HydroBASINS lev08 watershed · #7080037340
Bassin de Mersey 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 4 administrative regions : Annapolis, Digby, Queens, Shelburne
Sub-basin area
1 942,4km²
Upstream area
1 942,6km²
Discharge
59,11m³/s
Mean elev.
119m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- Queens1124.7 km²57.8% of basin
- 584.2 km²30.0% of basin
- Digby220.5 km²11.3% of basin
- Shelburne15.9 km²0.8% of basin
30 intersecting protected areas
National Park
381.43 km² overlap
Tobeatic Wilderness Area
IUCN IbWilderness Area
237.47 km² overlap
Medway Lakes Wilderness Area
IUCN IbWilderness Area
100.94 km² overlap
Tobeatic Wilderness Area
IUCN IbWilderness Area
77.69 km² overlap
Wilderness Area
40.70 km² overlap
Wilderness Area
22.67 km² overlap
Dunraven Bog Nature Reserve
IUCN IaNature Reserve
18.96 km² overlap
Wilderness Area
11.78 km² overlap
Tidney River Wilderness Area
IUCN IbWilderness Area
9.73 km² overlap
21 more protected areassorted by overlap area
Tobeatic Wilderness Area
IUCN Not ReportedWilderness Area
6.14 km² overlap
Tidney River Wilderness Area
IUCN IbWilderness Area
3.00 km² overlap
Long Lake Bog Nature Reserve
IUCN IaNature Reserve
2.36 km² overlap
Wilderness Area
2.31 km² overlap
North East Bay Conservation Lands
IUCN Not ReportedConservation Easement
2.03 km² overlap
Tobeatic Wilderness Area
IUCN IbWilderness Area
1.38 km² overlap
Medway Lakes Wilderness Area
IUCN IbWilderness Area
1.22 km² overlap
Minard Brook Nature Reserve
IUCN IVNature Reserve
0.84 km² overlap
Privately Protected Area
0.71 km² overlap
Nature Reserve
0.70 km² overlap
Nature Reserve
0.55 km² overlap
Old Growth Forest Lands
IUCN Not ReportedOld Growth Forest
0.54 km² overlap
Wilderness Area
0.45 km² overlap
Old Growth Forest Lands
IUCN Not ReportedOld Growth Forest
0.34 km² overlap
Old Growth Forest Lands
IUCN Not ReportedOld Growth Forest
0.30 km² overlap
Old Growth Forest Lands
IUCN Not ReportedOld Growth Forest
0.30 km² overlap
Wilderness Area
0.25 km² overlap
Old Growth Forest Lands
IUCN Not ReportedOld Growth Forest
0.25 km² overlap
Tobeatic Wilderness Area
IUCN IbWilderness Area
0.24 km² overlap
Nature Reserve
0.22 km² overlap
Old Growth Forest Lands
IUCN Not ReportedOld Growth Forest
0.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 896 distinct species · 72 358 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 Mersey River : 40 espèces reliées par 87 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 5 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°
6,1°C
Annual rain
1 342mm
Moisture idx (CMI)
0,48
Runoff
929mm/an
PET
700mm
AET
636mm
Mean slope
1,3°
Water table
95cm
Forest
81%
Crops
0%
Urban
0%
Protected
35%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)