others. For instance, a European plaice in the North Sea can react fairly flexibly. After all, it’s used to the carbon dioxide content in the Wadden Sea varying over the course of the day and the year [...] partly remove the greenhouse gas from the atmosphere. Could compressing it and storing it in deep-sea reservoirs be a solution? This idea was initially tested in a range of experiments focusing on the [...] that a very similar but natural process was already well underway: especially in the shallow shelf seas, carbon dioxide from the atmosphere was dissolving in the water, making it increasingly acidic. Since

providing new means to address these topics. PACES: Topic 2 WP2 Current Projects Microplastics in the North Sea (in-house project; PIs: Claudia Lorenz (DBU stipend), Sebastian Primpke and Gunnar Gerdts) Fram [...] hadal zones in the long-term fate of marine microplastics: Identification of microplastics in the deep sea of the Kuril-Kamchatka Trench, Northwest Pacific (PIs: Angelika Brandt (Senckenberg Gesellschaft für

the AWI’s Data Assimilation group. I’m interested in using data assimilation to study the global air-sea flux of CO 2 . Maya Dalby (Postdoc) I studied biology and marine biology and have become a zooplanktologist [...] interactions affect the efficiency of the biological carbon pump and lastly carbon export to the deep sea and sediments. Currently, I investigate how to implement new iron sources and new phytoplankton functional [...] projects. I completed a master's thesis on the effects of eddies on the phytoplankton bloom in the North Atlantic using a simple NPZD (Nutrient-Phytoplankton-Zooplankton-Detritus) model (biogeochemical model)

Helgoland in the North Sea comprising in several thousands of preparations. Lately we improved and adapted this automatic image acquisition and cell enumeration system for usage at high seas on board an o [...] Helgoland in the North Sea comprising in several thousands of preparations. Lately we improved and adapted this automatic image acquisition and cell enumeration system for usage at high seas on board an o [...] During the last 10 years, scientists have developed collaboration around the North Sea, Channel, Baltic and Mediterranean Sea, sharing experience and knowledge on online flow cytometry measurement at high

warming trend in the Arctic being about three times that of the global average, is also manifested in sea-ice and the ocean. We are establishing a strong baseline of important ocean quantities in a historically [...] S. (2016)An assessment of the Arctic Ocean in a suite of interannual CORE-II simulations. Part I: Sea ice and solid freshwater ,Ocean Modelling, 99 , pp. 110-132 .doi:10.1016/j.ocemod.2015.12.008 , hd [...] Bauch, D. , Rutgers v. d. Loeff, M. and Rabe, B. (2012)Utility of dissolved Barium in distinguishing North American from Eurasian runoff in the Arctic Ocean ,Marine Chemistry., 132 , pp. 1-14 .doi:10.1016/j

Does sea ice play a particular role in Arctic jellyfish ecology? We evaluate the role of sea ice as a habitat for jellies in order to make predictions on their potential decrease with further sea ice decline [...] DNA analyses. Such interdisciplinary surveys allow us to link distributional patterns of jellies to sea-ice and oceanographic (sub-mesoscale) features. We apply species and community distribution models [...] of jellies in the Arctic food web, their importance for higher trophic levels and their link to the sea-ice trophic pathway will be elucidated with metabarcoding and biomarker studies. We plan to conduct

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

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

interglacial period when polar surface temperature and global sea level were higher than today. This project aims to quantify processes that lead to sea level rise during climate warming. This requires integrating [...] extremes as well as sea level change for the benefit of society. We are involded in the subtopics: Subtopic 2.1 Warming climates Subtopic 2.2 Variability and extremes Subtopic 2.3 Sea level change Subtopic [...] l Oscillation (AMO) significantly influences global climate patterns through its impact on North Atlantic Sea surface temperatures, yet the mechanisms driving its representation in climate models, particularly