HydroBASINS lev08 watershed · #2080333830
Bassin de Black 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 : Ballinamore, Carrick-on-Shannon, Granard, Longford
Sub-basin area
280,3km²
Upstream area
280,3km²
Discharge
6,05m³/s
Mean elev.
73m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 123.0 km²43.7% of basin
- 90.9 km²32.3% of basin
- 55.6 km²19.7% of basin
- 12.0 km²4.3% of basin
8 intersecting protected areas
Rinn River NHA
IUCN IVNatural Heritage Area
3.41 km² overlap
Cloonageeher Bog NHA
IUCN IVNatural Heritage Area
1.78 km² overlap
Corracramph Bog NHA
IUCN IVNatural Heritage Area
1.32 km² overlap
Cashel Bog (Leitrim) NHA
IUCN IVNatural Heritage Area
1.29 km² overlap
Aghnamona Bog NHA
IUCN IVNatural Heritage Area
0.82 km² overlap
Ballykenny-Fisherstown Bog SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.49 km² overlap
Lough Forbes Complex SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.49 km² overlap
Clooneen Bog SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 177 distinct species · 4 414 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 de Black River : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 122 interactions GloBI sur 5 types (connectance 24.6%, filtre Serrano α=0.2). 13 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°
8,9°C
Annual rain
1 104mm
Moisture idx (CMI)
0,45
Runoff
689mm/an
PET
611mm
AET
548mm
Mean slope
2,1°
Water table
71cm
Forest
1%
Crops
6%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)