Science that matters

Eawag is one of the world’s leading aquatic research institutes. With its professional diversity, close partnerships with practitioners and an international network, Eawag offers an excellent environment for the study of water as a habitat and resource, for identifying problems at an early stage and for developing widely accepted solutions.

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The latest news from Eawag

The latest news from Eawag

Pair of whitefish (C. lavaretus) spawning near the shore in Lac d'Aiguebelette (Photo: Alamy).
Publication
Exceptional diversity of whitefish
May 9, 2025

The diversity of whitefish species in Swiss lakes is unique and plays a central role in lake ecosystems. A comprehensive Eawag report now summarises the results of 150 years of research on these fish. They make it clear that the mechanisms and environmental conditions that have contributed to their development must be taken into account in order to preserve this species diversity. Last but not least, protecting whitefish diversity helps to preserve the natural yield potential of lakes as a source of food for humans.

Photo Peter Penicka, Eawag
News
Water chemist Urs von Gunten retires
May 8, 2025

Professor Urs von Gunten is one of the world's best-known scientists when it comes to the treatment of drinking water, in particular oxidation and disinfection processes. He has been conducting research at Eawag since 1989, with interruptions; from 2006 he was a titular professor at ETHZ, and from 2011 a full professor at EPFL. Now he is retiring. He retains a consultancy mandate... and the freedom to critically scrutinise the narrative of Switzerland's leading role in research.

Blue-green areas are important for improving the urban climate - but also for connecting animal and plant habitats (Photo: Giulia Donat, Eawag).
News
Green roofs and ponds as networks
April 15, 2025

To enhance biodiversity in water and on land, we need high-quality, interconnected natural areas. Here the cooperation of different stakeholders is essential.

Filters and heat exchangers can protect infrastructures from clogging by mussels (Photo: Eawag, Linda Haltiner).
News
Gaining time in the fight against the quagga mussel
April 8, 2025

To contain the spread of the invasive quagga mussel, Eawag researchers recommend swift action based on comprehensive prevention, early detection and containment.

Researcher Elisabeth Janssen during sampling at Lake Greifensee (Photo: ETH Board, Daniel Kellenberger).
News
Blue-green algae: every lake is unique
April 3, 2025

To predict toxic algal blooms, researchers from Eawag recommend a combination of species identification and chemical measurements. Now, a new study confirms that there is no magic formula and that, instead, specific indicator molecules are needed for each lake.