Date of birth: 310884

Nationality: Finland



Åbo Akademi University, 2010-2015

PhD, Environmental and Marine Biology (Accepted with honors)

Åbo Akademi University, 2003-2009

Master of Science, Environmental and Marine Biology (Eximia)


Work experience

Academy of Finland postdoc, September 2019-

Åbo Akademi University/Environmental and Marine Biology/The Sea

Postdoc, December 2018-August 2019

Åbo Akademi University/Environmental and Marine Biology/The Sea

Research doctor, December 2017-November 2018

Åbo Akademi University/Environmental and Marine Biology

Project researcher, October 2017-November 2017

HELCOM, Baltic Marine Environment Protection Commission, Helsinki

Postdoc, October 2015-September 2017

KTH/Royal Institute of Technology, Stockholm

PhD candidate, February 2010-September 2015

Åbo Akademi University, Finnish Environment Institute

Course assistant, August 2009

Responsible for teaching in marine environments during the course ”Akvatisk biotop- och artkännedom” Research assistant, October 2007

Project FAME (Factors Modifying Eutrophication responses in hard bottom communities). Microscopical analyses of Norwegian benthosfauna.

Course assistant, August-Septmeber 2007

Responsible for teaching in lake environments during the course ”Akvatisk biotop- och artkännedom” Research assistant, July 2007

PhD Tore Lindholms’ research project about occurrence and effects of the toxic dinoflagellate Alexandrium ostenfeldii in Föglö, Åland. Field sampling, water analyses and microscopical analyses.

Trainee, August 2006

Trainee at Husö Biological Station in Åland Islands. Water analyses, analyses of fauna and field sampling.



Swedish (mother tongue)

Finnish (fluent)

English (fluent)


Other activities

Participation in the Mentor Programme within the Graduate Research School in Genomic Ecology (GENECO) at Lund University, 2012-2014. Certificate.




Wampach L, Heintz-Buschart A, Fritz JV, Ramiro-Garcia J, Habier J, Herold M, Narayanasamy S, Kaysen A, Hogan AH, Bindl L, Bottu J, Halder R, Sjöqvist C, May P, Andersson AF, de Beaufort C, Wilmes P. (2018) Birth mode determines earliest strain-conferred gut microbiome functions and immunostimulatory potential. Nature Communications.

Rinne H, Björkman U, Sjöqvist C, Salovius-Laurén S, Mattila J. (2018) Morphological and genetic variation of Fucus in the eastern Gulf of Bothnia, northern Baltic Sea. European Journal of Phycology, 53:369-380.

Sefbom J, Kremp A, Rengefors K, Jonsson PR, Sjöqvist C, Godhe A. (2018) A planktonic diatom displays genetic structure over small spatial scales. Environmental Microbiology.

Sjöqvist, C. & Kremp, A. (2016) Genetic diversity affects ecological performance and stress response of marine diatom populations. ISME J.


Bunse, C., Bertos-Fortis, M., Sassenhagen, I., Sildever, S., Sjöqvist, C., Godhe, A., Gross, S., Kremp, A., Lips, I., Lundholm, N., Rengefors, K., Sefbom, J., Pinhassi, J. & Legrand, C. (2016) Spatio-temporal interdependence of bacteria and phytoplankton during a Baltic Sea spring bloom. Frontiers in Microbiology.


Lindholm, T. Lindqvist, C. & Sjöqvist, C (2016). Occurrence and activity of slime nets, Labyrinthula sp. among aquatic plants in cold and oligohaline Baltic Sea waters. Ann. Bot. Fennici, 53:139-143. 


Godhe, A., Sjöqvist, C.,  Sildever, S., Sefbom, J., Harðardottir, S., Bertos, M., Bunse, C., Gross, S., Johansson, E., Jonsson, P., Khandan, S., Legrand, C., Lips, I., Lundholm, N., Rengefors, K., Sassenhagen, I., Suikkanen, S., Sundqvist, L. & Kremp, A (2016). Physical barriers and environmental selection cause spatial and temporal genetic differentiation of an extensive algal bloom. Journal of Biogeography.


Sjöqvist, C., Godhe, A., Jonsson, P., Sundqvist, L. & Kremp, A (2015). Local adaptation and oceanographic connectivity patterns explain genetic differentiation of a marine diatom across the North Sea- Baltic Sea salinity gradient. Accepted. Molecular Ecology.


Sjöqvist, C., Kremp, A., Lindehoff, E., Båmstedt, U., Egardt, J., Gross, S., Jönsson, M., Larsson, H., Pohnert, G. Richter, H., Selander, E. & Godhe, A., 2014. Effects of grazer presence on genetic structure of a phenotypically diverse diatom population. Microbial Ecology. 67: 83-95.


Scheinin, M., Sjöqvist, C. & Mattila, J., 2012. Microalgal plankton composition  in shallow coastal inlets in contrasting trophic and alternative community states. Hydrobiologia. 30: 1-19.


Sjöqvist, C. & Lindholm, T., 2011. Natural co-occurrence of Dinophysis acuminata (Dinoflagellata) and Mesodinium rubrum (Ciliophora) in thin layers in a coastal inlet. Journal of Eukaryotic Microbiology. 58: 365-372.


Scientific presentations


Oral presentation at Joint Aquatic Science Meeting (JASM) in Portland, USA, May 2014. Sjöqvist, C.; Godhe, A.; Jonsson, P.; Kremp, A.; "Oceanographic and ecological drivers of genetic diversity and differentiation of a marine diatom species along the Baltic Sea salinity gradient".


Oral presentation of PhD-project at the 10th International Phycological Society Congress in Orlando, USA, August 2013. Sjöqvist, C; Godhe, A; Kremp, A. "Genetic Structure and Diversity among Populations of Skeletonema marinoi (Bacillariophyta) in the Baltic Sea".


Oral presentation of Master thesis at the 7th Baltic Sea Science Congress in Tallinn 2009. Sjöqvist, C; Lindholm, T; "Diurnal vertical migration of the photosynthetic marine ciliate Myrionecta rubra in semi-meromictic coastal inlets in Åland, SW Finland".



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