General information and contact

General information and contact information for Tvärminne Zoological Station (TZS).

Open 9 am - 15 pm on weekdays


J.A. Palménin tie 260
10900 HANKO

Tel: +358 (0)2941 28090

Email: tvarminne-zool (at)

General sauna (for those staying at the station)

Wednesdays: gentlemen 18:00 - 20:00, ladies 20:00 - 22:00

Saturdays: ladies 18:00 - 20:00, gentlemen 20:00 - 22:00

Restaurant opening times

Weekdays: breakfast 8:00 - 9:00, lunch 11:30 - 13:00, dinner 17:00 - 18:00

NB! Dinner is available only upon pre-booking, please ask for more information at the reception.

Weekends: Available for groups upon pre-booking, please ask for more information at the reception.


Director and professor

The joint director for the bioloigcal stations at Tvärminne, Lammi and Kilpisjärvi is Jouni Heiskanen. The local director of TZS is Joanna Norkko and the scientific leader of TZS and professor of Baltic Sea research is Alf Norkko.

Laboratory facilities and services

Jaana Koistinen is the Laboratory Chief at TZS. She is responsible for laboratory facilities, equipment and services.

Aquaria, nature reserve, field work permits

Research Coordinators Laura Kauppi and Joanna Norkko are responsible for aquarium facilities, climate rooms, the nature reserve, and permits for field work. 

Boats, diving, equipment, microscopes

Boats, boat permits, diving, sampling and other equipment are administered by the technicians at TZS.

Contact senior technician and chief of the R/V Augusta Göran Lundberg regarding boats and manufacturing of equipment.

Contact research technician Jostein Solbakken regarding boats and sampling equipment.

Contact research coordinator Laura Kauppi regarding microscopes and sampling equipment.

Contact the coordinator for the Finnish Scientific Diving Academy Edward Stockdale regarding diving at Tvärminne.

Group and seminar bookings

Service coordinator Mariella Holstein-Myllyoja is responsible for seminar bookings.

Science educator Ilse Klockars is responsible for school groups etc.

Kitchen, cleaning, maintenance
  • Maintenance, Tapio Rautalin: +358 (0)29 412 8113
  • Cleaning, Kaisu Koskenmäki +358 (0)50 318 5056
  • Cleaning, Kanyanat Kärkkäinen, +358 (0)50 479 0710
Resident researchers

Magnus Lindström, Researcher,, +358 (0)40 841 5052


Doctoral Researchers