Ruisseau

River Clydach

Crosses 3 administrative regions : Monmouthshire, NA, Powys

ruisseau

Total length

17km

Max discharge

0,6m³/s

Max Strahler

Segments matched

River geography3 admin regions · 0 communes

Parent watershed

hybas-20800497101316 km²

3 administrative regions crossed (GADM L2)

Monmouthshire
Wales · United Kingdom
5.9 km
in this dpt
NA
Wales · United Kingdom
1.6 km
in this dpt
Powys
Wales · United Kingdom
0.0 km
in this dpt

9 intersecting protected areas

Bannau Brycheiniog
IUCN V
National Park
Usk Bat Sites/ Safleoedd Ystlumod Wysg
IUCN Not Reported
Emerald Network
Mynydd Llangatwg (Mynydd Llangattock)
IUCN IV
Site of Special Scientific Interest
River Usk/ Afon Wysg
IUCN Not Reported
Emerald Network
River Usk (Upper Usk) / Afon Wysg (Wysg Uchaf)
IUCN IV
Site of Special Scientific Interest
Cwm Clydach
IUCN IV
Site of Special Scientific Interest
Cwm Clydach Woodlands / Coedydd Cwm Clydach
IUCN Not Reported
Emerald Network
Cwm Clydach
IUCN IV
National Nature Reserve
Brynmawr Sections
IUCN IV
Site of Special Scientific Interest

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

Species present

4 131 distinct species · 75 205 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 40 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 River Clydach : 29 espèces reliées par 106 interactions GloBI sur 6 types (connectance 12.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

106

Connectance

0.123

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)