Informationen zur Darstellung dieser Seite in älteren Browsern
Logo der Universität Hamburg
Department Biologie ZMAW


Prof. Dr. Christian Möllmann


Phone: +49(0)40 - 42838 6621
Fax:     +49(0)40 - 42838 6618

University of Hamburg
Institute for Hydrobiology and Fisheries Science 
Große Elbstraße 133
22767 Hamburg 

Citizenship: German

Birth date: 24.11.1967 


Research interests

My research focuses on direct and indirect effects of climate-induced variability and change as well as fisheries on the structure and function of marine foodwebs. I am especially interested in the dynamics and interactions of fish and zooplankton populations. Within this field I conduct studies on the effect of trends in physics and zooplankton on recruitment and growth of marine fish populations, and the occurrence and causes of ecosystem reorganizations such as regime shifts and trophic cascades in marine ecosystems. My present research combines statistical analyses of long-term data series, field-based process studies, and modelling techniques. The ultimate goal of my work is the integration of environmental processes into an ecosystem-based management of marine resources.

Educational Background

University education

1989-1990: Training in Basic Biology, University of Giessen.

1990-1996: Training in Biology with focus on Fisheries Biology, Marine Zoology and Physical Oceanography, University of Kiel.

1996: Diploma (equiv. M.Sc.). Institute of Marine Sciences, University of Kiel. Thesis topic: “Consumption of zooplankton by the populations of herring and sprat in the Central Baltic Sea.” Supervisors: Profs. D. Schnack and H. Rosenthal, Institute of Marine Sciences, University of Kiel.

2002: Dr. rer. nat. (equiv. Ph.D.). Institute of Marine Sciences, University of Kiel. Thesis topic: “The influence of hydrography and predation by herring (Clupea harengus) and sprat (Sprattus sprattus) on mesozooplankton long-term dynamics in the Central Baltic Sea”. Supervisors: Profs. D. Schnack and J. Lenz, Institute of Marine Sciences, University of Kiel.


1996–2003: Project Scientist at the Institute of Marine Sciences, University of Kiel.

2003-2004: Project Scientist at the Danish Institute for Fisheries Research, Charlottenlund, Denmark.

2004-2006: Research Scientist at the Danish Institute for Fisheries Research, Charlottenlund, Denmark.

2006: Senior Scientist at the Danish Institute for Fisheries Research, Charlottenlund, Denmark

July 2006- April 2008: Senior Scientist at the Institute of Hydrobiology and Fishery Science, University of Hamburg, Germany

since May 2008: Professor at the Institute for Hydrobiology and Fishery Science, University of Hamburg, Germany

Recent Projects

BONUS ERA-NET Project: INSPIRE – "INtegrating SPatIal pRocesses into Ecosystem models for sustainable utilization of fish resources"

BMELV-funded Research project: UFO – „Entwicklung eines nicht-invasiven, akustisch-optischen Unterwasser-Fisch-Observatoriums“.

EU-funded Research project: EURO-BASIN – „European Union Basin-scale Analysis, Synthesis and Integration” (

BMBF-funded Research project: GENUS II – „Geochemistry and Ecology of the Namibian Upwelling System" (

EU-funded Research project: MYFISH – "Maximising yield of fisheries while balancing ecosystem, economic and social concern" (

German Research Foundation – University of Hamburg’s cluster of excellence: CLISAP "Integrated Climate System Analysis and Prediction" (

EU-funded Research project: FACTS – „Forage fish interactions” ( )

BONUS ERA-NET Project: AMBER – "Assessment and Modelling of Baltic Ecosystem Response" (

MarinERA-Net Project: ECODRIVE – „Ecosystem Change in the North Sea: Processes, Drivers, Future Scenarios (

EU-funded Research Project: UNCOVER – „Understanding the Mechanisms of stock recovery” (

EU-funded Research project: RECLAIM – „REsolving CLimAtic IMpacts on fish stocks” (


Recent Publications


Research articles (peer-reviewed)

Gårdmark A, Lindegren M, Neuenfeldt S, Blenckner T, Heikinheimo O, Müller-Karulis B, Niiranen S, Tomczak MT, Aro E, Wikström A, Möllmann C. 2013. Biological ensemble modeling to evaluate potential futures of living marine resources. Ecological Applications, 23: 742-754.

