River Afon Vyrnwy

7 fish species have been recorded at 2 locations along the River Afon Vyrnwy.

Records updated10 August 2026Most recent survey: 2005
Fish species
7
Places surveyed
2
Survey visits
2
Records span
2005

Local EA evidence

Where fish were recorded

2 of 2 places shown

Choose a point on the map to see what was recorded there.

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River conditions

Environment Agency evidence

Fish found in this river

Open a linked fish for detailed measurements, or use the map filter above to compare survey locations.

FishSitesMost recentFish countedMeasured lengthMeasured weight
ChubLeuciscus cephalus2200520Median: 30 cm20 fish measuredLargest measured chub: 37.2 cm—
GudgeonGobio gobio2200574Median: 11.9 cm74 fish measuredLargest measured gudgeon: 14.9 cm—
PerchPerca fluviatilis2200540Median: 8.4 cm40 fish measuredLargest measured perch: 25.4 cm—
RoachRutilus rutilus22005122Median: 15.6 cm48 fish measuredLargest measured roach: 29.6 cm—
RuffeGymnocephalus cernuus220057Median: 7.5 cm7 fish measuredLargest measured ruffe: 8.7 cm—
Brown / sea troutSalmo trutta120052——
DaceLeuciscus leuciscus120057Median: 23.3 cm7 fish measuredLargest measured dace: 24.2 cm—

EA surveys have recorded these fish at particular sites and times. Absence from a survey is not evidence that a species is absent from the river. Every valid individual length and weight is retained, with its sample size shown.

Useful context

This page follows survey locations along the main River Afon Vyrnwy. Tributaries and unrelated rivers with similar names are kept separate.

The map shows past fish records, not fishing access or a promise of what you’ll catch today.

How RiverFish handles the data →