Exposed rocky shorelines – a grayling favourite

During a couple of sunny days in spring we had the opportunity to go out and learn more about one of the most iconic fish species of the Bothnian Bay - the grayling - and it's favourite habitat on the exposed, rocky shores. Together with our fish expert collegues we searched for grayling eggs along … Continue reading Exposed rocky shorelines – a grayling favourite

ZONATION – PLANNERS’ LITTLE HELPER

Zonation is a quantitative decision support tool for spatial conservation planning, developed for solving various problems around spatial management and resource allocation. Zonation was developed in CBIG – Conservation Biology Informatics Group in the department of Biosciences of the University of Helsinki. The team was led by the professor Atte Moilanen who is currently part … Continue reading ZONATION – PLANNERS’ LITTLE HELPER

Who lives at the bottom of the sea?

The deep sea floors are in constant darkness which means no plants can grow there. But that doesn't mean it's a place empty of life. During the autumn of 2018 SGU (the Geological Survey of Sweden) and partner in the SEAmBTOH project, conducted a survey cruise in the archipelago of Haparanda to map the depths … Continue reading Who lives at the bottom of the sea?

Unique habitats: Sandbanks

If you ever stand on a shallow sand deposit and try to determine, whether it’s a sandbank or not, you’re not the only one wondering about it. The EU habitats directive tells us that the Natura 2000 habitat 1110 sandbank is predominantly shallower than 20 m and is always covered by water, and it may … Continue reading Unique habitats: Sandbanks

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)

Identified as a significant marine area by UN convention

What does the northern Bothnian Bay have in common with for example the Sulu-Sulawesi Marine Ecoregion on the Indonesian archipelago? Not the corals, sharks or sea turtles but well enough the identification as EBSA areas (Ecologically or Biologically Significant Marine Areas). Or as stated on the EBSA website "special places in the world's oceans" (Photo … Continue reading Identified as a significant marine area by UN convention

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