The sorting and sampling of fish larvae is one of the main tasks on our research cruises. Every year we cover a specific grid of 45 stations in the Bornholm Basin and since last year we also sample 35 stations on a grid in the western Baltic Sea. On each of these stations, sampling consists […]
Sampling the dark hours
Time at sea is limited and thus precious and there is so much to be done on a scientific cruise. To get the best possible snapshot of life in the Baltic Sea during our 12-day journey, we therefore try to sample as many locations as we can along the way to increase the resolution of […]
AL592 now posting from the Baltic Sea!
Hello from Bornholm Basin in the central Baltic Sea! With a team of 12 scientists and 11 permanent crew, we are currently operating in Baltic waters with research vessel Alkor to improve understanding of this beautiful but also heavily impacted and rapidly changing system. For this purpose, we measure physical and chemical parameters (temperature, salinity […]
Power of the plankton pt. 2
Today scientific cruise party member Elvita is going to take you even deeper into the world of plankton (aka “the diverse collection of organisms in the water column that are unable to propel themselves against a current”). Here is what she writes: While we were all excited about finding an early cod larva in our […]
Power of the plankton pt.1
Today scientific crew member Anton is going to introduce you to the importance and fascination of larval fishes in the Baltic Sea. Here is his blog entry: Most of the fish species in the Baltic Sea spawn in spring. This is the time when life starts to bloom not only on land but also in […]
AL553 and AL556 – the Baltic integrative time series continues after a one-year Corona gap!
After a one year, Corona-induced break, our integrative time series to assess long-term changes in Baltic Sea pelagic ecosystems finally continues, now running in its 35th year. It feels great to be back at sea after a two-year break and long preparations, overshadowed by the question whether we could really embark this time. In March […]
Work while others are sleeping
Living and working on board the RV Alkor provides many opportunities to collect valuable data that helps us to understand what is happening in the Baltic Sea. Working as efficiently as possible during the limited time we have at sea means that we also have to work at night time – when all others are […]
Land, ho! Kalmar!
After the fair amount of work on the board and sampling the exciting marine organisms, Alkor brought us safely to Kalmar in Sweden, where two of our scientific crew left and two new participants joined us. For me, as a first-time-on-board-attendee, the arrival at the harbor was a great experience. All our scientific crew went […]
Fish talk!
One important goal of our long-term data series and of the present cruise is to increase the understanding of the feeding ecology, reproduction and population structure of key Baltic fish species. Why is Baltic cod getting thinner? How are herring and sprat competing for zooplankton? How are the two genotypes of cod in the Baltic, […]
First weekly report online!
Time flies out at sea. Benefiting from perfect, calm and sunny weather, we have now already completed hydrographic measurements and fish and plankton sampling in Kiel Bight, Mecklenburg Bight, Arkona Basin, Gdansk Deep and Gotland Basin. For a first summary of work completed till now, check out our first weekly report, now online (in German), […]