HydroBASINS lev08 watershed · #1081417460
Bassin de Catchila
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 : Matala, Tchipungo
Sub-basin area
416,6km²
Upstream area
6 011,7km²
Discharge
20,18m³/s
Mean elev.
1 299m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mutantola873 km²
- Bassin de Calonga504 km²
2 dept-equivalent regions (GADM L2)
- 301.3 km²72.6% of basin
- 113.8 km²27.4% of basin
1 intersecting protected areas
Bicuar National Park
IUCN IINational Park
152.97 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
195 distinct species · 232 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 Catchila : 9 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 0 bulles famille, 8 interactions GloBI documentées sur 1 type (connectance 22.2%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
20,6°C
Annual rain
865mm
Moisture idx (CMI)
-0,51
Runoff
88mm/an
PET
1 768mm
AET
731mm
Mean slope
0,9°
Water table
283cm
Forest
18%
Crops
0%
Urban
0%
Protected
63%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)