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Prof. Dr. Christian Möllmann Mail: christian.moellmann~AT~uni-hamburg.de Phone: +49(0)40 - 42838 6621
Citizenship: German
Birth date: 24.11.1967
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Research interestsMy 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. |
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Educational Background |
University education1989-1990: 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. Employment1996–2003: 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 |
| EU-funded Research project: EURO-BASIN – „European Union Basin-scale Analysis, Synthesis and Integration” (www.euro-basin.eu)
BMBF-funded Research project: GENUS II – „Geochemistry and Ecology of the Namibian Upwelling System" (www.genus.zmaw.de) EU-funded Research project: FACTS – „Forage fish interactions” (www.facts-project.eu ) EU-funded Research project: MYFISH – Maximising yield of fisheries while balancing ecosystem, economic and social concern. EU-funded Marie Curie Early Stage Training Network: METAOCEANS – „Elucidating the structure and functioning of marine ecosystems through synthesis and comparative analysis” EU-funded Research Project: UNCOVER – „Understanding the Mechanisms of stock recovery” (www.uncover.eu) EU-funded Research project: RECLAIM – „REsolving CLimAtic IMpacts on fish stocks” (www.climateandfish.eu) BONUS ERA-NET Project: AMBER – „Assessment and Modelling of Baltic Ecosystem Response“ (www.io-warnemuende.de/amber.html) MarinERA-Net Project: ECODRIVE – „Ecosystem Change in the North Sea: Processes, Drivers, Future Scenarios (www.marinera.net) |
Recent Publications
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Michele Casini, Thorsten Blenckner, Christian Möllmann, Anna Gårdmark, Martin Lindegren, Marcos Llope, Georgs Kornilovs, Maris Plikshs, Nils Christian Stenseth. 2012.
Lindegren,M., Dakos, V., Gröger, J.P., Gårdmark, A., Kornilovs, G., Otto, S. and Möllmann, C. 2012. Early detection of ecosystem regime shifts: a multiple method evaluation for management application. PlosONE 7 Claudia C. Günther, Axel Temming, Hannes Baumann, Bastian Huwer, Christian Möllmann, Catriona Clemmesen, Jens-Peter Herrmann. 2012.
Möllmann, C., Diekmann, R. 2012. Marine ecosystem regime shifts induced by climate and overfishing – a review for the Northern hemisphere. Advances in Ecological Research, in press. Jacob, U., Thierry, A., Brose, U., Arntz, W.E., Berg, S., Brey, T., Fetzer, I., Jonsson, T., Mintenbeck, K., Möllmann, C., Petchey, O.L., Riede, J.O., Dunne, J.A. 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. and 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. and 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, K.M., Ciannelli, L., Hunsicker, M., Rindorf, A., Neuenfeldt, S., Möllmann, C., Guichard, F. and Huse, G. (2010). Comparative analysis of marine ecosystems: workshop on predator -prey interactions. Biol. Lett. 2010 6, 579-581. Shin, Y.-J., Shannon, L.J., Bundy, A., Coll, M., Aydin, K., Bez, N., Blanchard, J.L., de Fatima Borges, M., Diallo, I., Diaz, E., Heymans, J.J., Hill, L., Johannesen, E., Jouffre, D., Kifani, S., Labrosse, P., Link, J.S., Mackinson, S., Masski, H., Möllmann, C., Neira, S., Ojaveer, H., ould Mohammed Abdallahi, K., Perry, I., Thiao, D., Yemane, 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., Gardmark, 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 regimeshifts 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; doi: 10.3354/meps08454
Lindegren M., Möllmann C., Nielsen A., Brander K., MacKenzie B.R. and Stenseth N.C. 2010. Ecological forecasting under climate change: the case of Baltic cod. Proceedings of the Royal Socielty B - Biological Sciences; 277: 2121-2130 doi:10.1098/rspb.2010.0353 Lindegren M., Möllmann C., Nielsen, A. and Stenseth N.C. 2009. Preventing the Collapse of the Baltic Cod Stock through an Ecosystem-based Management approach. Proceedings of the National Academy of Sciences of the United States of America, Vol.106 (34): 14722-14727.
Cardinale M., Möllmann C., Bartolino V., Casini M., Kornilovs G., Raid T., Margonski P., Grzyb A., Raitaniemi J., Gröhsler T. and Flinkman J. 2009. Effect of environmental variability and spawner characteristics on the recruitment of Baltic herring (Clupea harengus membras) populations. Marine Ecology Progress Series, Vol. 388: 221-234. Perry I.R., Cury P., Brander K., Jennings S., Möllmann C. and Planque B. 2009 Sensitivity of marine systems to climate and human exploitation – concepts and issues. Journal of Marine Systems, 79: 427-435 Rijnsdorp A. D., Peck M. A., Engelhard G. H., Möllmann C., and Pinnegar, J. K. 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. and 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. |
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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 |
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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, Belgiu, 20.12.2011. Baltic Sea Science Congress - "From external forcing to internal responses - Acclimation and regulation cascades". "Climate-induced Ecosystem Regime-shifts in the Baltic Sea" (Extended Plenary Lecture). Rostock, Germany, 21.03.2007 4th International Zooplankton production Symposium: “Direct and indirect effects of climate on the zooplankton community of the Central Baltic Sea”. Hiroshima, Japan, 29.05.2007. 4th International Zooplankton production Symposium: “Indirect effects of climate- and overfishing- induced zooplankton changes on ecosystem structure – Regime shifts, trophic cascades and feedback loops in a simple ecosystem”. Hiroshima, Japan, 01.06.2007. Centre for Ecological and Evolutionary Synthesis (CEES), University of Olso. “Climate and ecosystem change in the Baltic Sea - implications for fish stock recruitment”. Oslo, Norway, 08.03.2008. International Symposium on Effects of Climate Change on the World´s Ocean: “Ecosystem consequences of decadal changes in energy and carbon flows due to climate-induced changes in Baltic zooplankton“. Gijon, Spain, 22.05.2008.
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.
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