Marine Protected Area (OSPAR) · GBR
Severn Estuary
- Area
- 223 km²
- IUCN cat.
- Not Reported
- Year
- 2011
Overview
- Designation
- Marine Protected Area (OSPAR)
- Established
- 2011
- Managing authority
- OSPAR Commission
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
4 666 distinct species · 121 701 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 Severn Estuary : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 6 types (connectance 19.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology11 basins · 0 lakes · 26 rivers
Hydrology metrics for this exact territory
Stream length here
20,1km
Basins crossed
11
Max stream order
5
Max drainage
10 975km²
Discharge in basins
2,9m³/s
Mean precip.
864mm/an
Mean T°
9,5°C
Moisture idx
0,21
Max snow
13%
Mean runoff
607mm/an
Mean elev. (basins)
95m
Watersheds crossing here
- Bassin de River Severnsub-area1 209,3 km²overlap15.88 km²7%
- Bassin de River Bruesub-area1 122 km²overlap10.45 km²5%
- Bassin de Little Avon Riversub-area307,3 km²overlap8.54 km²4%
- Bassin de Mounton Brooksub-area209,5 km²overlap7.68 km²3%
- Bassin de Tufts Brooksub-area118,7 km²overlap6.13 km²3%
- Bassin de Doniford Streamsub-area748 km²overlap5.26 km²2%
- Bassin de Rhymney Riversub-area500,5 km²overlap5.06 km²2%
- Bassin de River Parrettsub-area1 667,3 km²overlap1.42 km²1%
- Bassin de River Elysub-area408,2 km²overlap0.74 km²0%
2 more basinssorted by overlap
Rivers / streams (26, ord ≥ 4)
- River Severnord 5len here8.18 km3%total303 km
- River Parrettord 5len here4.64 km7%total67 km
- Gloucester and Sharpness Canalord 2len here1.98 km20%total10 km
- River Avonord 4len here1.18 km1%total123 km
- Oldbridge Riverord 2len here0.92 km8%total11 km
- River Axeord 2len here0.72 km2%total34 km
- River Brueord 3len here0.50 km1%total61 km
- River Wyeord 5len here0.31 km0%total276 km
- Bilsham Rhineord 1len here0.24 km18%total1 km
- Putnell Rhyneord 1len here0.22 km4%total6 km
- Forge Brookord 2len here0.21 km2%total14 km
- Tarwick Reenord 1len here0.21 km30%total1 km
14 more river segmentssorted by Strahler order + length
- Doverte Brookord 2len here0.18 km1%total13 km
- Clevedon Pillord 2len here0.13 km2%total6 km
- Stockwell Brookord 1len here0.13 km7%total2 km
- Rhymney Riverord 2len here0.07 km0%total51 km
- Cone Brookord 1len here0.07 km2%total3 km
- Holford Streamord 2len here0.05 km5%total1 km
- Ebbw Riverord 2len here0.05 km0%total21 km
- Hawse Reenord 1len here0.03 km1%total3 km
- Cockercombeord 2len here0.03 km0%total12 km
- Nedern Brookord 2len here0.02 km0%total6 km
- Olveston Mead Rhineord 2len here0.02 km0%total5 km
- Windmil Reenord 2len here≈ tangenttotal1 km
- Ferneyley Brookord 1len here≈ tangenttotal3 km
- Mounton Brookord 2len here≈ tangenttotal12 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 51.59345, -2.66871
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.