HydroBASINS lev08 watershed · #7080038600
Bassin de Indian 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 1 administrative regions : Washington
Sub-basin area
262,1km²
Upstream area
262,8km²
Discharge
7,12m³/s
Mean elev.
18m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Washington208.9 km²79.6% of basin
30 intersecting protected areas
Great Wass Island
IUCN VPreserve
5.88 km² overlap
Easement
2.48 km² overlap
Steele Harbor Island
IUCN VEasement
1.71 km² overlap
Dalot Quarry
IUCN VPCL
0.80 km² overlap
Crowley Island
IUCN VPCL
0.73 km² overlap
Dick Brook (CE)
IUCN Not AssignedConservation Easement
0.69 km² overlap
Indian River
IUCN VPrivate Conservation
0.52 km² overlap
Great Wass Island
IUCN VEasement
0.48 km² overlap
Crowley Island Phase II
IUCN VPCL
0.48 km² overlap
21 more protected areassorted by overlap area
Hardwood Hill
IUCN VPCL
0.44 km² overlap
Godfrey
IUCN VPCL
0.40 km² overlap
Southwest Creek
IUCN VPCL
0.28 km² overlap
Dowling
IUCN VPCL
0.24 km² overlap
Atkins
IUCN VPCL
0.23 km² overlap
Dupree
IUCN VPCL
0.23 km² overlap
Ports Harbor South
IUCN VPCL
0.22 km² overlap
Bronfeld-Mason Bay
IUCN VPCL
0.22 km² overlap
Jonesboro Beaver Meadows
IUCN VPCL
0.20 km² overlap
Preserve
0.16 km² overlap
Petit Manan
IUCN IVNational Wildlife Refuge
0.16 km² overlap
Preserve
0.12 km² overlap
PCL
0.11 km² overlap
Meadow Brook
IUCN VPCL
0.11 km² overlap
Preserve
0.10 km² overlap
Marine Protected Area
0.10 km² overlap
State Conservation Area
0.09 km² overlap
Beal
IUCN VPCL
0.09 km² overlap
Preserve
0.08 km² overlap
Flat Island
IUCN VPCL
0.08 km² overlap
Easement
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
888 distinct species · 20 265 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Indian River : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 3 types (connectance 9.6%, filtre Serrano α=0.2). 14 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°
6,4°C
Annual rain
1 250mm
Moisture idx (CMI)
0,34
Runoff
867mm/an
PET
822mm
AET
694mm
Mean slope
1,5°
Water table
84cm
Forest
68%
Crops
1%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)