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Andreas Bryhn

Andreas Bryhn


I am a scientist and director of studies at SLU Aqua. My activities relate to coastal water environments and are quite broad - for instance stock assessment of eel and herring, modelling, ecosystem-based management, ecosystem services and marine spatial planning. In 2009 I was awarded the Linnaeus Prize by the Royal Society of Science.


Supervision of thesis students 2004-

Land use and watershed management to reduce eutrophication, 2017

Aquatic environmental analysis, 2008, 2010, 2011.

Modelling of Aquatic Ecosystems, 2011.

Decision support systems, 2008.

Environmental Consequence Analysis, 2006, 2007

Distributed modelling with GIS (Geographical Information Systems), 2002, 2004, 2005, 2006.

Water Resources Management, 2004, 2005, 2006, 2009, 2010.

Aquatic Ecology, 2006.

Catchment Hydrology, 2006.

Limited tuition during various other courses.


Positions (selected)

Senior researcher, Swedish University of Agricultural Sciences, Dept of Aquatic Resources, 2012-

Assistant Professor, Uppsala University, Dept of Earth Sciences, 2008-2012

Postgraduate position, Uppsala University, Dept of Earth Sciences, 2004-2008 

Academic degrees and appointments:

Senior Lecturer in Earth Sciences, Uppsala University, 2011.
PhD, Environmental Analysis, Uppsala University, 2008.
MA, Economics, Uppsala University, 2007.
MSc, Environmental and Aquatic Engineering, Uppsala University, 2002.


Previous PhD students:

Peter Dimberg

Julia Hytteborn

Peng Yi

Dan Lindgren

Magnus Karlsso

Selected publications

Peer-reviewed research articles

33. Bryhn, A. C., Lundström, K., Johansson, A., Ragnarsson Stabo, H., Svedäng, H., 2017. A continuous involvement of stakeholders promotes the Ecosystem Approach to Fisheries in the 8-fjords area on the Swedish west coast. ICES Journal of Marine Science, 74: 431–442.

32. Bryhn, A. C., Dimberg, P. H., Bergström, L., Fredriksson, R. E., Mattila, J., Bergström, U., 2017. External nutrient loading from land, sea and atmosphere to all 656 Swedish coastal water bodies. Marine Pollution Bulletin, in press.

31. Dimberg, P. H., Bryhn, A. C., 2015. Predicting total nitrogen, total phosphorus, total organic carbon, dissolved oxygen and iron in deep waters of Swedish lakes. Environmental Modeling & Assessment, 20: 411–423.

30. Bryhn, A. C., Königson, S., Lunneryd, S.-G. and Bergenius, M. A. J., 2014. Green lamps as visual stimuli affect the catch efficiency of floating cod (Gadus morhua) pots in the Baltic Sea. Fisheries Research, 157: 187–192.

29. Bryhn, A. C., Andersson, J., Petersson, E., 2014. Mortality of European glass eel (Anguilla anguilla juveniles) at a nuclear power plant. International Review of Hydrobiology, 99: 312–316.

28. Dimberg, P. H. and Bryhn, A. C., 2014. Quantifying water retention time in non-tidal coastal waters using statistical and mass balance models. Water, Air, & Soil Pollution, 225: 2020.

27. Bryhn, A. C., Ragnarsson-Stabo, H. and Olsson, J., 2014. Modelling the biomass of functional groups of fish in an archipelago bay of the Baltic Sea. Ecological Modelling, in press.

26. Bryhn, A. C., Bergenius, M. A. J., Dimberg, P. H. and Adill, A., 2014. Biomass and number of fish impinged at a nuclear power plant by the Baltic Sea. Environmental Monitoring and Assessment, in press.

25. Dimberg, P. H. and Bryhn, A. C., 2014. Predicted effects from abatement action against eutrophication in two small bays of the Baltic Sea. Environmental Earth Sciences, in press.

24. Yi, P., Chen, X. G., Bao, D. X., Qian, R. Z., Aldahan, A., Possnert, G.,Bryhn, A. C., Gu, T. F., Hou, X. L., He, P., Yu, Z. B. and Wang, B., 2014. Model simulation of inflow water to the Baltic Sea based on 129I. Applied Radiation and Isotopes, in press.

23. Dimberg, P. H., Bryhn, A. C. and Hytteborn, J., 2013. Probabilities of monthly median chlorophyll-a concentrations in subarctic, temperate and subtropical lakes. Environmental Modelling & Software, 41: 199–209.

