Gudgeon · Gobio gobio

Gudgeon in the Earlswood Brook

Largest measured gudgeon: 14.2 cm

The largest gudgeon measured in Environment Agency surveys of the Earlswood Brook was 14.2 cm, recorded at Upstream Swt on 21 April 2023.

Across 72 measured gudgeon, the median measured length was 6.8 cm.

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

See gudgeon records across England →

Most recent observation31 May 2023Lonesome Lane Earlswood · 66 fish

Largest measured gudgeon: 14.2 cm
Median length: 6.8 cm
Fish measured: 72
Survey locations: 3

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
14.2 cm	21 Apr 2023	Upstream Swt	162383
11.9 cm	31 May 2023	Lonesome Lane Earlswood	162610
11.1 cm	21 Apr 2023	Upstream Swt	162383
10.9 cm	21 Apr 2023	Upstream Swt	162383
10.3 cm	31 May 2023	Lonesome Lane Earlswood	162610
9.7 cm	31 May 2023	Lonesome Lane Earlswood	162610
9.6 cm	31 May 2023	Lonesome Lane Earlswood	162610
9.4 cm	31 May 2023	Lonesome Lane Earlswood	162610
8.6 cm	31 May 2023	Lonesome Lane Earlswood	162610
8.5 cm	31 May 2023	Lonesome Lane Earlswood	162610

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
Lonesome Lane Earlswood	31 May 2023	31 May 2023	1
Upstream Swt	21 Apr 2023	21 Apr 2023	1
Dovers Farm	23 Jan 1992	23 Jan 1992	1

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

1992–2023

Survey records by year

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

192

093

094

095

096

097

098

099

000

001

002

003

004

005

006

007

008

009

010

011

012

013

014

015

016

017

018

019

020

021

022

223

Fish measured by surveyors

Measured length distribution

See how the 72 measured fish were spread across different length ranges.

Smallest: 4.5 cm
Lower quarter: 6.3 cm
Median: 6.8 cm
Upper quarter: 7.8 cm
Largest: 14.2 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Earlswood Brook

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

3-spined stickleback Perch Stone loach

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 →