RiverFish

Rudd · Scardinius erythrophthalmus

Rudd in the River Medway

Largest measured rudd: 18.1 cm

The largest rudd measured in Environment Agency surveys of the River Medway was 18.1 cm, recorded at D/s Weirwood Reservoir on 8 July 2021.

Across 28 measured rudd, the median measured length was 9.9 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 Medway.

See rudd records across England →

Most recent observation18 June 2026Yalding Leas · 6 fish
Largest measured rudd
18.1 cm
Median length
9.9 cm
Fish measured
28
Survey locations
6

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
18.1 cm8 Jul 2021D/s Weirwood Reservoir160155
16.5 cm8 Jul 2021D/s Weirwood Reservoir160155
15.5 cm9 Aug 2023D/s Weirwood Reservoir163083
15.3 cm14 May 2007D/s Weirwood Reservoir105853
14.2 cm24 Jul 2024Tovil166180
14.2 cm8 Jul 2021D/s Weirwood Reservoir160155
13.7 cm11 Sept 2014D/s Weirwood Reservoir142845
13.4 cm11 Sept 2014D/s Weirwood Reservoir142845
12.2 cm8 Jul 2021D/s Weirwood Reservoir160155
12.1 cm18 Jun 2026Yalding Leas181912

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
Yalding Leas18 Jun 202618 Jun 20261
Tovil24 Jul 202424 Jul 20241
D/s Weirwood Reservoir14 May 20079 Aug 20237
Yalding Juvenile Fish Seine Netting Survey4 Jul 20164 Jul 20161
Bewleys Weir17 Aug 200417 Aug 20041
Gallypot12 Apr 200412 Apr 20041

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

2004–2026

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 28 measured fish were spread across different length ranges.

Smallest
7 cm
Lower quarter
8.7 cm
Median
10 cm
Upper quarter
13.5 cm
Largest
18.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Medway

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

Chub Gudgeon Roach Perch Bleak Dace

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 →