HydroBASINS lev08 watershed · #7080314380
Bassin de Rivière Nemio
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 : Le Haut-Saint-Maurice
Sub-basin area
1 896,9km²
Upstream area
1 897,1km²
Discharge
31,27m³/s
Mean elev.
431m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 1902.6 km²100.0% of basin
22 intersecting protected areas
Proposed biodiversity reserve
130.57 km² overlap
Land reserved for protected area
63.66 km² overlap
Proposed biodiversity reserve
21.91 km² overlap
04351R063 Biological Refuge
IUCN IVBiological refuge
4.70 km² overlap
04351R040 Biological Refuge
IUCN IVBiological refuge
4.26 km² overlap
04351R078 Biological Refuge
IUCN IVBiological refuge
4.17 km² overlap
04351R051 Biological Refuge
IUCN IVBiological refuge
3.00 km² overlap
04351R054 Biological Refuge
IUCN IVBiological refuge
2.80 km² overlap
04351R043 Biological Refuge
IUCN IVBiological refuge
2.45 km² overlap
13 more protected areassorted by overlap area
04351R059 Biological Refuge
IUCN IVBiological refuge
2.30 km² overlap
04351R049 Biological Refuge
IUCN IVBiological refuge
2.19 km² overlap
04351R044 Biological Refuge
IUCN IVBiological refuge
2.11 km² overlap
04351R041 Biological Refuge
IUCN IVBiological refuge
2.00 km² overlap
04351R029 Biological Refuge
IUCN IVBiological refuge
1.69 km² overlap
04351R060 Biological Refuge
IUCN IVBiological refuge
1.58 km² overlap
04351R048 Biological Refuge
IUCN IVBiological refuge
1.42 km² overlap
04351R039 Biological Refuge
IUCN IVBiological refuge
1.39 km² overlap
04351R071 Biological Refuge
IUCN IVBiological refuge
1.37 km² overlap
04351R055 Biological Refuge
IUCN IVBiological refuge
1.33 km² overlap
04351R070 Biological Refuge
IUCN IVBiological refuge
0.60 km² overlap
04351R022 Biological Refuge
IUCN IVBiological refuge
0.60 km² overlap
04351R057 Biological Refuge
IUCN IVBiological refuge
0.59 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
131 distinct species · 1 706 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Rivière Nemio : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 2 types (connectance 17.7%, 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°
0,8°C
Annual rain
1 027mm
Moisture idx (CMI)
0,34
Runoff
527mm/an
PET
675mm
AET
590mm
Mean slope
2,3°
Water table
46cm
Forest
45%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)