Gudgeon · Gobio gobio

Gudgeon in the River Lymington

Largest measured gudgeon: 15 cm

The largest gudgeon measured in Environment Agency surveys of the River Lymington was 15 cm, recorded at Bolderford Bridge on 18 July 2025.

Across 85 measured gudgeon, the median measured length was 8.2 cm.

Surveyors recorded weights for 66 gudgeon. The median was 0.2 oz (0.006 kg) and the largest recorded weight was 0.8 oz (0.023 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 Lymington.

See gudgeon records across England →

Most recent observation18 July 2025Bolderford Bridge · 3 fish

Largest measured gudgeon: 15 cm
Median length: 8.2 cm
Fish measured: 85
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
15 cm	18 Jul 2025	Bolderford Bridge	178876
12.7 cm	11 Sept 2001	Bolderford Bridge	73524
11.2 cm	18 Jul 2025	Bolderford Bridge	178876
10.8 cm	23 Aug 2002	Ivywood	55130
10.7 cm	13 Aug 2007	Puttle's Bridge	108127
10.6 cm	6 Aug 2013	Bolderford Bridge	137782
10.4 cm	23 Aug 2002	Ivywood	55130
10.3 cm	5 Nov 2003	Ivywood	78320
10.2 cm	10 Aug 2007	Bolderford Bridge	107894
10.2 cm	4 Aug 2004	Ivywood	80897

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
Bolderford Bridge	11 Sept 2001	18 Jul 2025	4
Fletchers Water	11 Jul 2019	11 Jul 2019	1
Ivywood	23 Aug 2002	6 Aug 2013	5
Puttle's Bridge	13 Aug 2007	13 Aug 2007	1

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

2001–2025

Survey records by year

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

101

102

103

104

005

106

207

008

009

010

011

012

213

014

015

016

017

018

119

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 85 measured fish were spread across different length ranges.

Smallest: 4.4 cm
Lower quarter: 6.3 cm
Median: 8.2 cm
Upper quarter: 9.5 cm
Largest: 15 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 66 gudgeon. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.003 kg)
Median: 0.2 oz (0.006 kg)
Upper quarter: 0.4 oz (0.01 kg)
Heaviest: 0.8 oz (0.023 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 Lymington

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

Brown / sea trout Bullhead Minnow Stone loach Brook lamprey 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 →