HydroBASINS lev08 watershed · #7080395750
Bassin de Roach 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 : Piscataquis
Sub-basin area
585,6km²
Upstream area
585,6km²
Discharge
12,95m³/s
Mean elev.
415m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 587.0 km²100.0% of basin
3 intersecting protected areas
Debsconeags Matrix Area
IUCN VEasement
14.89 km² overlap
Lily Bay
IUCN IIIState Park
3.26 km² overlap
Gulf Hagas Matrix
IUCN VConservation Easement
0.70 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
774 distinct species · 26 496 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 49 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 Roach River : 39 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 4 types (connectance 8.2%, 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°
3,4°C
Annual rain
1 058mm
Moisture idx (CMI)
0,26
Runoff
716mm/an
PET
778mm
AET
660mm
Mean slope
3,8°
Water table
148cm
Forest
86%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)