University of Helsinki, Tvärminne Zoological Station

University of Helsinki, Tvärminne Zoological Station

Short name: UH
Contact name: Joanna Norkko
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Partner Description

Tvärminne Zoological Station (TZS) of University of Helsinki is the site of the Tvärminne Mesocosm Facility (TMF) located by the brackish Baltic Sea,at the entrance to the Gulf of Finland. Established in 1902, TZS has a long history of experimental and field studies in marine biology and related areas. TZS is fully operational all year around. In addition to the station’s own research teams, TZS is annually visited by ca. 250 scientists from all over the world. TZS is part of the marine research infrastructure FINMARI (, which is coordinated by SYKE, and has been appointed to the Finnish roadmap for RI:s. TZS coordinates the Finnish node of EMBRC ( with an associated partnership.

Role and Commitment of key person(s)

Marko Reinikainen (m, PhD 1998) Director. Aquatic ecologist with broad experience in experimental studies in marine and fresh water environments.Co-leader of national marine RI consortium FINMARI. Google Scholar statistics: > 20 papers, > 700 citations, h-index 15. Project Role: Task Leader WP6.15: Provision of TA to UH: TMF, Contributor to WP9.2: Performing joint experiments on key scientific questions along major environmental and bio-geographical gradients; Contributor to WP5.

Joanna Norkko (f, PhD 2005). Aquatic ecologist with highly international research profile, focusing especially on the ecological effects of invasive species and on the role of benthic fauna as regulators of nutrient fluxes. Coordinates partnership of TZS in several ongoing international research consortia. Google Scholar statistics: > 40 papers, 1090 citations, h-index 18.Project Role: Contributor to WP6.15 and WP9.2.


University of Helsinki, Tvärminne Zoological Station
J.A. Palmenin tie 260