HydroBASINS lev08 watershed · #7080038820
Bassin de Passagassawakeag 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 : Hancock, Knox, Waldo
Sub-basin area
962,9km²
Upstream area
962,9km²
Discharge
4,3m³/s
Mean elev.
66m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 606.7 km²62.9% of basin
- Knox263.5 km²27.3% of basin
- Hancock1.1 km²0.1% of basin
30 intersecting protected areas
Camden Hills
IUCN IIIState Park
24.67 km² overlap
Ducktrap River
IUCN Not AssignedPreserve
4.57 km² overlap
Ducktrap
IUCN VWildlife Preserve
2.92 km² overlap
Long Cove Headwaters
IUCN VPreserve
1.80 km² overlap
Bald Mountain
IUCN VPreserve
1.58 km² overlap
Petit Manan
IUCN IVNational Wildlife Refuge
1.56 km² overlap
Water Supply Lands
IUCN VWatershed Protection Area
1.55 km² overlap
St. Clair
IUCN VPreserve
1.32 km² overlap
Fernalds Neck
IUCN VConservation Easement
1.13 km² overlap
21 more protected areassorted by overlap area
Ragged Mountain
IUCN VPreserve
1.06 km² overlap
Watershed
0.95 km² overlap
Moose Point
IUCN IIIState Park
0.87 km² overlap
Marine Protected Area
0.84 km² overlap
Weskeag
IUCN VWetlands
0.82 km² overlap
Aldermere Farm
IUCN VPCL
0.54 km² overlap
Camden Hills
IUCN IIIState Park
0.48 km² overlap
Watershed
0.39 km² overlap
Head Of Tide
IUCN VPreserve
0.37 km² overlap
Warren Island
IUCN IIIState Park
0.37 km² overlap
PCL
0.34 km² overlap
Stephenson
IUCN VPreserve
0.34 km² overlap
Mount Percival
IUCN Not AssignedConservation Easement
0.30 km² overlap
Swan
IUCN IIILake
0.28 km² overlap
Birch Point
IUCN IIIState Park
0.26 km² overlap
McLellan-Poor
IUCN Not AssignedPreserve
0.26 km² overlap
Wheeler Bay
IUCN Not AssignedWildlife Sanctuary
0.22 km² overlap
Meadow Brook
IUCN VPreserve
0.20 km² overlap
Stover
IUCN VPreserve
0.20 km² overlap
Ash Island
IUCN VPCL
0.19 km² overlap
Preserve
0.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 135 distinct species · 537 540 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Passagassawakeag River : 20 espèces reliées par 70 interactions GloBI sur 3 types (connectance 15.1%, 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°
7,1°C
Annual rain
1 177mm
Moisture idx (CMI)
0,25
Runoff
904mm/an
PET
877mm
AET
709mm
Mean slope
3,0°
Water table
241cm
Forest
94%
Crops
4%
Urban
1%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)