zoologists of the 19th century, who became known for his ecological work on oyster beds in the North Frisian Wadden Sea and coined the term "biocenosis". His concept of ecological living communities was grou [...] research and was frequently visiting the island of Helgoland for his morphological-physiological work on sea algae. In 1860 he was appointed as a full member of the Berlin Academy of Sciences. Pringsheim was [...] founded, which established a small field station for oyster research and the exploration of the Wadden Sea on the Island of Sylt in 1924.

2023 (3rd place). The image is acquired with the MACS airborne system over Nioghalvfjedersbræ in North-East Greenland showing a supraglacial lake that has drained. The dark colors show sediments like dust [...] Richardson Medal for its academic and leadership activities in the design and production of future sea-level projections. The AWI ISMIP6 members are Thomas Kleiner and Angelika Humbert, who contributed

are also involved in basic research and data provision on marine conservation issues, including North Sea research, Antarctic research (CCAMLR), the Helmholtz Institute for Functional Marine Biodiversity [...] on the basis of integrated communication processes, and convert them into targeted products. The North Sea Office, the Climate Office or the Arctic Office play an important role in this. In return, research [...] Oslo-Paris Convention for the Protection of the Marine Environment of the North-East Atlantic 4 HELCOM - Helsinki Commission Baltic Sea Action Plan 5 SCAR - Scientific Committee on Antarctic Research

20-150 cylindrical North Sea / Helgoland Coscinodiscus granii F/2 15 50 40-200 cylindrical North Sea / Helgoland Coscinodiscus wailesii (2x) F/2 15 50 250-500 cylindrical North Sea / Helgoland Thalassiosira [...] 15 50 40-250 elliptic / cylinder - chains North Sea / Helgoland Achnanthes taeniata F/2 15 50 60 elliptic / cylinder - connected to ribbon-like bands North Sea / Helgoland Mediopyxis helysia F/2 15 50 85-125 [...] elliptic / cylinder - chains North Sea / Helgoland Skeletonema costatum F/2 15 100 5 cylindrical - chains Eucampia groenlandica K + Si 4 10 40 cylindrical - chains Arctic / Beaufort Sea Helicotheca sp. K + Si

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

similarly frigid and storm-tossed Southern Ocean. In winter, sea ice up to 1.5 metres thick forms atop the water. Air temperatures over the sea ice can easily reach minus 30 degrees Celsius. Given its high [...] How much is the climate in Antarctic habitats changing? Which animals depend on the sea ice? What will the retreating sea ice mean for the Antarctic krill? Can the krill adapt to the new circumstances? Which [...] to the Antarctic Peninsula than in the past. As a result, the sea ice is dwindling, the ice shelves extending from the land into the sea are crumbling, and the glaciers are retreating. Conversely, in

successfully developed and tested methods for the reintroduction of the native oyster to the German North Sea; both projects were successfully completed in 2025. The RESTORE 3 Upscaling project, launched in [...] objective is to establish and implement large-scale, long-term oyster reef restoration in the German North Sea. All restoration measures are implemented under consideration of the IUCN Standards , the International [...] News Publications & Downloads RESTORE Project: Restoration of European oyster stocks in the German North Sea Find out more SKATE Project: Restoration of native skate species in the German Bight – Developing

understand the structure and function of an ecosystem. Research AnthroTOP Anthropogenic uses in the North Sea: Impacts on marine top predators Human activities have various, mostly negative, impacts on marine [...] uses is crucial. In AnthroTop, we are using models to predict how different use scenarios in the North Sea might affect the distribution of marine top predators and what this might mean for marine ecosystems [...] Funding: Bundesamt für Naturschutz CRANMAN II Scientific studies on the biology and fisheries of the North Sea shrimp CRANgon crangon as the basis for an efficient self-MANagement system Catch of the brown shrimp

Investigators Group “Southern Ocean & Antarctic Sea ice Evolution (SO-ASE)” is looking into the unexpected changes that have been seen in Antarctic sea ice over the last few decades and the need to reduce [...] Ecosystem – is to assess the consequences of the decline in silicic acid concentration in the inflow of North Atlantic water into the Eurasian Arctic for the Arctic marine ecosystem using an ecosystem biology [...] climate change Link to project webpage ARJEL To better understand the role of jellyfish in Arctic seas, the Helmholtz Young Investigators Group ARJEL (ARctic JELlifish) will combine the latest technologies

Investigators Group “Southern Ocean & Antarctic Sea ice Evolution (SO-ASE)” is looking into the unexpected changes that have been seen in Antarctic sea ice over the last few decades and the need to reduce [...] Ecosystem – is to assess the consequences of the decline in silicic acid concentration in the inflow of North Atlantic water into the Eurasian Arctic for the Arctic marine ecosystem using an ecosystem biology [...] climate change Link to project webpage ARJEL To better understand the role of jellyfish in Arctic seas, the Helmholtz Young Investigators Group ARJEL (ARctic JELlifish) will combine the latest technologies