Ruisseau· 10 segments

Rhymney River

Crosses 5 administrative regions : Caerphilly, Cardiff, NA, Newport, Powys

ruisseau

Total length

56km

Max discharge

6,3m³/s

Max Strahler

Segments matched

River geography5 admin regions · 0 communes

Parent watershed

hybas-2080049720501 km²

5 administrative regions crossed (GADM L2)

Caerphilly
Wales · United Kingdom
32.7 km
in this dpt
Cardiff
Wales · United Kingdom
9.6 km
in this dpt
Newport
Wales · United Kingdom
5.0 km
in this dpt
NA
Wales · United Kingdom
3.7 km
in this dpt
Powys
Wales · United Kingdom
0.0 km
in this dpt

22 intersecting protected areas

Bannau Brycheiniog
IUCN V
National Park
Severn Estuary/ Môr Hafren
IUCN Not Reported
Emerald Network
Severn Estuary / Môr Hafren
IUCN Not Reported
Marine Protected Area (OSPAR)
Severn Estuary
IUCN Not Reported
Emerald Network
Severn Estuary
IUCN IV
Wetland of International Importance (Ramsar Site)
Severn Estuary
IUCN Not Reported
Marine Protected Area (OSPAR)
Severn Estuary
IUCN IV
Site of Special Scientific Interest
Gwent Levels - Rumney And Peterstone
IUCN IV
Site of Special Scientific Interest
Ruperra Castle & Woodlands
IUCN IV
Site of Special Scientific Interest

13 more protected areassorted by area

Cefn Y Brithdir
IUCN IV
Site of Special Scientific Interest
Aberbargoed Grasslands
IUCN IV
Site of Special Scientific Interest
Aberbargoed Grasslands/Glaswelltiroedd Aberbargoed
IUCN IV
National Nature Reserve
Aberbargoed Grasslands
IUCN Not Reported
Emerald Network
Nant Fawr Corridor
IUCN Not Reported
Local Nature Reserve
Howardian
IUCN Not Reported
Local Nature Reserve
Lisvane Reservoir
IUCN IV
Site of Special Scientific Interest
Argloddiau Cronfeyedd Dwr Llanisien A Llys-Faen / Llanishen And Lisvane Reservoir Embankments
IUCN IV
Site of Special Scientific Interest
Plas Machen Wood
IUCN IV
Site of Special Scientific Interest
Llanbradach Quarry
IUCN IV
Site of Special Scientific Interest
Rhymney River Section
IUCN IV
Site of Special Scientific Interest
Rumney Quarry
IUCN IV
Site of Special Scientific Interest
Lower House Stream Section
IUCN IV
Site of Special Scientific Interest

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 312 distinct species · 6 231 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 45 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Rhymney River : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 5 types (connectance 8.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.089

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)