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Fig. 1: The landscape of the Joux Valley (Canton Vaud) is today dominated by the lake and extensive woodlands. (Photo: Günter Fischer/Chromorange)
January 28, 2016

A lake’s sediments are a window onto the past – the various layers deposited over time can provide valuable information on changes in local environmental conditions. Read more

Outdoor experimental pond facility
January 26, 2016

The outdoor experimental pond facility constructed at Eawag’s Dübendorf site in 2015 is the only one of its kind in Europe. Read more

Eawag-Forscher Alexandre Gouskov fischt beim Kraftwerk Dietikon (ZH) nach Alets. Eawag-Kollegin Marta Reyes unterstützt ihn beim Elektrofischen, Foto: Peter Penicka, Eawag
January 6, 2016

Hydroelectric power plants, weirs and waterfalls are often insurmountable barricades for fish. This can have a significant impact on the genetic structure of the separate populations. Whether and to what extent fish ladders mitigate this negative effect is now being investigated for the first time. Read more

© Andri Bryner, Eawag
December 22, 2015

Climate change is rapidly warming lakes around the world, threatening freshwater supplies and ecosystems, according to a new study spanning six continents. Read more

Cichlids – unlike the Nile perch – have a second set of jaws, but this trait is not always advantageous. (Photo: Eawag)
November 26, 2015

When the biodiversity of an ecosystem is reduced by invasive species, competition for food plays a more important role than has previously been supposed. This was the conclusion of research conducted by Eawag and Bern University scientists on cichlid species in Lake Victoria, which suffered mass extinction following the introduction of the fish-eating Nile perch in the 1950s. Read more

Volcanic eruption. Source: Pixabay.com
November 24, 2015

According to a new international study – in which Eawag scientists played a leading role – the global climate shifted to a warmer state in the late 1980s. The research also indicates that the cooling initially caused by the eruption of El Chichón was followed by a rapid rebound in global temperatures. Read more

The RUV Hybis returns to the research vessel «Sonne» with samples collected from the depths. Photo: Jens Karstens, Geomar
October 29, 2015

An international research team, including scientists from Eawag, has discovered an uncharted and unusually large hydrothermal vent field – with several black smokers – in the Guaymas Basin in the Gulf of California. Read more

The colouring and patterning of trout in the Rhine catchment area (Salmo trutta) demonstrate the wide variety that exists within this species. Fiber aims to inspire enthusiasm amongst fishermen and women for native fish (photos: Fiber).
October 12, 2015

Since it was founded in 2004, the Swiss Fisheries Advisory Service, Fiber, has established itself as an important interface between research and practice. Fiber is jointly funded by the Swiss Federal Office for the Environment and the Swiss Federal Institute of Aquatic Science and Technology (Eawag). Read more

Shown here is one of the whales from which the main samples were taken. Photographed by Pascale Eisenmann, Griffith University. (Photo: © Pascale Eisenmann, Griffith University)
September 30, 2015

In collaboration with Griffith University in Australia, an Eawag research group has succeeded in developing humpback whale cell cultures in the laboratory. Read more

Fig. 1: To study morphological and genetic differences in chain pickerel, samples were collected from 12 US lakes. Electrofishing (pictured here) was carried out after sunset in the littoral zone. (Photo: Jakob Brodersen)
September 17, 2015

After alewife migration had been blocked by the damming of rivers in the Northeastern US, not only did new types of alewife emerge in coastal lakes but a distinct form of pickerel evolved which is specialized for alewife predation. Read more