RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Adur East Arm

Largest measured gudgeon: 18.2 cm

The largest gudgeon measured in Environment Agency surveys of the River Adur East Arm was 18.2 cm, recorded at Stairbridge Lane on 21 September 2010.

Across 1,419 measured gudgeon, the median measured length was 9 cm.

Surveyors recorded weights for 856 gudgeon. The median was 0.2 oz (0.007 kg) and the largest recorded weight was 1.9 oz (0.053 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 Adur East Arm.

See gudgeon records across England →

Most recent observation7 May 2026Wortleford Bridge · 1 fish
Largest measured gudgeon
18.2 cm
Median length
9 cm
Fish measured
1,419
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.

LengthSurvey dateSurvey locationSurvey ID
18.2 cm21 Sept 2010Stairbridge Lane124377
15.5 cm5 Aug 2025Burgess Hill STW177818
15.5 cm5 Aug 2025Burgess Hill STW177818
15.5 cm15 May 2014Wortleford Bridge140899
15 cm15 May 2014Wortleford Bridge140899
15 cm23 Jul 2002Vale Bridge61440
15 cm23 Jul 2002Vale Bridge61440
14.9 cm28 Jul 2004Burgess Hill STW80841
14.9 cm16 Jun 1997Vale Bridge72524
14.7 cm5 Aug 2025Burgess Hill STW177818

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 surveyedFirst recordedLast recordedVisits finding gudgeon
Wortleford Bridge15 May 20147 May 20262
Burgess Hill STW8 Aug 20025 Aug 20257
Nymans Farm, Shermanbury17 Jul 202417 Jul 20241
Hookers Farm4 Aug 199711 Jul 20246
U/s Twineham Footbridge24 Apr 201410 Jul 20243
Stairbridge Lane28 Jul 199714 Aug 201812
Shermanbury Place GS4 Sept 20144 Sept 20141
Downstream Wineham Bridge21 Jul 200811 Aug 20103
Shermanbury5 Sept 200230 Sept 20042
Vale Bridge16 Jun 199723 Jul 20022

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

1997–2026

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 1,419 measured fish were spread across different length ranges.

Smallest
2.2 cm
Lower quarter
7.2 cm
Median
9 cm
Upper quarter
11 cm
Largest
18.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 856 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
0.2 oz (0.007 kg)
Upper quarter
0.5 oz (0.014 kg)
Heaviest
1.9 oz (0.053 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 Adur East Arm

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

Perch Roach Chub European eel Pike Dace

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 →