Navigation Links
Complex ocean behavior studied with 'artificial upwelling'
Date:9/2/2008

eric Sciences.

"This is not a new concept," Letelier said. "It was proposed in 1976 that scientists could use wave energy to pump water from the depths to the surface and fuel plankton growth. But there are many nuances; simply bringing nutrients to the surface can result in the wrong kinds of biological growth. It also can bring water enriched with carbon dioxide, which can de-gas into the atmosphere.

"If you're adding more CO2 than subtracting by fertilizing the ocean," he added, "you're running the wheel in the wrong direction."

The answer, Letelier says, may be to pump water that contains specific ratios of nutrients particularly nitrogen and phosphorous to carbon dioxide by targeting different depths. At their research site north of Hawaii, where the ocean is about 4,500 meters deep, the bottom layers of water have too much CO2 because of the decaying organisms that have sunk to the floor.

Their studies have shown, however, that water at a depth of 300 to 700 meters has the proper ratio of nitrogen and phosphorus to trigger a two-stage phytoplankton bloom. The researchers believe that upwelling with water from that depth will first cause a bloom of diatoms, which are a common type of plankton often single-celled. The diatoms will consume the nitrogen, leaving some amount of phosphorus in the water, which will stimulate a second-stage bloom of nitrogen-fixing cyanobacteria. These blooms are often observed during summer months in open ocean waters, Letelier said.

In previous field experiments, the researchers were able to create stage-one diatom blooms by mixing deep and surface water in large incubation bottles, but they need to conduct additional studies in the ocean to see if the second stage of blooms actually occurs following additions of deep water. If the pumps had survived the ocean, White said, they may have been able to generate these blooms.

"We were able to pump about 50 cu
'/>"/>

Contact: Ricardo Letelier
letelier@coas.oregonstate.edu
541-737-3890
Oregon State University
Source:Eurekalert

0

GOOD

Page: 1 2 3 4

Related biology news :

