The features of structural indices of bottom communities in mouth of saline rivers (the basin of lake Elton)

There are given the results of hydrophysical, hydrochemical and hydrobiological researches of the small rivers of Lake Elton (the Khara, the Lantsug, the Chernavka rivers) in contact area: river-lake. The characteristics of species composition, structural indices and long-term dynamics of macrozoobenthos communities in the gradient of abiotic factors are presented. Changes in the structure of benthic communities in the estuaries of the contact zone of river-lake appear in salty rivers increase in abundance and biomass of benthos (the Khara, the Chernavka).