Novichkova A.A., Chertoprud E.S. 2022. The species structure, biogeographical status, and the relation to the Beringian fauna of microcrustaceans (Cladocera, Copepoda) of the Magadan Area (Far East, Russia) // Arthropoda Selecta. Vol.31. No.3: 283–292 [in English].
Department of General Ecology and Hydrobiology, Biological Faculty, M.V. Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia. E-mail: anna.hydro@gmail.com
doi: 10.15298/arthsel. 31.3.03
ABSTRACT. Zooplankton communities of the continental waters of Eastern Siberia and especially the Magadan Area of Russia are among the least studied. The aim of this study is to provide an inventory of the freshwater microcrustaceans of this remote area and to analyse the community structure in the studied water bodies with the goal to reveal certain environmental factors affecting it. In total, we identified 59 species of microcrustaceans (Cladocera and Copepoda). Nine of these crustaceans are new records for the region, a single taxon represents an undescribed species new for science. The number of species varies by locality — from 32 in the Ola River Basin to 40 in the Yana River Basin. The differences in the structure of the Cladocera and Copepoda fauna in three different areas of the Magadan Area could be explained by their geographical location and the related climatic, hydrological, hydrochemical and phytocenotic features of the environment. In addition to the widespread Holarctic and Palearctic species, a considerable number of “Beringian” endemics (14 species) with eastern Asian – North American and East Asia distributions are found.
KEY WORDS: Cladocera; Copepoda; freshwater; Beringia; environmental factors.