Articles | Volume 19, issue 11
https://doi.org/10.5194/bg-19-2903-2022
© 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-19-2903-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Causes of the extensive hypoxia in the Gulf of Riga in 2018
Stella-Theresa Stoicescu
CORRESPONDING AUTHOR
Department of Marine Systems, Tallinn University of Technology, Tallinn, 19086, Estonia
Jaan Laanemets
Department of Marine Systems, Tallinn University of Technology, Tallinn, 19086, Estonia
Taavi Liblik
Department of Marine Systems, Tallinn University of Technology, Tallinn, 19086, Estonia
Māris Skudra
Latvian Institute of Aquatic Ecology, Riga, 1007, Latvia
Oliver Samlas
Department of Marine Systems, Tallinn University of Technology, Tallinn, 19086, Estonia
Inga Lips
Department of Marine Systems, Tallinn University of Technology, Tallinn, 19086, Estonia
EuroGOOS AISBL, Brussels, 1000, Belgium
Urmas Lips
Department of Marine Systems, Tallinn University of Technology, Tallinn, 19086, Estonia
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Cited
13 citations as recorded by crossref.
- Recent stagnation period and unprecedented deoxygenation in the Baltic Sea: causes and consequences T. Liblik et al. https://doi.org/10.3389/feart.2025.1638978
- Submesoscale dynamics in the Baltic Sea – a review U. Lips et al. https://doi.org/10.1016/j.pocean.2026.103746
- New approaches to unveil the unknown: oxygen depletion and internal eutrophication in a Baltic lagoon over decades G. Schernewski et al. https://doi.org/10.3389/fenvs.2025.1620191
- Seasonal dynamics and regional distribution patterns of CO2 and CH4 in the north-eastern Baltic Sea S. Lainela et al. https://doi.org/10.5194/bg-21-4495-2024
- Phosphorus fractions and their vertical distribution in seabed sediments of the eastern Baltic Sea M. Ausmeel et al. https://doi.org/10.1016/j.csr.2024.105340
- Continuing long-term expansion of low-oxygen conditions in the Eastern Gulf of Finland S. Stoicescu et al. https://doi.org/10.1016/j.oceano.2024.02.002
- Modelling the effects of benthic fauna on carbon, nitrogen and phosphorus dynamics in the Baltic Sea E. Ehrnsten et al. https://doi.org/10.5194/bg-19-3337-2022
- High-resolution characterization of the development and decay of seasonal hypoxia in the Gulf of Riga, Baltic Sea T. Liblik et al. https://doi.org/10.3389/fmars.2023.1119515
- Nutrients monitoring on the Bui multipurpose dam project in the Savannah region of Ghana J. Asomaning et al. https://doi.org/10.1016/j.enmm.2024.100960
- Modeling the pathways of microplastics in the Gulf of Finland, Baltic Sea – sensitivity of parametrizations E. Siht et al. https://doi.org/10.1007/s10236-024-01649-0
- Modeled surface salinity and satellite data as proxy for Secchi depth and watercolor of the Gulf of Riga D. Cepīte-Frišfelde et al. https://doi.org/10.1051/e3sconf/202343610001
- Anoxic water upwelling event in the central Baltic Sea T. Liblik https://doi.org/10.1016/j.rsma.2026.105323
- Large-scale atmospheric circulation and its impact on the Baltic Sea region: controls, predictability and consequences F. Börgel et al. https://doi.org/10.5194/esd-17-415-2026
13 citations as recorded by crossref.
- Recent stagnation period and unprecedented deoxygenation in the Baltic Sea: causes and consequences T. Liblik et al. https://doi.org/10.3389/feart.2025.1638978
- Submesoscale dynamics in the Baltic Sea – a review U. Lips et al. https://doi.org/10.1016/j.pocean.2026.103746
- New approaches to unveil the unknown: oxygen depletion and internal eutrophication in a Baltic lagoon over decades G. Schernewski et al. https://doi.org/10.3389/fenvs.2025.1620191
- Seasonal dynamics and regional distribution patterns of CO2 and CH4 in the north-eastern Baltic Sea S. Lainela et al. https://doi.org/10.5194/bg-21-4495-2024
- Phosphorus fractions and their vertical distribution in seabed sediments of the eastern Baltic Sea M. Ausmeel et al. https://doi.org/10.1016/j.csr.2024.105340
- Continuing long-term expansion of low-oxygen conditions in the Eastern Gulf of Finland S. Stoicescu et al. https://doi.org/10.1016/j.oceano.2024.02.002
- Modelling the effects of benthic fauna on carbon, nitrogen and phosphorus dynamics in the Baltic Sea E. Ehrnsten et al. https://doi.org/10.5194/bg-19-3337-2022
- High-resolution characterization of the development and decay of seasonal hypoxia in the Gulf of Riga, Baltic Sea T. Liblik et al. https://doi.org/10.3389/fmars.2023.1119515
- Nutrients monitoring on the Bui multipurpose dam project in the Savannah region of Ghana J. Asomaning et al. https://doi.org/10.1016/j.enmm.2024.100960
- Modeling the pathways of microplastics in the Gulf of Finland, Baltic Sea – sensitivity of parametrizations E. Siht et al. https://doi.org/10.1007/s10236-024-01649-0
- Modeled surface salinity and satellite data as proxy for Secchi depth and watercolor of the Gulf of Riga D. Cepīte-Frišfelde et al. https://doi.org/10.1051/e3sconf/202343610001
- Anoxic water upwelling event in the central Baltic Sea T. Liblik https://doi.org/10.1016/j.rsma.2026.105323
- Large-scale atmospheric circulation and its impact on the Baltic Sea region: controls, predictability and consequences F. Börgel et al. https://doi.org/10.5194/esd-17-415-2026
Saved (final revised paper)
Latest update: 14 Aug 2026
Short summary
Coastal basins with high input of nutrients often suffer from oxygen deficiency. In summer 2018, the extent of oxygen depletion was exceptional in the Gulf of Riga. We analyzed observational data and found that extensive oxygen deficiency appeared since the water layer close to the seabed, where oxygen is consumed, was separated from the surface layer. The problem worsens if similar conditions restricting vertical transport of oxygen occur more frequently in the future.
Coastal basins with high input of nutrients often suffer from oxygen deficiency. In summer 2018,...
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