1. Don State Technical University, Department “Biology and general pathology”, Gagarin Square 1, Rostov-on-Don 344003, Russia
2. Institute for Problems of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
3. Institute of Biodiversity and Ecosystem Research at the Bulgarian Academy of Sciences, Yurii Gagarin Street 2, Sofia 1113, Bulgaria
4. Caucasian State Nature Biosphere Reserve, Research Department, Sovetskaya Street 187, Maikop, Republic of Adygea 385000, Russia
5. I.D. Papanin Institute of the Biology of Inland Waters, Russian Academy of Sciences, Borok, Yaroslavl Region, 152742 Russia
6. Don State Technical University, Department of Electron and Light Microscopy, Gagarin Square 1, Rostov-on-Don 344003, Russia