RiverFish

Gudgeon · Gobio gobio

Gudgeon in the Alconbury Brook

Largest measured gudgeon: 11.3 cm

The largest gudgeon measured in Environment Agency surveys of the Alconbury Brook was 11.3 cm, recorded at Brampton Racecourse on 27 May 2015.

Across 232 measured gudgeon, the median measured length was 7.5 cm.

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

See gudgeon records across England →

Most recent observation27 May 2015Brampton Racecourse · 3 fish
Largest measured gudgeon
11.3 cm
Median length
7.5 cm
Fish measured
232
Survey locations
3

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
11.3 cm27 May 2015Brampton Racecourse144787
11.3 cm16 Oct 1989Brampton Racecourse29068
11.3 cm6 Oct 1989Alconbury Village29066
11.3 cm6 Oct 1989Alconbury Village29066
11.3 cm3 Oct 1989DS A1 Lay-by29067
11.3 cm3 Oct 1989DS A1 Lay-by29067
11.3 cm3 Oct 1989DS A1 Lay-by29067
11.3 cm3 Oct 1989DS A1 Lay-by29067
11.3 cm3 Oct 1989DS A1 Lay-by29067
10.8 cm29 Sept 1995Brampton Racecourse29076

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
Brampton Racecourse16 Oct 198927 May 20153
DS A1 Lay-by3 Oct 198924 Jun 19983
Alconbury Village6 Oct 198920 Sept 19952

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

1989–2015

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 232 measured fish were spread across different length ranges.

Smallest
4.8 cm
Lower quarter
6.3 cm
Median
7.6 cm
Upper quarter
9.3 cm
Largest
11.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Alconbury Brook

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

Pike European eel Roach Perch Chub Dace

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 →