Potential Nonnative Species among Aquatic Invertebrates in the Freshwater Ecosystems of Belarus

The problem of biological invasions is currently one of the most significant and well-recognized ones in light of influence on biodiversity across all ecosystems. To examine which new species may be introduced and established in the aquatic ecosystems of Belarus in the near future (5–10 years), an evaluation of the ranges, the vectors of invasion, and the biology of potential invaders was made. Of the 89 potentially nonnative species, only 32 were included in the list of the most probable alien species which are most likely to inhabit Belarusian waters in the near future. In addition, seven species with high capacity for invasion were singled out from the list of the potential alien species.