Gudgeon · Gobio gobio

Gudgeon in the Gatwick Stream

Largest measured gudgeon: 19.1 cm

The largest gudgeon measured in Environment Agency surveys of the Gatwick Stream was 19.1 cm, recorded at Grattons Park by St Marys Drive on 4 May 2023.

Across 584 measured gudgeon, the median measured length was 11.1 cm.

Surveyors recorded one individual weight: 1 oz (0.0283 kg).

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

See gudgeon records across England →

Most recent observation8 August 2024Riverside Gardens · 154 fish

Largest measured gudgeon: 19.1 cm
Median length: 11.1 cm
Fish measured: 584
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
19.1 cm	4 May 2023	Grattons Park by St Marys Drive	162386
17.1 cm	9 Oct 2019	Grattons Park by St Marys Drive	155806
16.6 cm	9 Oct 2019	Grattons Park by St Marys Drive	155806
16.2 cm	9 Oct 2019	Grattons Park by St Marys Drive	155806
16 cm	4 May 2006	Grattons Park Downstream of weir	116872
15.6 cm	30 Sept 2009	Riverside Gardens	119182
15.6 cm	30 Sept 2009	Riverside Gardens	119182
15.5 cm	30 Sept 2009	Riverside Gardens	119182
15.4 cm	8 Aug 2024	Riverside Gardens	166584
15.3 cm	8 Aug 2024	Riverside Gardens	166584

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
Riverside Gardens	21 Aug 1986	8 Aug 2024	6
Grattons Park by St Marys Drive	9 Oct 2019	4 May 2023	2
Grattons Park Downstream of weir	4 May 2006	4 May 2006	1
Forge Farm, Tinsley Green	17 Jul 1986	17 Jul 1986	1

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

1986–2024

Survey records by year

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

286

087

088

089

090

091

092

093

094

095

096

097

098

099

000

001

002

003

004

005

206

007

008

109

010

011

112

013

014

015

016

117

018

119

020

021

022

123

124

Fish measured by surveyors

Measured length distribution

See how the 584 measured fish were spread across different length ranges.

Smallest: 4.5 cm
Lower quarter: 9.8 cm
Median: 11.1 cm
Upper quarter: 12.5 cm
Largest: 19.1 cm

0–99 mm

151

100–199 mm

433

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 oz (0.0283 kg)

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

More fish in this river

Explore the Gatwick Stream

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

Bullhead Brown / sea trout Perch Chub Dace Roach

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 →