HydroBASINS lev08 watershed · #7080046930
Bassin de Mississippi River-Gulf Outlet
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 : Saint Bernard
Sub-basin area
105,1km²
Upstream area
105,1km²
Discharge
2,28m³/s
Mean elev.
3m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 104.9 km²99.9% of basin
3 intersecting protected areas
State Wild or Scenic River
0.15 km² overlap
Pirogue Bayou
IUCN VState Wild or Scenic River
0.06 km² overlap
Terre Beau Bayou
IUCN VState Wild or Scenic River
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
215 distinct species · 3 244 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Mississippi River-Gulf Outlet : 30 espèces reliées par 86 interactions GloBI sur 4 types (connectance 9.5%, filtre Serrano α=0.2). 13 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°
20,2°C
Annual rain
1 553mm
Moisture idx (CMI)
0,12
Runoff
686mm/an
PET
1 363mm
AET
1 184mm
Mean slope
0,2°
Water table
7cm
Forest
83%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)