RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Glaven

Largest measured gudgeon: 14.7 cm

The largest gudgeon measured in Environment Agency surveys of the River Glaven was 14.7 cm, recorded at Upstream Glandford Mill on 18 March 1991.

Across 334 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 Glaven.

See gudgeon records across England →

Most recent observation14 June 2017Upstream Glandford Mill · 4 fish
Largest measured gudgeon
14.7 cm
Median length
10.8 cm
Fish measured
334
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
14.7 cm18 Mar 1991Upstream Glandford Mill16845
14.7 cm18 Mar 1991Upstream Glandford Mill16845
14.7 cm18 Mar 1991Upstream Glandford Mill16845
14.6 cm29 Mar 1994Upstream Glandford Mill16852
14.5 cm29 Mar 1994Upstream Glandford Mill16852
14.5 cm18 Mar 1991Upstream Glandford Mill16845
14.3 cm16 May 2002Upstream Glandford Mill51963
14.3 cm18 Mar 1991Upstream Glandford Mill16845
14.2 cm29 Mar 1994Upstream Glandford Mill16852
14.2 cm18 Mar 1991Upstream Glandford Mill16845

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
Upstream Glandford Mill20 Jan 198814 Jun 20179
Upstream Wiveton Bridge19 Mar 19912 Jun 20115
Letheringsett15 May 200826 May 20112
Cley Sluice9 Jul 19999 Jul 19991

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

1988–2017

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 334 measured fish were spread across different length ranges.

Smallest
2.4 cm
Lower quarter
9.4 cm
Median
10.8 cm
Upper quarter
11.8 cm
Largest
14.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Glaven

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

Bullhead 3-spined stickleback European eel Brook lamprey Pike Perch

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 →