HydroBASINS lev08 watershed · #2080339690
Bassin de Верацейка
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 7 administrative regions across 2 countries : Białystok, Byerastavitsa, Hrodna, Masty, Sokółka +2
Sub-basin area
1 740,1km²
Upstream area
1 740,3km²
Discharge
9,9m³/s
Mean elev.
154m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 724.7 km²41.5% of basin
- 331.7 km²19.0% of basin
- 202.7 km²11.6% of basin
- 142.6 km²8.2% of basin
- 133.0 km²7.6% of basin
- 117.5 km²6.7% of basin
- 95.2 km²5.4% of basin
7 intersecting protected areas
Wzgórza Sokólskie
IUCN Not AssignedProtected Landscape Area
239.38 km² overlap
Puszcza Knyszyńska
IUCN Not ReportedSpecial Protection Area (Birds Directive)
193.10 km² overlap
Ostoja Knyszyńska
IUCN Not ReportedSite of Community Importance (Habitats Directive)
186.19 km² overlap
Berastavitski
IUCN IVNature Sanctuary or Partial Reserve
83.89 km² overlap
Landscape Park
10.69 km² overlap
Nietupa
IUCN IVNature Reserve
2.74 km² overlap
Łosiniany
IUCN Not AssignedNature Reserve
0.61 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
857 distinct species · 8 953 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Верацейка : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 3 types (connectance 15.3%, filtre Serrano α=0.2). 7 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°
6,7°C
Annual rain
591mm
Moisture idx (CMI)
-0,18
Runoff
179mm/an
PET
720mm
AET
499mm
Mean slope
1,2°
Water table
132cm
Forest
18%
Crops
49%
Urban
0%
Protected
19%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)