HydroBASINS lev08 watershed · #2080053570
Bassin de River Blyth
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 : NA, Suffolk
Sub-basin area
847,6km²
Upstream area
847,6km²
Discharge
0,53m³/s
Mean elev.
22m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- SuffolkEngland · United Kingdom828.6 km²97.4% of basin
- NAEngland · United Kingdom6.8 km²0.8% of basin
30 intersecting protected areas
Suffolk Coast & Heaths
IUCN VArea of Outstanding Natural Beauty
279.16 km² overlap
Suffolk
IUCN VHeritage Coast
114.89 km² overlap
Sandlings
IUCN Not ReportedEmerald Network
31.86 km² overlap
Alde-Ore Estuary
IUCN IVSite of Special Scientific Interest
25.32 km² overlap
Alde-Ore Estuary
IUCN Not ReportedWetland of International Importance (Ramsar Site)
25.32 km² overlap
Sandlings Forest
IUCN IVSite of Special Scientific Interest
24.05 km² overlap
Alde-Ore Estuary
IUCN Not ReportedEmerald Network
24.02 km² overlap
Site of Special Scientific Interest
23.04 km² overlap
Minsmere - Walberswick
IUCN IVWetland of International Importance (Ramsar Site)
20.07 km² overlap
21 more protected areassorted by overlap area
Minsmere-Walberswick
IUCN Not ReportedEmerald Network
19.96 km² overlap
Outer Thames Estuary
IUCN Not ReportedEmerald Network
16.42 km² overlap
Alde, Ore and Butley Estuaries
IUCN Not ReportedEmerald Network
16.31 km² overlap
Outer Thames Estuary
IUCN Not ReportedMarine Protected Area (OSPAR)
14.36 km² overlap
Minsmere to Walberswick Heaths and Marshes
IUCN Not ReportedEmerald Network
12.56 km² overlap
Alde–-Ore Estuary
IUCN Not ReportedMarine Protected Area (OSPAR)
11.39 km² overlap
Alde Ore and Butley Estuaries
IUCN Not ReportedMarine Protected Area (OSPAR)
11.10 km² overlap
Southern North Sea
IUCN Not ReportedEmerald Network
9.89 km² overlap
Southern North Sea
IUCN Not AssignedMarine Protected Area (OSPAR)
9.81 km² overlap
Minsmere
IUCN IVNature Reserve
9.78 km² overlap
Orfordness-Havergate
IUCN IVNational Nature Reserve
9.03 km² overlap
Orfordness-Shingle Street
IUCN Not ReportedMarine Protected Area (OSPAR)
8.87 km² overlap
Orfordness - Shingle Street
IUCN Not ReportedEmerald Network
8.87 km² overlap
Orford Ness
IUCN VNature Reserve
7.72 km² overlap
Pakefield to Easton Bavents
IUCN IVSite of Special Scientific Interest
7.35 km² overlap
Suffolk Coast
IUCN IVNational Nature Reserve
6.48 km² overlap
Leiston - Aldeburgh
IUCN IVSite of Special Scientific Interest
5.35 km² overlap
The Broads
IUCN VNational Park
5.09 km² overlap
Benacre to Easton Bavents
IUCN Not ReportedEmerald Network
4.70 km² overlap
North Warren
IUCN IVNature Reserve
4.11 km² overlap
Benacre
IUCN IVNational Nature Reserve
3.72 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 642 distinct species · 2 337 212 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 River Blyth : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 104 interactions GloBI sur 5 types (connectance 14.0%, 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°
9,8°C
Annual rain
593mm
Moisture idx (CMI)
-0,05
Runoff
284mm/an
PET
625mm
AET
470mm
Mean slope
0,9°
Water table
57cm
Forest
0%
Crops
72%
Urban
6%
Protected
35%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)