Rudd · Scardinius erythrophthalmus

Rudd in the River Derwent (Yorkshire)

Largest measured rudd: 19.5 cm

The largest rudd measured in Environment Agency surveys of the River Derwent (Yorkshire) was 19.5 cm, recorded at Yedingham DERCORS4 on 10 September 2007.

Across 8 measured rudd, the median measured length was 10.4 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 Derwent (Yorkshire).

See rudd records across England →

Most recent observation12 September 2007Wheldrake Ings DERCORS19 · 1 fish

Largest measured rudd: 19.5 cm
Median length: 10.4 cm
Fish measured: 8
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
19.5 cm	10 Sept 2007	Yedingham DERCORS4	108115
15.7 cm	5 Sept 2001	Yedingham DERCORS4	24103
14.6 cm	2 Sept 2002	Malton DERCORS5	72230
10.6 cm	12 Sept 2007	Wheldrake Ings DERCORS19	108114
10.3 cm	14 Sept 2001	Sutton Upon Derwent DERCORS18	24183
8.8 cm	11 Sept 2007	Stamford Bridge DERCORS10	108108
7.1 cm	11 Sept 2007	Stamford Bridge DERCORS10	108108
2.9 cm	2 Sept 2002	Malton DERCORS5	72230

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
Wheldrake Ings DERCORS19	12 Sept 2007	12 Sept 2007	1
Stamford Bridge DERCORS10	11 Sept 2007	11 Sept 2007	1
Yedingham DERCORS4	5 Sept 2001	10 Sept 2007	2
Malton DERCORS5	2 Sept 2002	2 Sept 2002	1
Sutton Upon Derwent DERCORS18	14 Sept 2001	14 Sept 2001	1

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

2001–2007

Survey records by year

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

201

102

003

004

005

006

307

Fish measured by surveyors

Measured length distribution

See how the 8 measured fish were spread across different length ranges.

Smallest: 2.9 cm
Lower quarter: 8.4 cm
Median: 10.5 cm
Upper quarter: 14.9 cm
Largest: 19.5 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Derwent (Yorkshire)

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

Minnow Bullhead Stone loach Dace European eel 3-spined stickleback

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 →