HydroBASINS lev08 watershed · #5080072470
Bassin de Powlett 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 4 administrative regions : Bass Coast, Cardinia, South Gippsland, Unincorporated Victoria
Sub-basin area
1 632,4km²
Upstream area
1 632,4km²
Discharge
1,76m³/s
Mean elev.
65m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 861.0 km²52.7% of basin
- 424.5 km²26.0% of basin
- 170.2 km²10.4% of basin
- 101.2 km²6.2% of basin
30 intersecting protected areas
Mornington Peninsula & Western Port
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
668.67 km² overlap
French Island
IUCN IINational Park
103.16 km² overlap
Western Port
IUCN Not ReportedWetland of International Importance (Ramsar Site)
56.83 km² overlap
Phillip Island Nature Park
IUCN IIIOther
19.53 km² overlap
National Parks Act Schedule 3 Other Parks
18.99 km² overlap
French Island
IUCN IIMarine National Park
6.42 km² overlap
Adams Creek N.C.R.
IUCN IaNatural Features Reserve
4.18 km² overlap
Grantville N.C.R
IUCN IaNatural Features Reserve
3.84 km² overlap
Churchill Island
IUCN IIMarine National Park
3.19 km² overlap
21 more protected areassorted by overlap area
French Island (east)
IUCN IaReference Area
2.80 km² overlap
Natural Features Reserve
2.78 km² overlap
The Gurdies N.C.R
IUCN IaNatural Features Reserve
2.57 km² overlap
French Island (north)
IUCN IaReference Area
2.02 km² overlap
North Western Port N.C.R.
IUCN IaNature Conservation Reserve
1.38 km² overlap
Bunurong
IUCN IIMarine National Park
0.99 km² overlap
Hurdy Gurdy Creek N.C.R
IUCN IaNature Conservation Reserve
0.37 km² overlap
Wonthaggi Wetlands Reserve
IUCN IVNatural Features Reserve
0.34 km² overlap
Grantville B.R
IUCN IVNatural Features Reserve
0.30 km² overlap
Bass River SS.R.
IUCN IIINatural Features Reserve
0.26 km² overlap
Ventnor B.R.
IUCN IVNatural Features Reserve
0.24 km² overlap
Screw Creek N.C.R.
IUCN IaNatural Features Reserve
0.18 km² overlap
Lang Lang B.R
IUCN IVNatural Features Reserve
0.11 km² overlap
Nyora N.C.R.
IUCN IaNatural Features Reserve
0.11 km² overlap
Wonthaggi G244 B.R.
IUCN IVNatural Features Reserve
0.10 km² overlap
Outtrim B.R.
IUCN IVNatural Features Reserve
0.09 km² overlap
Unnamed C0293
IUCN IVPrivate Nature Reserve
0.08 km² overlap
Wonthaggi G242 B.R.
IUCN IVNatural Features Reserve
0.07 km² overlap
Wonthaggi G240 B.R.
IUCN IVNatural Features Reserve
0.06 km² overlap
Wonthaggi G239 B.R.
IUCN IVNatural Features Reserve
0.06 km² overlap
Wonthaggi G237 B.R.
IUCN IVNatural Features Reserve
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 353 distinct species · 373 403 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 Powlett River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 4 types (connectance 7.7%, filtre Serrano α=0.2). 6 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°
13,8°C
Annual rain
972mm
Moisture idx (CMI)
-0,05
Runoff
278mm/an
PET
1 017mm
AET
734mm
Mean slope
2,6°
Water table
137cm
Forest
25%
Crops
1%
Urban
1%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)