Invasion biology - from the basis to management with Ponto-Caspian gobies
For several years now, Ponto-Caspian gobies have been spreading along European waterways, presumably aided by shipping routes. In 2012 the round goby was detected in Basel for the first time while the bighead goby has reached Switzerland shortly beforehand. Both bottom-dwelling fish species are known for their rapid propagation.
Ponto-Caspian gobies pose a threat to native ecosystems. Therefore, the MSE works closely together with the Confederation and the cantons to develop scientifically sound management measures. In addition to this applied perspective, Ponto-Caspian gobies are also ideal model organisms for dealing with genetic issues.
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Ponto-Caspian gobies in Switzerland
Compared to earlier years, we observe lower catch figures for the round gobies in the port of Kleinhünigen this year, and a slight increase in the number of trap catches for the bighead gobies. No statement can be made about the reasons at present. Fluctuations in catches and stocks are a recurring phenomenon and are influenced by various circumstances, such as changes in the environment (e.g. temperature, construction measures in the port, etc.).
Round Goby Genome
The round goby has become a novel model species in detoxification research, alternative reproductive strategies, salinity tolerance, invasion biology, population genetics, and food web ecology. We have sequenced and assembled the genome of the round goby and are currently annotating gene families and pathways related to invasion, colonization, and adaptation.