The general focus of my work is on the effect of variable marine environment on the physiology and behaviour of marine living organisms, in particularly phytoplankton. To investigate these bio-physical interactions I work with different numerical approaches, as well as in the field.     

Cell based nutrient uptake     

Under nutrient limited condition, the ability to acquire nutrients is important to determine the competitive advantage of marine microbes, auto- and heterotrophic alike. Nutrient limited growth is often described on a whole cell basis by a maximum rate and a half-saturation constant. An alternative approach to this empirical interpretation of the Michaelis-Menten parameters considers uptake sides at the cells surface. Using this formulation it is possible to derive trait-based descriptions of nutrient uptake dynamics which account for the underlying feedbacks and mechanisms stemming from cell physiology and physical constrains, such as diffusion limitation.

The effect of deep convection on phytoplankton dynamics and its relation to winter phytoplankton survival in the North Atlantic     

In the North Atlantic during winter deep convection has been suggested to counteract phytoplankton sinking and frequently return cells into the euphotic zone, thereby enabling phytoplankton survival in the highly turbulent deep mixed layer. For this concept, termed 'Phyto-convection', to work the cells ability to actively regulate buoyancy and to regulate metabolic rates (e.g. dark respiration) plays a crucial role in maintaining a viable population through the winter. To investigate this matter I am involved in work using different modelling approaches such as Individual-Based-Models and ecosystem models as well as static approaches employing stability analysis of Advection-Reaction-Diffusion-Equations (ARD).

I am also interested in the interface between observations, data and numerical model, and the integration of field work, laboratory experiments with numerical modelling.

Academic lecture

• Opdal, Anders Martin Frugård; Lindemann, Christian; Fiksen, Øyvind et al. (2024). Land use change and coastal water darkening drive synchronous dynamics in phytoplankton and fish phenology on centennial time scales. (external link)
• Lindemann, Christian; Aksnes, Dag Lorents (2020). Could long-term shift in cod phenology be linked to terrestrial greening and coastal darkening?. (external link)
• Opdal, Anders Martin Frugård; Lindemann, Christian; Fiksen, Øyvind et al. (2020). Could long term shift in cod phenology be linked to terrestrial greening and coastal browning. (external link)
• Lindemann, Christian; Jørgensen, Christian; Fiksen, Øyvind et al. (2020). Could long term shift in cod phenology be linked to terrestrial greening and coastal browning. (external link)
• Lindemann, Christian; Heuschele, Jan David (2018). From peers to public: Obstacles, benefits and impact of cross-methodological communication. (external link)

Academic article

• Opdal, Anders Martin Frugård; Lindemann, Christian; Andersen, Tom et al. (2024). Land use change and coastal water darkening drive synchronous dynamics in phytoplankton and fish phenology on centennial timescales. (external link)
• Opdal, Anders Martin Frugård; Wright, Peter J.; Blom, Geir et al. (2024). Spawning fish maintains trophic synchrony across time and space beyond thermal drivers. (external link)
• Aksnes, Dag Lorents; Løtvedt, Anita Stene; Lindemann, Christian et al. (2023). Effects of migrating mesopelagic fishes on the biological carbon pump. (external link)
• Opdal, Anders Martin Frugård; Andersen, Tom; Hessen, Dag Olav et al. (2023). Tracking freshwater browning and coastal water darkening from boreal forests to the Arctic Ocean. (external link)
• Lindemann, Christian (2022). Grigoratou et al. (2022) The Marine Biodiversity Observation Network Plankton Workshops: Plankton Ecosystem Function, Biodiversity, and Forecasting—Research Requirements and Applications. (external link)
• Acevedo-Trejos, Esteban; Cadier, Mathilde; Chakraborty, Subhendu et al. (2022). Modelling approaches for capturing plankton diversity (MODIV), their societal applications and data needs. (external link)
• Opdal, Anders Frugård; Lindemann, Christian; Aksnes, Dag Lorents (2019). Centennial decline in North Sea water clarity causes strong delay in phytoplankton bloom timing. (external link)
• Flynn, Kevin J.; Skibinski, David O F; Lindemann, Christian (2018). Effects of growth rate, cell size, motion, and elemental stoichiometry on nutrient transport kinetics. (external link)
• Heuschele, Jan David; Ekvall, Mikael T.; Mariani, Patrizio et al. (2017). On the missing link in ecology: improving communication between modellers and experimentalists. (external link)
• Lindemann, Christian; Visser, Adriaan; Mariani, Patrizio (2017). Dynamics of phytoplankton blooms in turbulent vortex cells. (external link)
• Giering, Sarah L.C.; Sanders, Richard J.; Martin, Adrian P. et al. (2016). High export via small particles before the onset of the North Atlantic spring bloom. (external link)
• Lindemann, Christian; Fiksen, Øyvind; Andersen, Ken Haste et al. (2016). Scaling laws in phytoplankton nutrient uptake affinity. (external link)
• Lindemann, Christian (2016). Andersen et al. (2016) Characteristic Sizes of Life in the Oceans, from Bacteria to Whales. (external link)
• Lindemann, Christian (2015). Martens et al. (2015) Size Structures Sensory Hierarchy in Ocean Life. (external link)
• Lindemann, Christian (2015). Lindemann et al. (2015) Physiological constrains on Sverdrup’s Critical Depth Hypothesis: The influences of dark respiration and sinking. (external link)
• Lindemann, Christian (2015). Große et al. (2015) The influence of winter convection on primary production: A parameterisation using a hydrostatic three-dimensional biogeochemical model. (external link)
• Lindemann, Christian (2014). Lindemann, St. John (2014) A seasonal diary of phytoplankton in the North Atlantic. (external link)
• Lindemann, Christian (2014). Holt et al. (2014) Challenges in integrative approaches to modelling the marine ecosystems of the North Atlantic: Physics to fish and coasts to ocean. (external link)

