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This page contains latest news regarding the institute. Some entries are only available in German.


Major Baltic Inflows can cause just minor and only temporary improvements of the Baltic Sea´s state of eutrophication

With detailed analyses of water and sediment samples from the Gotland Basin, geoscientists from the Leibniz Institute for Baltic Sea Research succeeded in tracing the geochemical processes, which followed the Major Baltic Inflow in 2014/2015. Their conclusion: even very large amounts of oxygenated waters cause only small and temporary improvements of the nutrient situation in the central Baltic Sea.

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Bottom trawling in marine protected areas of the Baltic Sea: IOW launches expedition to study the impacts

On June 2, 2021, a two-week ship expedition led by the IOW will set out to marine protected areas in the Fehmarnbelt and the Oderbank. The aim of the research cruise is to carry out a comprehensive survey of the seabed’s condition, which, in addition to geophysical and geochemical properties, for the first time also includes the entire near-bottom food web – ranging from bacteria to fishes. The cruise is part of the pilot missions of the German Marine Research Alliance to investigate the impact of bottom trawling on marine protected areas in the North and the Baltic Sea.

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Vibrios and climate change: Can nature-based methods mitigate the potential threat in the Baltic Sea?

Vibrio bacteria, including species that are harmful to humans, are a natural component of Baltic Sea plankton. As a consequence of climate change, they may become more common due to rising water temperatures and thus an increasing health risk. The BaltVib project, coordinated by the IOW, is investigating whether certain plant and animal communities such as seagrass and mussel beds naturally reduce near shore Vibrio abundance and how this effect can be supported through actively shaping the marine environment.

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Travelling back in time to study phytoplankton of the past to explore the future of the Baltic Sea: PHYTOARK goes live

Climate change threatens marine biodiversity and thereby the stability of entire marine ecosystems. For phytoplankton, the impact of these changes can already be detected. By using state-of-the-art palaeoecology and biodiversity research methods, the new PHYTOARK research network will look back into 8,000 years of phytoplankton history archived in Baltic Sea sediments, to reconstruct responses to past changes of the environment due to climate fluctuations. The insights will be used to improve the assessment of impacts of present and future climate change.

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The Amazon and the sea: Expedition investigates matter fluxes and food webs in the world’s largest river plume

With the help of highly resolved realistic model simulations physicists at the IOW have succeeded in depicting the so-called submesoscale dynamics in the Eastern Gotland Basin – the deepest of the large basins of the central Baltic Sea. Thus, the researchers gained the opportunity to investigate these highly dynamic phenomena, which – although being known for decades through satellite images – are up to now only scarcely studied and poorly understood because of their small size and short-lived nature.

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IOW operations during corona

IOW has adapted its operations to the current Corona situation as follows:

Many of our staff still work from home. Therefore, the best way to reach us is by telephone or e-mail.

In particular, we ask service providers or suppliers to contact their respective client at the IOW by either phone or e-mail. We ask for your patience in case of any delays in processing.

Access to the building for guests and students is only possible with explicit permission and by registration of contact details. In all public spaces of the IOW, the established distance and hygiene rules continue to apply, such as the wearing of protective medical masks.

The IOW maintains the right to reintroduce mandatory testing of visitors or to prohibit access altogether if the situation deteriorates. The institute management will announce this here.

Still, please feel free to contact us any time:

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Contact persons in all matters of press and public relation at the Leibniz Institute for Baltic Sea Research are


Dr. Kristin Beck
Tel.: 0381 5197 135


Dr. Barbara Hentzsch
Tel.: 0381 5197 102

Satellite image of the month

Satellite image of the month
Mean Sea Surface Temperature of Baltic Sea on 25.03.2019 produced from data of NOAA- and MetOp weather satellites.

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