HydroBASINS lev08 watershed · #2080052090
Bassin de Black Water
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 : Highland
Sub-basin area
427km²
Upstream area
427,1km²
Discharge
11,76m³/s
Mean elev.
258m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Highland429.2 km²100.0% of basin
13 intersecting protected areas
The Flow Country
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
96.58 km² overlap
Caithness and Sutherland Peatlands
IUCN Not ReportedEmerald Network
83.38 km² overlap
Caithness and Sutherland Peatlands
IUCN Not ReportedEmerald Network
83.38 km² overlap
Caithness & Sutherland Peatlands
IUCN Not ReportedWetland of International Importance (Ramsar Site)
83.26 km² overlap
Skinsdale Peatlands
IUCN IVSite of Special Scientific Interest
60.50 km² overlap
Coir' an Eoin
IUCN IVSite of Special Scientific Interest
22.90 km² overlap
Carrol Rock
IUCN IVSite of Special Scientific Interest
1.34 km² overlap
Lairg and Strath Brora Lochs
IUCN IVSite of Special Scientific Interest
1.20 km² overlap
Lairg and Strath Brora Lochs
IUCN Not ReportedEmerald Network
1.20 km² overlap
4 more protected areassorted by overlap area
Inverbrora
IUCN IIISite of Special Scientific Interest
0.06 km² overlap
Moray Firth
IUCN Not ReportedMarine Protected Area (OSPAR)
0.00 km² overlap
Moray Firth
IUCN Not ReportedEmerald Network
0.00 km² overlap
Moray Firth
IUCN Not ReportedEmerald Network
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 068 distinct species · 20 214 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Black Water : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 5 types (connectance 14.3%, 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°
6,8°C
Annual rain
907mm
Moisture idx (CMI)
0,44
Runoff
843mm/an
PET
505mm
AET
447mm
Mean slope
5,2°
Water table
297cm
Forest
0%
Crops
1%
Urban
0%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)