HydroBASINS lev08 watershed · #4080025320
Bassin · #4080025320
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 : Feni, Noakhali
Sub-basin area
55,3km²
Upstream area
55,3km²
Discharge
3,64m³/s
Mean elev.
6m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- FeniChittagong · Bangladesh41.1 km²74.5% of basin
- NoakhaliChittagong · Bangladesh7.4 km²13.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
191 distinct species · 3 170 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 · #4080025320 : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 3 types (connectance 17.0%, 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°
25,7°C
Annual rain
2 800mm
Moisture idx (CMI)
0,51
Runoff
2 098mm/an
PET
1 385mm
AET
1 054mm
Mean slope
0,2°
Water table
9cm
Forest
0%
Crops
70%
Urban
21%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)