RiverFish

Roach · Rutilus rutilus

Roach in the River Eyebrook

Largest measured roach: 27.5 cm

The largest roach measured in Environment Agency surveys of the River Eyebrook was 27.5 cm, recorded at Downstream Eyebrook Reservoir on 18 March 1993.

Across 845 measured roach, the median measured length was 10.6 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Eyebrook.

See roach records across England →

Most recent observation2 April 2026Downstream Eyebrook Reservoir · 19 fish
Largest measured roach
27.5 cm
Median length
10.6 cm
Fish measured
845
Survey locations
5

Individual EA measurements

Largest measured roach

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
27.5 cm18 Mar 1993Downstream Eyebrook Reservoir54555
27 cm18 Mar 1993Stockerston Road Bridge54554
25 cm18 Mar 1993Downstream Eyebrook Reservoir54555
25 cm4 Apr 1990Stockerston Road Bridge54544
24.5 cm18 Mar 1993Stockerston Road Bridge54554
24 cm10 Apr 1990Downstream Eyebrook Reservoir54545
24 cm10 Apr 1990Downstream Eyebrook Reservoir54545
24 cm10 Apr 1990Downstream Eyebrook Reservoir54545
24 cm4 Apr 1990Stockerston Road Bridge54544
24 cm4 Apr 1990Stockerston Road Bridge54544

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where roach were found

Each point marks a survey location with at least one roach record.

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

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding roach
Downstream Eyebrook Reservoir10 Apr 19902 Apr 202613
Stockerston Road Bridge4 Apr 199020 Jun 20139
Downstream Allexton Rd. Br.27 Sept 20109 Jun 20112
Downstream Caldecott Road Bridge19 May 200019 May 20001
Allexton Road Bridge16 May 200016 May 20001

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1990–2026

Survey records by year

Each bar shows how many survey visits recorded roach that year.

Fish measured by surveyors

Measured length distribution

See how the 845 measured fish were spread across different length ranges.

Smallest
3.5 cm
Lower quarter
7 cm
Median
10.6 cm
Upper quarter
12.6 cm
Largest
27.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Eyebrook

Compare other species with enough survey and measurement data for a detailed page.

Bullhead Brown / sea trout Minnow Stone loach Dace Chub

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →