RiverFish

Gudgeon · Gobio gobio

Gudgeon in the Bow Lake

Largest measured gudgeon: 14.6 cm

The largest gudgeon measured in Environment Agency surveys of the Bow Lake was 14.6 cm, recorded at Bow Lake Fish Farm Upper on 27 June 2025.

Across 134 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 Bow Lake.

See gudgeon records across England →

Most recent observation27 June 2025Leyland's Farm · 45 fish
Largest measured gudgeon
14.6 cm
Median length
7.5 cm
Fish measured
134
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
14.6 cm27 Jun 2025Bow Lake Fish Farm Upper177103
14 cm31 Jul 2014Bow lake fish farm142058
13.9 cm27 Jun 2025Bow Lake Fish Farm Upper177103
13.4 cm31 Jul 2014Bow lake fish farm142058
12.8 cm31 Jul 2014Bow lake fish farm142058
12.5 cm27 Jun 2025Bow Lake Fish Farm Upper177103
12.5 cm31 Jul 2014Bow lake fish farm142058
12.5 cm31 Jul 2014Bow lake fish farm142058
12.4 cm31 Jul 2014Upstream of Leylands Farm142061
12.1 cm27 Jun 2025Bow Lake Fish Farm Upper177103

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
Leyland's Farm1 Sept 201127 Jun 20252
Bow Lake Fish Farm Upper27 Jun 202527 Jun 20251
Upstream of Leylands Farm31 Jul 201431 Jul 20141
Bow lake fish farm26 Oct 200931 Jul 20142

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

2009–2025

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 134 measured fish were spread across different length ranges.

Smallest
2.8 cm
Lower quarter
6.3 cm
Median
7.6 cm
Upper quarter
10.3 cm
Largest
14.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bow Lake

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

3-spined stickleback Stone loach European eel Roach Tench

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 →