The longitudinal pattern of crustacean (Peracarida, Malacostraca) assemblages in a large south European river: bank reinforcement structures as stepping stones of invasion
Distribution of 14 Peracarida species (5 native and 9 alien) along entire course of the Sava River was established: only natives inhabited the upper third of Sava and aliens dominated the rest of the course. Artificial stony substrates act as stepping stones of invasion for alien peracarids and largely contribute to their success in large lowland rivers.