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Press Archives

10.11.2020

Regional consequences of last glacial climate fluctuations in ultra-high resolution with the help of climate indicators

Using a sediment core from the Black Sea, Warnemünde geologists reconstructed together with an international team how the transition into the Greenland Interstadial 10 (GI10), a climate warming 41,000 years ago, affected the Black Sea region over the course of decades. The in-depth study was made possible by a precise synchronization with the ice cores and high resolution multi-proxy analyses. Since this detailed paleo study covers time scales comparable to those of the recent global warming, it contributes to the understanding of relevant processes.

23.09.2020

The long arm of the Atlantic: How the climate of Northern Europe is influenced from afar

Climate researchers at the IOW for the first time were able to show with the help of statistical analyses, how fluctuations in the Atlantic Multidecadal Oscillation (AMO) affected the meteorological phenomenon of the North Atlantic Oscillation in the course of the last millennium. They also could establish a link between AMO and climate variables in the Baltic Sea region, such as the spread of sea ice, surface water temperature or river inflow.

07.09.2020

Marine fungi in focus: Excellent young researcher starts Emmy Noether group at IOW

On August 01, 2020, Isabell Klawonn, Ph.D., who is specialised in microbial interactions and element fluxes in marine ecosystems, started working at the IOW. She will establish a new research group at the institute to investigate the largely unknown role of marine fungi, aided by the prestigious Emmy Noether Programme for outstanding young researchers, which is funded by the German Research Foundation (DFG).

11.08.2020

Time traveling with biomarkers: Baltic Sea sediment archives reveal frequency of “blue-green algae” since 1860

Researchers from Warnemünde and La Jolla, California, have succeeded for the first time in reconstructing the history of blue-green algae blooms in the central Baltic Sea over the last 160 years by using biomarkers and a well-dated sediment core. This way, they extended the period, for which information on the frequency of blooms was previously available, well into the past. In the international journal “Biogeosciences” they discuss possible causes for the fluctuations they detected.

04.08.2020

To end the eutrophication of the Baltic Sea: Do the measures show effects?

Between 1995 and 2014, river discharges of the two main drivers of eutrophication, nitrogen and phosphorus, were significantly reduced in the western Baltic Sea. But are these measures also having an effect in the open Baltic Sea? The marine chemists of the IOW have not yet found any clearly discernible changes there. In a recently published study, they report on a method they used to track the fate of nutrients from river mouths into the Baltic Sea.

16.07.2020

Evaluation: Leibniz Association praises the IOW’s performance and recommends expansion of research with additional funds

The Leibniz Association senate concluded the regular evaluation of the IOW with a very positive assessment and recommends that the federal and state governments continue their joint funding of the institute. It states that the IOW has successfully advanced its scientific profile, focusing both on the unique ecosystem of the Baltic Sea and on more global issues such as climate change impacts, marine litter and biodiversity. The senate strongly supports the plan to expand the institute's technical and methodological spectrum through an additional 2 million euros per year in order to conduct more research on shallow coastal waters.

19.06.2020

Our “top athletes” on the seafloor: Hediste diversicolor, Arctica islandica, Echinocardium cordatum, Amphiura filiformis

A comparative study in four sea regions (German Baltic Sea, German North Sea, Belgian part of the North Sea and Eastern Channel) identified the organisms behind these Latin names as the most important actors in wide areas of the North Sea and the Baltic Sea in terms of bioturbation. They ensure that the bottom is supplied with oxygen, which triggers a chain of other vital processes. In different environments, only the ranking within this group changes. An international team led by the Warnemünde biologists Mayya Gogina and Michael Zettler now published the results. Using maps of the bioturbation potential, they defined areas of high ecosystem service particularly worthy of protection.

27.05.2020

Upwards with the “bubble shuttle”: How sea floor microbes get involved with methane reduction in the water column

For the first time, an IOW research team has been able to determine the efficiency with which methane-oxidising bacteria from the seafloor can travel with gas bubbles from submarine methane seeps into the open water column and influence biogeochemical processes there.

08.05.2020

When every particle counts: IOW develops comprehensive guidelines for microplastic extraction from environmental samples

Today, microplastics can be detected in almost every ecosystem in the world. Despite intensive research into this massive environmental problem, it is still a challenge to identify and quantify these synthetic particles made of various types of plastic in environmental samples. A team of researchers at the IOW has now for the first time compiled a comprehensive overview of methods that enables the use of standardized microplastics extraction workflows optimized for samples with very different properties.

28.02.2020

UV light against undesirable underwater growth – Innovative antifouling system from IOW now ready for serial production

Biofouling is a major problem for any technical equipment that has to remain operational under water for long periods of time. Crusts of mussels and barnacles usually cause mechanical problems, but even thin biofilms of algae and bacteria can damage sensitive measuring equipment as well as interfere seriously with measurements. After about three years of development, an antifouling device designed at the IOW has now been licensed for commercial production. The new system for the first time uses lens optics to focus the UV light of energy-efficient LEDs and thus keeps irradiated surfaces free of fouling.