marine organisms in the fjords of Spitsbergen react to increased UV radiation and increasing ocean acidification. The geosciences, on the other hand, focus on changes in permafrost soils and glacier systems [...] Without Borders in the Arctic The Svalbard archipelago is located east of Greenland in the Arctic Ocean. The archipelago is home to Ny-Ålesund, one of the northernmost settlements in the world. Depending

influences. One of our priority questions is how environmental parameters (temperature, hypoxia, ocean acidification, pollution) and their combination affect fish, mussels and snails. One focus is on the cellular

highest authority Dr Katja Mintenbeck, marine biologist at the Alfred Wegener Institute. IPCC Ocean acidification At regular intervals, the International Panel on Climate Change is faced with a mammoth task

2012, she received her PhD. from the University of Bremen for investigating the impacts of ocean acidification on marine macroalgae. After finishing her PhD, she participated in two diving expeditions to

2 supply outdoor mesocosms comprising of twelve 1,800 l replicate tanks to simulate ocean warming and acidification under various tidal conditions. List is the home port of the AWI`s state-of-the-art research

benefiting from the developments. Find out more Sea Climate Arctic Antarctic North Sea Ocean Acidification Our planet’s oceans absorb tremendous amounts of carbon dioxide. Instead of causing atmospheric temperatures [...] planet. Find out more Ice Climate Sea Arctic Antarctic Sea Ice Broad expanses of the Arctic Ocean and the Southern Ocean in the Antarctic are covered in sea ice. The ice plays a vital role in our climate system [...] greenhouse gas dissolves in the water. But this service provided by the oceans comes at a price. The more greenhouse gas the oceans remove from the atmosphere, the more acidic their waters become. Find out

lower temperature will lead to reduced performance while ocean acidification may be negligible most studies found no effect of ocean acidification on cold- water corals; though less abundant in areas 1 T: [...] farms Co-PI: Marlene Wall, Claudio Richter, Ute Hentschel ©U. Pörschmann ST 6.4 Use and misuse of the ocean: Consequences for marine ecosystems Lozano-Muñoz et al. 2021 An integrated holobiont view on cold-water

ankton, Karakuş et al., 2022 ), and to include the sensitivity of phytoplankton growth to ocean acidification ( Seifert et al., 2022 ). Main REcoM references (chronological order): •[3 phytoplankton functional [...] M., Hagen, W., Hauck, J., 2022. The Role of Zooplankton Grazing and Nutrient Recycling for Global Ocean Biogeochemistry and Phytoplankton Phenology. JGR Biogeosciences 127. doi.org/10.1029/2022JG006798 [...] Resplandy, L., Rödenbeck, C., Schwinger, J., Séférian, R., 2020. Consistency and Challenges in the Ocean Carbon Sink Estimate for the Global Carbon Budget. Front. Mar. Sci. 7, 571720. doi.org/10

with reduced or zero waste • Potential of shellfish as sink for CO2 and of algae to mitigate ocean acidification • Identify industry barriers for production of seed of low trophic species • New and novel [...] aquaculture network along and across the Atlantic Ocean Atlantic Consortium AquaVitae will contribute to the Belém Statement, the joint Declaration on Atlantic Ocean Research and Innovation Cooperation between [...] it contains. AquaVitae Project Unlocking the Potential of Sustainable Aquaculture in the Atlantic Ocean www.aquavitaeproject.eu Hatchery & Seedling Production Post Hatchery & Seedling to Harvest Processes

changes in biogeochemical and planktonic parameters due to fast temperature increase and acidification of the Arctic Ocean. Team Dr. Eva-Maria Nöthig (coordinator, phytoplankton ecology & particle flux) Prof