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UBA-Eutro:
The Baltic Sea Action Plan - Modelling of Water Quality Indicators

Duration:
01.10.2020 - 30.09.2023
Project manager:
Prof. Dr. habil. Gerald Schernewski
Funding:
UBA - Umweltbundesamt
Researchfocus:
Focus 4: Coastal seas and society
Partner:
none

Model simulations with the spatio-temporal highly resolved 3D ecosystem model ERGOM-MOM are utilized to evaluate existing nutrient reduction targets for the western Baltic Sea (BSAP/MSFD); assess if further reductions are necessary; analyse if existing reduction targets waters allow additional aquaculture and if yes, where and to what extent; analyse the influence of the Oder river plume on the eutrophication assessments of the Bornholm basin and assess the spatial extent, duration and variability of hypoxic areas within the western Baltic Sea. Based on the results, an approach to integrate model simulations and field data into a new spatio-temporal resolved monitoring and reporting system for the indicators nutrients, chlorophyll-a and oxygen depletion is developed. 

Publikationen

  • Schaub, I., R. Friedland and M. L. Zettler (2024). Good-Moderate boundary setting for the environmental status assessment of the macrozoobenthos communities with the Benthic Quality Index (BQI) in the south-western Baltic Sea. Mar. Poll. Bull. 201: 116150, doi: 10.1016/j.marpolbul.2024.116150
  • Arlinghaus, R., R. Friedland, P. Roser, D. Niessner, W.-C. Lewin, M. Dorow and L. Westphal (2023). Menschgemachte und natürliche Umweltveränderungen an den Bodden. In: Boddenhecht – Ökologie, Nutzung und Schutz von Hechten in den Küstengewässern Mecklenburg-Vorpommerns. Berlin: Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB) im Forschungsverbund Berlin e. V. (Berichte des IGB): 68-97, doi: 10.4126/FRL01-006453300
  • Friedland, R., C. Vock and S. Piehl (2023). Estimation of hypoxic areas in the western Baltic Sea with geostatistical models. Water 15: 3235, doi: 10.3390/w15183235
  • Schernewski, G., R. Friedland, S. Paysen, M. Bucas, S. Dahlke and M. von Weber (2023). Macrophytes and water quality in a large Baltic lagoon: relevance, development and restoration perspectives. Front. Mar. Sci. 10: 1049181, doi: 10.3389/fmars.2023.1049181
  • van Leeuwen, S. M., H.-J. Lenhart, T. C. Prins, A. Blauw, X. Desmit, L. Fernand, R. Friedland, O. Kerimoglu, G. Lacroix, A. van der Linden, A. Lefebvre, J. van der Molen, M. Plus, I. Ruvalcaba Baroni, T. Silva, C. Stegert, T. A. Troost and L. Vilmin (2023). Deriving pre-eutrophic conditions from an ensemble model approach for the North-West European seas. Front. Mar. Sci. 10: 1129951, doi: 10.3389/fmars.2023.1129951
  • Arlinghaus, R., T. Rittweg, F. Dhellemmes, D. Koemle, R. van Gemert, H. Schubert, D. Niessner, S. Möller, J. Droll, R. Friedland, W.-C. Lewin, M. Dorow, L. Westphal, E. Ehrlich, H. V. Strehlow, M. S. Weltersbach, P. Roser, M. Braun, F. Feldhege and H. Winkler (2023). A synthesis of a coastal northern pike (Esox lucius) fishery and its social-ecological environment in the southern Baltic Sea: Implications for the management of mixed commercial-recreational fisheries. Fish. Res. 263: 106663, doi: 10.1016/j.fishres.2023.106663
  • ICES (2021). Working Group on Integrative, Physical-biological and Ecosystem Modelling (WGIPEM). ICES Scientific Reports 3: 62, doi: 10.17895/ices.pub.8231
