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IOW Director Oliver Zielinski becomes a member of the German Science and Humanities Council (WR)

IOW director Oliver Zielinski in IOW's marine instrumentation storage

Oliver Zielinski, Director of the IOW and Professor of Earth System Research at the University of Rostock, was appointed to the German Science and Humanities Council (WR) on February 1, 2025, by Federal President Frank-Walter Steinmeier on the joint recommendation of the German Research Association, the Max Planck Society, the German Rectors' Conference, the Helmholtz Association, the Fraunhofer Society, and the Leibniz Association.

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Appreciation from the United Nations: IOW's Baltic Sea long-term observation is officially part of the UN Oceans Decade

The IOW research vessel ‘Elisabeth Mann Borgese’ on the Baltic Sea with the official logo of the UN Ocean Decade.

The IOW has been collecting physical, chemical and biological Baltic Sea data for many decades. As of this year, the centrepiece of the IOW's long-term observation programme – the annual monitoring ship expeditions – has been officially recognised as a project of the United Nations (UN) “Decade of Ocean Science for Sustainable Development 2021 – 2030”.

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How sulphur affects the carbon cycle of subtropical seagrass meadows: New findings from Florida Bay

Marine chemist Mary Zeller taking samples in the study area of the seagrass study in Florida Bay together with her colleague and co-author Chris Lopes

Seagrass meadows have an important climate protection function due to their long-term carbon storage potential. An international research team led by the IOW has now been able to show that seagrass beds have a stronger influence on the carbon and sulphur cycling in subtropical coastal areas than previously thought. Of particular interest is the important role of sulphur, which stabilises organic carbon, regardless of whether it is sequestered in the calcareous sediments of subtropical seagrass meadows or remains in dissolved form.

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A look back on 50,000 years of South Pacific hydroclimate shows:
How wet it gets on earth also depends on the planet’s tilt

Jérôme Kaiser from the Leibniz Institute for Baltic Sea Research Warnemünde, expert in analysing environmental proxies from marine sediment cores

Understanding the causes of changing humidity and precipitation in the earth's past is crucial for better assessments of the planet’s future hydroclimate changes through improved modelling. A research team led by the IOW has now for the first time analysed 50,000 years of mid-latitude hydroclimate of the South-East Pacific using special moisture related indicators in marine sediment cores. The most important result is that natural variations in the earth's orbital parameters exert a decisive influence.

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Marine heatwaves in the Baltic Sea: IOW researchers investigate causes and effects

A summer sunrise over a calm Baltic Sea with the silhouette of a ship on the horizon colours the water and the sky deeply red.

Marine heatwaves – periods in which the upper water layers in the sea temporarily become exceptionally warm – are occurring with increasing frequency worldwide. Recent studies by the IOW have now confirmed this trend also for the Baltic Sea.

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News

New Approaches to Benthos Monitoring in the Baltic Sea:
Project BenthQual kicks off

On March 10, 2026, the IOW project BenthQual started its active research phase with the first sampling. Its goal is to genetically catalogue all known macrozoobenthic organisms of the Baltic Sea and to advance molecular biological monitoring methods for this animal group. The project, which officially started on December 1, 2025, is funded by the Federal Agency for Nature Conservation (BfN) and will run until the end of November 2030.

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Dr. Kristin Beck
Tel.: 0381 5197 135

 

Dr. Matthias Premke-Kraus
Tel.: 0381 5197 102

 

Dr. Sonja Ehlers
Tel.: 0381 5197 109

 

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