Knowledge transfer With the disappearance of the European oyster from the North Sea, general knowledge about this once important for society species has also been lost: Oyster fishery was still considered

RESTORE Restoration of European oyster ( Ostrea edulis ) stocks in the German North Sea Project duration: 2016 – 2025 Within the framework of the testing and development project (german: “Erprobungs- und [...] procedures for sustainable stock restoration of the European oyster Ostrea edulis in the German North Sea are being developed for the first time, as well as implemented and tested in practice on a model [...] develop a comprehensive restoration program aiming to reestablish, at selected sites of the German North Sea, healthy populations of the highly endangered oyster species, as well as the oyster reef ecosystem

endangered species in Europe, and of the oyster reef ecosystem at selected sites in the German North Sea. The following objectives are in focus: Establish a pilot oyster reef in the “Borkum Reef ground” [...] technologies Development of a work frame for further oyster restoration measures in the German North Sea Exclusive Economic Zone (guideline) Pilot tests in the nature reserve “Helgoländer Felssockel” The [...] rates to those in the RESTORE preliminary study ? Are they adapted to the new habitat in the deep North Sea? Do they survive there? When do the oysters reach sexual maturity? In addition to the oysters themselves

Transpolar Drift carries sea ice, fresh water, and suspended matter from the Siberian shelves across the central Arctic towards the Fram Strait channel, which connects to the Nordic Seas. This cross-Arctic flow [...] including microplastics and heavy metals – from Siberian river systems into the central Arctic and the North Atlantic. This material affects Arctic biogeochemistry and ecosystems, while the fresh water itself

MAT252 Sercon-2020 δ 30 Si δ 18 O (diatoms, radiolarians, sponge ferrules) Reconstruction of polar sea surface salinity changes and meltwater events (δ 18 O) Efficiency of the biological pump (δ 30 Si) [...] measurement of stable carbon isotopes of dissolved inorganic carbon (DIC) in waters from the polar seas is routinely carried out in our laboratories. This parameter is being determined via a GasBench Plus [...] supply of nutrient silicon and its use in polar and subpolar ocean regions (e.g. Southern Ocean, North Pacific) can be reconstructed on geological time scales. For the measurements, pure diatom-, radiolarian-

The deep branch of the North Atlantic THC mainly consists of deep-water formed by atmospheric cooling in the Nordic Seas, which overflows the Greenland-Scotland Ridge into the North Atlantic. The Eirik Drift [...] to the poles. The major formation regions of deep and bottom water are the Nordic Seas, the Weddell and the Ross Seas. The Eirik Drift south of Greenland and the Argentine continental margin (red circles) [...] closely downstream of the North Atlantic deep-water formation region and has been shaped by the Western Boundary Undercurrent (WBUC), which constitutes the main part of the deep North Atlantic THC. The sedimentary

exhibition is being created from the history of the North Sea to the future of marine research Find out more Guest Research and Courses at the Wadden Sea Station Sylt We offer offer excellent working conditions

and oceans - from the atmosphere to the bottom of the seas. At the Helgoland and Sylt sites, scientists from the Institute research the North Sea and its coasts. The excellent scientific infrastructure [...] future, visitors will be able to experience a unique exhibition ranging from the history of the North Sea to the future of marine research. Among other things, the focus will be on an 80,000-litre aquarium [...] researching on Helgoland? What animals and plants live in the waters around the island? How has the North Sea changed over time? And what impact will climate change have right on our doorstep in the future

conditions, in which liquid water droplets in the clouds protect the sea-ice surface from further cooling; on the other, clear skies, where the sea-ice surface can emit heat into space with very little interference [...] experiencing some of the most rapid climatic changes on Earth, manifesting in dramatic warming and loss of sea-ice at both poles. Key atmospheric contributions to the observed polar warming are transport and exchange [...] Observatory for the Study of Arctic Climate (MOSAiC) was a major year-long campaign in the Central Arctic Sea ice, using the research icebreaker Polarstern . MOSAiC was a large international effort spearheaded

coasts of our seas have always been a natural and constant companion for the inhabitants. However, due to the climate crisis, they can increase dramatically and get out of hand. With rising sea levels and [...] an increase in extreme storms, severe erosion is taking place on many coasts - not only in the North Sea, but also in the Mediterranean. The island of Djerba, a popular vacation destination in Tunisia [...] activities. The Project objectives At the AWI with the Biological Institute Helgoland and the Wadden Sea Station Sylt as well as the University of Sfax in Tunisia, researchers are working on slowing down