Lecture

• Opdal, Anders Martin Frugård; Lindemann, Christian; Fiksen, Øyvind et al. (2023). Land use change and coastal water darkening drive synchronous dynamics in phytoplankton and fish phenology on centennial time scales. (external link)

Poster

• Opdal, Anders Martin Frugård; Lindemann, Christian; Fiksen, Øyvind et al. (2023). Tracking freshwater browning and coastal water darkening from boreal forests to the Arctic Ocean. (external link)
• Opdal, Anders Martin Frugård; Andersen, Tom; Hessen, Dag Olav et al. (2023). Tracking freshwater browning and coastal water darkening from boreal forests to the Arctic Ocean. (external link)
• Opdal, Anders Martin Frugård; Wright, Peter James; Blom, Geir et al. (2023). Spawning fish maintain trophic synchrony across time and space beyond thermal drivers. (external link)
• Palacz, Artur; Grigoratou, Maria; Briggs, Nathan et al. (2023). Towards identifying biological data products for advancing modeling carbon sequestration in the Arctic Ocean. (external link)
• Lindemann, Christian; Fiksen, Øyvind; Menden-Deuer, Susanne et al. (2020). Training and Communication Across Disciplines and Methodological Approaches in Marine Science. (external link)

Interview

• Steinberg, Madeline; Lindemann, Christian (2023). Searching for a Climate Solution Hidden in Kelp. (external link)
• Steinberg, Madeline; Fiksen, Øyvind; Straube, Nicolas et al. (2023). The Hidden Sea Creatures in Norway's Fjords - On Mission. (external link)

Report

• Huse, Geir; Baussant, Thierry; Becker, Meike et al. (2023). The One Ocean Expedition: Science and Sailing for the Ocean We Want. (external link)

Editorial

• Lindemann, Christian; Aksnes, Dag Lorents; Flynn, Kevin J. et al. (2017). Editorial: Modeling the plankton-enhancing the integration of biological knowledge and mechanistic understanding. (external link)

See a complete overview of publications in Cristin.

