RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Old Windsor - Bell

Largest measured gudgeon: 13.5 cm

The largest gudgeon measured in Environment Agency surveys of the River Old Windsor - Bell was 13.5 cm, recorded at Ham Loop on 1 September 2000.

Across 314 measured gudgeon, the median measured length was 10.4 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 Old Windsor - Bell.

See gudgeon records across England →

Most recent observation20 July 2024Ham Loop · 1 fish
Largest measured gudgeon
13.5 cm
Median length
10.4 cm
Fish measured
314
Survey locations
4

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
13.5 cm1 Sept 2000Ham Loop121581
13.4 cm5 Sept 2003Ham Loop77010
13.2 cm5 Sept 2013Old Windsor Main Channel138863
13 cm10 Sept 2009Old Windsor Main Channel119014
13 cm10 Sept 2009Old Windsor Main Channel119014
13 cm7 Sept 2007Ham Loop106744
13 cm8 Sept 2006Old Windsor Main Channel101380
13 cm13 Sept 2002Ham Loop72069
12.9 cm5 Sept 2013Old Windsor Main Channel138863
12.7 cm7 Sept 2005Ham Loop86738

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
Ham Loop1 Sept 200020 Jul 202418
Old Windsor Main Channel1 Sept 19955 Sept 20138
Old Windsor, Weir Pool13 Sept 20027 Sept 20052
Lower Old Windsor Main Channel7 Sept 20057 Sept 20051

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

1995–2024

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 314 measured fish were spread across different length ranges.

Smallest
3.7 cm
Lower quarter
9.4 cm
Median
10.4 cm
Upper quarter
11.3 cm
Largest
13.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Old Windsor - Bell

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

Roach Perch Pike Bleak European eel Chub

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 →