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May 13, 2022

May 13, 2022As of 1 May 2022, Andrin Krähenbühl will head the FIBER fisheries advisory service at the Swiss Federal Institute of Aquatic Science and Technology (Eawag) in Kastanienbaum. The biologist and angler brings with him experience from research and association work. And he is convinced that it serves everyone if the institutions work well together: fisheries, research and biodiversity.

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April 11, 2022

April 11, 2022Monitoring freshwater ecosystems by means of environmental DNA methods offers new opportunities for detecting invasive species. An Eawag study has shown that an invasive jellyfish is more widespread in Switzerland than previously thought.

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March 29, 2022

March 29, 2022Artificial floods mimick natural flows to mobilise and transport sediment downstream, reshape the river and reinstate important habitats for native aquatic insects and fish. Improved outcomes can occur when these artificial floods converge with natural flows and sediment delivery from unregulated tributary streams further down the valley.

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March 24, 2022

March 24, 2022New research findings, and a resulting fact sheet, provide insights into the problematic spread of the invasive quagga mussel in Switzerland. The authors of the fact sheet are concerned that the aggressive spread of this mussel species will have a substantial detrimental effect on lake ecosystems.

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March 23, 2022

March 23, 2022Among aquatic insects in Swiss streams, those species that like it warm and can cope well with pesticide exposure are on the rise. This is shown by a joint study by WSL and Eawag using data from biodiversity monitoring between 2010 and 2019. The results indicate a possible influence of climate change.

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March 1, 2022

March 1, 2022The use of lake and river water to generate heat and cold is constantly increasing. The potential is enormous. Nevertheless, negative impacts on aquatic ecosystems must be avoided. A fact sheet from Eawag lists the key points in this regard.

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February 24, 2022

February 24, 2022Nearly a hundred year old tissue samples from Lake Constance have enabled Eawag researchers to compare genetic material of an extinct whitefish species with that of extant co-occurring species. Their investigation showed that fragments of the genome of the extinct species have survived in today’s species. This could potentially facilitate the recolonization of the currently not occupied deep-water habitat.

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February 17, 2022

February 17, 2022Often overlooked until now: symbioses could be a driving force for the emergence of biodiversity. A case where bacteria live in aphids shows that this can even have practical implications for biological pest control.

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February 15, 2022

February 15, 2022The buffet of healthy insects starts earlier, is no longer as varied, and is only half as plentiful as it once was. This is the situation faced by insectivorous birds at Northern Temperate latitudes, such as Switzerland, during the breeding season. Ryan Shipley from the Eawag water research institute, has been investigating how climate change affects the timing and quality of the food supply for breeding birds.

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February 1, 2022

February 1, 2022Scientists from 48 countries initiated the “European Reference Genome Atlas” at the start of 2021. Within this project, around 600 researchers aim to decode the genetic repertoire of all species of the continent by generating reference genomes for the roughly 200,000 eukaryotic species. The hope is to strengthen the foundations for conservation of biodiversity.

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