| Site | Fisher’s test | Student’s test | ||||
| Calculated value | Critical value | Result | Calculated value | Critical value | Result | |
| Luga-Tolmachevo | 2.717 | 2.098 | non-homogeneous | 3.699 | 2.467 | non-homogeneous |
| Onega-Turchasovo | 1.499 | 2.253 | homogeneous | 0.768 | 2.222 | homogeneous |
| Northern Dvina-Kotlas | 2.984 | 2.064 | non-homogeneous | 3.783 | 2.289 | non-homogeneous |
| Mezen’-Marakaib | 2.170 | 2.074 | non-homogeneous | 3.227 | 2.325 | non-homogeneous |
| Mezen’-Malonisogorskaya | 1.001 | 2.099 | homogeneous | 1.165 | 2.014 | homogeneous |
| Pechora-Ust’-Unya | 5.769 | 2.080 | non-homogeneous | 2.221 | 2.047 | non-homogeneous |
| Pechora-Troitsko-Pechorsk | 1.889 | 2.076 | homogeneous | 1.413 | 2.017 | homogeneous |
| Volga-V.Lebyazhye | 1.323 | 1.878 | homogeneous | 0.239 | 2.042 | homogeneous |
| Samara-Elshanka | 1.553 | 1.938 | homogeneous | 5.790 | 2.631 | non-homogeneous |
| Ural-Verkhneuralsk | 1.986 | 2.492 | homogeneous | 7.564 | 4.147 | non-homogeneous |
| Ob’-Kamen-na-Obi | 1.341 | 2.469 | homogeneous | 3.485 | 2.645 | non-homogeneous |
| Ob’-Oktyabrskoye | 2.969 | 2.265 | non-homogeneous | 3.258 | 2.564 | non-homogeneous |
| Ob’-Salekhard | 1.370 | 2.170 | homogeneous | 2.313 | 2.222 | non-homogeneous |
| Biya-Biysk | 2.399 | 2.043 | non-homogeneous | 4.310 | 2.956 | non-homogeneous |
| Tom’-Tomsk | 1.448 | 1.879 | homogeneous | 0.080 | 2.178 | homogeneous |
| Yenisei-Kyzyl | 1.869 | 3.120 | homogeneous | 3.364 | 3.572 | homogeneous |
| Yenisei-Selivanikha | 2.161 | 2.740 | homogeneous | 0.853 | 2.040 | homogeneous |
| Lena-Macha | 1.226 | 2.051 | homogeneous | 1.511 | 2.203 | homogeneous |
| Lena-Sangari | 1.645 | 2.827 | homogeneous | 6.071 | 3.995 | non-homogeneous |
| Lena-Kyusyur | 3.557 | 3.453 | non-homogeneous | 6.882 | 4.863 | non-homogeneous |
| Barguzin-Mogoito | 1.025 | 1.886 | homogeneous | 0.348 | 2.265 | homogeneous |
| Shilka-Sretensk | 1.043 | 1.974 | homogeneous | 0.804 | 2.200 | homogeneous |
| Kolyma-Zyryanka | 1.263 | 1.980 | homogeneous | 1.163 | 2.438 | homogeneous |