Gudgeon · Gobio gobio

Gudgeon in the Swannington Beck

Largest measured gudgeon: 13.4 cm

The largest gudgeon measured in Environment Agency surveys of the Swannington Beck was 13.4 cm, recorded at Alderford Common on 17 April 2013.

Across 6 measured gudgeon, the median measured length was 12.3 cm.

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

See gudgeon records across England →

Most recent observation17 April 2013Alderford Common · 2 fish

Largest measured gudgeon: 13.4 cm
Median length: 12.3 cm
Fish measured: 6
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
13.4 cm	17 Apr 2013	Alderford Common	135880
13.3 cm	17 Apr 2013	Alderford Common	135880
12.4 cm	4 Feb 2009	Felthorpe , Mill Lane Bridge	116887
12.3 cm	18 Mar 2004	Swannington Bridge , Swannington	99988
12.2 cm	16 Dec 2003	Swannington Bridge , Swannington	99983
11.3 cm	16 Dec 2003	Swannington Bridge , Swannington	99983

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
Alderford Common	17 Apr 2013	17 Apr 2013	1
Felthorpe , Mill Lane Bridge	4 Feb 2009	4 Feb 2009	1
Swannington Bridge , Swannington	16 Dec 2003	18 Mar 2004	2

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

2003–2013

Survey records by year

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

103

104

005

006

007

008

109

010

011

012

113

Fish measured by surveyors

Measured length distribution

See how the 6 measured fish were spread across different length ranges.

Smallest: 11.3 cm
Lower quarter: 12.2 cm
Median: 12.4 cm
Upper quarter: 13.1 cm
Largest: 13.4 cm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Swannington Beck

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

3-spined stickleback Bullhead 10-spined stickleback Brown / sea trout Minnow Chub

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 →