MACROINVERTEBRATES THE FOOTHILL LAKES OF THE NORTHERN AND NORTHEASTERN ALTAI

Abstract

The taxonomic composition and abundance of benthic invertebrates in four lakes (Aya, Kireevo, Koksha and Svetloye) of the northern and northeastern Altai were studied in May, July and September 2022. 126 species from 9 classes of invertebrates were identifi ed in the macrozoobenthos of the studied lakes. Lakes Aya and Kireevo are characterized by low species diversity, abundance and biomass of benthic invertebrates. According to the composition and structure of communities of benthic invertebrates, lakes Aya and Kireevo were close to fl atland and low-mountain lakes. High taxonomic diversity and abundance of macroinvertebrates in lakes Koksha and Svetloye were noted. The bottom population of these lakes had features of both fl atland and mountain lakes.