HydroBASINS lev08 watershed · #2080330310
Bassin de Нёман / 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 2 administrative regions across 2 countries : Hrodna, Lazdijų
Sub-basin area
40,1km²
Upstream area
35 848,1km²
Discharge
219,43m³/s
Mean elev.
106m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Marycha655 km²
- Bassin de Нёман4 km²
2 dept-equivalent regions (GADM L2)
- 29.8 km²73.8% of basin
- 10.5 km²26.2% of basin
5 intersecting protected areas
Gozhevskiy
IUCN IVNature Sanctuary or Partial Reserve
9.15 km² overlap
Sopotskinskiy
IUCN IVNature Sanctuary or Partial Reserve
1.58 km² overlap
Pertako apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.06 km² overlap
Nature Reserve
0.14 km² overlap
Baltosios Ančios apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
86 distinct species · 157 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Нёман / Nemunas : 20 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 48 interactions GloBI sur 5 types (connectance 12.7%, filtre Serrano α=0.2). 8 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°
6,6°C
Annual rain
587mm
Moisture idx (CMI)
-0,17
Runoff
183mm/an
PET
706mm
AET
495mm
Mean slope
1,4°
Water table
98cm
Forest
97%
Crops
5%
Urban
0%
Protected
27%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)