Searching for Macroplea pubipennis

The mysterious aquatic leaf beetle Macroplea pubipennis has become quite familiar to us these last two summers. Not a lot is known about these beetles. Two years ago, we didn’t even know they existed in Sweden and they were known to occur only in Finland and China (of all places). As observation sites in the … Continue reading Searching for Macroplea pubipennis

Modeling of potential habitats for Fourleaf mare’s tail

One of the aims of the project is combining the data from Sweden and Finland and seeing what we can glean from the full data. One thing you notice very quickly from a full dataset is an absence of a species from one country, when it is present in the other. Especially if it’s a … Continue reading Modeling of potential habitats for Fourleaf mare’s tail

We have it, you don’t

The nature in the northern Bothnian Bay in the SEAmBOTH area is in many ways similar on the Swedish and on the Finnish side. Sure, the Finnish side is more flat and the shores do not slope as fast as on the Swedish side, but both have large river estuaries, many lagoons and bays, with … Continue reading We have it, you don’t

Braun’s stonewort (Chara braunii)

The northern Bothnian Bay is shared by Finland and Sweden, and in many ways the sea is the same. In other ways, differences occur in underwater nature between both sides of the border, although this border only is a human concept and does not affect marine life. One thing that has puzzled our colleagues on … Continue reading Braun’s stonewort (Chara braunii)

Nuttall’s waterweed – an invasive species

Waterweeds (Elodea spp.) are species of aquatic plants that originate in North America. Now, because of human interference, two different waterweed species are spreading globally, causing havoc as they outcompete local flora. Canadian waterweed, Elodea canadensis, is no new acquaintance here, as this species was first found in both Finland and Sweden in the 1870s. … Continue reading Nuttall’s waterweed – an invasive species

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