HydroBASINS lev08 watershed · #7080047620
Bassin de Gulf Intracoastal Waterway
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 : Lafayette, Vermilion
Sub-basin area
1 291,5km²
Upstream area
1 291,5km²
Discharge
24,1m³/s
Mean elev.
5m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Vermilion1175.3 km²91.1% of basin
- Lafayette113.2 km²8.8% of basin
3 intersecting protected areas
Palmetto Island
IUCN IIIState Park
5.22 km² overlap
Reserve Program
2.10 km² overlap
Reserve Program
1.97 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 645 distinct species · 153 182 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Gulf Intracoastal Waterway : 22 espèces reliées par 77 interactions GloBI sur 3 types (connectance 13.7%, filtre Serrano α=0.2). 12 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°
19,7°C
Annual rain
1 522mm
Moisture idx (CMI)
0,11
Runoff
730mm/an
PET
1 353mm
AET
1 188mm
Mean slope
0,2°
Water table
6cm
Forest
10%
Crops
54%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)