Navigation Links
Researchers discover source of essential nutrients for mid-ocean algae
Date:6/24/2010

For almost three decades, oceanographers have been puzzled by the ability of microscopic algae to grow in mid-ocean areas where there is very little nitrate, an essential algal nutrient. In this week's issue of Nature, MBARI chemical oceanographer Ken Johnson, along with coauthors Stephen Riser at the University of Washington and David Karl at the University of Hawaii, show that mid-ocean algae obtain nitrate from deep water, as much as 250 meters below the surface. This finding will help scientists predict how open-ocean ecosystems could respond to global warming.

The sea around Hawaii may be clear and blue, but it hides an enduring oceanographic mystery. Surface waters in this and other mid-ocean areas contain almost no nitrate or other plant nutrients. Yet each year, microscopic algae (phytoplankton) flourish in these vast, open-ocean areas. Although miniscule in size, these mid-ocean algae consume about one fifth of all the carbon dioxide taken up by plants and algae worldwide.

To solve this mystery, Johnson and his fellow researchers used a robotic drifter called an Apex float, which automatically moves from the sea surface down to 1,000 meters and then back again, collecting data as it goes. Researchers at the University of Washington outfitted this drifter with an oxygen sensor and a custom version of Johnson's In Situ Ultraviolet Spectrophotometer (ISUS), which measures nitrate concentrations in seawater.

The design and deployment of this custom drifter was funded by grants from the National Science Foundation, the Office of Naval Research, the National Oceanic and Atmospheric Administration, the Gordon and Betty Moore Foundation, and the David and Lucile Packard Foundation.

In December 2007, researchers from University of Hawaii placed the drifter in the ocean northeast of Oahu, where it collected ocean profiles once every five days for almost two years.

