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
(in review) Jessen, H. H., Stenberg, P., & Brännström, Å. Compositional closure may improve causal inference. In review for Methods in Ecology and Evolution.
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
(Planned, accepted) 2027 Presenter - Southern eDNA Society Conference. Finding ecological interactions from historical airborne eDNA.
2026 Presenter - European Conference of Mathematical and Theoretical Biology. Compositional closure may improve causal inference.
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
Multidisciplinary project (mathematics/ecology), centered on extracting information from the worlds largest eDNA archive. I am using dynamical systems modelling, state space reconstruction and information theoretic methods to assess ecological connectivity from historic airborne eDNA samples.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.
Other employment
2018 Nature Guide at the Wadden Sea Centre (Denmark)
Leading guided tours and conducting teaching at a wide variety of levels, as well as development of teaching materials, and helping with odd tasks.2016 Communicator for the Danish Vegetarian Association (Denmark)
Preparing and hosting workshops on the connection between climate and consumption for classes in their 6th to 9th year of school.
IT Proficiencies
Contact
You can reach me through any of the links below.