Rudd · Scardinius erythrophthalmus

Rudd in the River Mole

Largest measured rudd: 33.4 cm

The largest rudd measured in Environment Agency surveys of the River Mole was 33.4 cm, recorded at Horley Swimming Baths on 28 September 2004.

Across 31 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 Mole.

See rudd records across England →

Most recent observation9 July 2025Downstream Gatwick · 1 fish

Largest measured rudd: 33.4 cm
Median length: 8.4 cm
Fish measured: 31
Survey locations: 5

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
33.4 cm	28 Sept 2004	Horley Swimming Baths	82760
19.2 cm	17 Jul 1992	Horley Swimming Baths	103000
18.3 cm	19 Sept 1985	Upstream Horley STW	103348
18.2 cm	17 Jul 1992	Horley Swimming Baths	103000
17.5 cm	17 Jul 1992	Horley Swimming Baths	103000
15.2 cm	9 Jul 2025	Downstream Gatwick	178706
14.8 cm	19 Sept 1985	Upstream Horley STW	103348
12.9 cm	17 Jul 1992	Horley Swimming Baths	103000
10.5 cm	20 Sept 2012	Meath Green Farm, Horley	133762
10.1 cm	1 Oct 2009	Meath Green Farm, Horley	119741

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
Downstream Gatwick	8 Sept 1992	9 Jul 2025	3
Meath Green Farm, Horley	30 Sept 2008	20 Sept 2012	3
Box Hill	2 Nov 2006	2 Nov 2006	1
Horley Swimming Baths	17 Jul 1992	28 Sept 2004	2
Upstream Horley STW	19 Sept 1985	19 Sept 1985	1

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

1985–2025

Survey records by year

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

185

086

087

088

089

090

091

292

093

094

095

096

097

098

099

000

001

002

003

104

005

106

007

108

209

010

011

112

013

014

015

016

017

018

019

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 31 measured fish were spread across different length ranges.

Smallest: 4.6 cm
Lower quarter: 6.8 cm
Median: 8.4 cm
Upper quarter: 11.7 cm
Largest: 33.4 cm

0–99 mm

100–199 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mole

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

Roach Dace Chub Gudgeon Minnow Stone loach

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 →