RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Eyebrook

Largest measured gudgeon: 15.5 cm

The largest gudgeon measured in Environment Agency surveys of the River Eyebrook was 15.5 cm, recorded at Stockerston Road Bridge on 18 March 1993.

Across 138 measured gudgeon, the median measured length was 12 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 gudgeon records across England →

Most recent observation2 April 2026Downstream Eyebrook Reservoir · 2 fish
Largest measured gudgeon
15.5 cm
Median length
12 cm
Fish measured
138
Survey locations
4

Individual EA measurements

Largest measured gudgeon

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

LengthSurvey dateSurvey locationSurvey ID
15.5 cm18 Mar 1993Stockerston Road Bridge54554
15 cm1 May 1996Stockerston Road Bridge54565
15 cm18 Mar 1993Stockerston Road Bridge54554
15 cm18 Mar 1993Stockerston Road Bridge54554
15 cm18 Mar 1993Stockerston Road Bridge54554
15 cm18 Mar 1993Stockerston Road Bridge54554
15 cm4 Apr 1990Stockerston Road Bridge54544
14.5 cm1 May 1996Stockerston Road Bridge54565
14.5 cm1 May 1996Stockerston Road Bridge54565
14.5 cm1 May 1996Stockerston Road Bridge54565

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

Explore the river

Where gudgeon were found

Each point marks a survey location with at least one gudgeon 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 gudgeon
Downstream Eyebrook Reservoir24 Apr 19962 Apr 20265
Stockerston Road Bridge4 Apr 199019 Mar 20149
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 gudgeon that year.

Fish measured by surveyors

Measured length distribution

See how the 138 measured fish were spread across different length ranges.

Smallest
7.5 cm
Lower quarter
11 cm
Median
12 cm
Upper quarter
13.5 cm
Largest
15.5 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 Roach

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 →