Navigation Links
Ocean islands fuel productivity and carbon sequestration through natural iron fertilization
Date:1/30/2009

0 square kilometers (the size of Ireland). In contrast, the area south of Crozet experiences only a small, short bloom later in the season.

"Our first question was, 'where does the iron come from?'" said Charette. "Airborne dust wasn't the solution there isn't enough exposed soil on Crozet for winds to carry iron from the island to the deep water where the bloom occurs. While other studies concluded that upwelling from the deep ocean was the main source of the iron, we wanted to test the hypothesis that the iron was coming from the island itself and the iron-rich sediments in the shallow water and the plateau area around it."

Since the currents move from south to north over Crozet, the researchers reasoned that iron could be entrained in the water column as it flows over the plateau. First, they needed a way to understand how long it would take iron to travel from the island's shore to the bloom site and if the rate of supply was enough to kick-start and sustain the bloom for several months. Iron concentrations in the water wouldn't tell them where it came from, so the team sampled waters around Crozet looking for naturally-occurring radium isotopes, which, like iron, originate in the sediments and can therefore be used to quantify the amount of iron that the islands and surrounding sediments can supply to the bloom area. The decaying isotopes provided a built-in clock for the investigators to determine how quickly the water moves over the plateau and into deeper water. The distribution of radium in the water column demonstrated that the source of the iron was the island and the sediments in the shallow water around it and the plateau.

A second question the team sought to answer was whether the differences in the blooms between the north and south sides of Crozet would result in greater amounts of carbon held in the deep ocean. Using sediment traps and sediment cores, the researchers uncovered the first evidence that carbon deposited a
'/>"/>

Contact: Stephanie Murphy
media@whoi.edu
508-289-2271
Woods Hole Oceanographic Institution
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Ocean research officials hail completion of modernization for US scientific ocean drilling vessel
2. Dramatic expansion of dead zones in the oceans
3. Ocean acidification could have broad effects on marine ecosystems
4. Ocean fish farming harms wild fish, study says
5. Ocean acidification from CO2 emissions will cause physiological impairment to jumbo squid
6. Ocean growing more acidic faster than once thought
7. Europe cores in EUROCORES: Ocean drilling in EuroMARC
8. Uncovering secrets of life in the ocean
9. Mysterious microbe plays important role in ocean ecology
10. Mysterious microbe may play important role in ocean ecology
11. Ecologists use oceanographic data to predict future climate change
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/1/2015)... 1, 2015  NXT-ID, Inc. (NASDAQ: NXTD ) ... on the growing mobile commerce market, announces the second ... is underway to early access pre-order customers. ... at retail outlets including Walmart, Target, AT&T, Dunkin, Donuts, ... was accepted at all outlets and very easy to ...
(Date:3/31/2015)... , March 31, 2015  Elephant Talk Communications ... a global provider of Software Defined Network Architecture (ET ... announced total revenue of approximately $20.4 million for the ... restated $19.5 million for the year ended December 31, ... 2014, the Company had completed its multi-year transition away ...
(Date:3/30/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/lc9bnl/global_gesture ... Gesture Recognition Market in Automotive Sector 2014-2018" report ... Global Gesture Recognition market in Automotive Sector to grow ... Gesture recognition is the ability of a ... an individual. Gesture recognition technology can be 2D-based or ...
Breaking Biology News(10 mins):NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 2Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 3Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 5Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 6Global Gesture Recognition Market in Automotive Sector Report 2015 - Growing Number of Partnerships 2
... unlike diamonds, aren,t forever. And when they wear out, ... into amino acids, where they will be recycled into ... Hughes Medical Institute have identified a new way that ... unwanted and potentially toxic proteins, a finding that has ...
... data from two clinical trials presented today at the ... detection of both hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC) ... the world and most often develops as a late ... cause. The overall survival rate of HCC is poor ...
... release is available in French . Ottawa, ... biology research projects will help manage, analyze and interpret vast ... public health and other areas of importance to Canadians and ... needed to advance genomics to its full potential for the ...
Cached Biology News:Scientists discover new way protein degradation is regulated 2Novel screening tests for liver cancer 2Novel screening tests for liver cancer 3New research projects to enhance bioinformatics and computational biology tools and methodologies 2
(Date:5/4/2015)... Md. , May 4, 2015   Intrexon ... will release first quarter 2015 financial results after the ... host a conference call that day at 5:30 PM ... business update. The conference call may be ... and asking to join the "Intrexon Conference Call."  Participants ...
(Date:5/1/2015)... Md. , May 1, 2015  Northwest Biotherapeutics ... company developing DCVax® personalized immune therapies for solid tumor ... the $28.5 million second tranche of a $40 million ... Woodford first invested $25 million in NW ... Woodford entered into an agreement with the Company for ...
(Date:5/1/2015)... SAN DIEGO , May 1, 2015 /PRNewswire/ ... biotechnology company engaged in the development of biosimilar ... proteins, announced today that its first quarter 2015 ... 14, 2015, before the open of market. At 8:30 ... conference call to discuss the financial results and ...
(Date:5/1/2015)... May 1, 2015 Investor-Edge ... Technologies Ltd (NASDAQ: GENE ), Agilent Technologies ... Inc. (NYSE: TMO ), Sequenom Inc. (NASDAQ: ... PKI ). Free research report on Genetic Technologies ... Thursday, April 30, 2015, the NASDAQ Composite ended ...
Breaking Biology Technology:Intrexon to Announce First Quarter 2015 Financial Results on Monday, May 11, 2015 2NW Bio Closes On $28.5 Million Second Tranche Of Woodford $40 Million Financing 2NW Bio Closes On $28.5 Million Second Tranche Of Woodford $40 Million Financing 3Pfenex To Report First Quarter 2015 Results and Provide Business Update on Thursday, May 14, 2015 2Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 2Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 3Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 4Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 5
... CHAPEL HILL, N.C., May 7 In ... intense,pricing, political, regulatory and market pressures. These ... business model. Consequently,pharmaceutical and biotechnology companies must ... investment in the commercial enterprise to ensure,health ...
... Scientific,Corporation (NYSE: BSX ) today announced CE ... of pacemakers. ALTRUA is Boston Scientific,s most,advanced pacemaker ... and battery longevity. It is the first Boston ... the heart beats too,slowly -- usually less than ...
... 7 Nikon Instruments, Inc., (http://www.nikoninstruments.com ) ... begun direct,sales and technical support for Nikon,s ... along with Industrial products,including Industrial Microscopes, Measuring ... Rocky Mountain territories. These regions were,previously served ...
Cached Biology Technology:U.S. Pharmaceutical Budget and Staffing: Powerful New Metrics-Based Study 2Boston Scientific Announces European Approval and Market Launch of New Family of Advanced Pacemakers 2Boston Scientific Announces European Approval and Market Launch of New Family of Advanced Pacemakers 3Boston Scientific Announces European Approval and Market Launch of New Family of Advanced Pacemakers 4Nikon Instruments Begins Direct Sales and Technical Support in Southern California and Rocky Mountain Territories 2
...
...
Request Info...
LECHNER AND LaVECK MEDIUMfor the clonal growth of normal human bronchial and other epithelial cells. Requires additives. With glutamine.Recommended storage condition:oC to 8oCIntended use(s):research...
Biology Products: