transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine the factors controlling Arctic deep-sea biodiversity. • Permanent presence at sea, from surface to depth, for the [...] The Weddell Sea features a rich and diverse ecosystem, complex sea-ice dynamics and intense ocean circulation. The physical and biogeochemical processes that prevail in the central Weddell Sea and the water [...] transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine the factors controlling Arctic deep-sea biodiversity. • Permanent presence at sea, from surface to depth, for the

Koldunov, D. Sein, and T. Jung, 2022: Assessment of the Finite-VolumE Sea ice–Ocean Model (FESOM2.0) – Part 2: Partial bottom cells, embedded sea ice and vertical mixing library CVMix. Geosci. Model Dev. , 15 [...] e.adq7280 . Wang, Q., S. Danilov, and T. Jung, 2024: Arctic freshwater anomaly transiting to the North Atlantic delayed within a buffer zone. Nature Geosci ., 17 , 1218–1221, doi.org/10.1038/s41561-024-01592-1 [...] Goessling, H.H. Hellmer, D.V. Sein, T. Semmler, D. Sidorenko and T. Jung, 2022: Delayed Antarctic sea-ice decline in high-resolution climate change simulations. Nature Comm. , 13 , 637, doi.org/10

Stefanie Arndt, sea ice physicist at the AWI “The polar regions play a very special role at the COP, as this is where we are observing the greatest changes in global climate change as a whole. Sea ice areas [...] for climate modeling, sea ice prediction and the general physics of climate change Find out more To the complete expert database Stefanie Arndt Dr Stefanie Arndt, expert for sea ice physics Find out more [...] of key EU marine targets, including the commitment to legally protect at least 30 per cent of EU seas and reduce the negative impacts of fisheries on sensitive habitats and species. At COP30, Josie Antonucci

Debusschere, E. (2024): Revised clusters of annotated unknown sounds in the Belgian part of the North sea. Frontiers in Remote Sensing, 5, 1384562. DOI: doi.org/10.3389/frsen.2024.1384562 Parcerisas [...] in the Weddell Sea. Endangered Species Research, 30:239-253. DOI: doi.org/10.3354/esr00739 . 2015 Menze S, Zitterbart D , Van Opzeeland IC, Boebel O (2016). The influence of sea ice, wind speed [...] Van Opzeeland, I., Eriksson B.K. (2025): The biological soundscape of temperate reefs in the Wadden sea. Sci Rep 15, 9216. DOI: doi.org/10.1038/s41598-025-92955-0 Wöhle, S., Thomisch, K., Burkhardt

The avian influenza type H5N1 has been spreading in Germany since the end of October. Researchers from the Alfred Wegener Institute are now turning their attention to the Antarctic: on an expedition t

communities of reefs in the Wadden Sea Diego Filun (2022) , Uni Bremen Spatio-temporal patterns of Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea Elena Schall (2021) , Uni Oldenburg [...] (Collaboration with Hearing4All) Marie-Luise Schneider (2025), University Oldenburg Soundscape of the North Sea: Acoustic fauna identification using Hydrophones and Baited Remote Underwater Videos Marisa Vivanco [...] humpback whale populations in the eastern Weddell Sea in 2011 and 2012 Ramona Mattmüller (2019), Master Uni Bremen Marine mammal acoustic presence in relation to sea ice concentrations off Tasiilaq, East Greenland

Composition, assimilation and degradation of Phaeocystis globose-derived fatty acids in the North Sea . Journal of Sea Research . 50 (4). 271-283 Paper - Hamm, C. (2003): Kieselalgenschalen – Spielerei oder [...] Dubischar, C.D., Pakhomov, E.A., von Harbou, L., Hunt, B.P.V., Bathmann, U.V. (2011): Salps in the Lazarev Sea, Southern Ocean: II. Biochemical composition and potential prey value . Marine Biology . 159 (1). 15-24 [...] Dubischar, C.D., Pakhomov, E.A., Hunt, B.P.V., Hagen, W., Bathmann, U.V. (2011): Salps in the Lazarev Sea, Southern Ocean: I. Feeding Dynamics . Marine Biology . 158. 2009-2026 2000-2009 Chapter - Hamm, C

Molecular Sea Ice Ecology Polar oceans are seasonally covered by sea ice with an average size of the continent of North America. Despite harsh conditions therein, sea ice and its lower surface can carry [...] typically dominated by Diatoms. Sea ice can provide important primary production to polar oceans via these communities, although they are often very patchy. In times of declining sea ice coverage it is a major [...] major challenge to determine current sea ice biodiversity, functions provided by its biota, and the future of sea ice communities in a warming ocean. We address these questions through analyses of total

on a previously unimaginable scale. One of the most obvious changes is the rapid decline in Arctic sea ice over the last two decades. This has a direct impact on Arctic microorganisms as more light is available [...] new production. In addition, ocean warming is leading to changes in the winter mixed layer in the North Atlantic, which has reduced the amount of silica entering the Arctic Ocean in recent decades. This

biodegradable floating meshes, and automated seeding—the project aims to upscale Ulva production in the North Sea and Gran Canaria. These techniques support a circular blue bioeconomy by transforming harvested