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Carin Magnhagen

Carin Magnhagen


Professor in Fish biology since 1997


My area of research is fish biology, especially behaviour and ecology. Areas of interest are individual variation in behaviour, coping style, learning, social effects, response to predation risk, reproductive strategies and life history. I have worked with several fish species, in marine and freshwater environments, e.g. gobies, perch, Arctic charr.

Selected publications


Magnhagen, C., Johansson, K., Sigray, P. 2017. Effects of motorboat noise on foraging behaviour in Eurasian perch and roach: a field experiment. Marine Ecology Progress Series 564: 115–125

 Hellström, G., Heynen, M., Borcherding, J., Magnhagen, C. 2016. Individual consistency and context dependence in group-size preference of Eurasian perch. Behavioural Processes 133:6-11

Hellström, G., Magnhagen, C. 2016. Balancing past and present: how experience influences boldness over time in Eurasian perch. Current Zoology

Heynen, M., Borcherding, B., Bunnefeld, N., Magnhagen, C. 2016. Plasticity and consistency of behavioural responses to predation risk in laboratory environments. Journal of Zoology 300: 228–235

Brännäs, E., Backström, T., Nilsson, J., Carlberg, H., Stien, L. H. Magnhagen, C. 2016. Distinguishing Arctic charr with different stress coping styles by visual screening of spottiness – reliability and consistency over time. Journal of Zoology 300: 213–220

Backström, T. Johansson, K, Brännäs, E. Nilsson, J., Magnhagen, C. 2016. Short-term stress: effects on cortisol levels and carotenoid spots in Arctic char (Salvelinus alpinus) Canadian Journal of Zoology 94: 707–712

Nilsson, J., Backström T., Stien, L.H. , Carlberg, H., Jeuthe, H., Magnhagen, C., Brännäs, E., 2016. Effects of age and rearing environment on genetic parameters of growth and body weight and heritability of skin pigmentation in Arctic charr (Salvelinus alpinus L.) Aquaculture 453:67-72

Johansson K., Sigray P., Backström T., Magnhagen C., 2016. Stress response and habituation to motorboat noise in two coastal fish species in the Bothnian Sea. Advances in Experimental Medicine and Biology 875:513-521

Backström, T., Heynen, M., Brännäs, E., Nilsson, J., Magnhagen, C. 2015. Social stress effects on pigmentation and monoamines in Arctic charr. Behavioural Brain Research 291:103-107

Magnhagen, C., Backström, T., Øverli, Ø., Winberg, S. Nilsson, J., Vindas, M.A., Brännäs, E. 2015. Behavioural responses in a net restraint test predict interrenal reactivity in Arctic charr Salvelinus alpinus. Journal of Fish Biology 87: 88–99

Backström, T., Heynen, M., Brännäs, E., Nilsson, J., Magnhagen, C. 2015. The effect of anesthetics on carotenoid pigmentation and behavior in Arctic char. (Salvelinus alpinus). Journal of Veterinary Behavior 10:179-184.

Backström, T., Heynen, M., Brännäs, E., Nilsson, J., Magnhagen, C. 2015. Dominance and stress signalling of carotenoid pigmentation in Arctic charr (Salvelinus alpinus): Lateralization effects? Physiology & Behavior 138: 52-57.

Lundin, M., Calamnius, L., Lunneryd, S.-G., Magnhagen, C. 2015. The efficiency of selection grids in perch pontoon traps. Fisheries Research 162: 58–63.

Magnhagen, C., Wacker, S., Forsgren, E., Myhre L.C., Espy, E., Amundsen, T. 2014. Context consistency and seasonal variation in boldness of male two-spotted gobies. PloS ONE 9(3):e93354

Backström, T., Brännäs, E., Nilsson, J., Magnhagen, C. 2014. Behaviour, physiology and carotenoid pigmentation in Arctic charr Salvelinus alpinus. Journal of Fish Biology 84: 1-9.