HydroBASINS lev08 watershed · #5080072580
Bassin de Grasmere Creek
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 6 administrative regions : Cardinia, Casey, Frankston, Kingston, Mornington Peninsula +1
Sub-basin area
1 338,7km²
Upstream area
1 338,7km²
Discharge
0,01m³/s
Mean elev.
66m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 724.0 km²54.0% of basin
- 269.2 km²20.1% of basin
- 227.4 km²17.0% of basin
- 33.6 km²2.5% of basin
- 19.2 km²1.4% of basin
- 0.6 km²0.0% of basin
30 intersecting protected areas
Mornington Peninsula & Western Port
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
850.13 km² overlap
Western Port
IUCN Not ReportedWetland of International Importance (Ramsar Site)
52.47 km² overlap
Mornington Peninsula
IUCN IINational Park
26.82 km² overlap
North Western Port N.C.R.
IUCN IaNature Conservation Reserve
17.05 km² overlap
Devilbend N.F.R.
IUCN IVNatural Features Reserve
10.07 km² overlap
Yaringa
IUCN IIMarine National Park
6.57 km² overlap
Arthurs Seat
IUCN IIIState Park
5.66 km² overlap
Point Nepean
IUCN IINational Park
5.32 km² overlap
Port Phillip Heads
IUCN IIMarine National Park
4.03 km² overlap
21 more protected areassorted by overlap area
Port Phillip Bay (Western Shoreline) and Bellarine Peninsula
IUCN Not ReportedWetland of International Importance (Ramsar Site)
2.41 km² overlap
Beaconsfield N.C.R.
IUCN IaNatural Features Reserve
1.72 km² overlap
Conservation Park
1.06 km² overlap
Frankston N.C.R.
IUCN IVNatural Features Reserve
0.91 km² overlap
Main Ridge N.C.R.
IUCN IaNatural Features Reserve
0.65 km² overlap
Natural Features Reserve
0.65 km² overlap
Mount Martha N.C.R.
IUCN IaNature Conservation Reserve
0.53 km² overlap
Upper Beaconsfield N.C.R.
IUCN IaNatural Features Reserve
0.35 km² overlap
Buckley N.C.R.
IUCN IaNatural Features Reserve
0.32 km² overlap
Cardinia Creek N.C.R.
IUCN IaNatural Features Reserve
0.29 km² overlap
Bald Hill N.C.R
IUCN IaNatural Features Reserve
0.23 km² overlap
Kangerong N.C.R
IUCN IaNatural Features Reserve
0.21 km² overlap
Fossil Beach G.R.
IUCN IIINatural Features Reserve
0.20 km² overlap
Mushroom Reef
IUCN IIIMarine Sanctuary
0.20 km² overlap
Balcombe Creek B.R.
IUCN IVNatural Features Reserve
0.17 km² overlap
Nature Conservation Reserve
0.14 km² overlap
Olivers Creek B.R.
IUCN IVNatural Features Reserve
0.11 km² overlap
Pakenham G71 B.R.
IUCN IVNatural Features Reserve
0.11 km² overlap
Tyabb B.R.
IUCN IVNatural Features Reserve
0.10 km² overlap
Black Hill B.R.
IUCN IVNatural Features Reserve
0.08 km² overlap
Gembrook G66 B.R.
IUCN IVNatural Features Reserve
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 100 distinct species · 1 186 228 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Grasmere Creek : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 63 interactions GloBI sur 5 types (connectance 9.5%, 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°
14,2°C
Annual rain
851mm
Moisture idx (CMI)
-0,16
Runoff
267mm/an
PET
1 018mm
AET
693mm
Mean slope
2,3°
Water table
142cm
Forest
67%
Crops
8%
Urban
16%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)