Hello, my name is Chris Galley, and I’m a geophysics PhD student from Canada assisting with the collection and processing of the ship’s acoustic-based imaging data, and mapping. These acoustic methods all measure some feature of the water column, seafloor, or sub-seafloor by releasing pressure waves (sound pings) and then studying the waves upon their […]
Anthropogenic greenhouse gas emissions such as carbon dioxide (CO2) are causing climate change, global warming, and ocean acidification. Microscopic plants called phytoplankton, living in the surface oceans, sequester 50% of global CO2 and supply >50% of new nitrogen used for primary production. Other than light and major nutrients, phytoplankton growth is strongly influenced by availability […]
While the GAME teams of this year are still collecting data about the influence of artificial lighting at night (ALAN) on benthic grazers such as sea urchins and snails, it has now been decided that ALAN will also be the GAME research subject in 2022 and 2023. These projects will be funded by the Klaus […]
It is the fourth day since we arrived at our research location in the middle of the Atlantic: The Rainbow Plume. The Multicorer, or short “MUC” just arrived its final destination at 2300m water depth. Now the wire that holds the MUC tightens again and the winch slowly starts pulling the device back on board. […]
Our moody Princess and her co-worker (the gas tank) are already working very hard every day to get those dissolved inorganic carbon measurements done as fast as possible to check the progress of the experiments. Everyone is welcome to cheer on them! Julieta Schneider
After three packed days of sampling today the treatment of the mesocosms was done. Treatment means the change of the water alkalinity within the mesocosms. In the end, each of the mesocosms has a different level of alkalinity with the highest level double the natural concentration. This is a world premiere for ocean alkalinity enhancement […]
A mesocosm, in our case, is a huge translucent plastic bag anchored in the sea, with the only opening being well above sea level. In these bags, we can simulate, in this experiment, ocean alkalinity enhancement (OAE) and study its efficiency and possible impacts it would have on a plankton community under natural conditions; but […]
The cruise M176/2 is part of the International GEOTRACES Programme as a process study. The overall aim of cruise M176/2 is to conduct a detailed geochemical sampling of the hydrothermal plume at the Rainbow vent field located at 36°13.80 N, 33°54.14 W on the Mid-Atlantic Ridge (MAR). The deep ocean work will be complimented by […]
The mesocosms are filled! The boat PLOCAN uno set anchor outside the harbour of Taliarte. A long tube connects the boat to the mesocosms. Via this tube, sea water gets pumped by a peristaltic pump on the boat to the pier. Here, it is split equally to the nine mesocosms. This year a new equipment was developed […]
After many months of preparation, uncountable hours of organization, and successfully mastered challenges, finally all researchers and technicians have arrived on the island. During the past weeks, many helpers set up the laboratories and the mesocosms at the pier. Boxes full of equipment from petri dishes to flow cytometers were carried around and unpacked, lots […]