The zebra mussel is an invasive species that has spread to Sweden through boat traffic and effectively established itself in several places. Once established, it can result in deteriorated water quality and bottom structure, as well as disadvantage native species. It can also cause serious damage to infrastructure if it attaches to water pipes etc. On behalf of the County Administrative Board of Skåne, an eDNA survey was conducted at 17 locations around the county. The species was detected in two lakes with confirmed occurrences. The study can serve as an initial step in a monitoring program to track the spread of the species in the county, enabling prompt measures to be taken in case of signs of establishment.
