Gudgeon · Gobio gobio

Gudgeon in the Main River Parrett

Largest measured gudgeon: 13.8 cm

The largest gudgeon measured in Environment Agency surveys of the Main River Parrett was 13.8 cm, recorded at Gawbridge on 1 August 2023.

Across 747 measured gudgeon, the median measured length was 7 cm.

Surveyors recorded weights for 13 gudgeon. The median was 0.2 oz (0.006 kg) and the largest recorded weight was 0.6 oz (0.016 kg).

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

See gudgeon records across England →

Most recent observation6 August 2025Pibsbury · 1 fish

Largest measured gudgeon: 13.8 cm
Median length: 7 cm
Fish measured: 747
Survey locations: 8

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
13.8 cm	1 Aug 2023	Gawbridge	162856
13.5 cm	17 Sept 2009	Gawbridge	119500
13.2 cm	17 Sept 2009	Gawbridge	119500
13.1 cm	13 Aug 2013	Gawbridge	137911
13.1 cm	17 Sept 2009	Gawbridge	119500
13 cm	17 Sept 2009	Gawbridge	119500
12.8 cm	24 Jul 2025	Gawbridge	177631
12.8 cm	13 Jul 2023	Yeo Valley Creamery	162570
12.7 cm	26 Jul 2011	Gawbridge	127196
12.7 cm	17 Sept 2009	Gawbridge	119500

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
Westover Bridge	24 Jul 2009	6 Aug 2025	13
Pibsbury	23 Jul 2009	6 Aug 2025	14
Midelney	12 Aug 2009	5 Aug 2025	15
Gawbridge	17 Sept 2009	24 Jul 2025	7
Yeo Valley Creamery	1 Aug 2019	13 Jul 2023	2
Oath Lock	14 Aug 2009	8 Aug 2019	10
Kings Sedgemoor Drain Downstream Gerylake	8 Aug 2019	8 Aug 2019	1
Knapp Br.	13 Aug 2006	7 Aug 2013	9

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.

606

007

008

1009

010

1011

012

1513

014

415

016

217

018

1219

020

121

022

423

024

725

Fish measured by surveyors

Measured length distribution

See how the 747 measured fish were spread across different length ranges.

Smallest: 1.8 cm
Lower quarter: 4.2 cm
Median: 7 cm
Upper quarter: 9.5 cm
Largest: 13.8 cm

0–99 mm

594

100–199 mm

153

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 13 gudgeon. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.004 kg)
Lower quarter: 0.2 oz (0.006 kg)
Median: 0.2 oz (0.006 kg)
Upper quarter: 0.2 oz (0.007 kg)
Heaviest: 0.6 oz (0.016 kg)

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

More fish in this river

Explore the Main River Parrett

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

European eel Roach Perch Ruffe 3-spined stickleback 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 →