Gudgeon · Gobio gobio

Gudgeon in the Main River Isle

Largest measured gudgeon: 19.7 cm

The largest gudgeon measured in Environment Agency surveys of the Main River Isle was 19.7 cm, recorded at Cocks Bridge (Te) on 17 July 2014.

Across 838 measured gudgeon, the median measured length was 10 cm.

Surveyors recorded weights for 340 gudgeon. The median was 0.5 oz (0.015 kg) and the largest recorded weight was 2.5 oz (0.07 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 River Isle.

See gudgeon records across England →

Most recent observation16 June 2022Cocks Bridge (Te) · 7 fish

Largest measured gudgeon: 19.7 cm
Median length: 10 cm
Fish measured: 838
Survey locations: 10

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
19.7 cm	17 Jul 2014	Cocks Bridge (Te)	141754
15 cm	7 Jul 1997	Donyatt	79517
14.9 cm	22 Jun 2005	Ilford Bridges (Te)	84860
14.5 cm	23 Jun 2016	Cocks Bridge (Te)	148268
14.5 cm	22 Jun 2005	Ilford Bridges (Te)	84860
14.4 cm	19 Jun 1992	Winterhay Lane	80030
14.3 cm	23 Jun 2016	Ilford Bridges (Te)	148266
14.2 cm	7 Jul 2010	Ilford Bridges (Te)	122680
14.2 cm	19 Jun 1997	Cocks Bridge (Te)	76671
14.1 cm	7 Jul 2010	Ilford Bridges (Te)	122680

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
Cocks Bridge (Te)	18 Jun 1992	16 Jun 2022	8
Ashford Farm (Te)	29 May 1992	14 Jun 2022	14
Ilford Bridges (Te)	11 Jun 1992	23 Jun 2016	10
Midelney	11 Sept 2007	11 Jul 2013	4
Hambridge	8 Jun 1992	24 May 2011	3
Isle Brewers	9 Jun 1992	21 May 2008	3
Donyatt	25 Jun 1992	7 Jul 1997	2
Winterhay Lane	19 Jun 1992	4 Jul 1997	2
Downstream Westport Canal	14 May 1992	22 Apr 1997	2
Earnshill House	19 May 1992	19 May 1992	1

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

1992–2022

Survey records by year

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

992

093

094

095

096

897

098

099

000

001

102

303

204

205

206

307

408

109

310

311

012

213

114

015

316

017

018

019

020

021

222

Fish measured by surveyors

Measured length distribution

See how the 838 measured fish were spread across different length ranges.

Smallest: 1.2 cm
Lower quarter: 8.4 cm
Median: 10 cm
Upper quarter: 11.5 cm
Largest: 19.7 cm

0–99 mm

412

100–199 mm

426

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 340 gudgeon. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.3 oz (0.009 kg)
Median: 0.5 oz (0.015 kg)
Upper quarter: 0.8 oz (0.024 kg)
Heaviest: 2.5 oz (0.07 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 River Isle

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

European eel Stone loach Minnow Chub Dace 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 →