HydroBASINS lev08 watershed · #4080026490
Bassin · #4080026490
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 1 administrative regions : South 24 Parganas
Sub-basin area
320km²
Upstream area
320km²
Discharge
9,66m³/s
Mean elev.
3m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 275.6 km²86.4% of basin
1 intersecting protected areas
Sundarban Wetland
IUCN IaWetland of International Importance (Ramsar Site)
97.38 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
165 distinct species · 1 938 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 · #4080026490 : 17 espèces reliées par 28 interactions GloBI sur 3 types (connectance 11.1%, filtre Serrano α=0.2). 6 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 626mm
Moisture idx (CMI)
0,18
Runoff
960mm/an
PET
1 339mm
AET
902mm
Mean slope
0,1°
Water table
4cm
Forest
13%
Crops
92%
Urban
7%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)