Tízlábú rákfajok aktuális elterjedése a Balatonban és vízgyűjtőjén.

Several non-native crayfish species represent a particularly successful group of invasive species in freshwaters, hence their introduction poses one of the main threats to freshwater biodiversity and ecosystem functioning. Based on our research the noble crayfish (Astacus astacus) and the narrow-clawed crayfish (Pontastacus leptodactylus) occur as native species in Lake Balaton and its drainage basin. Besides three nonnative Decapoda species, the spiny-cheek crayfish (Faxonius limosus), the marbled crayfish (Procambarus virginalis), and the Australian redclaw crayfish (Cherax quadricarinatus) are known to be present in different habitats of Lake Balaton and its drainage basin. This study summarises historical and recent literature data along with own dataset in order to determine the current occurrence of crayfish species in the whole research area. [ABSTRACT FROM AUTHOR]