(Deutsche Version unten) Our cruise on the RV POSEIDON slowly comes to an end and today is the last day of sampling. My task during this cruise is sampling environmental DNA (eDNA). eDNA is defined as genetic material obtained directly from environmental samples, in our case water samples of different depths, without any obvious signs […]
(Deutsche Version unten) Finally, we have JAGO back on board the FS POSEIDON once again, and this time in an even warmer working area. We gladly left the gray winter in Kiel behind for this cruise. Every time we pull the yellow submersible out of the transport container on the deck of POSEIDON, it’s like […]
During our last days here in our working area we are shifting it into gear, because it is harvesting time! Finally we will have a look at our data coming back from the sea floor – we all have been waiting for this very moment since weeks now (and some of us since a few […]
In our last blog entries we have already reported on our gear and how difficult recovery can be at times. Today, we would like to share some of the daily working life of the scientists here on board with you. Marine geophysical surveys commonly require a large number of helping hands (and brains, of course). […]
(Deutsche Version unten) Between the 14 Feb and 1 March 2018 expedition POS520 with RV POSEIDON and the submersible JAGO takes place off the coast of the cape verde island Santo Antão. The chief scientist, the JAGO team and participants of the cruise write here as guest writers. Today Henk-Jan Hoving, GEOMAR, Deep Sea Biologist, […]
If you want to get an image of the Alps, you need seismometers surrounding the area. But how do you get the seismometers to work at the bottom of the sea? And how do you get them back? To explain this, we invite you to a virtual journey on board of the research vessel Maria […]
An expedition can never be fully planned in advance. At sea, everything can evolve differently every day, every hour. So was the case for this trip. The drifter, which was supposed to be followed until the 7th of February, left the upwelling patch and was heading at high speed to the south. As a result, […]
The week is starting onboard POSEIDON. Slowly the sun rises, immersing the sea for a brief moment in orange-red light. Eight o’clock. The work on the deck and in the laboratories is going on. The day begins with the measurement of the microstructure sonde, followed by the CTD. In addition to this station work, so-called […]
A focus of this trip is on the drifter, which tracks the course of an upwelled water patch of deep water. After we deployed the drifter on January 27, we followed it for several days. We also surveyed the area around the drifter by doing east-west and north-south sections, always returning to the drifter. On […]
Three times a day, water samples are taken on the R/V POSEIDON using the CTD rosette. CTD stands for conductivity, temperature, and depth, which is determined by measuring the pressure. CTD sampling provides a vertical profile of the water and brings water from different depths to the surface. The CTD rosette on board consists of […]