HydroBASINS lev08 watershed · #2080320280
Bassin de Nemunas
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 : Alytaus, Lazdijų, Prienų, Varėnos
Sub-basin area
941,6km²
Upstream area
42 067,7km²
Discharge
259,11m³/s
Mean elev.
119m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nemunas510 km²
- Bassin de Merkys335 km²
4 dept-equivalent regions (GADM L2)
- 651.1 km²68.8% of basin
- 168.7 km²17.8% of basin
- 77.6 km²8.2% of basin
- 48.3 km²5.1% of basin
30 intersecting protected areas
Dzūkijos nacionalinis parkas
IUCN IIState Park
124.05 km² overlap
Dainavos giria
IUCN Not ReportedSpecial Protection Area (Birds Directive)
110.76 km² overlap
Dainavos giria
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
110.73 km² overlap
State Park
89.43 km² overlap
Punios šilas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
26.93 km² overlap
Nemuno kilpos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.88 km² overlap
Nemunas tarp Pelėšiškių ir Balbieriškio
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.00 km² overlap
Nature Reserve
3.88 km² overlap
Vidzgirio miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.87 km² overlap
21 more protected areassorted by overlap area
Alovės apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.77 km² overlap
Ilgininkų apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.68 km² overlap
Kalesninkų ir Užukalnių apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.31 km² overlap
Nature Reserve
2.97 km² overlap
Nature Reserve
2.67 km² overlap
Nature Reserve
2.43 km² overlap
Norūnų miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.43 km² overlap
Vizdijos upės slėnis
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.46 km² overlap
Nature Reserve
0.80 km² overlap
Kučiuliškės-Drapalių apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.75 km² overlap
Nature Reserve
0.73 km² overlap
Nature Reserve
0.69 km² overlap
Stračiūnų apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.60 km² overlap
Kučiuliškės-Drapalių apylinkės II
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.57 km² overlap
Nature Reserve
0.55 km² overlap
Nature Reserve
0.45 km² overlap
Sabališkių miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.45 km² overlap
Nature Reserve
0.36 km² overlap
Taukotiškių pievos
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.18 km² overlap
Nature Reserve
0.15 km² overlap
Margų kaimo apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 938 distinct species · 23 092 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 Nemunas : 16 espèces reliées par 28 interactions GloBI sur 2 types (connectance 13.3%, 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°
6,2°C
Annual rain
619mm
Moisture idx (CMI)
-0,11
Runoff
193mm/an
PET
693mm
AET
510mm
Mean slope
1,7°
Water table
166cm
Forest
37%
Crops
38%
Urban
3%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)