RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Granta

Largest measured gudgeon: 15.5 cm

The largest gudgeon measured in Environment Agency surveys of the River Granta was 15.5 cm, recorded at DS Hildersham on 14 May 2003.

Across 520 measured gudgeon, the median measured length was 10.8 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 Granta.

See gudgeon records across England →

Most recent observation10 June 2025Great Shelford · 10 fish
Largest measured gudgeon
15.5 cm
Median length
10.8 cm
Fish measured
520
Survey locations
5

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 cm14 May 2003DS Hildersham75969
15.3 cm24 Jan 1997Hildersham29409
14.8 cm27 Oct 1993Hildersham29406
14.3 cm16 May 2001DS Hildersham30860
14.3 cm27 Oct 1993Hildersham29406
14.2 cm20 May 2025Babraham (I.A.P)177117
14.2 cm16 May 2022Babraham160961
14.1 cm4 May 2016Great Shelford147985
14 cm10 Jun 2025Great Shelford177133
13.8 cm4 May 2016Great Shelford147985

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
Great Shelford24 Feb 199710 Jun 20256
Babraham29 Oct 199321 May 20254
Babraham (I.A.P)16 Apr 199120 May 202510
Hildersham15 Apr 199114 Mar 20135
DS Hildersham16 May 200114 May 20032

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

1991–2025

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 520 measured fish were spread across different length ranges.

Smallest
3.8 cm
Lower quarter
9.8 cm
Median
10.8 cm
Upper quarter
11.4 cm
Largest
15.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Granta

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

3-spined stickleback Brown / sea trout Bullhead Minnow Stone loach 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 →