Gudgeon · Gobio gobio

Gudgeon in the Louth Canal

Largest measured gudgeon: 15.2 cm

The largest gudgeon measured in Environment Agency surveys of the Louth Canal was 15.2 cm, recorded at Alvingham High Bridge on 14 May 2018.

Across 529 measured gudgeon, the median measured length was 10.4 cm.

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

See gudgeon records across England →

Most recent observation14 May 2018Alvingham High Bridge · 7 fish

Largest measured gudgeon: 15.2 cm
Median length: 10.4 cm
Fish measured: 529
Survey locations: 7

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
15.2 cm	14 May 2018	Alvingham High Bridge	152563
15.1 cm	6 Sept 1995	Alvingham High Bridge	58043
15 cm	6 Sept 1995	Alvingham High Bridge	58043
14.9 cm	6 Sept 1995	Alvingham High Bridge	58043
14.8 cm	6 Sept 1995	Alvingham High Bridge	58043
14.8 cm	6 Sept 1995	Alvingham High Bridge	58043
14.7 cm	6 Sept 1995	Alvingham High Bridge	58043
14.7 cm	6 Sept 1995	Alvingham High Bridge	58043
14.7 cm	6 Sept 1995	Alvingham High Bridge	58043
14.7 cm	6 Sept 1995	Alvingham High Bridge	58043

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
Alvingham High Bridge	8 Sept 1992	14 May 2018	8
Firebeacon	6 Sept 1995	3 Oct 2012	2
Thoresby Bridge	9 Jun 1986	16 Jun 1999	4
Brian Halls Mill	24 May 1999	24 May 1999	1
Tetney Lock	8 Sept 1995	8 Sept 1995	1
Austen Fen	13 Jun 1986	5 Sept 1995	3
Covenham Reservoir Intake	12 Jun 1986	12 Jun 1986	1

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

1986–2018

Survey records by year

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

386

087

088

089

090

091

392

093

094

595

096

097

098

399

000

001

002

003

104

005

006

007

008

009

110

011

212

013

014

115

016

017

118

Fish measured by surveyors

Measured length distribution

See how the 529 measured fish were spread across different length ranges.

Smallest: 2.8 cm
Lower quarter: 6.1 cm
Median: 10.4 cm
Upper quarter: 13.3 cm
Largest: 15.2 cm

0–99 mm

247

100–199 mm

282

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Louth Canal

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

Roach European eel 3-spined stickleback Perch Pike Dace

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 →