Ontologia

HydroBASINS lev08 watershed · #6080332160

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 2 administrative regions : Alto Amazonas, Loreto

2% lakePfafstetter: 62298390

Sub-basin area

161,1km²

Upstream area

283 369,2km²

Discharge

11 830,12m³/s

Mean elev.

122m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río Marañón317 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Pacaya Samiria

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    103.62 km² overlap

  • Pacaya - Samiria

    IUCN VI

    National Reserve

    103.62 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

33 distinct species · 38 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

38 obs · 3 cellules
Obs. / cellule
≥ 32
32–31
32–31
3–31
< 3

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Not enough documented interactions to build a meaningful graph for this territory.

Hydroclimate (BasinATLAS lev08)

Mean T°

26,7°C

Annual rain

1 984mm

Moisture idx (CMI)

0,13

Runoff

1 473mm/an

PET

1 731mm

AET

1 582mm

Mean slope

0,4°

Water table

14cm

Forest

93%

Crops

0%

Urban

0%

Protected

100%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)