exposure will be studied in East Siberia along a transect from the Arctic Ocean to the Lake Baikal. The objectives of the project are to: (i) Reconstruct (a) mean interglacial temperatures at the southern [...] Meyer Funding: Leverhulme Grant Changes of water isotopes in Arctic Sea ice, Ocean, and atMosphere (CiASOM) (2021-2024) The main goal of the Changes of water isotopes in Arctic Sea ice, Ocean, and [...] is to provide a comprehensive description of the present-day Arctic water cycle and related key exchange processes between the atmosphere, ocean, and sea ice, using both instrumental data and climate

handling modern and ancient DNA samples. Our focus study areas are Arctic terrestrial systems (Russia, Alaska, Canada) and coastal–marine polar ecosystems (North Pacific & Atlantic, Southern Oceans). We

Arctic Sea ice: Microstructure and geophysical processes Dr Hajo Eicken, Scientific Director of the Alfred Wegener Institute. Sea ice snow Arctic glaciology Sea-ice geophysics is a central research field within polar and climate sciences. Sea ice covers large parts of the Arctic [...] ice and thereby influence both Arctic ecosystems and large-scale feedbacks within the climate system. Beyond its role as a physical component of the climate system, sea

specifically for polar missions by the French organisation Tara Ocean Foundation – is deliberately allowing itself to become trapped in the sea ice in order to explore the Arctic Ocean. Researchers from [...] a better understanding of the state of our planet’s only polar ocean, as well as the state of the Earth itself.

Young Investigator Group Silicic acid Decline Effect on Marine Arctic Ecosystems SideEFFECT (Graphic: Mar Fernández-Méndez) Human-induced climate change is altering the ocean on a previously unimaginable [...] Arctic Ocean in recent decades. This will affect the carbon uptake capacity of primary producers and the composition of their communities [...] is to understand the consequences of silica decline for the Arctic marine ecosystem and the mechanisms responsible. To understand how climate change affects the Arctic Ocean, we will combine novel

2026 Brussels, Belgium Event Link Poster Tatiana Michelle Torres Ocean Sciences Meeting 2026 February 22-27, 2026 Glasgow, UK Event Link Poster Poster Judith Matz Antonia Thielecke Ulva: Tomorrow’s [...] Sargassum zur CO2-Entnahme und als Rohstoff" Miriam Philippi One Ocean Science Congress 2025 June 3-6, 2025 Nice, France Event Link Poster Judith Matz 56th International Liège Colloquium on Ocean Dynamics [...] . CHALLENGES AND BENEFITS OF AQUAFARMING SARGASSUM IN THE OPEN OCEAN COMBINED WITH ARTIFICIAL UPWELLING. Dr. Miriam Phillippi Dr. Mar Fernandez Mendez

investigate Diatom Silicification in the Eurasian Basin of the Arctic Ocean using Imaging Flow Cytometry and PDMPO natasha.bryan @ awi.de ORCiD Alfred Wegener Institut Am Handelshafen 12 27570 Bremerhaven [...] Phytoplankton communities living inside and below sea ice in the Arctic and the Antarctic arefacing rapid changes due to ongoing climate change. Light and nutrient availability as well as shifts in grazing [...] obtained with the multispectral Imaging Flow Cytometer? How do Arctic phytoplankton communities differ from Antarctic communities in terms of their species composition, silicification degree and mixotrophy

CONTRASTS (PS149) Contrasts of sea ice regimes in the Arctic Ocean during melt season The Polarstern expedition CONTRASTS (2 July to 1 September 2025, also named PS149, ArcWatch-3) investigates [...] characterize the key processes that determine the observed sea ice, ocean, and ecosystem changes in the Central Arctic Ocean during meltseason. The process studies and continuous observations of CONTRASTS [...] characterize the key processes that determine the observed sea ice, ocean, and ecosystem changes in the Central Arctic Ocean during melt season. We will investigate the causes and consequences of differences

fitness and interactions with other organisms. In the open ocean, pelagic animals like zooplankton perform vertical migrations that actively shape the realized environmental cycles that they [...] Calanus finmarchicus during the summer solstice in the high Arctic L Hüppe, L Payton, K Last, D Wilcockson, E Ershova, B Meyer Biology Letters 16: 20200257 (2020) doi.org/10.1098/rsbl.2020.0257 [...] Rhythmic Transcriptome in Calanus finmarchicus during the High Arctic Summer Solstice Period L Payton, L Hüppe, C Noirot, C Hoede, KS Last, D Wilcockson, E Ershova, S Valière, B Meyer iScience 24: 101927

Intergovernmental Panel on Climate Change assesses the state of the oceans with Prof. Dr. Björn Rost Storing heat, absorbing CO₂, and providing habitats for countless species - yet our oceans and coastal [...] Year 2016/17 Resistant Arctic microalgae (Deutschlandfunk, 25.1.2017) Radio interview on the responses of Arctic phytoplankton to climate change on the occasion [...] single-celled algae species and an important source of food in the oceans. Dr Clara Hoppe of the Alfred Wegener Institute examines how changed living conditions as a result of climate change affect Arctic