HydroBASINS lev08 watershed · #5080564090
Bassin de Swan 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 13 administrative regions : Bassendean, Bayswater, Belmont, Cambridge, Kalamunda +8
Sub-basin area
195,4km²
Upstream area
97 925,3km²
Discharge
124,39m³/s
Mean elev.
31m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Wooroloo Brook1764 km²
- Bassin de Helena River1665 km²
13 dept-equivalent regions (GADM L2)
- 33.5 km²17.2% of basin
- 28.8 km²14.7% of basin
- 26.2 km²13.4% of basin
- 24.1 km²12.4% of basin
- 12.0 km²6.2% of basin
- 11.4 km²5.8% of basin
- 11.3 km²5.8% of basin
- 10.5 km²5.4% of basin
5 moreFull L2 list
- Subiaco6.3 km² · 3.2%
- South Perth6.0 km² · 3.1%
- Cambridge5.5 km² · 2.8%
- Bassendean5.4 km² · 2.8%
- Nedlands3.0 km² · 1.5%
11 intersecting protected areas
Swan River
IUCN Not AssignedManagement Area
10.77 km² overlap
Kings Park
IUCN Not AssignedBotanic Gardens
4.01 km² overlap
Swan Estuary - Milyu
IUCN VIMarine Park
0.91 km² overlap
Perth Zoo
IUCN Not AssignedOther
0.19 km² overlap
Unnamed WA37997
IUCN IaNature Reserve
0.19 km² overlap
Matilda Bay Reserve
IUCN IV5(1)(g) Reserve
0.06 km² overlap
Milyu
IUCN IaNature Reserve
0.04 km² overlap
Unnamed WA24657
IUCN IIConservation Park
0.02 km² overlap
Unnamed WA36440
IUCN Not AssignedManagement Area
0.02 km² overlap
2 more protected areassorted by overlap area
Helena River
IUCN Not AssignedManagement Area
0.01 km² overlap
Unnamed WA23076
IUCN IaNature Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 182 distinct species · 638 101 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Swan River : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 4 types (connectance 8.0%, filtre Serrano α=0.2). 12 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°
18,4°C
Annual rain
800mm
Moisture idx (CMI)
-0,41
Runoff
314mm/an
PET
1 349mm
AET
630mm
Mean slope
1,2°
Water table
202cm
Forest
1%
Crops
0%
Urban
97%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)