Articles | Volume 17, issue 10
https://doi.org/10.5194/bg-17-2839-2020
https://doi.org/10.5194/bg-17-2839-2020
Research article
 | 
28 May 2020
Research article |  | 28 May 2020

Spatial variations in sedimentary N-transformation rates in the North Sea (German Bight)

Alexander Bratek, Justus E. E. van Beusekom, Andreas Neumann, Tina Sanders, Jana Friedrich, Kay-Christian Emeis, and Kirstin Dähnke

Related authors

Recent inorganic carbon increase in a temperate estuary driven by water quality improvement and enhanced by droughts
Louise C. V. Rewrie, Burkard Baschek, Justus E. E. van Beusekom, Arne Körtzinger, Gregor Ollesch, and Yoana G. Voynova
Biogeosciences, 20, 4931–4947, https://doi.org/10.5194/bg-20-4931-2023,https://doi.org/10.5194/bg-20-4931-2023, 2023
Short summary
Distribution and source attribution of alkalinity in the Dutch Wadden Sea
Mona Norbisrath, Justus E. E. van Beusekom, and Helmuth Thomas
EGUsphere, https://doi.org/10.5194/egusphere-2023-2595,https://doi.org/10.5194/egusphere-2023-2595, 2023
Short summary
Alkalinity and nitrate dynamics reveal dominance of anammox in a hyper-turbid estuary
Mona Norbisrath, Andreas Neumann, Kirstin Dähnke, Tina Sanders, Andreas Schöl, Justus E. E. van Beusekom, and Helmuth Thomas
Biogeosciences, 20, 4307–4321, https://doi.org/10.5194/bg-20-4307-2023,https://doi.org/10.5194/bg-20-4307-2023, 2023
Short summary
Seasonal variability of nitrous oxide concentrations and emissions in a temperate estuary
Gesa Schulz, Tina Sanders, Yoana G. Voynova, Hermann W. Bange, and Kirstin Dähnke
Biogeosciences, 20, 3229–3247, https://doi.org/10.5194/bg-20-3229-2023,https://doi.org/10.5194/bg-20-3229-2023, 2023
Short summary
Particulate organic matter in the Lena River and its delta: from the permafrost catchment to the Arctic Ocean
Olga Ogneva, Gesine Mollenhauer, Bennet Juhls, Tina Sanders, Juri Palmtag, Matthias Fuchs, Hendrik Grotheer, Paul J. Mann, and Jens Strauss
Biogeosciences, 20, 1423–1441, https://doi.org/10.5194/bg-20-1423-2023,https://doi.org/10.5194/bg-20-1423-2023, 2023
Short summary

Related subject area

Biogeochemistry: Environmental Microbiology
Fractionation of stable carbon isotopes during formate consumption in anoxic rice paddy soils and lake sediments
Ralf Conrad and Peter Claus
Biogeosciences, 21, 1161–1172, https://doi.org/10.5194/bg-21-1161-2024,https://doi.org/10.5194/bg-21-1161-2024, 2024
Short summary
Technical note: A comparison of methods for estimating coccolith mass
Celina Rebeca Valença, Luc Beaufort, Gustaaf Marinus Hallegraeff, and Marius Nils Müller
EGUsphere, https://doi.org/10.5194/egusphere-2023-3085,https://doi.org/10.5194/egusphere-2023-3085, 2023
Short summary
Characteristics of bacterial and fungal communities and their associations with sugar compounds in atmospheric aerosols at a rural site in northern China
Mutong Niu, Shu Huang, Wei Hu, Yajie Wang, Wanyun Xu, Wan Wei, Qiang Zhang, Zihan Wang, Donghuan Zhang, Rui Jin, Libin Wu, Junjun Deng, Fangxia Shen, and Pingqing Fu
Biogeosciences, 20, 4915–4930, https://doi.org/10.5194/bg-20-4915-2023,https://doi.org/10.5194/bg-20-4915-2023, 2023
Short summary
Responses of globally important phytoplankton species to olivine dissolution products and implications for carbon dioxide removal via ocean alkalinity enhancement
David A. Hutchins, Fei-Xue Fu, Shun-Chung Yang, Seth G. John, Stephen J. Romaniello, M. Grace Andrews, and Nathan G. Walworth
Biogeosciences, 20, 4669–4682, https://doi.org/10.5194/bg-20-4669-2023,https://doi.org/10.5194/bg-20-4669-2023, 2023
Short summary
Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation
Ze Ren, Shudan Ye, Hongxuan Li, Xilei Huang, and Luyao Chen
Biogeosciences, 20, 4241–4258, https://doi.org/10.5194/bg-20-4241-2023,https://doi.org/10.5194/bg-20-4241-2023, 2023
Short summary

Cited articles

Alkhatib, M., Lehmann, M. F., and del Giorgio, P. A.: The nitrogen isotope effect of benthic remineralization-nitrification-denitrification coupling in an estuarine environment, Biogeosciences, 9, 1633–1646, https://doi.org/10.5194/bg-9-1633-2012, 2012. 
Aller, R. C.: Benthic Fauna and Biogeochemical Processes in Marine Sediments: The Role of Burrows Structures, in: Nitrogen cycling in Coastal Marine Environments, edited by: Blackburn, T. H. and Sørensen, J., Scope, Chichester, 301–338, 1988. 
Bale, N. J., Villanueva, L., Fan, H., Stal, L. J., Hopmans, E. C., Schouten, S., and Sinninghe Damste, J. S.: Occurrence and activity of anammox bacteria in surface sediments of the southern North Sea, FEMS Microbiol. Ecol., 89, 99–110, 2014. 
Blackburn, T. H. and Henriksen, K.: Nitrogen cycling in different types of sediments from Danish waters, Limnol. Oceanogr., 28, 477–493, 1983. 
Brase, L., Sanders, T., and Daehnke, K.: Anthropogenic changes of nitrogen loads in a small river: external nutrient sources vs. internal turnover processes, Isot. Environ. Healt. S., 54, 168–184, 2018.  
Download
Short summary
The following paper highlights the importance of benthic N-transformation rates in different sediment types in the southern North Sea as a source of fixed nitrogen for primary producers and also as a sink of fixed nitrogen. Sedimentary fluxes of dissolved inorganic nitrogen support ∼7 to 59 % of the average annual primary production. Semi-permeable and permeable sediments contribute ∼68 % of the total benthic N2 production rates, counteracting eutrophication in the southern North Sea.
Altmetrics
Final-revised paper
Preprint