1. Genome of simplest animal reveals ancient lineage, confounding array of complex capabilities
2. NYU scientists identify critical protein complex in formation of cell cilia
3. Texas A&M researchers develop tool to study complex clusters of genes
4. Complexity of Crohns disease revealed as gene count tops 30
5. Estimation of isolation times in the Drosophila simulans complex
6. Complex dynamics underlie bark beetle eruptions
7. Organic corn: Increasing rotation complexity increases yields
8. Simple model cell is key to understanding cell complexity
9. Finding God with biocomplexity
10. First rule of evolution suggests that life is destined to become more complex
11. Epigenetic regulation by the MMB/dREAM complex
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/18/2013)... engineer has been awarded a $394,300 grant from ... quality and flow in the new facilities of ... UT Arlington associate professor of civil engineering, will ... monochloramine to the water in an effort to ... and pipelines. Adding monochloramine is widely practiced throughout ...
(Date:6/18/2013)... a very large "dead zone" in the Gulf of ... the Chesapeake Bay this year, based on several NOAA-supported ... Michigan, Louisiana State University, and the Louisiana Universities ... Mexico hypoxic "dead" zone will be between 7,286 and ... ten largest recorded. That would range from an area ...
(Date:6/18/2013)... The National Institutes of Health has awarded $12.7 ... a selection of pharmaceutical industry compounds to explore ... including Alzheimer,s disease, Duchenne muscular dystrophy and schizophrenia. ... Uses for Existing Molecules, is led by the ... funded by the NIH Common Fund. , The ...
Breaking Biology News(10 mins):UT Arlington research to benefit quality, flow in 150-mile Integrated Pipeline 2NOAA, partners predict possible record-setting deadzone for Gulf of Mexico 2NOAA, partners predict possible record-setting deadzone for Gulf of Mexico 3NOAA, partners predict possible record-setting deadzone for Gulf of Mexico 4NIH to fund collaborations with industry to identify new uses for existing compounds 2NIH to fund collaborations with industry to identify new uses for existing compounds 3NIH to fund collaborations with industry to identify new uses for existing compounds 4
... projected this century for Oregon,s Upper Willamette River ... transportation systems, human health, forests, and fish and ... University of Oregon,s Climate Leadership Initiative and the ... The authors say that extensive efforts should begin ...
... the DNA in the nucleus of each of our cells is ... molecules serve as coding templates for the synthesis of proteins. Of ... a scant few are known: they inhibit the activity of genes ... packaged within cells. What the rest of them do within cells ...
... University of Leeds are developing methods of helping contaminated ... such as vinegar. , The harmful chromium compounds ... former textiles factories, smelters, and tanneries have been linked ... with the kidneys, liver, lungs and skin. , The ...
Cached Biology News:Eugene-Springfield face Upper Willamette climate threats 2Eugene-Springfield face Upper Willamette climate threats 3Eugene-Springfield face Upper Willamette climate threats 4CSHL researchers pinpoint structure-building role for 2 non-coding RNAs 2CSHL researchers pinpoint structure-building role for 2 non-coding RNAs 3Cleansing toxic waste -- with vinegar 2
(Date:6/18/2013)... June 18, 2013 (PRWEB) June 18, 2013 ... and attendance system in North America, has introduced ... employee data and payroll records between ExakTime’s software ... automates ExakTime software setup and keeps employee ... employee data from a business’ current payroll software, ...
(Date:6/18/2013)... (PRWEB) June 18, 2013 Nasseo, Inc. ... Innovation Challenge Winner out of hundreds of applicants by ... spring Arizona Innovation Challenge . The Arizona Innovation ... for a technology commercialization challenge, granting a financial award ... promising technology ventures. Nasseo’s state of the art dental ...
(Date:6/18/2013)... ALBANY, N.Y. , June 18, 2013 /PRNewswire/ ... that its Burlington, Mass. , ... U.S. Drug Enforcement Administration (DEA) registration to handle ... represents the DEA,s acknowledgement of Burlington,s ... inventory control and documentation. (Logo: ...
(Date:6/18/2013)... DUBLIN , June 18, 2013 /PRNewswire/ ... http://www.researchandmarkets.com/research/5g3rx5/dna_sequencing ) has announced the addition of ... Markets and Companies " to their offering. ... This report briefly reviews basics of human ... their applications. Current large and small sequencers ...
Breaking Biology Technology:ExakTime Introduces AccountLinx Plus 2Nasseo Named 2013 Innovation Challenge Winner by Arizona Commerce Authority 2AMRI Burlington Receives DEA Approval to Handle Controlled Substances 2DNA Sequencing: Technologies, Markets and Companies - 2013 Report 2
... -- Third Wave Technologies Inc , a maker ... its Invader 2D6 analysis panel, which provides clinical trial ... assays available for the important 2D6 gene. , ,The ... trial laboratories the ability to configure custom assay panels. ...
... of competing together to race the fastest cars they can ... of 20 engineers, scientists and technicians from Ohio State University ... to win the $1 million dollar grand prize awarded to ... , ,The Defense Advanced Research Projects Agency (DARPA) has a ...
... DNASTAR, Inc . announced today the hiring and appointment ... of the Madison-based bioinformatics company. Schwei has 25 years ... with Promega Corporation, PanVera Corporation and Invitrogen Corporation. ... management and leadership, said Fred Blattner, DNASTARs chief of ...
Cached Biology Technology:Third Wave Releases Gene Test 2Oshkosh Truck Teams with OSU to Compete in DARPA Million Dollar Tech Derby 2Oshkosh Truck Teams with OSU to Compete in DARPA Million Dollar Tech Derby 3
The HQ505, 20 OptiGreen filter for the Molecular Imager FX is a band pass filter used for detection of Cy2 and FITC with 532 nm excitation....
The filter 530DF28 for the Molecular Imager FX is a band pass filter for ECL Plus, AttoPhos, SYBR Green, Alexa Fluor 488, FITC, Cy2, and Pro-Q Emerald dyes....
... Fluorescein In Situ Apoptosis Detection Kit ... the indirect TUNEL method, utilizing an ... a Fluorescein reporter molecule. It provides ... Results are analyzed using either flow ...
... 3000 system, 220-240 V, is used for nucleic ... vertical slab gel format. The system includes the ... of separating nucleic acids with single base-pair resolution ... (IPC and bonded inner glass plate, outer glass ...
Biology Products: