HydroBASINS lev08 watershed · #7080353340
Bassin de Saint John 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 : Aroostook
Sub-basin area
268,5km²
Upstream area
10 500km²
Discharge
205,85m³/s
Mean elev.
343m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Allagash River134 km²
- Bassin de Saint John River12 km²
1 dept-equivalent regions (GADM L2)
- 269.3 km²100.0% of basin
2 intersecting protected areas
Debouille
IUCN VEcological Reserve
0.47 km² overlap
Rocky Island
IUCN VPreserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
373 distinct species · 1 101 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Saint John River : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 126 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 18 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°
2,6°C
Annual rain
995mm
Moisture idx (CMI)
0,24
Runoff
612mm/an
PET
753mm
AET
626mm
Mean slope
5,4°
Water table
168cm
Forest
98%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)