Special species: Vaucheria

Filamentous algae are those thin fussy-looking, sometimes slimy, algae may find growing on hard substrates where they cover rocks and stones.Some of them though grow on soft bottoms. Examples of these algae that specialize in growing on soft sediments are species of the genus Vaucheria. Vaucheria are yellow-green algae that grow long, tube formed and … Continue reading Special species: Vaucheria

Special Species: Indicators

Indicator species means a species which tells something important about its environment or the environmental conditions where it thrives. Bladder wrack Fucus vesiculosus deteriorates in turbid water and the plants move towards the surface to catch more light, blue mussels need at least 4-5 per mill salinity to survive, and Vaucheria sp filamentous algae grow … Continue reading Special Species: Indicators

Special species: The Baltic water-plantain, Alisma wahlenbergii

It may be the most iconic plant species for the northern Bothnian Bay, but only few people have ever seen it. The Baltic water-plantain only exists in areas within the Baltic sea, it is listed as vulnerable (VU) on the international IUCN red list of threatened species and is listed as a priority species on … Continue reading Special species: The Baltic water-plantain, Alisma wahlenbergii

Special species: Fourleaf mare’s tail (Hippuris tetraphylla)

Fourleaf mare’s tail is an interesting plant species. Although it’s distribution is circumpolar (around the world), at the same time it’s very spotty. You can find it here and there in small populations but for one reason or another, it’s missing from the areas between the populations. It prefers brackish water and very shallow depth … Continue reading Special species: Fourleaf mare’s tail (Hippuris tetraphylla)