RiverFish

Rudd · Scardinius erythrophthalmus

Rudd in the River Middle Ouse

Largest measured rudd: 25.3 cm

The largest rudd measured in Environment Agency surveys of the River Middle Ouse was 25.3 cm, recorded at Castle Hills Huntingdon on 2 October 1989.

Across 162 measured rudd, the median measured length was 10.8 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 Middle Ouse.

See rudd records across England →

Most recent observation2 October 2019US Dolphin Meadow · 11 fish
Largest measured rudd
25.3 cm
Median length
10.8 cm
Fish measured
162
Survey locations
25

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
25.3 cm2 Oct 1989Castle Hills Huntingdon29165
24.8 cm2 Oct 1989Castle Hills Huntingdon29165
23.8 cm5 Aug 1999Pike & Eel29221
21.3 cm4 Aug 1999Mow Fen29220
21.3 cm7 Aug 1992Hartford Church29178
21.3 cm2 Oct 1989Castle Hills Huntingdon29165
20.8 cm5 Aug 1999Pike & Eel29221
19.8 cm5 Aug 1999Pike & Eel29221
19.3 cm5 Aug 1999Pike & Eel29221
17.3 cm2 Oct 1989Castle Hills Huntingdon29165

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
US Dolphin Meadow30 Jul 19992 Oct 20197
Houghton10 Aug 19921 Oct 20193
Kelpie Marina2 Oct 20182 Oct 20181
Portholme Meadow20 Jul 200429 Sept 20164
Offord Triangle21 Aug 201521 Aug 20151
Holywell14 Aug 199225 Sept 20138
Pike & Eel8 Nov 198913 Aug 20089
Hermitage Lock Drain (Eel Monitoring)25 Apr 200725 Apr 20071
Hartford Church29 Sept 198931 Jul 20066
Mow Fen9 Sept 19924 Aug 20034
St Ives11 Sept 199225 Jul 20033
Earith17 Aug 199917 Aug 19991
Bluntisham6 Aug 19996 Aug 19991
Hemingford Abbots13 Aug 199226 Jul 19992
Hartford12 Oct 198913 Jul 19993
Little Paxton18 Aug 19898 Sept 19982
DS Barford Power Station26 Aug 199826 Aug 19981
Blunham13 Aug 199813 Aug 19981
Willington11 Aug 199811 Aug 19981
Dolphin Meadow13 Aug 199213 Aug 19921
Barford Bridge17 Jun 199217 Jun 19921
Houghton Lock3 Oct 19893 Oct 19891
Castle Hills Huntingdon2 Oct 19892 Oct 19891
St Neots Common14 Aug 198914 Aug 19891
Renhold2 Aug 19892 Aug 19891

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

1989–2019

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 162 measured fish were spread across different length ranges.

Smallest
5.6 cm
Lower quarter
7.4 cm
Median
10.8 cm
Upper quarter
13.8 cm
Largest
25.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Middle Ouse

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

Perch Roach Pike Bleak Gudgeon Common bream

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 →