• Acevedo-Trejos, E., M. Cadier, S. Chakraborty, B. Chen, S.Y. Cheung, M. Grigoratou, C. Guil, C. Hassenrück, O. Kerimoglu, T. Klauschies, C. Lindemann, A. Palacz, A. Ryabov, M. Scotti, S.L. Smith, S. Våge, F. Prowe. (2022) Modelling approaches for capturing plankton diversity (MODIV), their societal applications and data needs. Front. Mar. Sci. 9:975414.
• Grigoratou, M., Montes, E., Richardson, A.J., Everett, J.D., Acevedo-Trejos, E., Anderson, C., Chen, B., Guy-Haim, T., Hinners, J., Lindemann, C., Garcia, T.M., Möller, K.O., Monteiro, F.M., Neeley, A.R., O'Brien, T.D., Palacz, A.P., Poulton, A.J., Prowe, A.E.F., Rodríguez-Santiago, Á.E., Rousseaux, C.S., Runge, J., Saad, J.F., Santi, I., Stern, R., Soccodato, A., Våge, S., Vogt, M., Zervoudaki, S. and Muller-Karger, F.E. (2022), The Marine Biodiversity Observation Network Plankton Workshops: Plankton Ecosystem Function, Biodiversity, and Forecasting—Research Requirements and Applications. Limnology and Oceanography Bulletin, 31: 22-26.
• Opdal, A.F., Lindemann, C., Aksnes, D.L. (2019) Centennial decline in North Sea water clarity causes strong delay in phytoplankton bloom timing. Global Change Biology 25(11)
• Flynn, K.J., Skibinski, D.O.F., Lindemann, C.* (2018) Cell Size, Effects of Growth Rate, Cell Size, Motion, and Elemental Stoichiometry on Nutrient Transport Kinetics. PLoS Computational Biology 14(4): e1006118.
• Lindemann, C., Flynn, K.J., Menden-Deuer, S., Aksnes, D.L. (2017) Editorial: Modelling the plankton – enhancing the integration of biological knowledge and mechanistic understanding. Frontiers in Marine Science 4:358.
• Lindemann, C., Visser, A., Mariani, P. (2017) Numerical analyses of phytoplankton dynamics in turbulent structures. Journal of the Royal Society Interface 14: 20170453.
• Heuschele, J., Ekvall, M., Mariani, P., Lindemann, C. (2017) On the missing link in ecology: improving communication between modellers and experimentalists. Oikos. 126: 1071-1077. (Editor's choice)
• Giering, S.L.C., Sanders, R., Martin, A.P., Lindemann, C., Moeller, K., Daniels, C. J., Mayor, D. J., St. John M. A. (2016) High export via small particles before the onset of the North Atlantic spring bloom. Journal of Geophysical Research: Oceans 121, 6929-6945.
• Lindemann, C., Fiksen, Ø., Andersen, K.H., and Aksnes, D.L.* (2016) Scaling Laws in Phytoplankton Nutrient Uptake Affinity. Frontiers in Marine Science 3(26), 1-6.
• Andersen, K.H., T. Berge, R. J. Gonçalves, M. Hartvig, J. Heuschele, S. Hylander, N.S. Jacobsen, C. Lindemann, E.A. Martens, A.B. Neuheimer, K. Olsson, A. Palacz, F. Prowe, J. Sainmont, S.J. Traving, A.W. Visser, N. Wadhwa, T. Kiørboe. (2016) Characteristic sizes of life in the oceans, from bacteria to whales. Annual Review of Marine Science 8, 125.
• Martens, E.A., Wadhwa, N., Jacobsen, N.S., Lindemann, C., Andersen, K.H., and Visser, A. (2015) Size Structures Sensory Hierarchy in Ocean Life. Proceedings of the Royal Society B: Biological Sciences 282, 1815, 20151346.
• Lindemann, C., Backhaus, J.O., St. John, M.A. (2015) Physiological constrains on Sverdrup’s Critical Depth Hypothesis: The influences of dark respiration and sinking. ICES Journal of Marine Science 72(6), 1942-1951.
• Grosse, F., Lindemann, C., Pätch, J., Backhaus, J.O. (2015) The influence of winter convection on primary production: A parameterisation using a hydrostatic three-dimensional biogeochemical model. Journal of Marine Systems 147, 138-152.
• Lindemann, C., St. John, M.A. (2014) A seasonal diary of phytoplankton in the North Atlantic. Frontiers in Marine Science 1(37), 1-6.
• Holt, J., Allen, I.J., Anderson, T.R., Brewin, R., Butenschön, M., Harle, J., Huse, G., Lehodey, P., Lindemann, C., Memery, L., Salihoglu, B., Senina, I., Yool, A. (2014) Challenges in integrative approaches to modelling  he marine ecosystems of the North Atlantic: Physics to fish and coasts to ocean, Progress in  Oceanography 129, 285-313.