RiverFish

Gudgeon · Gobio gobio

Gudgeon in the Richmond Park SERT Baseline

Largest measured gudgeon: 15.8 cm

The largest gudgeon measured in Environment Agency surveys of the Richmond Park SERT Baseline was 15.8 cm, recorded at Richmond Park SERT Reach B on 15 July 2015.

Across 77 measured gudgeon, the median measured length was 11.9 cm.

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

See gudgeon records across England →

Most recent observation15 July 2015Richmond Park SERT Reach A · 7 fish
Largest measured gudgeon
15.8 cm
Median length
11.9 cm
Fish measured
77
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
15.8 cm15 Jul 2015Richmond Park SERT Reach B147978
14.9 cm15 Jul 2015Richmond Park SERT Reach B147978
14.6 cm15 Jul 2015Richmond Park SERT Reach B147978
14.6 cm15 Jul 2015Richmond Park SERT Reach B147978
14.4 cm14 Jul 2015Richmond Park SERT Reach D147552
14.2 cm15 Jul 2015Richmond Park SERT Reach B147978
14 cm15 Jul 2015Richmond Park SERT Reach B147978
13.8 cm15 Jul 2015Richmond Park SERT Reach B147978
13.7 cm15 Jul 2015Richmond Park SERT Reach B147978
13.5 cm15 Jul 2015Richmond Park SERT Reach B147978

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
Richmond Park SERT Reach B15 Jul 201515 Jul 20151
Richmond Park SERT Reach A15 Jul 201515 Jul 20151
Richmond Park SERT Reach D14 Jul 201514 Jul 20151
Richmond Park SERT Reach C14 Jul 201514 Jul 20151

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

2015–2015

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 77 measured fish were spread across different length ranges.

Smallest
7.7 cm
Lower quarter
10 cm
Median
11.9 cm
Upper quarter
12.9 cm
Largest
15.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Richmond Park SERT Baseline

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

Chub Dace European eel Stone loach

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 →