Gudgeon · Gobio gobio

Gudgeon in the River Sunbury - Molesey

Largest measured gudgeon: 13.5 cm

The largest gudgeon measured in Environment Agency surveys of the River Sunbury - Molesey was 13.5 cm, recorded at Sunbury Weirpool on 13 September 2011.

Across 380 measured gudgeon, the median measured length was 10.7 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 Sunbury - Molesey.

See gudgeon records across England →

Most recent observation10 September 2013Sunbury Weirpool · 45 fish

Largest measured gudgeon: 13.5 cm
Median length: 10.7 cm
Fish measured: 380
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.

Length	Survey date	Survey location	Survey ID
13.5 cm	13 Sept 2011	Sunbury Weirpool	128023
13.5 cm	13 Sept 2007	Hampton to Molesey	106768
13.5 cm	13 Sept 2007	Hampton to Molesey	106768
13.3 cm	13 Sept 2011	Sunbury Weirpool	128023
12.9 cm	14 Sept 2010	Sunbury Weirpool	123972
12.7 cm	14 Sept 2010	Sunbury Weirpool	123972
12.4 cm	13 Sept 2007	Hampton to Molesey	106768
12.4 cm	13 Sept 2007	Hampton to Molesey	106768
12.4 cm	13 Sept 2007	Hampton to Molesey	106768
12.4 cm	13 Sept 2007	Hampton to Molesey	106768

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
Upstream Walton Intake	13 Sept 2007	10 Sept 2013	3
Sunbury Weirpool	1 Sept 2000	10 Sept 2013	9
Downstream Walton Intake	13 Sept 2007	14 Sept 2011	3
Sunbury Main Channel	1 Sept 1995	13 Sept 2007	5
Hampton to Molesey	13 Sept 2007	13 Sept 2007	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.

195

096

097

098

099

200

201

102

003

104

105

106

407

008

109

210

311

012

213

Fish measured by surveyors

Measured length distribution

See how the 380 measured fish were spread across different length ranges.

Smallest: 2.9 cm
Lower quarter: 6.5 cm
Median: 10.7 cm
Upper quarter: 11.4 cm
Largest: 13.5 cm

0–99 mm

154

100–199 mm

226

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Sunbury - Molesey

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

Dace Roach Perch Pike Bleak European eel

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 →