The Baltic Sea harbours a unique compostition of species and landscapes. An estimated 100 species of fish, 450 species of macroalgae, 1000 zoobenthos species, 3000 plankton species and many thousands of unknown species of bacteria and viruses create the unique underwater biodiversity of the Baltic Sea.
Photo: Metsähallitus NHS/Mats Westerbom
HELCOM strives to achieve the Baltic Sea Action Plan target:
Favourable status of Baltic Sea biodiversity.
Biodiversity Objectives and Actions in the Baltic Sea Action Plan
Fish and fisheries
Marine protected areas
Species and habitats