HydroBASINS lev08 watershed · #7080426150
Bassin de Sebasticook 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 5 administrative regions : Kennebec, Penobscot, Piscataquis, Somerset, Waldo
Sub-basin area
2 442km²
Upstream area
2 442,2km²
Discharge
55,8m³/s
Mean elev.
118m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 769.9 km²31.5% of basin
- 517.8 km²21.2% of basin
- 483.3 km²19.7% of basin
- 481.6 km²19.7% of basin
- 194.8 km²8.0% of basin
15 intersecting protected areas
Sebasticook River
IUCN VPrivate Conservation
2.21 km² overlap
Fowler Bog
IUCN VPCL
1.74 km² overlap
Sebasticook River
IUCN VPCL
0.86 km² overlap
Orlt Fee
IUCN VPCL
0.77 km² overlap
Kanokolus Bog
IUCN VPrivate Conservation
0.76 km² overlap
Pleasant Lake
IUCN VPreserve
0.63 km² overlap
Preserve
0.55 km² overlap
Richardson Memorial
IUCN VPreserve
0.48 km² overlap
PCL
0.36 km² overlap
6 more protected areassorted by overlap area
Freedom
IUCN VForest Preserve
0.35 km² overlap
Gordon
IUCN VSanctuary
0.28 km² overlap
Unity Wetlands Area
IUCN VWetlands
0.17 km² overlap
Davidson
IUCN VNature Preserve
0.05 km² overlap
Great Moose
IUCN VWetlands Preserve
0.02 km² overlap
Wetlands
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 339 distinct species · 411 464 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Sebasticook River : 23 espèces reliées par 68 interactions GloBI sur 3 types (connectance 13.7%, 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°
6,0°C
Annual rain
1 088mm
Moisture idx (CMI)
0,19
Runoff
817mm/an
PET
886mm
AET
706mm
Mean slope
2,4°
Water table
150cm
Forest
95%
Crops
3%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)