Rudd · Scardinius erythrophthalmus

Rudd in the River US Cam

Largest measured rudd: 18.4 cm

The largest rudd measured in Environment Agency surveys of the River US Cam was 18.4 cm, recorded at Littlebury on 25 April 2019.

Across 5 measured rudd, the median measured length was 10.5 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 Cam.

See rudd records across England →

Most recent observation12 March 2025Littlebury · 1 fish

Largest measured rudd: 18.4 cm
Median length: 10.5 cm
Fish measured: 5
Survey locations: 3

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
18.4 cm	25 Apr 2019	Littlebury	154481
10.8 cm	7 May 1991	P.B.I (Trumpington Meadows)	29461
10.5 cm	12 Mar 2025	Littlebury	175950
9.3 cm	30 Sept 1993	Littlebury	29463
6.6 cm	24 Sept 2015	Audley End	146678

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
Littlebury	30 Sept 1993	12 Mar 2025	4
Audley End	24 Sept 2015	24 Sept 2015	1
P.B.I (Trumpington Meadows)	7 May 1991	7 May 1991	1

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

1991–2025

Survey records by year

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

191

092

193

094

095

096

097

098

099

000

001

002

003

004

105

006

007

008

009

010

011

012

013

014

115

016

017

018

119

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 5 measured fish were spread across different length ranges.

Smallest: 6.6 cm
Lower quarter: 9.3 cm
Median: 10.5 cm
Upper quarter: 10.8 cm
Largest: 18.4 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River US Cam

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

Roach Chub Perch Gudgeon Dace Brown / sea trout

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 →