...
Breaking Biology News(10 mins):Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 2Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 3Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 4Researchers get $5.25 million to advance nuclear technologies in South Carolina 2On the trail of the truffle flavor 2
... meeting of the United Nations Forum on Forests, now ... the world's forests or, some environmentalists worry, merely an ... U.S. delegation to the U.N. forum is international environmental ... the two-week negotiation will conclude with one or more ...
... Since 1976 the Ebola virus has caused some lethal ... humans do not become directly contaminated from the animal ... from infected carcasses of chimpanzees, gorillas and certain forest ... past several years by IRD scientists and their partners ...
... natural killer T (NKT) cells, the immune system's sentinels, ... invaders or signs of tissue damage and demonstrate a ... , The new studies show that NKT cells crawl ... halt only when they receive a chemical signal to ...
Cached Biology News:U.N. mulls the protection of Earth's forests 2Ebola virus: from wildlife to dogs 2Ebola virus: from wildlife to dogs 3Ebola virus: from wildlife to dogs 4Natural Killers Could Lead to New Hepatitis Treatments 2Natural Killers Could Lead to New Hepatitis Treatments 3Natural Killers Could Lead to New Hepatitis Treatments 4
(Date:10/1/2014)... 1, 2014 Pfanstiehl has announced the ... manufactured in the USA ... been recognized for playing a key role in ... of evidence that media supplementation with mannose can ... glycosylation," according to Dr. Christopher Wilcox , ...
(Date:10/1/2014)... 2014 The participants committed to not ... spending their own time adjusting, tweaking and testing virtual ... were ready for judging. , “I enjoyed being involved ... leader. “The entries showed a commendable range exploring ... of the print medium and the creativity of the ...
(Date:10/1/2014)... CA (PRWEB) September 30, 2014 ... user-friendly, cost-effective tools to address sales, training and ... has developed innovative mobile applications to turn ... outlining the agency’s latest customized mobile app creations, ... http://www.studiopmg.com/work . , In partnership with Toyota, StudioPMG ...
(Date:10/1/2014)... MA (PRWEB) September 30, 2014 ... SoundConnect announces four new-hosted collaboration bundles ... bundles deliver high quality conferencing experiences for low, ... packages to choose from, businesses have optimized solutions ... bundled solutions include audio only minutes (1K, ...
Breaking Biology Technology:Pfanstiehl Launches cGMP-produced Mannose for Cell Culture Media Optimization & Glycoprotein Biosynthesis 2Array Architects Challenges Staff to Create with 3D Printer 2Digital Agency Studio PMG Launches New Case Studies on Website 2SoundConnect Launches New Audio, Web and Video Bundles 2
... 2011 VIVUS, Inc. (Nasdaq: VVUS ), ... therapeutic products, today reported its financial results for the first quarter ... the quarter ended March 31, 2011, VIVUS reported a net loss ... net loss of $18.8 million or $0.23 per share for the ...
... 2, 2011 Richard Resnick, GenomeQuest,s chief executive ... May 3, 2011, at the Biomarker World Congress ... Sequencing on Companion Diagnostics" for pharmaceutical and biotechnology ... and data management technologies. The Biomarker ...
... 2, 2011 Dyadic International, Inc. ("Dyadic") (OTC ... the discovery, development, manufacture and sale of enzyme ... industrial enzyme industries, announced today that its research ... has entered into a research agreement with Sanofi ...
Cached Biology Technology:VIVUS Reports First Quarter 2011 Financial Results 2VIVUS Reports First Quarter 2011 Financial Results 3VIVUS Reports First Quarter 2011 Financial Results 4VIVUS Reports First Quarter 2011 Financial Results 5GenomeQuest to Lead Biomarker World Congress Panel on Applying Whole Genome Sequencing to Developing Companion Diagnostics 2Dyadic Netherlands Enters Into R&D Collaboration With Sanofi Pasteur and EnGen Bio 2
The PxE Thermal Cycler (PxE) is a licensed 96 well PCR machine, developed to provide all fundamental features for value for money thermal cycling....
PxE thermal Cycler. 0.5ml block holds 48 0.5 ml tubes or 96 0.3 ml tubes. Adjustable height heated lid. Outstanding uniformity. Advanced control algorithms for reduced reaction times. User frien...
0.2ml Gradient Block MBSR. Robot compatible block ejection mechanism. Stackable. (96 well block - holds 1 plate 0.2ml x 96 well plate)...
A Highly Purified, Cost-Effective Taq DNA Polymerase...
Biology Products: