HydroBASINS lev08 watershed · #7080039680
Bassin de Wepawaug 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 : Fairfield, New Haven
Sub-basin area
220,7km²
Upstream area
220,7km²
Discharge
5,89m³/s
Mean elev.
60m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 214.0 km²96.8% of basin
- Fairfield0.0 km²0.0% of basin
30 intersecting protected areas
West Rock Ridge
IUCN IIIState Park
4.55 km² overlap
Marine Protected Area
2.31 km² overlap
Silver Sands
IUCN IIIState Park
1.27 km² overlap
Marine Protected Area
1.22 km² overlap
Town of Woodbridge 2
IUCN Not AssignedLocal Other or Unknown
0.51 km² overlap
Private Conservation
0.43 km² overlap
Hein
IUCN VTrails
0.23 km² overlap
West Rock
IUCN IIIState Park
0.17 km² overlap
Howard Brooks
IUCN Not AssignedConservation Area
0.15 km² overlap
21 more protected areassorted by overlap area
Private Conservation
0.13 km² overlap
Stewart B. Mckinney
IUCN IVNational Wildlife Refuge
0.11 km² overlap
Marine Protected Area
0.11 km² overlap
Kowal
IUCN VNature Preserve
0.06 km² overlap
New Haven Land Trust 3
IUCN VPrivate Conservation
0.05 km² overlap
Private Conservation
0.05 km² overlap
Local Conservation Area
0.04 km² overlap
Private Conservation
0.04 km² overlap
Private Conservation
0.03 km² overlap
Yale University 3
IUCN VPCL
0.03 km² overlap
Private Conservation
0.03 km² overlap
West River Natural A
IUCN VNatural Area Site
0.02 km² overlap
Private Conservation
0.02 km² overlap
Local Conservation Area
0.02 km² overlap
Manley Heights
IUCN VPrivate Conservation
0.02 km² overlap
Private Conservation
0.02 km² overlap
Orange Land Trust Inc 1
IUCN VPrivate Conservation
0.02 km² overlap
Smith-Hubbell
IUCN VWildlife Sanctuary
0.02 km² overlap
Private Conservation
0.02 km² overlap
Unknown
IUCN Not AssignedConservation Easement
0.02 km² overlap
Private Conservation
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 933 distinct species · 431 437 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 Wepawaug River : 26 espèces reliées par 98 interactions GloBI sur 3 types (connectance 15.6%, filtre Serrano α=0.2). 10 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°
10,2°C
Annual rain
1 162mm
Moisture idx (CMI)
0,18
Runoff
886mm/an
PET
955mm
AET
781mm
Mean slope
2,5°
Water table
269cm
Forest
75%
Crops
0%
Urban
59%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)