From January through October of each year, the instruments on the dr
'/>"/>

Contact: Kim Fulton-Bennett
kfb@mbari.org
831-775-1835
Monterey Bay Aquarium Research Institute
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Researchers at UH work to prevent neurological diseases
2. Researchers create self-assembling nanodevices that move and change shape on demand
3. UCI researchers develop worlds first plastic antibodies
4. Little is understood about alcohols effect on fetal development, Georgetown researchers say
5. Researchers identify a fundamental process in lysosomal function and protein degradation
6. High-yield agriculture slows pace of global warming, say Stanford researchers
7. Mass. General researchers develop functional, transplantable rat liver grafts
8. OU researchers find way to prevent blindness in research model for retinitis pigmentosa
9. Texas A&M veterinary researchers achieve cloning first
10. Researchers discover mechanism that limits scar formation
11. Researchers identify gene linked to hereditary incontinence
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers discover source of essential nutrients for mid-ocean algae
(Date:8/28/2014)... million kilometres of new roads will be built worldwide ... Earth,s last wildernesses, where they bring an influx of ... an ambitious study has created a ,global roadmap, for ... balance the competing demands of development and environmental protection. ... that estimates that natural importance of ecosystems and a ...
(Date:8/28/2014)... to alert the world to Global Warming, has called ... stored underground. He says that Carbon Capture, combined with ... to avoid global warming getting out of control over ... York) made the call during his presentation to the ... are meeting to discuss Carbon Capture and Storage. ...
(Date:8/28/2014)... at Ludwig-Maximilians-Universitaet (LMU) in Munich have assigned a ... of predatory arthropods. These animals lived in shallow ... related forms found in Jurassic strata. , ... shallow marine habitat and were fossilized some 435 ... denizens of the Silurian seas although they ...
Breaking Biology News(10 mins):Study shows where on the planet new roads should and should not go 2Study shows where on the planet new roads should and should not go 3Global warming pioneer calls for CO2 to be taken from atmosphere and stored underground 2Paleontology: Oldest representative of a weird arthropod group 2
... nanotechnology fanciers suggest that, like proverbial birds of ... or clump together. This tendency, they ... manufacturing increases and the number of nanotechnology-enabled products ... Maynard, chief science advisor to the Project on ...
... completing the first large-scale report sequencing breast and colon ... studied the vast majority of protein-coding genes which now ... mutated in relatively few cancers. Their report, published ... indicates that while little is known about these less-commonly ...
... a reality today, but how can we find out about ... a full record of the Earths climate for several hundred ... that can be taken to the lab for analysis. Incredibly, ... Antarctic regions, and a European Science Foundation programme has a ...
Cached Biology News:Nanoparticle exposures happen, says expert 2Genome update defines landscape of breast and colon cancers 2Genome update defines landscape of breast and colon cancers 3European lead in reading past climates from ice cores 2European lead in reading past climates from ice cores 3
(Date:8/28/2014)... 28, 2014 A new market ... world is available from Strategic Consulting, Inc., the ... Industrial Microbiology Market Review, Fourth Edition: Global Review ... (IMMR—4) tracks and compares microbiology test volumes, market ... Europe and Asia, and forecasts future volumes and ...
(Date:8/28/2014)... 2014 PrimeSource Building Products, Inc., ... SoundConnect to support their communication needs ... and web conferencing platform GlobalMeet powered by SoundConnect. ... needs. SoundConnect delivers award winning “results driven” ... Products will be utilizing GlobalMeet powered by ...
(Date:8/28/2014)... Whitehouse Laboratories is excited to announce that ... PTI Inspection Systems that will enable it to ... leak testing method development and validation programs using the ... part of this agreement, Whitehouse Labs has taken delivery ... developed and manufactured by PTI. The HVLD (high ...
(Date:8/27/2014)... Green & Grow Inc. (GGI) has ... and secured Otter Capital as a significant new partner. ... of GGI’s Agriplier™ technology, building on recent compelling field ... our first meeting, we have been impressed with Otter ... said Alan Sobba, President and CEO of GGI. “We ...
Breaking Biology Technology:2 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3PrimeSource Chooses SoundConnect as Collaboration Provider 2Whitehouse Labs Renews Partnership with PTI Inspection Systems 2Whitehouse Labs Renews Partnership with PTI Inspection Systems 3Green & Grow Inc. Secures $6M Series B Funding from Otter Capital 2Green & Grow Inc. Secures $6M Series B Funding from Otter Capital 3
... Company Provides R&D Pipeline Update -, IRVINE, Calif., March ... financial results for the year ended,December 31, 2007. ISTA reported ... 2007, a 78% increase over the full-year 2006 results of,$33.0 ... 56% over,the fourth quarter of 2006., "2007 was a ...
... WEST CHESTER, Pa., March 6 VWR Funding, Inc., the,parent company of VWR International, LLC, ... its fourth quarter and year-end financial results., Who: ... Jack L. Wyszomierski, Executive ... Financial Officer, When: ...
... Chemistry Testing Market, FULLERTON, Calif., March ... ) announced today that it has launched ... an integrated work cell which,consolidates chemistry and ... addition to the company,s work cell family,combines ...
Cached Biology Technology:ISTA Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 2ISTA Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 3ISTA Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 4ISTA Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 5ISTA Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 6ISTA Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 7ISTA Pharmaceuticals Reports Fourth Quarter and Full-Year 2007 Financial Results 8VWR Funding, Inc. to Hold Fourth Quarter and Year-End 2007 Financial Results Conference Call 2Beckman Coulter Releases the High-Volume UniCel(R) DxC 880i Integrated Work Cell 2
... Thermocycler provides high speed and excellent temperature ... a TGradient Thermocycler can be run without ... a silver block for 48 or 96 ... plates or in-situ applications are available. The ...
General description: MaxiSorp TM surface is ideal for arraying molecules with mixed hydrophilic/hydrophobic domains such as proteins ID clarifier: Maxisorp(tm) with lid...
... Ideal for staining westerns and includes stickers ... Pour spouts in each corner facilitate pouring ... be used for identification. Lid is designed ... for staining several gels simultaneously. Lid also ...
ID clarifier: non-treated with lid...
Biology Products: