title: Alien species of fish in freshwater ichthyofauna of the Crimea
abstract: Overview of changes that occurred in the inland waters of the Crimea is presented, and the introduction and naturalization of alien fish species, associated with this process, is studied. Approximately 55 new fish species were registered in the last 70 years in rivers, reservoirs, canals, and ponds of the peninsula. They can be attributed to four groups according to their abundance: (1) their findings are single, (2) they lived in the waters during several decades and disappeared over a given pe
journal: Russian Journal of Biological Invasions