The Tvärminne Zoological Station is a marine station that has been home to diverse and high-quality biological research since 1902.
The station offers an excellent setting and facilities for research into coastal ecosystems, providing researchers with laboratories, research vessels, sampling equipment and other infrastructure. Research focuses on the brackish coastal waters of the Gulf of Finland, as well as on evolutionary and population biology.
The Tvärminne Zoological Station is located near Hanko, at the mouth of the Gulf of Finland in the Baltic Sea. The station operates all year round and also offers a wide range of services to seminar and meeting organisers.
The station is one of the research infrastructures of Helsinki Institute of Life Science. The station is maintained by the Faculty of Biological and Environmental Sciences.