HydroBASINS lev08 watershed · #6080922550
Bassin de Río Trocomán
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 3 administrative regions across 2 countries : Bío-Bío, Minas, Ñorquín
Sub-basin area
2 031,6km²
Upstream area
2 031,7km²
Discharge
41,62m³/s
Mean elev.
1 720m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1748.9 km²86.0% of basin
- 277.0 km²13.6% of basin
- 6.6 km²0.3% of basin
3 intersecting protected areas
Corredor Nevados de Chillán- Laguna del Laja
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
5.18 km² overlap
Copahue Caviahue
IUCN IIProvincial Park
1.64 km² overlap
Ñuble
IUCN Not ReportedNational Reserve
0.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
329 distinct species · 1 276 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Río Trocomán : 26 espèces reliées par 46 interactions GloBI sur 4 types (connectance 7.3%, filtre Serrano α=0.2). 10 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°
7,4°C
Annual rain
897mm
Moisture idx (CMI)
-0,17
Runoff
695mm/an
PET
1 095mm
AET
585mm
Mean slope
13,3°
Water table
629cm
Forest
13%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)