Navigation Links
How much nitrogen is fixed in the ocean?
Date:8/10/2012

Of course scientists like it when the results of measurements fit with each other. However, when they carry out measurements in nature and compare their values, the results are rarely "smooth". A contemporary example is the ocean's nitrogen budget. Here, the question is: how much nitrogen is being fixed in the ocean and how much is released? "The answer to this question is important to predicting future climate development. All organisms need fixed nitrogen in order to build genetic material and biomass", explains Professor Julie LaRoche from the GEOMAR | Helmholtz Centre for Ocean Research Kiel.

Despite scientific efforts, the nitrogen budget suffers from an apparent dilemma. The analysis of ocean sediment as a long-term climate archive has shown that the amounts of fixed nitrogen equaled those of released nitrogen for the past 3000 years. However, modern measurements in the ocean demonstrate that the amounts of released nitrogen exceed the amounts of nitrogen being fixed. These results leave a "gap" in the nitrogen budget and show inconsistencies between past, long-term reconstruction and short-term measurements.

In 2010, the GEOMAR microbiologist Wiebke Mohr pointed out that these inconsistencies could be partially due to the methods widely used to measure modern biological nitrogen fixation. Following this finding, scientists from GEOMAR, Christian-Albrechts-University of Kiel (CAU), Max Planck Institute for Marine Microbiology (MPI) Bremen and Dalhousie University in Halifax (Canada) tested a new approach in the Atlantic Ocean which had been suggested by Mohr: The results of the study are now presented in the international journal "Nature".

The study, which was funded by the Collaborative Research Centre 754 and the SOPRAN project, was carried out aboard the German research vessels METEOR and POLARSTERN where the participating scientists took water samples at various spots in the tropical and equatorial Atlantic and the
'/>"/>

Contact: Jan Steffen
jsteffen@geomar.de
Helmholtz Centre for Ocean Research Kiel (GEOMAR)
Source:Eurekalert

Page: 1 2

Related biology news :

