HydroBASINS lev08 watershed · #7080012810
Bassin de Ventura 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 2 administrative regions : Santa Barbara, Ventura
Sub-basin area
1 704,3km²
Upstream area
1 704,3km²
Discharge
0,01m³/s
Mean elev.
401m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 965.5 km²56.7% of basin
- 700.6 km²41.1% of basin
30 intersecting protected areas
Matilija
IUCN IbWilderness
97.88 km² overlap
Preserve
92.16 km² overlap
Ventura River
IUCN VPreserve
5.81 km² overlap
Marine Protected Area
4.60 km² overlap
Arroyo Hondo
IUCN VPreserve
3.16 km² overlap
Rancho Dos Vistas
IUCN Not AssignedConservation Easement
2.79 km² overlap
Goleta Slough
IUCN VEcological Reserve
1.69 km² overlap
Marine Protected Area
1.68 km² overlap
Marine Protected Area
1.09 km² overlap
21 more protected areassorted by overlap area
Park
0.88 km² overlap
Marine Protected Area
0.88 km² overlap
Valley View
IUCN VPreserve
0.84 km² overlap
Marine Protected Area
0.84 km² overlap
Coal Oil Point
IUCN VNatural Reserve
0.70 km² overlap
Preserve
0.54 km² overlap
Natural Reserve
0.49 km² overlap
Marine Protected Area
0.41 km² overlap
Ilvento
IUCN VPreserve
0.31 km² overlap
Douglas Family
IUCN VReserve
0.29 km² overlap
Ventura River Steelhead
IUCN VPreserve
0.28 km² overlap
Ojai Meadows
IUCN VPreserve
0.23 km² overlap
Rio Vista
IUCN VPreserve
0.22 km² overlap
Carpinteria Salt Marsh
IUCN VReserve
0.18 km² overlap
Andre Clark
IUCN VBird Refuge
0.17 km² overlap
Hot Springs Canyon
IUCN VPrivate Conservation
0.16 km² overlap
Seaside
IUCN VWilderness Park
0.08 km² overlap
Ventura River Confluence
IUCN VPreserve
0.05 km² overlap
Del Sol Vernal Pool
IUCN VReserve
0.05 km² overlap
Sperling
IUCN VPreserve
0.04 km² overlap
Coronado Butterfly
IUCN VPreserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
10 930 distinct species · 3 211 557 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Ventura River : 18 espèces reliées par 63 interactions GloBI sur 2 types (connectance 12.7%, filtre Serrano α=0.2). 14 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°
14,5°C
Annual rain
513mm
Moisture idx (CMI)
-0,57
Runoff
167mm/an
PET
1 197mm
AET
435mm
Mean slope
12,4°
Water table
514cm
Forest
87%
Crops
7%
Urban
10%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)