10 days ago our research ship Ocean Surveyor left our previous project on a bank in the middle of the Baltic sea where we have been surveying geology and habitats since early summer. After a three-day transit we arrived to the northern most outpost of the Swedish marine waters, Haparanda in the Bothnian Bay. This … Continue reading SGU finally arriving at the scene for our first week of field work!
Rather quite shallow, especially around the archipelago of Haparanda and Torneå. In shallow waters like this, at a maximum depth of around one meter, the perfoliate pondweed (Potamogeton perfoliatus) and pond water-crowfoot (Ranunculus peltatus) reach up to the surface and create patches, sometimes impenetrable. We usually keep a look out for rocks whilst driving the … Continue reading Field stories: The sea is not always deep…
We've been making some new friends during our recent snorkel inventories. Sometimes they have even been giving us a manicure. Curiously they checked whether we were edible, nibbling on our skin. The fish are mainly juveniles of different species. A common one is for example roach (Rutilus rutilus). Photo by Kajsa Johansson, County Administrative Board … Continue reading Making new friends
Most of the time our surveys of vegetation in the Bothnian Bay are planned, forseeable and follow a systematic routine. But some things you can only stumble upon, such as finding the sheated pondweed (Stuckenia vaginata). The sheathed pondweed grows mainly in deeper areas but reaches its stem up to the surface. It is therefore … Continue reading Stumbling upon the sheated pondweed
Spring is a truly busy time in the sea. When the ice cover melts in the Bothnian Bay it's time for the fish to spawn and lay their eggs in the shallow bays, creeks and lakes. The eggs can teach us a lot about the importance of coastal habitats and the lives of fish. Where do … Continue reading Springtime means eggtime
It was just one of those days. Those days when you can just say, "Oh, Monday". I informed our Metsähallitus marine team that our life vests have arrived to one store in Oulu and I will pick them up early on Monday morning and then we will make the last safety checkup on our boat … Continue reading Field stories: Oh, Monday…
The first year of the SEAmBOTH project is coming to an end. While the days are getting colder and the ice starts covering the waters of Bothnian Bay, we’re looking back at the field surveys of 2017 and reminiscing warm, sunny days out at sea (maybe not all the time). SUP-board and aquascope comes in … Continue reading Flashbacks to the summer and field surveys of 2017