其他摘要：In frames of the monitoring and inventory research of the crayfish populations in Slovakia, individual catchments and orographic units were searched for the presence of crayfish species. In mountain areas of Western Slovakia (Biele Karpaty Mts and Myjavská pahorkatina highlands), several new sites of crayfish were occurrence were found and existing ones were confirmed. Analysis of population structure revealed improper age structure at some sites with missing young generations of crayfish. No invasive crayfish species were reported in the region.
