My research focuses on molecular stress responses and population genetics in aquatic life. In addition, I am interested in the interactions between host organisms and their associated microbiomes and their use in non-invasive health- and ecosystem monitoring.

https://www.researchgate.net/profile/Raphael-Koll-2

https://www.linkedin.com/in/raphael-t-koll-a008b636b

Ph.D. (2021 – 2025), University Hamburg,

Projekt: “Molecular stress responses in estuarine fish” as part of the Research Training Group on "Biota-mediated effects on carbon cycling in estuaries”

2018 European Scientific Diver (ESD) certified by the German Research Diving Commission (KFT)

M.Sc. (2016 - 2019), University Rostock,

Thesis at the Leibniz Institute for Farm Animal Biology: “Molecular analyzes to elucidate the function of the adipose fin in selected salmonids”

B.Sc. (2012 - 2016), University Cologne,

Thesis at the Leibniz Institute for the Analysis of Biodiversity Change: “Analysis of variation in traits of morphological shape among riverine Telmatherina bonti”

2020 – 2025 PhD Candidate "Biota-mediated effects on carbon cycling in estuaries" RTG2530.

2020 – 2021, Research Associate, Leibniz Institute for Farm Animal Biology (FBN) – Rostock, Germany

EMFF short project: “Molecular preliminary study on adipose fin function in salmonids in aquaculture”

Theilen, J., Storz, S., Amieva-Mau, S., Dohr, J., Hauten, E., Koll, R., ... & Thiel, R. (2025). Inter-and Intra-Estuarine Comparison of the Feeding Ecology of Keystone Fish Species in the Elbe and Odra Estuaries. Fishes, 10(4), 161. https://doi.org/10.3390/fishes10040161

Theilen, J., Sarrazin, V., Hauten, E., Koll, R., Möllmann, C., Fabrizius, A., & Thiel, R. (2025). Environmental factors shaping fish fauna structure in a temperate mesotidal estuary: Periodic insights from the Elbe estuary across four decades. Estuarine, Coastal and Shelf Science, 318, 109208. https://doi.org/10.1016/j.ecss.2025.109208

Koll, R., Hauten, E., Theilen, J., Bang, C., Bouchard, M., Thiel, R., ... & Fabrizius, A. (2024). Spatio-temporal plasticity of gill microbiota in estuarine fish. Science of the Total Environment, 957, 177505. https://doi.org/10.1016/j.scitotenv.2024.177505

Koll, R., Theilen, J., Hauten, E., Woodhouse, J. N., Thiel, R., Möllmann, C., & Fabrizius, A. (2024). Network-based integration of omics, physiological and environmental data in real-world Elbe estuarine Zander. Science of The Total Environment, 942, 173656. https://doi.org/10.1016/j.scitotenv.2024.173656

Koll, R., Brunner, R. M., Rebl, A., Verleih, M., Hadlich, F., Martorell-Ribera, J., & Goldammer, T. (2025). Resection of the adipose fin from rainbow trout acutely alters the cerebral transcriptome and respiratory frequency. Aquaculture, 594, 741472. https://doi.org/10.1016/j.aquaculture.2024.741472

Koll, R., Martorell Ribera, J., Brunner, R. M., Rebl, A., & Goldammer, T. (2019). Gene profiling in the adipose fin of salmonid fishes supports its function as a flow sensor. Genes, 11(1), 21. https://doi.org/10.3390/genes11010021

Ribera, J. M., Nipkow, M., Viergutz, T., Brunner, R. M., Bochert, R., Koll, R., ... & Rebl, A. (2020). Early response of salmonid head-kidney cells to stress hormones and toll-like receptor ligands. Fish & Shellfish Immunology, 98, 950-961. https://doi.org/10.1016/j.fsi.2019.11.058