Gudgeon · Gobio gobio

Gudgeon in the River Uck

Largest measured gudgeon: 16 cm

The largest gudgeon measured in Environment Agency surveys of the River Uck was 16 cm, recorded at Buxted Bridge on 13 September 2023.

Across 1,278 measured gudgeon, the median measured length was 9.4 cm.

Surveyors recorded weights for 600 gudgeon. The median was 0.3 oz (0.008 kg) and the largest recorded weight was 1.6 oz (0.044 kg).

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

See gudgeon records across England →

Most recent observation14 August 2025Uckfield · 45 fish

Largest measured gudgeon: 16 cm
Median length: 9.4 cm
Fish measured: 1,278
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
16 cm	13 Sept 2023	Buxted Bridge	163709
16 cm	4 Sept 2015	Buxted Bridge	146661
15.3 cm	5 Sept 2007	Owlsbury Farm	107232
14.6 cm	18 Sept 2006	Owlsbury Farm	102512
14.3 cm	21 Sept 2023	Uckfield	163803
14.2 cm	2 Sept 2003	Owlsbury Farm	76920
14 cm	1 Aug 2024	Uckfield	166436
13.9 cm	2 Sept 2003	Owlsbury Farm	76920
13.8 cm	7 Aug 2024	Honey Green Caravan Park	166435
13.8 cm	21 Sept 2023	Uckfield	163803

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
Uckfield	20 Aug 2015	14 Aug 2025	8
Buxted Bridge	20 Aug 2003	13 Aug 2025	9
Isfield Weir	23 Aug 2002	7 Aug 2025	8
Honey Green Caravan Park	17 Aug 2015	7 Aug 2024	2
Upstream Isfield Gate	10 Oct 2019	14 Jul 2023	2
Lephams Bridge	3 Sept 2003	13 Sept 2018	3
Buxted Weir	8 Sept 2011	8 Sept 2011	1
Owlsbury Farm	2 Sept 2003	5 Sept 2007	5
Little Horsted	17 Sept 2003	17 Sept 2003	1
Ridgewood Bridge	3 Sept 2003	3 Sept 2003	1

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

2002–2025

Survey records by year

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

102

603

204

205

206

207

008

109

010

211

212

113

114

315

016

117

218

219

020

121

022

323

324

325

Fish measured by surveyors

Measured length distribution

See how the 1,278 measured fish were spread across different length ranges.

Smallest: 2.2 cm
Lower quarter: 7.6 cm
Median: 9.4 cm
Upper quarter: 10.6 cm
Largest: 16 cm

0–99 mm

804

100–199 mm

474

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 600 gudgeon. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.004 kg)
Median: 0.3 oz (0.008 kg)
Upper quarter: 0.4 oz (0.012 kg)
Heaviest: 1.6 oz (0.044 kg)

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

More fish in this river

Explore the River Uck

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

Stone loach Minnow Roach Bullhead Chub Brown / sea trout

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 →