Gudgeon · Gobio gobio

Gudgeon in the River Wey South

Largest measured gudgeon: 17 cm

The largest gudgeon measured in Environment Agency surveys of the River Wey South was 17 cm, recorded at Headley Wood Farm on 13 June 2002.

Across 199 measured gudgeon, the median measured length was 11.6 cm.

Surveyors recorded weights for 8 gudgeon. The median was 0.8 oz (0.024 kg) and the largest recorded weight was 2 oz (0.058 kg).

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

See gudgeon records across England →

Most recent observation28 June 2023Dockenfield · 13 fish

Largest measured gudgeon: 17 cm
Median length: 11.6 cm
Fish measured: 199
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.

Length	Survey date	Survey location	Survey ID
17 cm	13 Jun 2002	Headley Wood Farm	51860
16 cm	13 Jun 2002	Headley Wood Farm	51860
15.1 cm	18 Nov 2003	Headley Wood Farm	78554
14.5 cm	20 Sept 2005	Headley Wood Farm	86300
14.4 cm	20 Sept 2005	Headley Wood Farm	86300
14.3 cm	20 Sept 2005	Headley Wood Farm	86300
14.3 cm	20 Sept 2005	Headley Wood Farm	86300
14.2 cm	28 Jun 2023	Dockenfield	162616
14.2 cm	18 May 2007	Dockenfield	105351
14.2 cm	22 May 2003	Dockenfield	76087

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
Dockenfield	22 May 2003	28 Jun 2023	8
Mellow Farm	17 Jun 2014	17 Jun 2014	1
Headley Wood Farm	13 Jun 2002	20 Sept 2005	3
Lower Headley Wood Farm	10 Dec 2002	6 Apr 2004	2

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

2002–2023

Survey records by year

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

202

203

204

105

006

107

108

109

110

011

012

013

214

015

016

017

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 199 measured fish were spread across different length ranges.

Smallest: 5 cm
Lower quarter: 10.2 cm
Median: 11.6 cm
Upper quarter: 12.5 cm
Largest: 17 cm

0–99 mm

100–199 mm

154

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 8 gudgeon. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.4 oz (0.012 kg)
Lower quarter: 0.8 oz (0.0228 kg)
Median: 0.8 oz (0.024 kg)
Upper quarter: 1.1 oz (0.032 kg)
Heaviest: 2 oz (0.058 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Wey South

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

Brown / sea trout Bullhead Stone loach European eel Rainbow trout Dace

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 →