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:8/1/2014)... 1, 2014Lesbian, gay, bisexual, and transgender individuals who want ... as some of their heterosexual and cisgendered peers, such ... additional physiological and legal challenges to become parents. ... assisted reproduction options is presented in the article " ... published in LGBT Health , a ...
(Date:8/1/2014)... group of marine mammals have officially named a ... Sousa sahulensis , according to the Wildlife ... study describing the newly named species is the ... all available historical records, physical descriptions, and genetic ... cetaceans ranging from the coast of West Africa ...
(Date:8/1/2014)... tricky enough. Knowing what causes them at the molecular ... Iowa researchers have created the most detailed map to ... associated with blinding diseases, such as age-related macular degeneration. ... the choroid, which supplies blood and oxygen to the ... in the abundance of proteins in different areas of ...
Breaking Biology News(10 mins):Advances in assisted reproduction create more options & new legal issues for LGBT couples 2Scientists name new species of cetacean: The Australian humpback dolphin 2Scientists name new species of cetacean: The Australian humpback dolphin 3A map for eye disease 2
... A new technique for transplanting the ovaries of women ... cancer treatment was outlined to the 25th annual conference ... today (Monday 29 June). Dr. Pascal Piver, ... Limoges, France, described a new, two-step method of ovarian ...
... Shingu City, Japan--Deepsea Drilling Vessel CHIKYU has resumed IODP ... the Kii Peninsula of Japan. The scientific drilling expedition,s ... meters. Following sea floor surveys, the crew began fitting ... an upper section of the first borehole to be ...
... June 2009 Elsevier, the leading publisher of scientific, ... the highlights of its journal impact factor performance in ... factors (IF) increase from 2007 to 2008. According to ... journals took the #1 position in 51 categories (of ...
Cached Biology News:Ovarian transplantation: First baby is born after a new technique 2First riser-drilling research operations undertaken 2Elsevier announces 2008 journal impact factor highlights 2Elsevier announces 2008 journal impact factor highlights 3
(Date:8/1/2014)... Research and Markets  has announced ... for Flow Cytometry in IVD Applications" report ... http://photos.prnewswire.com/prnh/20130307/600769 Flow cytometers are powerful ... component of advanced IVD labs in developed nations. ... but their newer clinical applications included the commercialization ...
(Date:8/1/2014)... Frederick, MD (PRWEB) August 01, 2014 ... and RFID Solutions provider, today officially announces the ... the prestigious Boji Science Park, Baoshan District in ... RURO Shanghai is under the management of Mr. ... International. , In the past three years, RURO’s ...
(Date:8/1/2014)... Aug. 1. 2014 As one of the ... AACC Annual Meeting & Clinical Lab Expo is the ... care are introduced to the healthcare world. This year, ... 650 exhibitors will include the latest diagnostic technology in ... in smartphones and biosensors have enabled the development of ...
(Date:8/1/2014)... Aug. 1, 2014 AACC, a global scientific ... laboratory medicine, unveiled an updated brand identity today that ... to the changing healthcare environment and continue to do ... so patients get the care they need. ... membership play an essential role in saving lives and ...
Breaking Biology Technology:The World Market for Flow Cytometry in IVD Applications 2RURO Opens Office in Shanghai, China 2Lab-on-a-Chip Technology to Be Featured at 2014 AACC Annual Meeting & Clinical Lab Expo 2Lab-on-a-Chip Technology to Be Featured at 2014 AACC Annual Meeting & Clinical Lab Expo 3AACC Debuts Refreshed Brand Identity 2
... long-awaited speaking faculty for the September Pharma ChemOutsourcing ... conference website reports Mark Alexay, President of Apaporis ... comprised of 100 speakers from pharmaceutical companies and ... the pipeline. The speaker list may be viewed ...
... Christine Lawless, MD, has accepted the position as ... continuing medical education (CME), beginning March 2, 2009. Recognized ... medicine cardiology, Dr. Lawless recently completed her clinical tenure ... where she was Associate Professor of Internal Medicine and ...
... Endpoints,NEW YORK, March 10 Intra-Cellular Therapies, Inc. today ... trial in patients with Sleep Maintenance Insomnia (SMI). ... wave sleep and decreased the duration of wake after ... prespecified primary and key secondary endpoints of the trial. ...
Cached Biology Technology:Pharma ChemOutsourcing Unveils 100 Pharma & Biotech Speaker Faculty for 2009 Conference September 14-16 in Long Branch, NJ 2Former President of Sports Cardiology Consultants, LLC Christine Lawless, MD, MBA, ABCL, FACC, FACSM, Named Medical Director of CME Enterprise 2Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 2Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 3Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 4Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 5Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 6Intra-Cellular Therapies Reports Positive Final Results of a Phase II Clinical Trial with ITI-007 in Patients with Sleep Maintenance Insomnia 7
... long electrophoresis hood is a ... systems. Placed on the transilluminator, ... place and provides a darkroom ... the lab bench. This 15.2 ...
... derived from frozen embedded tissue blocks, which ... to ensure the highest quality. Tissues of ... block, sectioned at a thickness of 7 ... are large (3-5 mm in diameter) in ...
... are derived from frozen embedded tissue blocks, ... procedures to ensure the highest quality. Tissues ... one block, sectioned at a thickness of ... are large (3-5mm in diameter) in comparison ...
... microarrays are derived from Paraffin embedded tissue ... control procedures to ensure the highest quality. ... in one block, sectioned at a thickness ... slides. Sections are large (3-5mm in diameter) ...
Biology Products: