HydroBASINS lev08 watershed · #1081337830
Bassin de Longa
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 : Muxima, Porto Amboim
Sub-basin area
1 820,5km²
Upstream area
19 844,2km²
Discharge
187,64m³/s
Mean elev.
70m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Cazela1698 km²
- Bassin de Longa85 km²
2 dept-equivalent regions (GADM L2)
- Porto Amboim948.9 km²52.3% of basin
- 864.3 km²47.7% of basin
1 intersecting protected areas
Quiçãma National Park
IUCN IINational Park
819.86 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
69 distinct species · 180 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 de Longa : 18 espèces reliées par 23 interactions GloBI sur 3 types (connectance 9.1%, filtre Serrano α=0.2). 5 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°
24,2°C
Annual rain
631mm
Moisture idx (CMI)
-0,55
Runoff
153mm/an
PET
1 405mm
AET
535mm
Mean slope
2,0°
Water table
266cm
Forest
1%
Crops
1%
Urban
0%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)