Rudd · Scardinius erythrophthalmus

Rudd in the Trader/Maud Foster Drain

Largest measured rudd: 23.4 cm

The largest rudd measured in Environment Agency surveys of the Trader/Maud Foster Drain was 23.4 cm, recorded at Trader Bank Sibsey on 1 June 2005.

Across 188 measured rudd, the median measured length was 9.7 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Trader/Maud Foster Drain.

See rudd records across England →

Most recent observation2 May 2019Horncastle Road · 1 fish

Largest measured rudd: 23.4 cm
Median length: 9.7 cm
Fish measured: 188
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
23.4 cm	1 Jun 2005	Trader Bank Sibsey	86331
20.1 cm	2 Jun 2000	Horncastle Road	59002
18.8 cm	25 May 2006	Horncastle Road	99806
17.6 cm	2 Jun 2000	Horncastle Road	59002
16.8 cm	8 Jun 2007	Horncastle Road	105477
16.1 cm	10 Jun 2010	Horncastle Road	123624
15.5 cm	25 Jun 2009	Horncastle Road	117546
15.3 cm	19 Jul 2011	Windsor Bank Boston	127643
15 cm	10 Jun 2010	Horncastle Road	123624
14.8 cm	24 Jun 2009	Trader Bank Sibsey	117531

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
Horncastle Road	5 Jun 1987	2 May 2019	13
Upstream Boston Golf Club	3 Jun 1987	6 May 2016	7
Windsor Bank Boston	11 Jun 1987	19 Jul 2011	5
Trader Bank Sibsey	24 May 2000	12 Jul 2011	5
Sibsey Fenside	30 May 1990	30 May 1990	1

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

1987–2019

Survey records by year

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

387

088

089

190

091

092

193

094

095

196

097

098

099

200

001

102

103

004

105

106

407

308

309

210

411

012

013

014

015

216

017

018

119

Fish measured by surveyors

Measured length distribution

See how the 188 measured fish were spread across different length ranges.

Smallest: 4.6 cm
Lower quarter: 8.1 cm
Median: 9.7 cm
Upper quarter: 11.6 cm
Largest: 23.4 cm

0–99 mm

103

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Trader/Maud Foster Drain

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

Common bream Roach Perch Pike Silver bream Ruffe

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 →