22. Yi, P., Possnert, G., Aldahan, A., Hou, X. L., Bryhn, A. C., and He, P., 2013. 129I in the Baltic Proper and Bothnian Sea: application for estimation of water exchange and environmental impact. Journal of Environmental Radioactivity, 120: 64–72.

21. Bryhn, A. C., 2012. Estimated trophic state effects and abatement costs in connection with improved urban sewage treatment in the Gulf of Riga. Journal of Environmental Engineering, 138: 663–672. Abstract . Postprint .

20. Dimberg, P. H., Hytteborn, J. and Bryhn, A. C., 2012. Predicting median monthly chlorophyll-a concentrations. Limnologica, 43: 169–176. Abstract

19. Bryhn, A. C. and Håkanson, L., 2011. Land uplift effects on the phosphorus cycle of the Baltic Sea. Environmental Earth Sciences, 62: 1761-1770 (link to abstract).

18. Bryhn, A. C. and Dimberg, P. H., 2011. An operational definition of a statistically meaningful trend. PLoS One, 6:  e19241. Link to the article.Popular science abstract.

17. Jiménez, A., Mateos, A., Bryhn, A. C., 2011. Selecting intervention strategies against eutrophication and the drastic decrease in bird abundance in Ringkøbing Fjord. TOP, 19: 448-463. Link to abstract.

16. Bryhn, A. C., 2010. Trends in total phosphorus loadings and concentrations regarding surface waters of the Baltic Sea, 1968-2007. The Open Oceanography Journal 4: 1-8 (Open Access journal, link to the complete article).

15. Bryhn, A. C., Girel, C., Paolini, G. and Jacquet, S., 2010. Predicting future effects from nutrient abatement and climate change on phosphorus concentrations in Lake Bourget, France. Ecological Modelling, 221: 1440-1450. Link to original version. Link to the Diva server which contains the study as a PDF file (preprint).

14. Bryhn, A. C., 2009. Sustainable phosphorus loadings from effective and cost-effective phosphorus management around the Baltic Sea. PLoS ONE, 4: e5417. (Open Access journal, link to the complete article).

13. Bryhn, A. C., 2009. A morphometrically based method for predicting water layer boundaries in meromictic lakes. Hydrobiologia 636: 413-419.Springer Publishers' version here. Self-archived preprint version here.

12. Bryhn, A. C., Jiménez, A., Mateos, A. and Ríos-Insua, S., 2009. Multi-attribute analysis of trophic state and waterfowl management in Ringkøbing Fjord, Denmark. Journal of Environmental Management, 90:2568-2577.Abstract.

11. Håkanson, L., Hytteborn, J. and Bryhn, A. C., 2009. A new general approach to quantify nitrogen fixation exemplified for the Baltic Proper. The Open Marine Biology Journal, 3: 36-48. Open Access journal, link to the complete article (pdf)

10. Håkanson, L., Bryhn, A. C., 2008. A dynamic mass-balance model for phosphorus in lakes with a focus on criteria for applicability and boundary conditions. Water, Air, & Soil Pollution, 187: 119-147. PDF

9. Håkanson, L. and A. C. Bryhn, 2008. Goals and remedial strategies for water quality and wildlife management in a coastal lagoon - a case-study of Ringkøbing Fjord, Denmark. Journal of Environmental Management, 86 :498-519. Abstract

8. Håkanson, L. and A. C. Bryhn, 2008. Modeling the foodweb in coastal areas: a case study of Ringkøbing Fjord, Denmark. Ecological Research, 23: 421-444. Abstract

7. Bryhn, A. C. and Håkanson, L., 2007.  A Comparison of Predictive Phosphorus Load-Concentration Models for Lakes. Ecosystems, 10: 1084-1099. Abstract Article in PDF

6. Bryhn, A. C. and T. Blenckner, 2007. Can nitrogen gas be deficient for nitrogen fixation in lakes? Ecological Modelling, 202: 362-372. Abstract

5. Bryhn, A. C., Hessen, D. O., and Blenckner, T., 2007. Predicting particulate pools of nitrogen, phosphorus and organic carbon in lakes. Aquatic Sciences, 69: 484-494. Abstract

4. Håkanson, L., Bryhn, A. C., and T. Blenckner, 2007. Operational Effect Variables and Functional Ecosystem Classifications - a Review on Empirical Models for Aquatic Systems along a Salinity Gradient. International Review of Hydrobiology, 92: 326-357. Abstract

3. Håkanson, L., Bryhn, A. C., and Hytteborn, J., 2007. On the issue of limiting nutrient and predictions of cyanobacteria in aquatic systems. Science of the Total Environment, 379: 89-108. Abstract, Preprint version. 

