First DNA barcoding based record of Echinogammarus trichiatus (Martynov, 1932) (Crustacea, Gammaridae) in Belarus.
A new alien Ponto-Caspian amphipod species Echinogammarus trichiatus (Martynov, 1932) was identified in the Belarusian part of the Dnieper River using DNA barcoding. This species expands the national checklist of Ponto-Caspian amphipods to nine species. We found individuals of both sexes, including ovigerous females and juveniles. The structure of E. trichiatus population and low abundance suggest that it is still being established. We conclude that further expansion of E. trichiatus into Belarusian waters is possible.