HydroBASINS lev08 watershed · #5080056520
Bassin · #5080056520
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 : Dandaragan, Gingin
Sub-basin area
744,1km²
Upstream area
744,1km²
Discharge
2,06m³/s
Mean elev.
47m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 428.4 km²57.6% of basin
- 288.1 km²38.7% of basin
11 intersecting protected areas
Nambung
IUCN IINational Park
104.04 km² overlap
Wanagarren
IUCN IaNature Reserve
70.91 km² overlap
Nilgen
IUCN IaNature Reserve
53.88 km² overlap
Southern Beekeepers
IUCN IaNature Reserve
27.77 km² overlap
Jurien Bay
IUCN IIMarine Park
8.12 km² overlap
Jurien Bay
IUCN IaMarine Park
1.92 km² overlap
Nambung
IUCN IINational Park
0.32 km² overlap
Nature Reserve
0.18 km² overlap
Lancelin And Edwards Islands
IUCN IaNature Reserve
0.14 km² overlap
2 more protected areassorted by overlap area
Cervantes Islands
IUCN IaNature Reserve
0.08 km² overlap
Unnamed WA34039
IUCN V5(1)(h) Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 606 distinct species · 18 077 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 · #5080056520 : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 2 types (connectance 7.0%, filtre Serrano α=0.2). 8 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°
18,3°C
Annual rain
633mm
Moisture idx (CMI)
-0,53
Runoff
130mm/an
PET
1 339mm
AET
538mm
Mean slope
1,4°
Water table
313cm
Forest
49%
Crops
9%
Urban
0%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)