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Cocaine accumulation in fish eyes

September 29th, 2016 – A study by Eawag and Zurich University researchers using a new imaging method has revealed that, surprisingly, cocaine accumulates in the eyes of zebrafish.

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Abb. 1: Während sechs Tagen arbeiteten die Studierenden in 18 interdisziplinären Gruppen an ihrer Problemdefinition und praktischen Lösungsansätzen. (Foto: ETH Zürich / Alessandro Della Bella)
September 27, 2016

Together 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. Read more

Fig. 1: Gammarus alpinus preserved in alcohol: the distinctive morphological features of this amphipod species are only apparent under the microscope. (Photo: Roman Alther)
September 8, 2016

Biologists 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. Read more

Scientist looking in the lake with an aquascope. Photo: Eawag, Aldo Todaro
September 6, 2016

Lakes 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. Read more