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. 2023 Sep 21;12(9):1271. doi: 10.3390/biology12091271

Table 1.

Characteristics of the investigated small rivers in the southern arid region of the East European Plain.

No River Stream Order Coordinates
of the River
Mouth, N, E
Catchment
Area, km2
Length, km Average Stream Slope, ‰ Current
Velocity, m s−1
Salinity
Min−Max, g L−1
Salinity Class Salinity
Average g L−1
Dissolved O2,
mg L−1
pH
Volga River basin
1 Solenaya Kuba 2 50°47′, 46°66′ 2.03 98 0.56 0.005 0.38–3.96 hypohaline–oligohaline 1.94 8.7 8.01
2 Bizyuk 2 50°74′, 46°46′ 0.71 54 1.08 0.005 0.27–0.43 hypohaline 0.33 6.5 8.28
3 Tarlyk 1 51°01′, 46°15′ 0.63 51 1.59 0.03 0.27–0.61 hypohaline–oligohaline 0.42 4.6 8.1
4 Yama 1 2 50°19′, 46°26′ 0.38 39 0.56 0.005 0.18–0.41 hypohaline 0.3 8.3 8.3
5 Zhidkaya Solyanka 2 50°79′, 47°04′ 0.39 39 0.67 0.005 0.27–0.47 hypohaline 0.34 8.2 8.5
6 Kuba 2 50°19′, 46°25′ 0.36 37 0.62 0.005 0.87–1.2 oligohaline 0.93 6.7 8.08
7 Vodyanka 2 50°12′, 47°12′ 0.25 30 0.84 0.005 0.19–0.29 hypohaline 0.48 6.5 8.0
8 Otrozhina 2 50°46′, 46°73′ 0.20 27 0.77 0.004 0.56–16 oligohalinemesohaline 7.8 9.0 8.8
9 Solyanka 2 3 50°76′, 46°97′ 0.20 27 1.11 0.005 0.52–0.56 oligohaline 0.54 7.2 9.0
10 Yama 2 50°97′, 47°14′ 0.13 21 0.75 0.005 0.27–0.39 hypohaline 0.35 8.1 8.06
11 Solyanka 3 2 50°13′, 46°20′ 0.12 20 0.68 0.005 0.38–0.52 hypohaline–oligohaline 0.45 5.6 8.05
12 Gorkaya 2 50°35′, 46°54′ 0.07 16 0.84 0.005 0.41–1.14 hypohaline–oligohaline 0.89 8.6 8.4
13 Kochetnaya 1 52°15′, 50°78′ 0.06 14 1.97 0.01 0.53–1.1 oligohaline 0.82 7.7 7.0
14 Solyanka 1 2 50°47′, 46°53′ 0.06 14 1.21 0.005 4.12–4.34 oligohaline 4.22 8.8 8.8
15 Gashon 2 50°97′, 46°91′ 0.05 13 1.51 0.005 0.42–0.8 hypohaline–oligohaline 0.56 6.1 8.1
Lake Elton basin
16 Solyanka 1 49°10′, 46°35′ 0.018 6.7 5.52 0.12 28–30 polyhaline 28.7 12.6 7.5
17 Chernavka 1 49°12′, 46°40′ 0.018 5.2 5.38 0.23 28–30 polyhaline 28.5 8.2 7.2