2. Håkanson, L., Bryhn, A. C. and Eklund, J. M., 2007. Modelling phosphorus and suspended particulate matter in Ringkøbing Fjord in order to understand regime shifts. Journal of Marine Systems,68: 65-90. Abstract

1. Håkanson, L., Blenckner, T., Bryhn, A. C. and S-S Hellström, 2005. The influence of calcium on the chlorophyll–phosphorus relationship and lake Secchi depths. Hydrobiologia 537: 111-123. Abstract

Books, book chapters and dissertations

Håkanson, L. and Bryhn, A. C., 2011. Controlling eutrophication in the Baltic Sea and the Kattegat. In: Ansari, A. A., et al. (eds.), Eutrophication: causes, consequences, control. Springer, Dordrecht, pp. 17-67.

Håkanson, L., Ragnarsson Stabo, H., Bryhn, A. C., 2010. The fish production potential of the Baltic Sea. Springer, Berlin/Heidelberg, 396 p (link to publisher).

Bryhn, A. C., Sessa, C., Håkanson, L., 2010. Costs, ecosystem benefits and policy implications of remedial measures to combat coastal eutrophication: a framework for analyses and a practical example related to the Gulf of Riga. In: Webber, C. D. (ed.), Eutrophication: Ecological Effects, Sources, Prevention and Reversal. Nova Publishers, Hauppage, pp. 103-134. (link)


Bryhn, A. C., 2008. Quantitative understanding and prediction of lake eutrophication. PhD Thesis, Department of Earth Sciences, Uppsala University.

Håkanson, L. and Bryhn, A. C., 2008. Eutrophication in the Baltic Sea – present situation, nutrient transport processes, remedial strategies. - Springer, Berlin/Heidelberg, 261 p. Link to the publisher.

Håkanson, L. and Bryhn, A. C., 2008. Tools and Criteria for Sustainable Coastal Ecosystem Management. Examples from the Baltic Sea and Other Aquatic Systems. Springer, Berlin, 292 p. Link to the publisher.


Other publications

Andersson, J., Bryhn, A. m. fl., 2016. Biologisk recipientkontroll vid
Oskarshamns kärnkraftverk. Aqua Reports 2016:6. SLU, Figeholm.

Andersson, J., Bryhn, A. m. fl., 2016. Biologisk recipientkontroll vid
Oskarshamns kärnkraftverk. Sammanfattande resultat av undersökningar fram
till år 2014. Aqua reports 2016:3. SLU, Figeholm.

Bryhn, A. m. fl., 2015. Ecosystem services from Swedish seas. Status och pressures. Rapport 2015:12. Havs- och vattenmyndigheten, Göteborg (in Swedish).

Bryhn, A. C., 2012. Fish losses in Swedish nuclear power plants. AQUA Reports 2012:10. Swedish University of Agricultural Sciences, Öregrund (in Swedish).

Bryhn, A. C., Veidemane, K., Håkanson, L., Stålnacke, P., Dimberg, P. H. and Nagothu, U. S., 2010. The Gulf of Riga case study content and process design report. Deliverable, AWARE programme (EC FP7), Uppsala University, Uppsala.

Bryhn, A. C. and Håkanson, L., 2009. Eutrophication: model before acting. Science 324: 723 (Letter to the Editor).

Stålnacke, P., Bryhn, A. C., Håkanson, L., Nagothu, U. S. and Veidemane, K., 2009. The Gulf of Riga case study. Inception report, AWARE programme (EC FP7). Bioforsk, Ås, 31 p.

Bryhn, A. C., Håkanson, L. and Eklund, J. M., 2008. Variabilities and uncertainties in important coastal water variables. Vatten, 2008-4: 259-272.Article

Bryhn, A. C. and Håkanson, L., 2008. Coastal eutrophication: whether N and/or P should be abated depends on the dynamic mass balance. PNAS, 106: E3 (Letter to the Editor).

Researcher at the Department of Aquatic Resources; Indikatorer och bedömningsgrunder
Telephone: 010-4784152
Postal address:
Kustlaboratoriet, Skolgatan 6
742 42 Öregrund
Visiting address: Skolgatan 6, Öregrund