Möller KO, St.John M, Temming A, Floeter J, Sell AF, Herrmann JP, Möllmann C. 2012. Marine snow, zooplankton and thin layers: indications of a trophic link from small-scale sampling with the Video Plankton Recorder. Marine Ecology Progress Series, 468: 57-59.

Casini M, Blenckner T, Möllmann C., Gårdmark A, Lindegren M, Llope M, Kornilovs G, Plikshs M, Stenseth NC. 2012. Predator transitory spillover induces trophic cascades in ecological sinks. Proceedings of the National Academy of Sciences, USA, 109: 8185-8189.

Lindegren M, Dakos V, Gröger JP, Gårdmark A, Kornilovs G, Otto S, Möllmann C. 2012. Early detection of ecosystem regime shifts: a multiple method evaluation for management application. PlosONE 7:e38410

Günther GC, Temming A, Baumann H, Huwer B, Möllmann C, Clemmesen C, Herrmann JP. 2012. A novel length back-calculation approach accounting for ontogenetic changes in the fish length – otolith size relationship during the early life of sprat (Sprattus sprattus). Canadian Journal of Fisheries and Aquatic Science, 69: 1214-1229.

Möllmann, C., Diekmann, R. 2012. Marine ecosystem regime shifts induced by climate and overfishing – a review for the Northern hemisphere. Advances in Ecological Research, 47: 303-347.

Jacob U, Thierry A, Brose U, Arntz WE, Berg S, Brey T, Fetzer I, Jonsson T, Mintenbeck K, Möllmann C, Petchey OL, Riede JO, Dunne JA. 2011. The Role of Body Size in complex Food Webs. Advances in Ecological Research, 45: 181-223.

Möllmann C, Blenckner T, Casini M, Gårdmark A, Lindegren M. 2011. Beauty is in the eye of the beholder: management of Baltic cod stock requires an ecosystem approach. Marine Ecology Progress Series, 431: 293–297.

Möllmann C, Conversi A, Edwards M 2011. Comparative analysis of European wide marine ecosystem shifts: a large-scale approach for developing the basis for ecosystem-based management. Biology Letters, 7: 484-486.

Casini M, Kornilovs G, Cardinale M, Möllmann C, Grygiel W, Jonsson P, Raid T, Flinkman J, Feldman V. 2011. Spatial and temporal density dependence regulates the condition of central Baltic Sea clupeids: compelling evidence using an extensive international acoustic survey. Population Ecology, 53: 511-523.

Gårdmark A, Nielsen A, Floeter J, Möllmann C. 2011. Depleted marine fish stocks and ecosystem-based management: on the road to recovery, we need to be precautionary. ICES Journal of Marine Science, 68:212-220.

Lankov A, Ojaveer H, Simm M, Pollupüü M, Möllmann C. 2010. Feeding ecology of pelagic fish species in the Gulf of Riga (Baltic Sea): the importance of changes in the zooplankton community. Journal of Fish Biology, 77: 2268-2284.

Lindegren M, Möllmann C, Hansson L. 2010. Biomanipulation: a tool in marine ecosystem management and restoration? Ecological Applications, 20: 2237-2248.

Bailey KM, Ciannelli L, Hunsicker M, Rindorf A, Neuenfeldt S, Möllmann C, Guichard F, Huse G. 2010. Comparative analysis of marine ecosystems: workshop on predator -prey interactions. Biology Letters, 6: 579-581.

Shin YJ, Shannon LJ, Bundy A, Coll M, Aydin K, Bez N, Blanchard JL, de Fatima Borges M, Diallo I, Diaz E, Heymans JJ, Hill L, Johannesen E, Jouffre D, Kifani S, Labrosse P, Link JS, Mackinson S, Masski H, Möllmann C, Neira S, Ojaveer H, Mohammed Abdallahi K, Perry I, Thiao D, Ymane, D., Cury, P.M 2010. Using indicators for evaluating, and communicating the ecological status of exploited marine ecosystems. 2. Setting the scene. ICES Journal of Marine Science, 67: 692-716

Österblom H, Gårdmark A, Bergström L, Müller-Karulis B, Folke C, Lindegren M, Casini M, Olsson P, Diekmann R, Blenckner T, Humborg C, Möllmann C. 2010. Making the ecosystem approach operational - Can regime shifts in ecological- and governance systems facilitate the transition? Marine Policy, 34: 1290-1299

Lindegren M, Diekmann R, and Möllmann C. 2010. Regime shifts, resilience and recovery of a cod stock. Marine Ecology Progress Series, 402: 239–253.

