Checklist and Distribution of Calanoida (Crustacea: Copepoda) in Kazakhstan (Central Asia)

This work aims to analyze the zoogeographic distribution of Calanoida in Kazakhstan. Kazakhstan belongs Palaearctic region, and its territory is ascribed European–Siberian Nagorno–Asian biogeographical subregions. The subregion includes Volga–Ural, Irtysh, Turkestan–Aral provinces. Balkhash province subregion. Studies fauna were carried out between 1997 2019. For this purpose, 7250 zooplankton samples taken 130 different water bodies. Findings 26 species have been documented. richest composition (20) Irtysh province. Ten recorded Volga–Ural province, 8 7 5 Ponto–Caspian region. richness order determined by a complex climatic factors, including density hydrographic network, variety hydrochemical conditions, accidental acclimatization species. Far Eastern (Sinodiaptomus sarsi, Neutrodiaptomus incongruens, Neodiaptomus schmackeri) entered inland bodies Kazakhstan, most likely through introduction non-native fish Black Sea Acartia tonsa Calanipeda aquaedulcis introduced into Caspian with ballast waters. Three autochthonous (Limnocalanus macrurus, Eurytemora grimmi, minor), formerly inhabiting Sea, can now be considered extinct. Acanthodiaptomus denticornis, Arctodiaptomus (R.) salinus, Phyllodiaptomus blanci, Eudiaptomus graciloides are widespread Endemic (Gigantodiaptomus irtyshensis, naurzumensis) new for (Diaptomus (Chaetodiaptomus) mirus, transylvanicus, dentifer, A. (Rh.) ulomskyi found small waterbodies; they known only from single occurrence sites as well caspica. last one was described northern part coastal zone. Further research that poorly studied may expand our knowledge diversity closest countries continental climate strongly differed subtropical Mediterranean types climates.