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Trace organic compounds can be attenuated in the hyporheic zone of river sediments. Jörg Lewandowski's research group has now developed a method to study the attenuation performance along a hyporheic flow path in the field. The researchers also analysed the retention of 18 relevant trace organic compounds. They show that high chemical turnover takes place on a very small spatial scale.

The IGB has commented on the draft National Biodiversity Strategy 2030 from a research perspective and is also making the analysis public here.

The Berlin-Brandenburg Academy of Sciences and Humanities (BBAW) has elected Professor Dörthe Tetzlaff and eight other scientists as full members of the Academy during its committee meeting for Leibniz Day 2023. Alongside Professor Jens Krause, she is the second member from the IGB.

Oxygen is becoming increasingly scarce in deeper layers of lakes and reservoirs due to high nutrient inputs and climate change. As a result, the living conditions of fish and invertebrates deteriorate, greenhouse gases are increasingly produced, and nutrient cycles intensify. In addition, hydrogen sulphide, which is toxic to higher organisms, can accumulate.  The treatment of oxygen deficient deep water to produce drinking water is associated with high costs.

Urbanization goes hand in hand with a considerable sealing of soils. About 20 percent of the newly sealed area is not in urban areas, but in rural areas. However, calculations of nutrient fluxes into water bodies have not taken these new sealings in rural areas into account, because these are often based on land use maps and consider urban areas.

IGB has provided feedback on the government draft of the National Water Strategy, emphasising, among other things, the relevance of aquatic biodiversity and the large practical implementation deficit in water management.

Alexander Sukhodolov has been carrying out a research on the Tagliamento River in the north-east of Italy for almost a decade and a half. Scientists are fascinated by this river because it has a number of features that makes it a unique object of study. IGB operates a River Lab at the Tagliamento, where researchers study river hydrodynamics and its effect and interactions with aquatic biota.

How are species richness and the characteristics of running waters related worldwide? This question is being addressed by a team led by IGB scientist Sami Domisch. The researchers have developed the highest-resolution map of the world’s river systems ever produced. The map provides a basis for the detailed analysis of what characterises riverine habitats and how they are interconnected.