HydroBASINS lev08 watershed · #7080063860
Bassin · #7080063860
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 : Les Îles-de-la-Madeleine
Sub-basin area
295,5km²
Upstream area
295,5km²
Discharge
9,57m³/s
Mean elev.
12m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 216.2 km²73.0% of basin
30 intersecting protected areas
Magdalen Islands Lagoons Closures (6 Overlapping Closures)
IUCN Not ApplicableOther Effective Area-Based Conservation Measure
42.50 km² overlap
National Wildlife Area
9.58 km² overlap
Île-Brion Ecological Reserve
IUCN IaEcological reserve
6.41 km² overlap
Wildlife preserve
6.12 km² overlap
Wildlife preserve
6.06 km² overlap
Water fowl gathering area
1.49 km² overlap
Pluvier Sif. Ps-012 Goulet Havre-Basques Habitat Of A Threatened Or Vulnerable Wildlife Species
IUCN VIHabitat of a threatened or vulnerable wildlife species
1.44 km² overlap
Water fowl gathering area
1.16 km² overlap
Habitat of a threatened or vulnerable wildlife species
0.72 km² overlap
21 more protected areassorted by overlap area
Habitat of a threatened or vulnerable wildlife species
0.36 km² overlap
Les Demoiselles nursery (Plaisance Bay), Magdalen Islands Closure
IUCN Not ApplicableOther Effective Area-Based Conservation Measure
0.33 km² overlap
Natural Area Under Private Stewardship
0.24 km² overlap
Natural Area Under Private Stewardship
0.21 km² overlap
Pessière à sphaignes du Havre-aux-Basques (partie S. Noël) Natural Area Under Private Stewardship
IUCN IVNatural Area Under Private Stewardship
0.17 km² overlap
Pessière noire de la Pointe-aux-Canots (partie J-C. Leblanc) Natural Area Under Private Stewardship
IUCN IVNatural Area Under Private Stewardship
0.17 km² overlap
Natural Area Under Private Stewardship
0.17 km² overlap
Grèbe Esc. Ge-002-11-12-14 Pte De L'Est Habitat Of A Threatened Or Vulnerable Wildlife Species
IUCN VIHabitat of a threatened or vulnerable wildlife species
0.16 km² overlap
Natural Area Under Private Stewardship
0.15 km² overlap
Pointe de l'Est (partie Municipalité Îles-de-la-Madeleine) Natural Area Under Private Stewardship
IUCN IVNatural Area Under Private Stewardship
0.14 km² overlap
Demoiselles Nature Reserve
IUCN VIRecognized nature reserve
0.14 km² overlap
Natural Area Under Private Stewardship
0.12 km² overlap
Natural Area Under Private Stewardship
0.09 km² overlap
Pessière à sphaignes du Havre-aux-Basques (partie Cormier) Natural Area Under Private Stewardship
IUCN IVNatural Area Under Private Stewardship
0.08 km² overlap
Natural Area Under Private Stewardship
0.08 km² overlap
Natural Area Under Private Stewardship
0.07 km² overlap
Pâturage de la butte du vent (partie Mercier) Natural Area Under Private Stewardship
IUCN Not ReportedNatural Area Under Private Stewardship
0.06 km² overlap
Natural Area Under Private Stewardship
0.06 km² overlap
Habitat of a threatened or vulnerable wildlife species
0.06 km² overlap
Habitat of a threatened or vulnerable wildlife species
0.02 km² overlap
Sterne Doug. Sd-06, 4E Ilet Des Étroits Habitat Of A Threatened Or Vulnerable Wildlife Species
IUCN VIHabitat of a threatened or vulnerable wildlife species
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 520 distinct species · 237 580 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 · #7080063860 : 21 espèces reliées par 64 interactions GloBI sur 2 types (connectance 13.8%, 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°
5,0°C
Annual rain
983mm
Moisture idx (CMI)
0,42
Runoff
1 010mm/an
PET
569mm
AET
503mm
Mean slope
1,4°
Water table
83cm
Forest
33%
Crops
0%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)