Rivière· 123 segments
Свияга
Crosses 11 administrative regions : Apastovskiy rayon, Buinskiy rayon, Kuzovatovskiy rayon, Maynskiy rayon, Teren'gul'skiy rayon +6
Total length
437km
Max discharge
66,5m³/s
Max Strahler
5
Segments matched
123
River geography11 admin regions · 0 communes
11 administrative regions crossed (GADM L2)
- Kuzovatovskiy rayonUl'yanovsk · Russia144.2 kmin this dpt
- Buinskiy rayonTatarstan · Russia103.0 kmin this dpt
- Ul'yanovskiy rayonUl'yanovsk · Russia102.7 kmin this dpt
- Zelenodol'skiy rayonTatarstan · Russia68.9 kmin this dpt
- Apastovskiy rayonTatarstan · Russia60.9 kmin this dpt
- Verkhneuslonskiy rayonTatarstan · Russia31.5 kmin this dpt
- Tetyushskiy rayonTatarstan · Russia31.2 kmin this dpt
- Ul'yanovskUl'yanovsk · Russia19.9 kmin this dpt
- Tsil'ninskiy rayonUl'yanovsk · Russia6.3 kmin this dpt
- Maynskiy rayonUl'yanovsk · Russia5.1 kmin this dpt
- Teren'gul'skiy rayonUl'yanovsk · Russia0.6 kmin this dpt
19 intersecting protected areas
Great Volzhsko-Kamsky
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
Reka Sviyaga
IUCN IIINatural Monument
Sviyazhskij
IUCN IVState Natural Zakaznik
Sviyazhsky / Great Volzhsko-Kamsky (part of)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
Zeya bujlary
IUCN IVState Natural Zakaznik
Petrov ugol
IUCN IIINatural Monument
Landscape Park
Starica Sviyagi
IUCN IIINatural Monument
Reka Ulema
IUCN IIINatural Monument
10 more protected areassorted by area
Reka Birlya
IUCN IIINatural Monument
Natural Monument
Reka Sulica
IUCN IIINatural Monument
Pojmy rek Sviyagi i Kubni
IUCN IIINatural Monument
Gornyj sosnyak
IUCN IIINatural Monument
Ecological and Recreational Zone
Ust`e reki Kil`ny
IUCN IIINatural Monument
Natural Monument
PKO Vinnovskaya roshha
IUCN Not ReportedLandscape Park
Park imeniya dekabrista V.G. Ivasheva
IUCN Not ReportedNatural Monument
1 page = 1 named river (aggregation of 123 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
7 distinct species · 7 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 2 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Свияга : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
437km
Max discharge
66,5m³/s
Max Strahler
5
Segments matched
123
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.