Lindegren M, Möllmann C, Nielsen A, Brander K, MacKenzie BR, Stenseth NC. 2010. Ecological forecasting under climate change: the case of Baltic cod. Proceedings of the Royal Socielty B – Biological Sciences, 277: 2121-2130.

Lindegren M, Möllmann C, Nielsen A, Stenseth NC. 2009. Preventing the Collapse of the Baltic Cod Stock through an Ecosystem-based Management approach. Proceedings of the National Academy of Sciences, USA, 106: 14722-14727.

Cardinale M, Möllmann C, Bartolino V, Casini M, Kornilovs G, Raid T, Margonski P, Grzyb A, Raitaniemi J, Gröhsler T, Flinkman J. 2009. Effect of environmental variability and spawner characteristics on the recruitment of Baltic herring (Clupea harengus membras) populations. Marine Ecology Progress Series, 388: 221-234.

Perry IR, Cury P, Brander K, Jennings S, Möllmann C, Planque B. 2009 Sensitivity of marine systems to climate and human exploitation – concepts and issues. Journal of Marine Systems, 79: 427-435.

Rijnsdorp AD, Peck MA, Engelhard GH, Möllmann C, Pinnegar JK. 2009. Resolving the effect of climate change on fish populations. ICES Journal of Marine Science, 66: 1570-1583.

Möllmann C, Diekmann R, Müller-Karulis B, Kornilovs G, Plikshs M, Axe P. 2009. Reorganization of a large marine ecosystem due to atmospheric and anthropogenic pressure: a discontinuous regime shift in the Central Baltic Sea. Global Change Biology, 15: 1377–1393.

Kraus G., Pelletier D., Dubreuil J., Möllmann C., Hinrichsen H.-H., Bastardie F., Vermard, Y. and Mahevas S. 2008. A model-based evaluation of Marine Protected Areas as fishery management tool for a stock facing strong environmental variability - the example of Eastern Baltic cod (Gadus morhua callarias L.). ICES Journal of Marine Science, 66: 109-121.

Andersen, K.H., Möllmann, C. and Köster, F.W. 2008. Process-based model for direct and indirect effects of hydrographic conditions on Central Baltic cod (Gadus morhua) egg mortality. Fisheries Oceanography, 17: 84-88.

Möllmann, C., Müller-Karulis, B., Kornilovs, G. and St. John, M.A. 2008. Effects of climate and overfishing on zooplankton dynamics and ecosystem structure regime shifts, trophic cascade and feedback loops in a simple ecosystem. ICES J Mar Sci. 66: 109-121.

Støttrup, J.G., Overton, J.L., Paulsen, H.E., Möllmann, C., Tomkiewicz, J., Pedersen, P.B., Lauesen, P. 2008. Restocking the Eastern Baltic cod. Reviews in Fisheries Science, 16: 58 - 64.

Contributions to books

Diekmann, R., Otto, S. and Möllmann, C. 2012. Towards Integrated Ecosystem Assessments (IEAs) of the Baltic Sea: Investigating Ecosystem State and Historical Development. IN: CLIMATE IMPACTS ON THE BALTIC SEA: FROM SCIENCE TO POLICY Springer Earth System Sciences, 2012, 161-199, DOI: 10.1007/978-3-642-25728-5_6

Casini, M., Möllmann, C. and Österblom, H. 2011. Food-web and climated-related dynamics in the Baltic Sea: present and potential future applications in fish stock assessment and management In: Ecosystem-based managment for marine fishreis; Eds. Belgrano, M. and Fowler, C.W. Cambridge University Press. 2011

Harris, R.P., Buckley, L.J., Campbell, R., Chiba, S., Costa, D., Dickey, T.D., Irigoien, X., Kiorboe, T., Möllmann, C., Ohman, M., Runge, J., Saiz, E. and Wiebe, P.H. 2010. Dynamics of marine ecosystems: observation and experimentation. In: Marine Ecosystems and Global Change, Eds. Barange, M., Field, J.G., Harris, R.P., Hofmann, E.E., Perry, R.I. and Werner, F. Oxford University Press.

