Sukella Itämeren pinnan alle / Dyk ner under ytan i Östersjön
Discussions about ongoing research at Tvärminne Zoological Station at Tiedekulma, 4.6.2019
The decline of flounders in the Gulf of Finland was caused by the near disappearance of one species – which wasn’t supposed to be there
Dynamics of fish stocks can be more complex than what they seem due to mixed populations of undiscovered species. Sometimes such cryptic species...