Gudgeon · Gobio gobio

Gudgeon in the River Rother

Largest measured gudgeon: 16.3 cm

The largest gudgeon measured in Environment Agency surveys of the River Rother was 16.3 cm, recorded at Stonegate on 17 September 2014.

Across 145 measured gudgeon, the median measured length was 9.5 cm.

Surveyors recorded weights for 17 gudgeon. The median was 0.4 oz (0.011 kg) and the largest recorded weight was 1.1 oz (0.031 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 Rother.

See gudgeon records across England →

Most recent observation13 October 2025Blackwall Bridge · 2 fish

Largest measured gudgeon: 16.3 cm
Median length: 9.5 cm
Fish measured: 145
Survey locations: 6

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
16.3 cm	17 Sept 2014	Stonegate	142840
15.7 cm	8 Aug 2013	Stonegate	137761
15.5 cm	17 Sept 2014	Stonegate	142840
15.5 cm	17 Sept 2014	Stonegate	142840
15.2 cm	17 Sept 2014	Stonegate	142840
15 cm	23 Aug 2016	Stonegate	149128
14.9 cm	17 Sept 2014	Stonegate	142840
14.7 cm	17 Sept 2014	Stonegate	142840
14.6 cm	17 Sept 2014	Stonegate	142840
14.1 cm	5 Aug 2025	Salehurst	180297

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
Blackwall Bridge	8 Oct 2004	13 Oct 2025	6
Bodiam	7 Jul 2006	17 Sept 2025	4
Salehurst	13 Sept 2002	5 Aug 2025	11
Witherenden Farm d/s Weir	26 Oct 2016	26 Oct 2016	1
Stonegate	8 Aug 2013	23 Aug 2016	3
u/s Iden Bridge	6 Aug 2007	6 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.

2002–2025

Survey records by year

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

102

103

204

105

206

307

108

309

210

011

012

113

114

015

416

017

018

119

020

021

022

023

024

325

Fish measured by surveyors

Measured length distribution

See how the 145 measured fish were spread across different length ranges.

Smallest: 3.1 cm
Lower quarter: 7.8 cm
Median: 9.5 cm
Upper quarter: 12 cm
Largest: 16.3 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 17 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: 0.3 oz (0.008 kg)
Median: 0.4 oz (0.011 kg)
Upper quarter: 0.6 oz (0.018 kg)
Heaviest: 1.1 oz (0.031 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 Rother

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

Roach Chub Perch European eel Pike Bleak

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 →