Gudgeon · Gobio gobio

Gudgeon in the Eau

Largest measured gudgeon: 15 cm

The largest gudgeon measured in Environment Agency surveys of the Eau was 15 cm, recorded at Scotter on 27 May 2025.

Across 474 measured gudgeon, the median measured length was 6.5 cm.

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

See gudgeon records across England →

Most recent observation27 May 2025Scotter · 111 fish

Largest measured gudgeon: 15 cm
Median length: 6.5 cm
Fish measured: 474
Survey locations: 2

Individual EA measurements

Largest measured gudgeon

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

Length	Survey date	Survey location	Survey ID
15 cm	27 May 2025	Scotter	176670
14 cm	27 May 2025	Scotter	176670
13.1 cm	27 May 2025	Scotter	176670
12.9 cm	23 Jun 2011	Scotter	126631
12.6 cm	27 May 2025	Scotter	176670
12.6 cm	27 May 2025	Scotter	176670
12.5 cm	27 May 2025	Scotter	176670
12.4 cm	25 Jun 2015	Scotter	145279
12.2 cm	27 May 2025	Scotter	176670
12.2 cm	23 Jun 2011	Scotter	126631

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 surveyed	First recorded	Last recorded	Visits finding gudgeon
Scotter	23 Aug 2006	27 May 2025	7
Trent Confluence	23 Aug 2006	3 Jun 2009	2

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

2006–2025

Survey records by year

Each bar shows how many survey visits recorded gudgeon that year.

206

007

008

109

010

111

012

113

014

115

016

117

018

119

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 474 measured fish were spread across different length ranges.

Smallest: 1.6 cm
Lower quarter: 5.3 cm
Median: 6.5 cm
Upper quarter: 9.8 cm
Largest: 15 cm

0–99 mm

365

100–199 mm

109

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Eau

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

European eel 3-spined stickleback Stone loach Perch Dace Pike

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 →