HydroBASINS lev08 watershed · #6080323580
Bassin de Río Marañón
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 : Loreto
Sub-basin area
1 460km²
Upstream area
306 093,3km²
Discharge
13 730,36m³/s
Mean elev.
115m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Marañón788 km²
- Bassin de Trigrillo56 km²
3 intersecting protected areas
Pacaya - Samiria
IUCN VINational Reserve
576.52 km² overlap
Pacaya Samiria
IUCN Not ReportedWetland of International Importance (Ramsar Site)
576.52 km² overlap
El Guacamayo Conservation concession
IUCN Not ApplicableConservation concession
2.73 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
400 distinct species · 980 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Marañón : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 3 types (connectance 5.0%, 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°
26,5°C
Annual rain
2 400mm
Moisture idx (CMI)
0,28
Runoff
1 781mm/an
PET
1 737mm
AET
1 686mm
Mean slope
0,4°
Water table
8cm
Forest
95%
Crops
0%
Urban
0%
Protected
76%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)