Ecologist | Modeller | Ocean enthusiast

Henrik H. Jessen

Using quantitative methods to understand and predict natural systems.

I am a Danish biologist, specialized in aquatic ecosystems. In the course of my work, I developed an interest in quantitative methods, particularly mechanistic modelling, which I am now looking to apply to a wider range of natural data.

In my free time I also dabble in photography. If you'd like to see a selection of my photographs, please visit my portfolio website

Publications

  • Jessen, H. H., Opdal, A. F., & Enberg, K. (2025). Increasing temperatures counteract the evolutionary consequences of fishing in model of Northeast Arctic Cod (Gadus morhua). Scientific Reports 15, 30039.

  • Koeck, B., Olsen, E. M., Závorka, L., Crespel, A., Freitas, C., Enberg, K., Jessen, H. H., ... & Killen, S. S. (2024). Conservation benefits of marine reserves depend on knowledge integration of genotypic and phenotypic diversity. Biological Conservation, 299, 110831.

  • Jessen, H. H., Opdal, A. F., & Enberg, K. (2023). Life-history evolution in response to foraging risk, modelled for Northeast Arctic cod (Gadus morhua). Ecological Modelling, 482, 110378.

  • Jessen, H. H., Mgana, H. F., Grønkjær, P., & Lauridsen, T. L. (2019). Dietary differences among commercially important fishes in Lake Tanganyika assessed using stable isotope analysis. Journal of Great Lakes Research, 45(6), 1205-1214.

Communication

  • 2023     Poster - Effects of Climate Change on the Worlds Oceans. Evolution of Northeast Arctic cod (Gadus morhua) in response to concurrent fisheries and climate stressors.

  • 2022     Presenter - European Society for Evolutionary Biology. Life-history evolution in response to foraging risk, modelled for Northeast Arctic Cod (Gadus morhua).

  • 2022     Presenter - European Meeting of PhD Students in Evolutionary Biology. Interactions of fisheries and climate stressors and their consequences for evolution of Atlantic Cod (Gadus morhua).

  • 2021     Keynote speaker - World Fisheries Congress 2021. Evolutionary responses of Atlantic cod (Gadus morhua) to concurrent fisheries and climate stressors.

  • 2019     Participant - FAO International Symposium on Fisheries Sustainability: Strengthening the Science-Policy Nexus.

Research background

  • Post-doc at Umeå University
    Using Empirical Dynamic Modelling to discover interactions in the worlds largest eDNA dataset.

  • PhD at the University of Bergen
    Individual based modelling of eco-evolutionary processes, teaching, supervision, and supplemental courses in pedagogy, communication, ethics and sustainable development policy.

  • MSC in Biology at Aarhus University
    Specialized in aquatic ecology. Included 3 months of interdisciplinary fieldwork in western Tanzania, working with stakeholder and managers to secure sustainable fishing in Lake Tanganyika.

  • BSC in Biology at Aarhus University
    General biology, including supplementary courses within multivariate analysis, GIS, chemistry and physics.

IT Proficiencies