Dippner, J.W., Vuorinen, I., Daunys, D., Flinkman, J., Halkka, A., Köster, F.W., Lehikoinen, E., MacKenzie, B.R., Möllmann, C., Møhlenberg, F., Olenin, S., Schiedek, D., Skov, H., Wasmund, N. (2008) Climate-related Marine Ecosystem Change. in: The BACC Author Team (Eds) Assessment of Climate Change for the Baltic Sea Basin. Chapter 5. Springer Verlag, 2008.

Hammer C., von Dorrien C., Ernst P., Gröhsler T., Köster F.W., MacKenzie B.R., Möllmann C., Wegner G. and Zimmermann C. Fish Stock Development under Hydrographic and Hydrochemical Aspects, the History of Baltic Sea Fisheries and its Management. In: State and Evolution of the Baltic Sea 1952 – 2005; Eds. Feistel, R., Nausch, G. and Wasmund, N.; Wiley, 2008.

van der Lingen C.D., Bertrand A., Bode A., Brodeur R., Cubillos L., Espinoza P., Friedland K., Garrido S., Irigoien X., Miller T., Möllmann C., Rodriguez-Sanchez R., Tanaka A. and Temming A. Trophic dynamics of small pelagic fish. In: Climate Change and Small Pelagic Fish. Eds. Checkley, D., Roy, C., Alheit, J. and Oozeki, Y. Cambridge University Press, 2009.


Selected Oral & Poster Presentations

Scripps Institution of Oceanography: „ Cod and Copepod – Two of a kind?“ (Invited). , La Jolla, California, 01.05.2013.

2nd ICES/PICES/IOC Symposium on „Effects of Climate Change on the World´s Oceans: „Climate and anthropogenic effects on structure and functioning of the North Sea ecosystem“. Yeosu, Korea, 15.05.2012.

2nd ICES/PICES/IOC Symposium on „Effects of Climate Change on the World´s Oceans: „Multi-level oscillating trophodynamic control causes regime shifts in large marine ecosystem“. Yeosu, Korea, 18.05.2012.

4th International SIZEMIC Workshop „Changing Climate, Physiological Adaptation, Ecosystem Resilience & Body Size Constraints": „Large‐scale Reorganizations in North Atlantic Marine Ecosystems“ (Invited). Hamburg, Germany, 13.04.2011.

NAFO Scientific Council and its Standing Committees meeting: „Towards the ecosystem approach – using ecosystem process knowledge in Eastern Baltic cod (Gadus morhua callarias L.) stock assessment“ (Invited). Braunschweig, Germany, 04.06.2011.

European Parliament Directorate General for Iinternal Policies; Policy Department B: Structural and Cohesion Policies; Fisheries. Workshop on „Regime Shifts in Marine Ecosystems: How Overfishing can Provoke Sudden Ecosystem Changes“: „Ecosystem Regime Shifts triggered by Overfishing“ (Invited). Brussels, Belgium, 20.12.2011.

Coastal and Estuarine Research Federation – Estuaries and Coasts in a Changing World: „Reorganization of Central Baltic Sea foodweb structure and function due to multiple external stressors“ (Invited). Portland, Oregon, 03.11.2009.

3rd GLOBEC Open Science Meeting – Marine ecosystems: from function to prediction: „Climate-induced synchronous Regime Shifts along environmental and diversity gradients in Baltic Sea sub-systems“. Victoria, B.C., Canada, 25.06.2009.


Seiteninfo: Impressum | Browserinfo | Letzte Aktualisierung am 11. Juni 2013 durch IHF
Blättern: SeitenanfangZur vorangehenden SeiteZur nächsten Seite