HydroBASINS lev08 watershed · #4080026350
Bassin · #4080026350
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 : North 24 Parganas, South 24 Parganas
Sub-basin area
750,1km²
Upstream area
750,1km²
Discharge
9,43m³/s
Mean elev.
3m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 351.4 km²47.0% of basin
- 318.5 km²42.6% of basin
2 intersecting protected areas
Sundarban Wetland
IUCN IaWetland of International Importance (Ramsar Site)
219.44 km² overlap
Sundarbans National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
108.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
777 distinct species · 45 428 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 · #4080026350 : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 3 types (connectance 11.7%, 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°
26,2°C
Annual rain
1 668mm
Moisture idx (CMI)
0,14
Runoff
931mm/an
PET
1 440mm
AET
957mm
Mean slope
0,1°
Water table
5cm
Forest
21%
Crops
60%
Urban
48%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)