Gudgeon · Gobio gobio

Gudgeon in the Old West River

Largest measured gudgeon: 13.8 cm

The largest gudgeon measured in Environment Agency surveys of the Old West River was 13.8 cm, recorded at Smithy Fen Farm on 29 October 1991.

Across 253 measured gudgeon, the median measured length was 9 cm.

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

See gudgeon records across England →

Most recent observation13 September 2023Stretham Old Engine · 3 fish

Largest measured gudgeon: 13.8 cm
Median length: 9 cm
Fish measured: 253
Survey locations: 8

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
13.8 cm	29 Oct 1991	Smithy Fen Farm	29978
13.3 cm	13 Nov 1996	Hermitage Marina	29990
12.3 cm	7 Jul 1988	Australia Farm	29971
12 cm	28 Sept 2005	Smithy Fen Farm	86629
11.8 cm	9 Sept 1997	Weathersome Common	29999
11.8 cm	15 Nov 1996	Flat Bridge Farm	29992
11.5 cm	17 Oct 2006	Smithy Fen Farm	101918
11.3 cm	10 Oct 2000	Hermitage Marina	30795
11.3 cm	30 Sept 1997	Willow Grange Farm	30004
11.3 cm	25 Sept 1997	Australia Farm	30003

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
Stretham Old Engine	8 Jul 1988	13 Sept 2023	7
Hermitage Marina	4 Jul 1988	11 Sept 2017	9
Willow Grange Farm	8 Jul 1988	26 Jun 2014	7
Smithy Fen Farm	6 Jul 1988	24 Sept 2009	7
Flat Bridge Farm	5 Jul 1988	17 Sept 2009	9
Weathersome Common	26 Jul 1988	10 Oct 2006	7
Australia Farm	7 Jul 1988	25 Sept 1997	4
Ewell Fen	7 Jul 1988	30 Oct 1991	2

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

1988–2023

Survey records by year

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

888

089

090

891

092

693

094

095

496

397

098

099

200

001

002

403

104

205

506

107

008

409

010

011

012

013

114

015

016

217

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 253 measured fish were spread across different length ranges.

Smallest: 4.3 cm
Lower quarter: 8.3 cm
Median: 9 cm
Upper quarter: 9.8 cm
Largest: 13.8 cm

0–99 mm

194

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Old West River

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

Perch Roach Pike Bitterling Tench 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 →