HydroBASINS lev08 watershed · #7080039670
Bassin de Quinnipiac 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 3 administrative regions : Hartford, Middlesex, New Haven
Sub-basin area
548,8km²
Upstream area
549km²
Discharge
15,24m³/s
Mean elev.
82m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 432.0 km²78.6% of basin
- 112.7 km²20.5% of basin
- Middlesex4.0 km²0.7% of basin
30 intersecting protected areas
Sleeping Giant
IUCN IIIState Park
6.30 km² overlap
Marine Protected Area
2.28 km² overlap
West Rock Ridge
IUCN IIIState Park
1.81 km² overlap
Quinnipiac River
IUCN IIIState Park
1.41 km² overlap
Trimountain State Park
IUCN IIIScenic Reserve
0.59 km² overlap
Higby Mountain
IUCN VPrivate Conservation Land
0.51 km² overlap
Town of Cheshire 2
IUCN Not AssignedLocal Other or Unknown
0.29 km² overlap
North Haven Land Trust 1
IUCN VPrivate Conservation
0.28 km² overlap
Black Pond
IUCN VWildlife Management Area
0.28 km² overlap
21 more protected areassorted by overlap area
Private Conservation
0.23 km² overlap
Private Conservation
0.21 km² overlap
Private Conservation
0.21 km² overlap
Private Conservation
0.18 km² overlap
Private Conservation
0.18 km² overlap
West Rock
IUCN IIIState Park
0.15 km² overlap
Private Conservation
0.13 km² overlap
Wharton Brook
IUCN IIIState Park
0.12 km² overlap
Salem Road
IUCN VPrivate Conservation
0.11 km² overlap
Private Conservation
0.10 km² overlap
Private Conservation
0.10 km² overlap
Wharton Brook
IUCN VNatural Area Preserve
0.10 km² overlap
Private Conservation
0.07 km² overlap
Private Conservation
0.07 km² overlap
Sunset Rock State Park
IUCN IIIScenic Reserve
0.07 km² overlap
Private Conservation
0.06 km² overlap
PCL
0.06 km² overlap
Private Conservation
0.05 km² overlap
Private Conservation
0.05 km² overlap
Private Conservation
0.04 km² overlap
Private Conservation
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 780 distinct species · 945 272 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 Quinnipiac River : 26 espèces reliées par 74 interactions GloBI sur 4 types (connectance 11.1%, filtre Serrano α=0.2). 11 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°
9,9°C
Annual rain
1 205mm
Moisture idx (CMI)
0,19
Runoff
888mm/an
PET
980mm
AET
801mm
Mean slope
3,2°
Water table
246cm
Forest
88%
Crops
4%
Urban
62%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)