RiverFish

Rudd · Scardinius erythrophthalmus

Rudd in the River US Lt Ouse

Largest measured rudd: 33.3 cm

The largest rudd measured in Environment Agency surveys of the River US Lt Ouse was 33.3 cm, recorded at US Knettishall Heath on 18 May 1988.

Across 73 measured rudd, the median measured length was 27.3 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 US Lt Ouse.

See rudd records across England →

Most recent observation11 July 2024Blo Norton Bridge · 1 fish
Largest measured rudd
33.3 cm
Median length
27.3 cm
Fish measured
73
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
33.3 cm18 May 1988US Knettishall Heath30137
32.3 cm18 May 1988US Knettishall Heath30137
31.8 cm18 May 1988US Knettishall Heath30137
31.3 cm18 Feb 1993US Knettishall Heath30157
31.3 cm18 May 1988US Knettishall Heath30137
30.8 cm18 May 1988US Knettishall Heath30137
30.3 cm18 Feb 1993US Knettishall Heath30157
30.3 cm18 May 1988US Knettishall Heath30137
29.8 cm18 Feb 1993US Knettishall Heath30157
29.8 cm21 Apr 1989US Knettishall Heath30143

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
Blo Norton Bridge11 Jul 202411 Jul 20241
Knettishall Heath19 Jan 200020 Nov 20182
Santon Downham15 Jun 199029 Oct 20123
DS BTO Channel26 Jan 200026 Jan 20001
Barnham Common24 Jan 200024 Jan 20001
Rushford Bridge19 Feb 199321 Jan 20003
Blo Norton Ford17 May 19881 Dec 19952
US Knettishall Heath18 May 198818 Feb 19933
Two Mile Bottom18 Jun 199018 Jun 19901
Black Carr20 Jul 198820 Jul 19881

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

1988–2024

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 73 measured fish were spread across different length ranges.

Smallest
6.3 cm
Lower quarter
12.8 cm
Median
27.3 cm
Upper quarter
29.3 cm
Largest
33.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River US Lt Ouse

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

Bullhead Pike Dace European eel Gudgeon Perch

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 →