HydroBASINS lev08 watershed · #2080050400
Bassin · #2080050400
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 : Halton, NA
Sub-basin area
1,8km²
Upstream area
1,8km²
Discharge
0,03m³/s
Mean elev.
18m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- HaltonEngland · United Kingdom1.4 km²79.1% of basin
- NANA · United Kingdom0.0 km²0.8% of basin
5 intersecting protected areas
Mersey Estuary
IUCN IVSite of Special Scientific Interest
0.20 km² overlap
Mersey Estuary
IUCN Not ReportedEmerald Network
0.17 km² overlap
Mersey Estuary
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.17 km² overlap
Mersey Estuary
IUCN Not ReportedMarine Protected Area (OSPAR)
0.16 km² overlap
Runcorn Hill
IUCN IVLocal Nature Reserve
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 581 distinct species · 101 356 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 · #2080050400 : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 11.2%, filtre Serrano α=0.2). 8 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°
9,4°C
Annual rain
849mm
Moisture idx (CMI)
0,26
Runoff
604mm/an
PET
626mm
AET
523mm
Mean slope
2,4°
Water table
120cm
Forest
0%
Crops
18%
Urban
54%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)