  • Intersessional Correspondence Group on Eutrophication Modelling, H. Lenhart, A. Blauw, X. Desmit, L. Fernand, R. Friedland, B. Heyden, O. Kerimoglu, G. Lacroix, A. van der Linden, J. van der Molen, M. Plus, T. Prins, I. Ruvalcaba Baroni, T. Silva, C. Stegert, D. Thewes, T. Troost, L. Vilmin and S. van Leeuwen (2022). ICG-EMO report on model comparison for historical scenarios as basis to derive new threshold values. Publication Number: 895/2022. OSPAR Commission. 170 S., https://www.ospar.org/documents?v=48846
  • Piehl, S., R. Friedland, B. Heyden, W. Leujak, T. Neumann and G. Schernewski (2022). Seasonal oxygen deficiency as an indicator for coastal water quality in the western Baltic Sea. In: 16th International Conference Littoral22 Book of Abstracts. Ed. by J. C. Ferreira, M. Ferreira, C. Jóia Santos and C. Macedo Duarte. Caparica,  Portugal: NOVA School of Science and Technology | FCT NOVA: 302-304, 978-972- 99923-6-0
  • Piehl, S., R. Friedland, B. Heyden, W. Leujak, T. Neumann and G. Schernewski (2023). Modeling of water quality indicators in the western Baltic Sea: Seasonal oxygen deficiency. Environ. Model. Assess. 28: 429-446, doi: 10.1007/s10666-022-09866-x
  • van Denderen, P. D., A. Törnroos, M. Sciberras, H. Hinz, R. Friedland, R. Lasota, M. C. Mangano, C. Robertson, S. Valanko and J. G. Hiddink (2022). Effects of bottom trawling and hypoxia on benthic invertebrate communities. Mar. Ecol. Prog. Ser. 694: 13-27, doi: 10.3354/meps14094
  • Pärn, O., R. Friedland, J. Rjazin and A. Stips (2022). Regime shift in sea-ice characteristics and impact on the spring bloom in the Baltic Sea. Oceanologia 64: 312-326, doi: 10.1016/j.oceano.2021.12.004
  • Lenhart, H., A. Blauw, X. Desmit, L. Fernand, R. Friedland, B. Heyden, O. Kerimoglu, G. Lacroix, A. van der Linden, J. van der Molen, M. Plus, T. Prins, I. S. Ruvalcaba Baroni, T., C. Stegert, D. Thewes, T. Troost, L. Vilmin and S. van Leeuwen (2021). ICG-EMO report on model comparison for historical scenarios as basis to derive new threshold values. OSPAR Convention for the Protection of the Marine Environment of the North-East Atlantic Intersessional Correspondence Group for Eutrophication Modelling (ICG-EMO). 69 S.
  • Friedland R, Piehl S, Schernewski G, Neumann T: Proposal of a methodology for setting new threshold values for Pomeranian Bay and Bornholm Basin HELCOM meeting document IN-EUTROPHICATION 21-2021 Code: 4-2 Category: DEC Agenda Item: 4– Splitting assessment units Submission date: 18.8.2021 Submitted by: Germany Reference: Friedland et al. (in prep.)
  • Piehl S, Friedland R, Neumann T, Schernewski G: Supporting the HELCOM shallow-water oxygen indicator with modelling products for the Western Baltic Sea HELCOM meeting document - IN-EUTROPHICATION 21-2021 Code: 2-1 Category: DEC Agenda Item: 2– Shallow water oxygen indicator Submission date: 16.8.2021 Submitted by: Germany
  • Grizzetti, B., O. Vigiak, A. Udias, A. Aloe, M. Zanni, F. Bouraoui, A. Pistocchi, C. Dorati, R. Friedland, A. De Roo, C. Benitez Sanz, A. Leip and M. Bielza (2021). How EU policies could reduce nutrient pollution in European inland and coastal waters. Global Environmental Change 69: 102281, doi: 10.1016/j.gloenvcha.2021.102281
  • Stegert, C., H. J. Lenhart, A. Blauw, R. Friedland, W. Leujak, O. Kerimoglu, C. Stegert, H.-J. Lenhart, A. Blauw, R. Friedland, W. Leujak and O. Kerimoglu (2021). Evaluating uncertainties in reconstructing the pre-eutrophic state of the north sea. Front. Mar. Sci. 8: 637483, doi: 10.3389/fmars.2021.637483