River Isle

7 fish species have been recorded at 1 location along the River Isle.

Records updated10 August 2026Most recent survey: 2009
Fish species
7
Places surveyed
1
Survey visits
6
Records span
2008–2009

Local EA evidence

Where fish were recorded

1 of 1 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
PerchPerca fluviatilis1200921Median: 12.7 cm21 fish measuredLargest measured perch: 20 cm—
RoachRutilus rutilus1200911Median: 9.9 cm11 fish measuredLargest measured roach: 13.2 cm—
GudgeonGobio gobio1200920Median: 10 cm20 fish measuredLargest measured gudgeon: 11.4 cm—
European eelAnguilla anguilla1200913Median: 43.5 cm13 fish measuredLargest measured european eel: 57.5 cm—
PikeEsox lucius120094Median: 18.3 cm4 fish measuredLargest measured pike: 19.5 cm—
ChubLeuciscus cephalus120082Median: 29.6 cm2 fish measuredLargest measured chub: 46 cmRecorded weight: 2 lb 7 oz (1.11 kg)1 fish weighed
RuffeGymnocephalus cernuus120091Recorded length: 10.5 cm1 fish measured—

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 Isle. 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 →