Rudd · Scardinius erythrophthalmus

Rudd in the Relief Channel

Largest measured rudd: 29.8 cm

The largest rudd measured in Environment Agency surveys of the Relief Channel was 29.8 cm, recorded at Wiggenhall Bridge on 15 September 1993.

Across 45 measured rudd, the median measured length was 8.3 cm.

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

See rudd records across England →

Most recent observation9 August 2023Thiefgate Lane Pylons · 4 fish

Largest measured rudd: 29.8 cm
Median length: 8.3 cm
Fish measured: 45
Survey locations: 11

Individual EA measurements

Largest measured rudd

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

Length	Survey date	Survey location	Survey ID
29.8 cm	15 Sept 1993	Wiggenhall Bridge	30273
22.3 cm	7 Sept 1993	Stow Bridge	30268
17.8 cm	21 Aug 2000	Denver Sluice	30816
17.5 cm	8 Aug 2023	Denver Sluice	162898
17.3 cm	1 Sept 1993	Denver Sluice	30264
15.3 cm	8 Aug 2023	Denver Sluice	162898
10.4 cm	9 Aug 2017	Wiggenhall Bridge	151144
10.3 cm	10 Sept 1993	Holme Farm Magdalen	30270
9.8 cm	11 Oct 1991	Saddlebow Bridge	30262
9.6 cm	8 Aug 2023	Denver Sluice	162898

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 surveyed	First recorded	Last recorded	Visits finding rudd
Thiefgate Lane Pylons	9 Aug 2023	9 Aug 2023	1
Denver Sluice	1 Sept 1993	8 Aug 2023	3
Wiggenhall Bridge	10 Oct 1991	9 Aug 2017	3
DS Denver Residual Sluice (Eel Monitoring)	18 Jun 2014	18 Jun 2014	1
Stow Bridge	7 Sept 1993	19 Aug 2008	2
Polver Farm Magdalen	17 Aug 2005	17 Aug 2005	1
Holme Farm Magdalen	4 Oct 1991	10 Sept 1993	2
Downham Market STW	6 Sept 1993	6 Sept 1993	1
DS Downham Bridge	3 Sept 1993	3 Sept 1993	1
Saddlebow Bridge	11 Oct 1991	11 Oct 1991	1
Magdalen Bridge	16 Sept 1988	8 Oct 1991	2

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

1988–2023

Survey records by year

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

188

089

090

491

092

693

094

095

096

097

098

099

100

001

002

003

004

105

006

007

108

009

010

011

012

013

114

015

016

117

018

019

020

021

022

223

Fish measured by surveyors

Measured length distribution

See how the 45 measured fish were spread across different length ranges.

Smallest: 5.1 cm
Lower quarter: 7.8 cm
Median: 8.3 cm
Upper quarter: 9.3 cm
Largest: 29.8 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Relief Channel

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

Perch Roach Ruffe Zander Pike European eel

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 →