Gudgeon · Gobio gobio

Gudgeon in the River Swift

Largest measured gudgeon: 13.3 cm

The largest gudgeon measured in Environment Agency surveys of the River Swift was 13.3 cm, recorded at Brownsover on 12 May 1987.

Across 22 measured gudgeon, the median measured length was 11.8 cm.

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

See gudgeon records across England →

Most recent observation10 February 1992Churchover · 1 fish

Largest measured gudgeon: 13.3 cm
Median length: 11.8 cm
Fish measured: 22
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
13.3 cm	12 May 1987	Brownsover	80729
13.3 cm	12 May 1987	Brownsover	80729
13.3 cm	12 May 1987	Brownsover	80729
12.8 cm	12 May 1987	Brownsover	80729
12.5 cm	12 May 1987	Brownsover	80729
12.2 cm	10 Feb 1992	Bransford Bridge	80698
12.2 cm	12 May 1987	Brownsover	80729
12.2 cm	12 May 1987	Brownsover	80729
12.2 cm	12 May 1987	Brownsover	80729
12.2 cm	12 May 1987	Churchover	80726

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
Churchover	12 May 1987	10 Feb 1992	2
Bransford Bridge	10 Feb 1992	10 Feb 1992	1
Brownsover	12 May 1987	12 May 1987	1

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

1987–1992

Survey records by year

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

287

088

089

090

091

292

Fish measured by surveyors

Measured length distribution

See how the 22 measured fish were spread across different length ranges.

Smallest: 7.6 cm
Lower quarter: 10.6 cm
Median: 11.9 cm
Upper quarter: 12.2 cm
Largest: 13.3 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Swift

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

Bullhead 3-spined stickleback Stone loach Pike Minnow 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 →