Fauna of the Pivka Intermittent Lakes

Prispevek opisuje vodno favno presihajocih Pivskih jezer. Zaradi presihajocega znacaja jezer so bili na tem obmocju najdeni zanimivi predstavniki nižjih rakov, predvsem iz skupin skrgonožcev (Anostraca), vodnih bolh(Cladocera) ter ceponožcev (Copepoda). Petelinjsko jezero je edini kraj na svetu, kjer se lahko najdemo endemne rakce vrste Chirocephalus croaticus . Vrsti ceponožnih rakov Diaptomus cyaneus in Diacyclops Charon sta relativno pogosti vrsti v Evropi, vendar sta Petelinjsko in Veliko Drskovsko jezero v Sloveniji trenutno edini znani nahajalisci obeh vrst. Vrste so ogrožene zaradi unicevanja njihovih naravnih habitatov. The present contribution deals with aquatic fauna of the Pivka intermittent lakes. Due to their intermittent character some interesting crustaceans from the groups of fairy shrimps (Anostraca), water fleas (Cladocera) and copepods (Copepoda) are found there. Petelinjsko jezero is the only known location in the world for the endemic species Chirocephalus croaticus. Copepod species Diaptomus cyaneus and Diacyclops charon are relatively abundant in Europe, but Petelinjsko jezero and Veliko Drskovsko jezero are the only two locations known in Slovenia for both species. All the species are threatened due to destruction of their natural habitats.