HydroBASINS lev08 watershed · #6080404940
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 15 administrative regions : Bolívar, Cajabamba, Corongo, Huacaybamba, Huaylas +10
Sub-basin area
9 228,9km²
Upstream area
21 686,5km²
Discharge
478,67m³/s
Mean elev.
3 238m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Yanayamo2352 km²
- Bassin de Río Marañón889 km²
15 dept-equivalent regions (GADM L2)
- Pataz2674.4 km²29.1% of basin
- 1705.7 km²18.6% of basin
- 1447.3 km²15.7% of basin
- 788.5 km²8.6% of basin
- 767.5 km²8.4% of basin
- 511.7 km²5.6% of basin
- 451.3 km²4.9% of basin
- Santiago de Chuco308.7 km²3.4% of basin
7 moreFull L2 list
- Mariscal Luzuriaga244.3 km² · 2.7%
- Cajabamba226.2 km² · 2.5%
- Huacaybamba48.4 km² · 0.5%
- Mariscal Cáceres11.4 km² · 0.1%
- Corongo3.0 km² · 0.0%
- Tocache1.0 km² · 0.0%
- Huaylas0.9 km² · 0.0%
5 intersecting protected areas
San Pedro de Chonta
IUCN Not ReportedRegional Conservation Area
51.85 km² overlap
del Río Abiseo
IUCN IINational Park
8.57 km² overlap
Bosques Secos del Marañón
IUCN VIRegional Conservation Area
7.17 km² overlap
Río Abiseo National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
7.02 km² overlap
Bosques de Shunté y Mishollo
IUCN VIRegional Conservation Area
0.53 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 066 distinct species · 11 402 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 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 : 8 espèces reliées par 10 interactions GloBI sur 2 types (connectance 18.2%, filtre Serrano α=0.2). 3 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°
11,4°C
Annual rain
866mm
Moisture idx (CMI)
-0,35
Runoff
681mm/an
PET
1 375mm
AET
711mm
Mean slope
23,8°
Water table
848cm
Forest
22%
Crops
19%
Urban
1%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)