HydroBASINS lev08 watershed · #4080995900
Bassin de Hooghly
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 : Haora, South 24 Parganas
Sub-basin area
247,3km²
Upstream area
28 831,4km²
Discharge
655,01m³/s
Mean elev.
6m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de DVC Canal536 km²
- Bassin de Hooghly446 km²
2 dept-equivalent regions (GADM L2)
- 169.1 km²68.6% of basin
- Haora77.6 km²31.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
763 distinct species · 41 315 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Hooghly : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 3 types (connectance 8.7%, 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°
26,4°C
Annual rain
1 628mm
Moisture idx (CMI)
0,05
Runoff
866mm/an
PET
1 546mm
AET
997mm
Mean slope
0,3°
Water table
14cm
Forest
0%
Crops
42%
Urban
100%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)