HydroBASINS lev08 watershed · #6080017560
Bassin de Ría de Ajó
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 6 administrative regions : General Juan Madariaga, General Lavalle, La Costa, Mar Chiquita, Pinamar +1
Sub-basin area
897,8km²
Upstream area
897,8km²
Discharge
2,05m³/s
Mean elev.
4m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 410.8 km²45.7% of basin
- 239.3 km²26.6% of basin
- 112.2 km²12.5% of basin
- 47.8 km²5.3% of basin
- 30.2 km²3.4% of basin
- 0.9 km²0.1% of basin
10 intersecting protected areas
Laguna Salada Grande
IUCN VIForest Reserve
289.98 km² overlap
Bahía de Samborombón
IUCN Not ReportedWetland of International Importance (Ramsar Site)
208.18 km² overlap
Bahía de Samborombón
IUCN VIIntegral Nature Reserve
137.68 km² overlap
Parque Atlántico Mar Chiquito
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
33.28 km² overlap
Mar Chiquita
IUCN VIWildlife Refuge
32.69 km² overlap
Campos del Tuyú
IUCN IINational Park
30.04 km² overlap
Mar Chiquita
IUCN VIMultiple Use Nature Reserve
22.82 km² overlap
Rincón de Ajó
IUCN IVIntegral Nature Reserve
12.74 km² overlap
Mar Chiquita - Dragones de Malvinas
IUCN Not ReportedNature Reserve of Defense
4.67 km² overlap
1 more protected areassorted by overlap area
Faro Querandí
IUCN Not ReportedNature Reserve of Defense
0.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 146 distinct species · 107 585 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Ría de Ajó : 29 espèces reliées par 48 interactions GloBI sur 3 types (connectance 7.6%, filtre Serrano α=0.2). 7 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°
15,0°C
Annual rain
887mm
Moisture idx (CMI)
-0,16
Runoff
345mm/an
PET
1 057mm
AET
736mm
Mean slope
0,1°
Water table
26cm
Forest
2%
Crops
1%
Urban
12%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)