Distribution of rheophil benthos in the mountainous rivers of Tuva with subaerial deltas

The formation and distribution of the benthos population of amphibiotic insects, mainly mayflies (Ephemeroptera) and stoneflies (Plecoptera), inhabiting minor rivers with subaerial deltas have been studied in Central Tuva as an example. It has been revealed that the life of biota, first and foremost benthos, is a complex combination of migration processes, drift, and redrift of the unevenly aged larva of amphibiotic insects, which demonstrate a certain seasonal confinement to various parts of these rivers along their channels coinciding with the seasonal dynamics of watering and food capacity.