Ponto-Caspian amphipods (Crustacea, Amphipoda) and their microsporidian parasites recently established in Sweden
Journal: Epsilon Open Archive (Sveriges lantbruksuniversitet biblioteket (Swedish University of Agricultural Sciences))
Year: 2025

The invasive amphipods Dikerogammarus villosus, D. haemobaphes and Pontogammarus robustoides, which originate from the Ponto-Caspian region, are amongst Europe's most ecologically disruptive amphipods and have recently been detected in Sweden, marking their northernmost record and indicating a concerning expansion of their range. This study employed DNA barcoding to confirm the species identifications, assess population structure and trace the origins of these recently introduced populations. To