HydroBASINS lev08 watershed · #3080545420
Bassin de Окунайка
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 2 administrative regions : Kazachinsko-Lenskiy rayon, Severobaykal'skiy
Sub-basin area
2 235,6km²
Upstream area
2 235,7km²
Discharge
26,84m³/s
Mean elev.
934m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Kazachinsko-Lenskiy rayonIrkutsk · Russia2166.0 km²96.4% of basin
- 80.3 km²3.6% of basin
2 intersecting protected areas
Lebedinye ozera (Okunajskij)
IUCN IVState Natural Zakaznik
1840.64 km² overlap
Lake Baikal
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
1.94 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
154 distinct species · 328 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Окунайка : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 3 types (connectance 8.1%, filtre Serrano α=0.2). 5 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°
-5,8°C
Annual rain
431mm
Moisture idx (CMI)
-0,19
Runoff
374mm/an
PET
546mm
AET
360mm
Mean slope
11,4°
Water table
299cm
Forest
56%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)