Tvärminne Zoological Station is a marine station located at the entrance to the Gulf of Finland. It serves as a centre for a large variety of high quality biological research and offers facilities for field courses and seminars. TZS is open all year round and we welcome visiting scientists to conduct their research at TZS.

Tvärminne news and general information

Tvärminne research

@Tvarminne

In an aquatic plant meadow of the northern Baltic Sea, the species composition of plants can change metre by metre.… twitter.com/i/web/status/1…

We still have so much to learn about the sea! For example, it turns out that there are two, not one, species of flo… twitter.com/i/web/status/1…

The total count of eider ducklings in the Tvärminne area this year - 156 ducklings. This is three times as many as… twitter.com/i/web/status/1…

Hypoxia (oxygen deficiency) is one of the major problems affecting coastal ecosystems worldwide and the Baltic Sea… twitter.com/i/web/status/1…