HydroBASINS lev08 watershed · #3080091190
Bassin de Сёяха
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Yamal'skiy rayon
Sub-basin area
1 561,9km²
Upstream area
4 732,1km²
Discharge
45,14m³/s
Mean elev.
18m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Идъяха537 km²
- Bassin de Сеяха246 km²
1 dept-equivalent regions (GADM L2)
- 1573.5 km²100.0% of basin
1 intersecting protected areas
YAmal`skij
IUCN IVState Natural Zakaznik
293.68 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
218 distinct species · 374 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Bassin de Сёяха : 22 espèces reliées par 73 interactions GloBI sur 2 types (connectance 11.0%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-8,9°C
Annual rain
266mm
Moisture idx (CMI)
0,04
Runoff
275mm/an
PET
256mm
AET
211mm
Mean slope
2,5°
Water table
60cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)