RiverFish

Roach · Rutilus rutilus

Roach in the Trader/Maud Foster Drain

Largest measured roach: 32.4 cm

The largest roach measured in Environment Agency surveys of the Trader/Maud Foster Drain was 32.4 cm, recorded at Sibsey Fenside on 4 May 1993.

Across 53,699 measured roach, the median measured length was 9.2 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 roach records across England →

Most recent observation2 May 2019Horncastle Road · 381 fish
Largest measured roach
32.4 cm
Median length
9.2 cm
Fish measured
53,699
Survey locations
5

Individual EA measurements

Largest measured roach

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
32.4 cm4 May 1993Sibsey Fenside58229
29.6 cm4 May 1993Sibsey Fenside58229
28.6 cm29 May 1990Trader Bank Sibsey58217
28.3 cm10 Jun 1987Trader Bank Sibsey58201
28 cm4 May 1993Sibsey Fenside58229
27.7 cm4 May 1993Sibsey Fenside58229
27.6 cm4 May 1993Sibsey Fenside58229
27.5 cm10 Jun 1987Trader Bank Sibsey58201
27 cm4 May 1993Sibsey Fenside58229
26.7 cm5 May 1993Trader Bank Sibsey58228

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where roach were found

Each point marks a survey location with at least one roach 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 roach
Horncastle Road5 Jun 19872 May 201917
Upstream Boston Golf Club3 Jun 19871 May 201913
Trader Bank Sibsey10 Jun 198730 Apr 201918
Windsor Bank Boston11 Jun 198719 Jul 201110
Sibsey Fenside9 Jun 198723 May 20005

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 roach that year.

Fish measured by surveyors

Measured length distribution

See how the 53,699 measured fish were spread across different length ranges.

Smallest
1.3 cm
Lower quarter
7 cm
Median
9.2 cm
Upper quarter
11.9 cm
Largest
32.4 cm

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 Perch Pike Silver bream Ruffe Bleak

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 →