HydroBASINS lev08 watershed · #5080116340
Bassin de Marikina River
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 9 administrative regions : Antipolo City, Marikina, Norzagaray, Pasig City, Quezon City +4
Sub-basin area
551,7km²
Upstream area
551,7km²
Discharge
27,53m³/s
Mean elev.
313m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- 213.0 km²38.7% of basin
- 187.2 km²34.1% of basin
- San Mateo57.3 km²10.4% of basin
- 29.3 km²5.3% of basin
- 19.7 km²3.6% of basin
- 16.7 km²3.0% of basin
- 12.9 km²2.3% of basin
- San Jose del Monte CityBulacan · Philippines11.7 km²2.1% of basin
1 moreFull L2 list
- Norzagaray1.9 km² · 0.4%
5 intersecting protected areas
Protected Landscape
250.45 km² overlap
Wildlife Sanctuary
83.34 km² overlap
Angat (Pilot) Watershed and Forest Range
IUCN Not AssignedWatershed and Forest Range
6.24 km² overlap
Protected Landscape
6.09 km² overlap
Angat (Metro Water District) Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
1.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 403 distinct species · 44 859 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Marikina River : 19 espèces reliées par 31 interactions GloBI sur 4 types (connectance 8.2%, filtre Serrano α=0.2). 9 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°
25,5°C
Annual rain
2 918mm
Moisture idx (CMI)
0,49
Runoff
1 574mm/an
PET
1 478mm
AET
1 265mm
Mean slope
11,1°
Water table
372cm
Forest
15%
Crops
26%
Urban
41%
Protected
67%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)