HydroBASINS lev08 watershed · #7080195810
Bassin de Marchand Creek
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 2 administrative regions : Division No. 19, Division No. 21
Sub-basin area
958,8km²
Upstream area
557 722,1km²
Discharge
1 531,58m³/s
Mean elev.
218m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #7080201750925 km²
- Bassin · #70802017600 km²
2 dept-equivalent regions (GADM L2)
- 566.2 km²58.8% of basin
- 396.5 km²41.2% of basin
2 intersecting protected areas
Pimachiowin Aki
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
189.40 km² overlap
Traditional Use Planning Area
21.65 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
44 distinct species · 72 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 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 Marchand Creek : 8 espèces reliées par 14 interactions GloBI sur 2 types (connectance 21.2%, filtre Serrano α=0.2). 4 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°
-0,4°C
Annual rain
450mm
Moisture idx (CMI)
-0,27
Runoff
8mm/an
PET
619mm
AET
386mm
Mean slope
0,1°
Water table
0cm
Forest
16%
Crops
0%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)