HydroBASINS lev08 watershed · #7080617820
Bassin de California Aqueduct
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 : Fresno, San Benito
Sub-basin area
2 670,2km²
Upstream area
11 925,4km²
Discharge
61,58m³/s
Mean elev.
188m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Helm No. 1011068 km²
- Bassin de Fowler Switch Canal862 km²
2 dept-equivalent regions (GADM L2)
- 2615.1 km²97.9% of basin
- 55.8 km²2.1% of basin
11 intersecting protected areas
Mendota
IUCN VWildlife Area
45.67 km² overlap
Reserve Program
23.39 km² overlap
Kerman
IUCN VEcological Reserve
4.46 km² overlap
Alkali Sink
IUCN VEcological Reserve
3.77 km² overlap
Watershed Protection
1.24 km² overlap
San Benito
IUCN IbWilderness Study Area
0.66 km² overlap
Open Space13
IUCN VLocal Conservation Area
0.01 km² overlap
Open Space20
IUCN VLocal Conservation Area
0.00 km² overlap
Open Space11
IUCN VLocal Conservation Area
0.00 km² overlap
2 more protected areassorted by overlap area
Open Space14
IUCN VLocal Conservation Area
0.00 km² overlap
Open Space10
IUCN VLocal Conservation Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 779 distinct species · 59 773 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 California Aqueduct : 27 espèces reliées par 76 interactions GloBI sur 3 types (connectance 13.5%, 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°
16,4°C
Annual rain
235mm
Moisture idx (CMI)
-0,84
Runoff
43mm/an
PET
1 529mm
AET
198mm
Mean slope
2,3°
Water table
166cm
Forest
17%
Crops
62%
Urban
3%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)