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NITROX- Nitrogen regeneration under changing oxygen conditions

Total Cost €


EC-Contrib. €






Project "NITROX" data sheet

The following table provides information about the project.


Organization address
address: CAMPUSVEJ 55
city: ODENSE M
postcode: 5230

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Denmark [DK]
 Project website
 Total cost 212˙194 €
 EC max contribution 212˙194 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-06-01   to  2018-05-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    SYDDANSK UNIVERSITET DK (ODENSE M) coordinator 212˙194.00


 Project objective

Nitrogen (N) is a limiting nutrient for life in the ocean and the atmospheric pool of dinitrogen gas (N2) is only accessible to a limited group of microbes. Classically, those N2-fixers were supposed to be mainly present in nutrient depleted surface waters. Recent studies, however, suggest that in oxygen depleted waters, such as e.g. present in the tropical oxygen minimum zones (OMZ) or in semi-enclosed basins of the Baltic Sea, a broad diversity of N2-fixers is present. This N2-fixing community and it’s potential to contribute to the N-budget of the ocean is largely understudied, but is of critical importance, as human-made climate change leads to a loss of oxygen from the ocean. To date a systematic investigation of N2-fixation in OMZ waters and its controls and feedbacks is missing; the exploration of this important but largely understudied topic is now addressed by the present proposal ‘NITROX- Nitrogen Regeneration under changing Oxygen conditions'.

NITROX will allow to characterize and quantify factors controlling N2-fixation and primary productivity in a systematic manner. Rate determinations for C- and N2-fixation will provide valuable information about the significance of O2 depletion and the development of sulfidic conditions for the functionality of N2-fixation and primary productivity. By integrating biogeochemical rate measurements and metabolomic information into the previously applied meta-omic approach, this project will for the first time illuminate the potential of the diazotrophic community to respond to ocean deoxygenation and sulphidic anoxia, both of which are considered key challenges of the future ocean.


year authors and title journal last update
List of publications.
2018 Cameron M. Callbeck, Gaute Lavik, Timothy G. Ferdelman, Bernhard Fuchs, Harald R. Gruber-Vodicka, Philipp F. Hach, Sten Littmann, Niels J. Schoffelen, Tim Kalvelage, Sören Thomsen, Harald Schunck, Carolin R. Löscher, Ruth A. Schmitz, Marcel M. M. Kuypers
Oxygen minimum zone cryptic sulfur cycling sustained by offshore transport of key sulfur oxidizing bacteria
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-04041-x
Nature Communications 9/1 2019-06-13
2016 Florian Scholz, Carolin R. Löscher, Annika Fiskal, Stefan Sommer, Christian Hensen, Ulrike Lomnitz, Kathrin Wuttig, Jörg Göttlicher, Elke Kossel, Ralph Steininger, Donald E. Canfield
Nitrate-dependent iron oxidation limits iron transport in anoxic ocean regions
published pages: 272-281, ISSN: 0012-821X, DOI: 10.1016/j.epsl.2016.09.025
Earth and Planetary Science Letters 454 2019-06-13
2016 Jessica Gier, Stefan Sommer, Carolin R. Löscher, Andrew W. Dale, Ruth A. Schmitz, Tina Treude
Nitrogen fixation in sediments along a depth transect through the Peruvian oxygen minimum zone
published pages: 4065-4080, ISSN: 1726-4189, DOI: 10.5194/bg-13-4065-2016
Biogeosciences 13/14 2019-06-13
2016 Carolin R. Löscher, Hermann W. Bange, Ruth A. Schmitz, Cameron M. Callbeck, Anja Engel, Helena Hauss, Torsten Kanzow, Rainer Kiko, Gaute Lavik, Alexandra Loginova, Frank Melzner, Judith Meyer, Sven C. Neulinger, Markus Pahlow, Ulf Riebesell, Harald Schunck, Sören Thomsen, Hannes Wagner
Water column biogeochemistry of oxygen minimum zones in the eastern tropical North Atlantic and eastern tropical South Pacific oceans
published pages: 3585-3606, ISSN: 1726-4189, DOI: 10.5194/bg-13-3585-2016
Biogeosciences 13/12 2019-06-13
2017 D. S. Grundle, C. R. Löscher, G. Krahmann, M. A. Altabet, H. W. Bange, J. Karstensen, A. Körtzinger, B. Fiedler
Low oxygen eddies in the eastern tropical North Atlantic: Implications for N2O cycling
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-017-04745-y
Scientific Reports 7/1 2019-06-13
2018 Johanna Maltby, Lea Steinle, Carolin R. Löscher, Hermann W. Bange, Martin A. Fischer, Mark Schmidt, Tina Treude
Microbial methanogenesis in the sulfate-reducing zone of sediments in the Eckernförde Bay, SW Baltic Sea
published pages: 137-157, ISSN: 1726-4189, DOI: 10.5194/bg-15-137-2018
Biogeosciences 15/1 2019-06-13

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