1. Modern hybrid corn makes better use of nitrogen, study shows
2. Nitrogen pollution changing Rocky Mountain National Park vegetation, says CU-Boulder-led study
3. Scientists develop new carbon accounting method to reduce farmers use of nitrogen fertilizer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/22/2015)... 22, 2015 According to a ... (2D, 3D, Thermal, Emotion, Forensic), by Software (Middleware, Databases), by ... Utilities, Consumer and Home) - Global Forecast to 2020", ... $2.77 Billion in 2015 to $6.19 Billion by 2020, ... 79 market data Tables and   43 Figures spread ...
(Date:5/19/2015)... 18, 2015 Fingerprint Cards (FPC) has ... FPC1145, FPC1155 and FPC1035 from one if its module partners. ... including Q3 2015 and the sensors will be used by ... values for 2015 hereby amount to 740 MSEK to date. ... 140 MSEK and a number of smaller orders not separately ...
(Date:5/14/2015)... NEW YORK , May 14, 2015 ... specializing in identity verification and online remote ... Instructure, a software-as-a-service (SaaS) company and creator ... Shared customers of the two companies will ... Proctortrack in Canvas. As a ...
Breaking Biology News(10 mins):Facial Recognition Market Worth $6.19 Billion by 2020 2Facial Recognition Market Worth $6.19 Billion by 2020 3Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2Verificient and Instructure Announce Alliance Partnership to Provide Online Proctoring for K-12 and Higher Education Institutions 2
... NEW ORLEANS Three and a half years after ... and sustained use of genetically engineered T cells to ... of Medicine at the University of Pennsylvania and the ... results of studies involving both adults and children with ...
... can have beneficial health effects, scientists have sought to ... A new study by researchers in Wisconsin, Spain, and ... in the body following a period of mindfulness meditation. ... of intensive mindfulness practice in a group of experienced ...
... pulses support the idea that intuition-defying quantum interactions between ... light to fuel their growth. But key details of ... role that quantum physics may play in understanding them ... an Overview Article in the January issue of ...
Cached Biology News:Penn Medicine team reports on study of first 59 leukemia patients who received cell therapy 2Penn Medicine team reports on study of first 59 leukemia patients who received cell therapy 3Penn Medicine team reports on study of first 59 leukemia patients who received cell therapy 4Penn Medicine team reports on study of first 59 leukemia patients who received cell therapy 5Study reveals gene expression changes with meditation 2Study reveals gene expression changes with meditation 3Quantum effects help cells capture light, but the details are obscure 2
(Date:5/26/2015)... 26, 2015 The University of ... Max Planck Society establishing the Max Planck-University ... center will link two of the world's foremost research ... only the third Max Planck Centre in North America. ... for optics and photonics, was with university and ...
(Date:5/26/2015)... 26, 2015 Innovacyn, a leader ... the human and animal health industries, announced today ... Innovators of Agriculture College Scholarship Award. The scholarship ... exhibits a passionate commitment to the agriculture industry ... year’s winners, Alexis Pedrow from Anderson County Jr/Sr ...
(Date:5/26/2015)... May 26, 2015  Sangamo BioSciences, Inc. (NASDAQ: SGMO ... and CEO, will provide an update on the progress of ... of the company,s business strategy at 1:30pm ET on Monday, ... The conference is being held in New York, ... live and may be accessed via a link on the ...
(Date:5/26/2015)... 26, 2015 Tianyin Pharmaceutical Inc. (NYSE Amex: ... the patented biopharmaceutical, modernized traditional Chinese medicine (mTCM), branded ... Company,s Annual Meeting of Shareholders for fiscal year ended ... at the Company,s office located in Chengdu, ... AM (local time in Chengdu, China ...
Breaking Biology Technology:Third Max Planck Centre in North America Inaugurated at University of Ottawa 2Third Max Planck Centre in North America Inaugurated at University of Ottawa 3Innovacyn Announces Winners Of This Year’s Vetericyn® College Scholarship Award 2Innovacyn Announces Winners Of This Year’s Vetericyn® College Scholarship Award 3Sangamo BioSciences Announces Presentation At The Jefferies 2015 Global Healthcare Conference 2TPI Adjourned Its 2014 Annual Shareholder Meeting and Received Notice of Non-Compliance with NYSE MKT Continued Listing Requirements 2TPI Adjourned Its 2014 Annual Shareholder Meeting and Received Notice of Non-Compliance with NYSE MKT Continued Listing Requirements 3
... a lot of excitement a few years ago following ... could be used to build nanoparticles of a given ... remained out of reach. An international team of researchers ... and Professor Friedrich Simmel of the Technische Universitaet Muenchen ...
... 2012 The Foundation of UMDNJ, an affiliate of ... biomarkers grant through the Bill & Melinda Gates Foundation,s ... seeks to overcome persistent bottlenecks in creating new tools ... With the grant, Dr. David Alland, ...
... United Arab Emirates   is the First Country in ... Allergy Sufferers - Nycomed, a Takeda company, ... in the United Arab Emirates for the treatment of allergic ... adults and adolescents over the age of 12.   ...
Cached Biology Technology:Nano spiral staircases modify light 2Foundation of UMDNJ Receives Grand Challenges Tuberculosis Biomarkers Grant 2Foundation of UMDNJ Receives Grand Challenges Tuberculosis Biomarkers Grant 3Nycomed, a Takeda Company, Launches Omnaris® Nasal Spray in the UAE for the Treatment of Allergic Rhinitis 2Nycomed, a Takeda Company, Launches Omnaris® Nasal Spray in the UAE for the Treatment of Allergic Rhinitis 3Nycomed, a Takeda Company, Launches Omnaris® Nasal Spray in the UAE for the Treatment of Allergic Rhinitis 4
Phosphotyrosine IgG mouse monoclonal antibody: Alkaline Phosphatase conjugate...
... TAMRA isomers are predominantly used for labeling ... for labeling peptides and nucleotides because they ... is often required in the conjugation processes. ... for labeling peptides and proteins. 6-TAMRA is ...
anti-Lactate Dehydrogenase...
Mouse monoclonal [6E10] to LAP2 ( Abpromise for all tested applications). entrezGeneID: 7112 SwissProtID: P42166...
Biology Products: