RiverFish

Rudd · Scardinius erythrophthalmus

Rudd in the River Ely Ouse

Largest measured rudd: 17.1 cm

The largest rudd measured in Environment Agency surveys of the River Ely Ouse was 17.1 cm, recorded at Little Thetford on 10 October 2023.

Across 369 measured rudd, the median measured length was 8.4 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 Ely Ouse.

See rudd records across England →

Most recent observation10 October 2023Little Thetford · 15 fish
Largest measured rudd
17.1 cm
Median length
8.4 cm
Fish measured
369
Survey locations
10

Individual EA measurements

Largest measured rudd

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
17.1 cm10 Oct 2023Little Thetford163574
17 cm10 Oct 2023Little Thetford163574
16.8 cm3 Aug 1993Queen Adelaide29948
16.7 cm9 Sept 2011Ten Mile Bank127854
16.4 cm9 Sept 2011Ten Mile Bank127854
16.2 cm10 Oct 2023Little Thetford163574
15.3 cm4 Aug 2000Queen Adelaide30841
14.3 cm7 Sept 2011Sandhill Bridge127755
14.3 cm29 Aug 1996Brandon Creek29962
14.3 cm29 Aug 1996Brandon Creek29962

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where rudd were found

Each point marks a survey location with at least one rudd 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 rudd
Little Thetford6 Oct 198710 Oct 202315
Sandhill Bridge10 Sept 199019 Sept 202313
Ten Mile Bank15 Aug 20004 Oct 20176
Wissey Outfall4 Sept 199025 Sept 20062
Brandon Creek27 Sept 199018 Sept 20063
Plantation House23 Aug 199614 Sept 20063
Branch Bridge20 Aug 199612 Sept 20062
Queen Adelaide3 Aug 199311 Sept 20067
Ely High Bridge20 Sept 19908 Sept 20065
Denver17 Aug 200012 Sept 20052

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

1987–2023

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 369 measured fish were spread across different length ranges.

Smallest
4.7 cm
Lower quarter
7.6 cm
Median
8.4 cm
Upper quarter
9.9 cm
Largest
17.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ely Ouse

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

Perch Roach Common bream Ruffe Pike Zander

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 →