HydroBASINS lev08 watershed · #2080347450
Bassin de Supraśl
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 4 administrative regions : Białystok, Białystok (City), Mońki, Sokółka
Sub-basin area
1 831,5km²
Upstream area
1 831,5km²
Discharge
9,6m³/s
Mean elev.
160m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1150.2 km²62.5% of basin
- 597.9 km²32.5% of basin
- 91.0 km²4.9% of basin
- 0.0 km²0.0% of basin
30 intersecting protected areas
Puszcza Knyszyńska
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1079.88 km² overlap
Ostoja Knyszyńska
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1018.61 km² overlap
Landscape Park
644.95 km² overlap
Wzgórza Sokólskie
IUCN Not AssignedProtected Landscape Area
59.20 km² overlap
Dolina Narwi
IUCN Not AssignedProtected Landscape Area
13.99 km² overlap
Rabinówka
IUCN IVNature Reserve
6.58 km² overlap
Jesionowe Góry
IUCN IVNature Reserve
3.77 km² overlap
Las Cieliczański
IUCN IVNature Reserve
3.72 km² overlap
Budzisk
IUCN IVNature Reserve
3.41 km² overlap
21 more protected areassorted by overlap area
Taboły
IUCN IVNature Reserve
3.04 km² overlap
Bahno w Borkach
IUCN IVNature Reserve
2.91 km² overlap
Jałówka
IUCN IVNature Reserve
2.76 km² overlap
Stare Biele
IUCN IVNature Reserve
2.57 km² overlap
Międzyrzecze
IUCN IVNature Reserve
2.51 km² overlap
Chomontowszczyzna
IUCN IVNature Reserve
2.35 km² overlap
Krzemianka
IUCN IVNature Reserve
2.31 km² overlap
Góra Pieszczana
IUCN IVNature Reserve
2.21 km² overlap
Woronicza
IUCN IVNature Reserve
1.40 km² overlap
Kozłowy Ług
IUCN IVNature Reserve
1.39 km² overlap
Surażkowo
IUCN IVNature Reserve
1.37 km² overlap
Bartoszycha
IUCN Not AssignedNature Reserve
0.94 km² overlap
Łazarz
IUCN Not AssignedNature Reserve
0.89 km² overlap
Krasne
IUCN IVNature Reserve
0.85 km² overlap
Starodrzew Szyndzielski
IUCN IVNature Reserve
0.80 km² overlap
Krzemienne Góry
IUCN IVNature Reserve
0.79 km² overlap
Antoniuk
IUCN IVNature Reserve
0.70 km² overlap
Las Zwierzyniecki
IUCN IVNature Reserve
0.34 km² overlap
Stara Dębina
IUCN IVNature Reserve
0.33 km² overlap
Jezioro Wiejki
IUCN IVNature Reserve
0.22 km² overlap
Gorbacz
IUCN IVNature Reserve
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 610 distinct species · 114 796 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Supraśl : 25 espèces reliées par 68 interactions GloBI sur 5 types (connectance 13.7%, 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
581mm
Moisture idx (CMI)
-0,18
Runoff
165mm/an
PET
710mm
AET
491mm
Mean slope
1,5°
Water table
185cm
Forest
48%
Crops
22%
Urban
7%
Protected
40%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)