River ORSUs

2 fish species have been recorded at 4 locations along the River ORSUs.

Records updated10 August 2026Most recent survey: 2004
Fish species
2
Places surveyed
4
Survey visits
4
Records span
2004

Local EA evidence

Where fish were recorded

4 of 4 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
RoachRutilus rutilus2200429Median: 9.6 cm29 fish measuredLargest measured roach: 14.9 cm—
PerchPerca fluviatilis120046Median: 13.3 cm6 fish measuredLargest measured perch: 15.7 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 ORSUs. 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 →