Articles | Volume 19, issue 24
https://doi.org/10.5194/bg-19-5879-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-5879-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Nitrogen isotopes reveal a particulate-matter-driven biogeochemical reactor in a temperate estuary
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht,
Germany
Tina Sanders
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht,
Germany
Yoana Voynova
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht,
Germany
Scott D. Wankel
Woods Hole Oceanographic Institution, Woods Hole,
MA 02543, USA
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Cited
15 citations as recorded by crossref.
- Unveiling the hidden nitrogen sink: significant contribution of oxygen-tolerant denitrification in a freshwater river–lake continuum J. Lü et al. https://doi.org/10.1016/j.wroa.2026.100579
- Estuarine mixing drives organic nitrogen transformation and bioavailability dynamics C. Han et al. https://doi.org/10.5194/bg-23-5533-2026
- Dissolved nitric oxide in the lower Elbe Estuary and the Port of Hamburg area R. Ingeniero et al. https://doi.org/10.5194/bg-21-3425-2024
- Seasonality, rather than estuarine gradient or particle suspension/sinking dynamics, determines estuarine carbon distributions S. Tobias-Hünefeldt et al. https://doi.org/10.1016/j.scitotenv.2024.171962
- Shifty baselines: The landscape factor in archaeological applications of stable carbon and nitrogen isotopes D. Huisman https://doi.org/10.1016/j.jas.2025.106332
- Fluvial runoff fluctuations regulate downstream estuarine nitrogen transformations along land-to-sea continuum X. Yan et al. https://doi.org/10.1016/j.jhydrol.2025.134431
- Spatial and temporal patterns of zooplankton trophic interactions and carbon sources in the eutrophic Elbe estuary (Germany) J. Biederbick et al. https://doi.org/10.1093/icesjms/fsae189
- Impact of primary production and net ecosystem metabolism on carbon and nutrient cycling at the land-sea interface L. Rewrie et al. https://doi.org/10.3389/fmars.2025.1548463
- Osmotolerance is a driver of microbial carbon processes in the Elbe estuary S. Tobias-Hünefeldt et al. https://doi.org/10.1128/msystems.01790-25
- Methylmercury cycling in the Bohai Sea and Yellow Sea: Reasons for the low system efficiency of methylmercury production L. Chen et al. https://doi.org/10.1016/j.watres.2024.121792
- Seasonal variability of nitrous oxide concentrations and emissions in a temperate estuary G. Schulz et al. https://doi.org/10.5194/bg-20-3229-2023
- Physiological Influence of Fe and Cu Availability on Nitrogen Isotope Fractionation during Ammonia Oxidation D. Martocello & S. Wankel https://doi.org/10.1021/acs.est.3c05964
- Unveiling active nitrate and nitrite cycling in a eutrophic coastal bay, southern China from a dual isotope perspective Z. Li et al. https://doi.org/10.1016/j.marenvres.2025.107060
- Simplified bacterial denitrification method using Stenotrophomonas nitritireducens for nitrite dual isotope analysis in low-concentration environmental samples S. Deb & D. Lewicka-Szczebak https://doi.org/10.3389/fenvs.2025.1536882
- Recent inorganic carbon increase in a temperate estuary driven by water quality improvement and enhanced by droughts L. Rewrie et al. https://doi.org/10.5194/bg-20-4931-2023
15 citations as recorded by crossref.
- Unveiling the hidden nitrogen sink: significant contribution of oxygen-tolerant denitrification in a freshwater river–lake continuum J. Lü et al. https://doi.org/10.1016/j.wroa.2026.100579
- Estuarine mixing drives organic nitrogen transformation and bioavailability dynamics C. Han et al. https://doi.org/10.5194/bg-23-5533-2026
- Dissolved nitric oxide in the lower Elbe Estuary and the Port of Hamburg area R. Ingeniero et al. https://doi.org/10.5194/bg-21-3425-2024
- Seasonality, rather than estuarine gradient or particle suspension/sinking dynamics, determines estuarine carbon distributions S. Tobias-Hünefeldt et al. https://doi.org/10.1016/j.scitotenv.2024.171962
- Shifty baselines: The landscape factor in archaeological applications of stable carbon and nitrogen isotopes D. Huisman https://doi.org/10.1016/j.jas.2025.106332
- Fluvial runoff fluctuations regulate downstream estuarine nitrogen transformations along land-to-sea continuum X. Yan et al. https://doi.org/10.1016/j.jhydrol.2025.134431
- Spatial and temporal patterns of zooplankton trophic interactions and carbon sources in the eutrophic Elbe estuary (Germany) J. Biederbick et al. https://doi.org/10.1093/icesjms/fsae189
- Impact of primary production and net ecosystem metabolism on carbon and nutrient cycling at the land-sea interface L. Rewrie et al. https://doi.org/10.3389/fmars.2025.1548463
- Osmotolerance is a driver of microbial carbon processes in the Elbe estuary S. Tobias-Hünefeldt et al. https://doi.org/10.1128/msystems.01790-25
- Methylmercury cycling in the Bohai Sea and Yellow Sea: Reasons for the low system efficiency of methylmercury production L. Chen et al. https://doi.org/10.1016/j.watres.2024.121792
- Seasonal variability of nitrous oxide concentrations and emissions in a temperate estuary G. Schulz et al. https://doi.org/10.5194/bg-20-3229-2023
- Physiological Influence of Fe and Cu Availability on Nitrogen Isotope Fractionation during Ammonia Oxidation D. Martocello & S. Wankel https://doi.org/10.1021/acs.est.3c05964
- Unveiling active nitrate and nitrite cycling in a eutrophic coastal bay, southern China from a dual isotope perspective Z. Li et al. https://doi.org/10.1016/j.marenvres.2025.107060
- Simplified bacterial denitrification method using Stenotrophomonas nitritireducens for nitrite dual isotope analysis in low-concentration environmental samples S. Deb & D. Lewicka-Szczebak https://doi.org/10.3389/fenvs.2025.1536882
- Recent inorganic carbon increase in a temperate estuary driven by water quality improvement and enhanced by droughts L. Rewrie et al. https://doi.org/10.5194/bg-20-4931-2023
Saved (final revised paper)
Latest update: 29 Aug 2026
Short summary
Nitrogen is an important macronutrient that fuels algal production in rivers and coastal regions. We investigated the production and removal of nitrogen-bearing compounds in the freshwater section of the tidal Elbe Estuary and found that particles in the water column are key for the production and removal of water column nitrate. Using a stable isotope approach, we pinpointed regions where additional removal of nitrate or input from sediments plays an important role in estuarine biogeochemistry.
Nitrogen is an important macronutrient that fuels algal production in rivers and coastal...
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