Features of naturalization, ecology and allocation of Benthophilus stellatus (Sauvage, 1874) – an invasive species of Cheboksary reservoir

Based on materials in period from 2003 to 2018 years, the history of invasion, ecology, allocation and some biology features of the Stellate tadpole-goby in the Cheboksary reservoir are considered. A brief biological characteristic of its age and size-weight indicators, features of the distribution of the species and the dynamics of relative abundance in the temporal and spatial aspects are given.