HydroBASINS lev08 watershed · #5080613970
Bassin de Barwon 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 2 administrative regions : Colac-Otway, Surf Coast
Sub-basin area
1 133,9km²
Upstream area
1 134,2km²
Discharge
10,87m³/s
Mean elev.
194m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 669.3 km²59.0% of basin
- 465.4 km²41.0% of basin
14 intersecting protected areas
Great Otway
IUCN IINational Park
116.55 km² overlap
Lake Thurrumbong W.R.
IUCN VINatural Features Reserve
4.09 km² overlap
Aquila Creek
IUCN IaReference Area
2.66 km² overlap
Bambra B.R.
IUCN IVNatural Features Reserve
0.39 km² overlap
Barwon Downs B.R.
IUCN IVNatural Features Reserve
0.22 km² overlap
Lake Ayrey W.R
IUCN IaNature Conservation Reserve
0.19 km² overlap
Lake Dubban W.R
IUCN VINatural Features Reserve
0.14 km² overlap
Wensleydale B.R.
IUCN IVNatural Features Reserve
0.11 km² overlap
Penny Royal Creek B.R.
IUCN IVNatural Features Reserve
0.10 km² overlap
5 more protected areassorted by overlap area
Retreat Creek SS.R.
IUCN IIINatural Features Reserve
0.08 km² overlap
Yeo SS.R.
IUCN IIINatural Features Reserve
0.06 km² overlap
Murroon B.R.
IUCN IVNatural Features Reserve
0.02 km² overlap
Unnamed P0151
IUCN IVPrivate Nature Reserve
0.02 km² overlap
Parkers Road (Bambra) B.R.
IUCN IVNatural Features Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 803 distinct species · 121 204 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Barwon River : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 5 types (connectance 10.5%, filtre Serrano α=0.2). 9 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°
13,0°C
Annual rain
852mm
Moisture idx (CMI)
-0,16
Runoff
283mm/an
PET
1 010mm
AET
647mm
Mean slope
3,7°
Water table
170cm
Forest
36%
Crops
4%
Urban
0%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)