Tvärminne Zoological Station (TZS) was established in 1902 and belongs to the Faculty of Biological and Environmental Sciences of the University of Helsinki (UH), which is the Finnish partner in ASSEMBLE Plus. TZS is located at the entrance to the Gulf of Finland in the Baltic Sea. It provides good background data for studying long-term environmental change. One of the weather stations of the Finnish Meteorological Institute is located at TZS. TZS serves as a centre for a variety of high-quality biological research, carries out environmental monitoring, and offers facilities for visiting scientists, field courses and seminars. Marine research at TZS focuses on the biodiversity and functioning of the Baltic Sea ecosystem and the anthropogenic stressors affecting the system. The research covers ecology, ecophysiology, ecotoxicology, taxonomy, and behavioural and evolutionary biology.
- Baltic Sea ecosystems (brackish water ecosystems characterised by vast archipelagos with high habitat complexity)