Andreas Ekström

Andreas Ekström is a post-doctoral fellow at the University of Gothenburg, Sweden, and his collaboration with FECPL is funded by the Swedish research council (VR). Andreas´s research interests and experience are within the fields of comparative and cardiovascular physiology with a particular emphasis on eco-physiological research questions. His research mainly focus on studying the relationship between cardiovascular performances and cardiac oxygen supply in fish in vivo, and the ability of fish to perform challenging tasks (e.g., swimming) whilst exposed to environmental stressors e.g., warming and hypoxia.

Andreas research project within the group revolves around studying the importance of the coronary circulation, which perfuses the fish heart with oxygenated blood directly from the gills, for cardiorespiratory function and scope, swimming performance, warming tolerance and migratory capacity and reproductive fitness in Pacific salmon. Andreas is supervised by Dr. Steven Cooke and Dr. Erika Eliason (UCSB), and will be collaborating with Will Twardeck at CU, Dr. Scott Hinch and Dr. Tony Farrell at UBC and Dr. David Patterson (DFO).


Ph.D., Biology, University of Gothenburg, Sweden

Thesis title: Thermal tolerance in teleost fish – Importance of cardiac oxygen supply, ATP production and autonomic control,

Supervisor: Dr. Erik Sandblom


M.Sc., Molecular Genetics and Physiology, Linköping University, Linköping, Sweden

Thesis title: “Indications of metabolic and morphological adaptations in the Ornate tinamou, Nothoprocta ornata.”

Supervisor: Dr. Jordi Altimiras, IFM Biology, Linköping University, Sweden


B.Sc., Biology, Linköping University, Linköping, Sweden

Thesis title: Effects of the NO donors Sodium Nitroprusside and S-nitrosoglutathione on oxygen consumption and embryonic organ growth in the domestic broiler chicken, Gallus gallus domesticus.

Supervisor: Dr. Jordi Altimiras, IFM Biology, Linköping University, Sweden

Lab Publications (5)

  • Ekström, A., B. Hendriks, J.C. Van Wert, M.J.H. Gilbert, A.P. Farrell, S.J. Cooke, D.A. Patterson, S.G. Hinch and E.J. Eliason.  In Press.  Impairing cardiac oxygen supply in swimming coho salmon compromises their heart function and tolerance to acute warming.  Scientific Reports.  00:000-000.

  • Comparative Biochemistry and Physiology Cover Image

    Jeanson, A.L., J.C. Madden, A. Ekström, A.J. Danylchuk, N. Young, A. Howarth, W.M. Twardek, R.G. Twibell, R.P. Root, K.C. Hanson and S.J. Cooke. 2023. Bioenergetic consequences of repeated catch-and-release fisheries interactions on adult steelhead across a range of ecologically relevant water temperatures. Comparative Biochemistry and Physiology, Part A. 284:111469.

  • Van Wert, J.C., B. Hendriks, A. Ekström, D.A. Patterson, S.J. Cooke, S.G. Hinch and E.J. Eliason.  2023.  Population variability in thermal performance of pre-spawning adult Chinook salmon.  Conservation Physiology.  11:coad022.

  • Comparative Biochemistry and Physiology Cover Image

    Ekström, A., T.S. Prystay, A.E.I. Abrams, A. Carbajal Brossa, P.E. Holder, A.J. Zolderdo, E. Sandblom and S.J. Cooke. 2022. Impairment of branchial and coronary blood flow reduces reproductive fitness, but not cardiac performance in paternal smallmouth bass (Micropterus dolomieu). Comparative Biochemistry and Physiology A. 267:111165.

  • Philosophical Transactions of the Royal Society Cover Image

    Twardek, W.M., Ekström, A., Eliason, E.J., Lennox, R.J., Tuononen, E., Abrams, A., Jeanson, A.L., and Cooke, S.J. 2021.  Field assessments of heart rate dynamics during spawning migration of wild and hatchery reared chinook salmon.  Philosophical Transactions of the Royal Society of London. 376: 20200214.