Gudgeon · Gobio gobio

Gudgeon in the River Ember FAS

Largest measured gudgeon: 14.1 cm

The largest gudgeon measured in Environment Agency surveys of the River Ember FAS was 14.1 cm, recorded at Downstream Esher STW on 15 July 1986.

Across 78 measured gudgeon, the median measured length was 10.8 cm.

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

See gudgeon records across England →

Most recent observation5 October 2023Below Island Barn Weir · 3 fish

Largest measured gudgeon: 14.1 cm
Median length: 10.8 cm
Fish measured: 78
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
14.1 cm	15 Jul 1986	Downstream Esher STW	103272
13.6 cm	16 Nov 2006	Old Ember Channel opposite Orchard Lane	102800
13.2 cm	15 Jul 1986	Downstream Esher STW	103272
13.2 cm	15 Jul 1986	Downstream Esher STW	103272
13.2 cm	15 Jul 1986	Downstream Esher STW	103272
13.1 cm	12 Oct 2009	Old Ember Channel opposite Orchard Lane	119987
13 cm	16 Nov 2006	Old Ember Channel opposite Orchard Lane	102800
13 cm	15 Jul 1986	Downstream Esher STW	103272
13 cm	15 Jul 1986	Downstream Esher STW	103272
12.9 cm	12 Oct 2009	Old Ember Channel opposite Orchard Lane	119987

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
Below Island Barn Weir	28 May 1993	5 Oct 2023	7
Old Ember Channel opposite Orchard Lane	16 Nov 2006	12 Oct 2009	2
Downstream Esher STW	15 Jul 1986	14 May 1993	3
Upstream Esher STW	22 May 1990	22 May 1990	1

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

1986–2023

Survey records by year

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

186

087

088

089

290

091

092

293

094

095

096

097

098

099

000

001

102

003

004

105

206

007

108

109

010

011

012

113

014

015

016

017

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 78 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 9.4 cm
Median: 10.9 cm
Upper quarter: 12 cm
Largest: 14.1 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ember FAS

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

European eel Roach Perch Pike Dace 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 →