Gudgeon · Gobio gobio

Gudgeon in the River Main Congresbury Yeo

Largest measured gudgeon: 16 cm

The largest gudgeon measured in Environment Agency surveys of the River Main Congresbury Yeo was 16 cm, recorded at Iwood on 12 October 2006.

Across 25 measured gudgeon, the median measured length was 11.3 cm.

Surveyors recorded weights for 23 gudgeon. The median was 0.7 oz (0.02 kg) and the largest recorded weight was 1.6 oz (0.044 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 Main Congresbury Yeo.

See gudgeon records across England →

Most recent observation26 September 2013East Hewish · 1 fish

Largest measured gudgeon: 16 cm
Median length: 11.3 cm
Fish measured: 25
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
16 cm	12 Oct 2006	Iwood	101804
14.8 cm	27 Aug 1999	Iwood Bridge	75869
14.5 cm	27 Aug 1999	Iwood Bridge	75869
14.4 cm	12 Oct 2006	Iwood	101804
14.1 cm	27 Aug 1999	Iwood Bridge	75869
13.4 cm	12 Oct 2006	Iwood	101804
12.5 cm	10 Aug 2012	Iwood	132855
12.4 cm	27 Aug 1999	Iwood Bridge	75869
12 cm	27 Aug 1999	Iwood Bridge	75869
11.7 cm	11 Aug 1994	Iwood Bridge	79704

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
East Hewish	26 Jul 1994	26 Sept 2013	2
Iwood	12 Oct 2006	10 Aug 2012	2
Congresbury Church	1 Sept 1999	1 Sept 1999	1
Iwood Bridge	11 Aug 1994	27 Aug 1999	2

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

1994–2013

Survey records by year

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

294

095

096

097

098

299

000

001

002

003

004

005

106

007

008

009

010

011

112

113

Fish measured by surveyors

Measured length distribution

See how the 25 measured fish were spread across different length ranges.

Smallest: 7.2 cm
Lower quarter: 10.8 cm
Median: 11.3 cm
Upper quarter: 12.5 cm
Largest: 16 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 23 gudgeon. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.003 kg)
Lower quarter: 0.6 oz (0.0165 kg)
Median: 0.7 oz (0.02 kg)
Upper quarter: 1 oz (0.0295 kg)
Heaviest: 1.6 oz (0.044 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 Main Congresbury Yeo

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

European eel Stone loach Brown / sea trout Bullhead Roach 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 →