Gudgeon · Gobio gobio

Gudgeon in the Chad Brook (Main Reaches)

Largest measured gudgeon: 14.5 cm

The largest gudgeon measured in Environment Agency surveys of the Chad Brook (Main Reaches) was 14.5 cm, recorded at Village Hall on 21 January 1983.

Across 568 measured gudgeon, the median measured length was 9.6 cm.

Surveyors recorded one individual weight: 1.3 oz (0.036 kg).

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

See gudgeon records across England →

Most recent observation2 July 2026Broad Meadows · 12 fish

Largest measured gudgeon: 14.5 cm
Median length: 9.6 cm
Fish measured: 568
Survey locations: 2

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
14.5 cm	21 Jan 1983	Village Hall	101138
14 cm	13 May 1994	Broad Meadows	13829
13.2 cm	13 May 1994	Broad Meadows	13829
13.1 cm	6 May 1988	Broad Meadows	13824
13.1 cm	28 Jan 1986	Broad Meadows	13821
12.8 cm	25 May 2000	Broad Meadows	15504
12.6 cm	19 Jan 1983	Broad Meadows	101137
12.4 cm	1 Jun 2006	Broad Meadows	90854
12.4 cm	25 May 2000	Broad Meadows	15504
12.4 cm	6 May 1988	Broad Meadows	13824

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
Broad Meadows	19 Jan 1983	2 Jul 2026	11
Village Hall	21 Jan 1983	29 Jan 1986	2

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

1983–2026

Survey records by year

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

283

084

085

286

087

188

089

090

091

092

093

194

095

096

097

098

099

100

001

002

003

004

005

106

007

008

009

110

011

012

013

114

015

016

017

018

019

020

121

022

023

124

025

126

Fish measured by surveyors

Measured length distribution

See how the 568 measured fish were spread across different length ranges.

Smallest: 3.8 cm
Lower quarter: 8.5 cm
Median: 9.6 cm
Upper quarter: 10.3 cm
Largest: 14.5 cm

0–99 mm

334

100–199 mm

234

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight: 1.3 oz (0.036 kg)

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

More fish in this river

Explore the Chad Brook (Main Reaches)

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

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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 →