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In the fish room at Eawag: A spawning tray is placed into a tank in order to obtain zebrafish eggs for the FET (Fisch Embryo Toxicity) test.
June 13, 2017

Environmental toxicologists at Eawag have developed new methods to allow tests on new chemicals to be carried out without the need for animal experiments. In place of the conventional experiments using adult fish, the team is now working with fish cells and fish embryos. These alternative methods have numerous advantages, and are seeing increasing demand in industry. This has given rise to an Eawag spin-off. We spoke to its founders. Read more

Photo: Aldo Todaro, Eawag
June 8, 2017

Biologist Florian Altermatt of the Aquatic Ecology department has been appointed Vice‑President of the Swiss Academy of Sciences’ Biodiversity Forum. Altermatt, who holds an SNSF professorship at the University of Zurich, is head of the Spatial Dynamics research group at Eawag. Read more

Rotsee, © Eawag
June 7, 2017

In freshwater lakes, large amounts of the greenhouse gas methane are oxidized by bacteria before it can be emitted into the atmosphere. A study in Lakes Rotsee and Zug has now shown that the bulk of this work is done, not by “classical” methane consumers, but by filamentous bacteria previously known only as contaminants of water supplies. Read more

Fig. 1: The scientists investigated water chemistry and biology in reaches upstream and downstream of WWTPs. (Photo: Eawag)
June 1, 2017

Micropollutants enter rivers and streams in effluents discharged from wastewater treatment plants (WWTPs). As well as having adverse impacts on individual species, these substances appear to alter aquatic ecosystem functions, such as litter decomposition. This was shown by a research project launched by Eawag in view of the planned upgrade of selected Swiss WWTPs to reduce micropollutant loads. The effects of the first upgrades are already evident.  Read more

At Tiefencastel (Canton Graubünden), a bypass tunnel built in 2012 ensures that, rather than accumulating in the Solis reservoir, sediments are transported downstream during high flows. Photo: ewz-Medienarchiv, Matthias Kunfermann
May 18, 2017

Bypass tunnels designed to reduce sediment deposition in reservoirs also have beneficial effects on ecological conditions in downstream receiving waters. This was the conclusion of a study carried out on the Solis reservoir in Graubünden by biologists from Eawag and the Zurich University of Applied Sciences (ZHAW).  Read more

Carpanak close to Van was until the years of 1960 a peninsula, accessible by foot. Photo: Yama Tomonaga
May 16, 2017

The sediments of Lake Van in Eastern Anatolia (Turkey) are a valuable climate archive. Now, using the salinity measured in sediment porewater, scientists have reconstructed the huge lake-level fluctuations that occurred over the past 250,000 years. This approach – based on simple physical concepts – is likely to be more widely applied in the future. Read more

On Soppensee (Canton Lucerne) – photo: Eawag
May 9, 2017

Analyses of environmental gases which previously required months of laboratory work can now be carried out rapidly in the field. A group of Eawag scientists have developed a portable mass spectrometer allowing on-site measurements – and a spin-off has been created to commercialize the new system. Read more

Jürg Sigrist – winner in SNSF photography competition
May 4, 2017

Jürg Sigrist has won first prize in the “Women and Men of Science” category in the Swiss National Science Foundation photography competition. Read more

Fieldwork on Lake Victoria
May 2, 2017

A conflict is developing in Africa’s Lake Victoria between fish farming in cages and the “normal” fishing industry. Added to that are other factors such as invasive species, wastewater pollution, pesticides and dam construction are putting the unique ecosystem under increasing pressure.  Read more

Janet Hering
April 28, 2017

The IHE Delft Institute for Water Education has awarded Eawag Director Janet Hering an honorary fellowship. The Dutch institute researches aquatic issues in developing countries and emerging economies, promotes knowledge transfer in these regions and contributes to the training of local aquatic professionals.  Read more