Archive News

September 29, 2016A study by Eawag and Zurich University researchers using a new imaging method has revealed that, surprisingly, cocaine accumulates in the eyes of zebrafish. The findings indicate that chemicals – especially psychoactive drugs – need to be assessed quite differently with waterborne exposure than, for example, when pharmaceutical substances are tested in mice. In particular, the uptake mechanisms and effects of cocaine in fish cannot simply be transferred to mammals or humans.

September 27, 2016Together with Eawag, the ETH organized at the beginning of September 2016 the second ETH Week. More than 180 students from 20 countries and all 16 departments accepted the challenge of formulating problems on the theme “Challenging Water” and searching for sustainable solutions.

September 16, 2016Switzerland’s lakes are not only diverse ecosystems, but also recreation sites, fishing grounds and energy sources. At this year’s Info Day, the tensions between these competing interests were explored. It was concluded that sustainable management calls for an understanding of the complex interactions occurring in lakes – which in turn requires scientific data and appropriate methods of observation.

September 8, 2016Biologists at Eawag have described a new amphipod species which is endemic to the Alps. While alpine lakes provide relatively undisturbed habitats for Gammarus alpinus, this species is being displaced by an invasive amphipod in Lake Constance.

September 6, 2016Lakes are major ecosystems. Their secrets have been investigated in Switzerland for more than 100 years. Nonetheless, scientists and their partners at the federal and cantonal specialist departments can still be surprised. For example, a fish in Lake Constance that had been declared extinct, or the results of Roman forest clearing around Lake Murten or concentrated antibiotic-resistant genes in the vicinity of wastewater discharges in Lake Geneva.

August 30, 2016“We should soon be able to monitor biodiversity just as we can now assess water chemistry,” says Florian Altermatt of the Aquatic Ecology department. Genetic material is known to be continuously released into the environment (eDNA) – e.g. in faeces or skin cells – and the biologists now demonstrated the practicability of this approach. In one litre water from the Glatt river (Canton Zurich), they identified numerous species ranging from the mayfly to the beaver. The method can be automated.

August 23, 2016Despite extensive conservation efforts, the global loss of biodiversity is continuing. According to an article by biologists at Eawag and Zurich University, published in the Journal of Applied Ecology, this is partly due to the inadequacy of existing conservation measures.

August 17, 2016Political actors tend to perceive their opponents as more influential than they really are, and to overestimate the differences between opposing groups. As a result, policy‑making and the search for feasible compromises become more difficult. This phenomenon, as Eawag political scientists have now shown, is apparent even in a consensus-based democracy like Switzerland.

August 15, 2016The VUNA recycling process, which recovers nutrients from urine, recently had its own display as part of an exhibition at the “Umwelt Arena” (Environment Arena) in Spreitenbach. Eawag’s exhibit was designed to raise awareness amongst visitors to the exhibition of the fact that wastewater also contains reusable substances, which can be used, for instance, for making fertilizers.

August 11, 2016Ole Seehausen, Head of the Department of Fish Ecology and Evolution at Eawag in Kastanienbaum and Professor of Aquatic Ecology at the University of Bern has been awarded the “Kilham Memorial Award” by the International Society of Limnology (SIL). Last week, at the 33rd SIL Congress, he gave the Kilham Memorial Lecture in Turin.