Gudgeon · Gobio gobio

Gudgeon in the Main Semington Brook

Largest measured gudgeon: 15.6 cm

The largest gudgeon measured in Environment Agency surveys of the Main Semington Brook was 15.6 cm, recorded at Pantry Bridge (Te) on 21 May 1997.

Across 64 measured gudgeon, the median measured length was 10.1 cm.

Surveyors recorded weights for 62 gudgeon. The median was 0.4 oz (0.0125 kg) and the largest recorded weight was 1.7 oz (0.047 kg).

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

See gudgeon records across England →

Most recent observation2 August 2012Mill Farm Bulkington · 1 fish

Largest measured gudgeon: 15.6 cm
Median length: 10.1 cm
Fish measured: 64
Survey locations: 6

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
15.6 cm	21 May 1997	Pantry Bridge (Te)	77216
15 cm	21 May 1997	Pantry Bridge (Te)	77216
14.9 cm	21 May 1997	Pantry Bridge (Te)	77216
14.7 cm	17 Jun 1997	Oxen Leaze Farm (Se-01)	83018
14.5 cm	14 Aug 2003	Pantry Bridge (Te)	76669
14.4 cm	23 Aug 2005	Pantry Bridge (Te)	85626
14.3 cm	21 May 1997	Pantry Bridge (Te)	77216
14.2 cm	17 Jun 1997	Oxen Leaze Farm (Se-01)	83018
14.1 cm	29 Sept 2004	Pantry Bridge (Te)	82687
14 cm	10 Jul 1997	Worton	77208

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
Whaddon Grove Farm	2 Aug 2012	2 Aug 2012	1
Mill Farm Bulkington	2 Aug 2012	2 Aug 2012	1
Pantry Bridge (Te)	21 May 1997	12 Jul 2006	5
Oxen Leaze Farm (Se-01)	17 Jun 1997	12 Sept 2001	2
Norney Bridge	2 Aug 2001	2 Aug 2001	1
Worton	10 Jul 1997	10 Jul 1997	1

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

1997–2012

Survey records by year

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

397

098

099

000

201

002

103

104

105

106

007

008

009

010

011

212

Fish measured by surveyors

Measured length distribution

See how the 64 measured fish were spread across different length ranges.

Smallest: 6.2 cm
Lower quarter: 8.9 cm
Median: 10.1 cm
Upper quarter: 12.1 cm
Largest: 15.6 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 62 gudgeon. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.002 kg)
Lower quarter: 0.3 oz (0.008 kg)
Median: 0.4 oz (0.0125 kg)
Upper quarter: 0.8 oz (0.0222 kg)
Heaviest: 1.7 oz (0.047 kg)

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

More fish in this river

Explore the Main Semington Brook

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

Brown / sea trout Roach Stone loach Dace Minnow 3-spined stickleback

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 →