Table 3.
Taxonomic structure of macrozoobenthos of the studied small rivers.
| River | Ol * | Hi | Ml | Cr | Ep | Od | He | Tr | Co | Ch | Di | Others | In Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Volga River basin | |||||||||||||
| Solenaya Kuba | 9 | 3 | 6 | 2 | 2 | 2 | 6 | 6 | 1 | 29 | 6 | - | 72 |
| Bizyuk | 6 | 1 | 4 | 1 | 2 | 2 | 4 | 2 | 9 | 17 | 1 | 1 | 50 |
| Tarlyk | 9 | 3 | 8 | 6 | 2 | 1 | 3 | 3 | 1 | 25 | 2 | 2 | 65 |
| Yama 1 | 5 | - | 1 | 1 | 2 | 1 | 2 | - | 1 | 15 | 2 | - | 30 |
| Zhidkaya Solyanka | 8 | - | 3 | - | 2 | - | 2 | - | - | 18 | - | 1 | 34 |
| Kuba | 5 | - | - | 1 | 3 | 1 | 1 | 2 | 2 | 16 | 3 | 1 | 35 |
| Vodyanka | 7 | - | - | - | 1 | 2 | 1 | 3 | 3 | 19 | 3 | - | 39 |
| Otrozhina | 5 | 2 | 2 | 2 | 2 | 1 | 5 | 3 | 2 | 27 | 4 | 1 | 56 |
| Solyanka 2 | 2 | - | - | 1 | 1 | 1 | 1 | - | 1 | 13 | 3 | 1 | 24 |
| Yama | 7 | 1 | 1 | 1 | 2 | 1 | 2 | - | 3 | 18 | 1 | - | 37 |
| Solyanka 3 | 3 | - | - | 1 | - | 1 | - | - | 2 | 14 | 2 | - | 23 |
| Gorkaya | 4 | - | 1 | - | - | 1 | - | - | 1 | 17 | - | 2 | 26 |
| Kochetnaya | 2 | 3 | 3 | 3 | 2 | 3 | 6 | - | 3 | 16 | 6 | 2 | 49 |
| Solyanka 1 | 3 | - | - | - | - | - | - | - | 4 | 16 | 1 | - | 24 |
| Gashon | 3 | - | - | - | 2 | - | 2 | - | - | 12 | - | - | 19 |
| Lake Elton basin | |||||||||||||
| Chernavka | - | - | - | - | - | - | 1 | - | 3 | 2 | 2 | - | 8 |
| Solyanka | - | - | - | - | - | - | 1 | - | 1 | 2 | 2 | - | 6 |
* Ol—Oligochaeta, Hi—Hirudinea, Ml—Mollusca, Cr—Crustacea, Ep—Ephemeroptera, Od—Odonata, He—Heteroptera, Pl—Plecoptera, Tr—Trichoptera, Co—Coleoptera, Ch—Chironomidae, and Di—other Diptera; others—Arachnida, Megaloptera, and Lepidoptera.