Gudgeon · Gobio gobio

Gudgeon in the River Chertsey - Shepperton

Largest measured gudgeon: 13.9 cm

The largest gudgeon measured in Environment Agency surveys of the River Chertsey - Shepperton was 13.9 cm, recorded at Chertsey Main on 14 September 2009.

Across 403 measured gudgeon, the median measured length was 10.2 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 Chertsey - Shepperton.

See gudgeon records across England →

Most recent observation6 September 2013Chertsey Main · 49 fish

Largest measured gudgeon: 13.9 cm
Median length: 10.2 cm
Fish measured: 403
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
13.9 cm	14 Sept 2009	Chertsey Main	119042
13.6 cm	6 Sept 2013	Chertsey Main	138733
13.6 cm	7 Sept 2012	Chertsey Main	133533
13.5 cm	6 Sept 2013	Chertsey Main	138733
13.4 cm	6 Sept 2013	Chertsey Main	138733
13.2 cm	14 Sept 2009	Chertsey Main	119042
13.1 cm	6 Sept 2013	Chertsey Main	138733
13.1 cm	14 Sept 2009	Chertsey Main	119042
13.1 cm	14 Sept 2009	Chertsey Main	119042
13 cm	13 Sept 2010	Chertsey Main	124108

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
Chertsey Main	20 Sept 1995	6 Sept 2013	7
Chertsey Weir Pool	1 Sept 1995	1 Sept 1995	1

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

1995–2013

Survey records by year

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

295

096

097

098

099

100

001

002

003

004

105

006

007

008

109

110

011

112

113

Fish measured by surveyors

Measured length distribution

See how the 403 measured fish were spread across different length ranges.

Smallest: 4.2 cm
Lower quarter: 7.6 cm
Median: 10.2 cm
Upper quarter: 11.2 cm
Largest: 13.9 cm

0–99 mm

178

100–199 mm

225

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Chertsey - Shepperton

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

Bleak Chub European eel Perch Pike 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 →