RiverFish

Bleak · Alburnus alburnus

Bleak in the Trader/Maud Foster Drain

Largest measured bleak: 18.2 cm

The largest bleak measured in Environment Agency surveys of the Trader/Maud Foster Drain was 18.2 cm, recorded at Windsor Bank Boston on 7 June 2000.

Across 1,417 measured bleak, the median measured length was 12.1 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 bleak records across England →

Most recent observation2 May 2019Horncastle Road · 2 fish
Largest measured bleak
18.2 cm
Median length
12.1 cm
Fish measured
1,417
Survey locations
5

Individual EA measurements

Largest measured bleak

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

LengthSurvey dateSurvey locationSurvey ID
18.2 cm7 Jun 2000Windsor Bank Boston59003
18.2 cm13 Jun 1996Windsor Bank Boston58241
18.1 cm5 May 1993Trader Bank Sibsey58228
18.1 cm10 Jun 1987Trader Bank Sibsey58201
17.4 cm7 May 1993Upstream Boston Golf Club58225
17.3 cm30 May 1990Sibsey Fenside58218
17.3 cm9 Jun 1987Sibsey Fenside58202
17.2 cm5 May 1993Trader Bank Sibsey58228
17.1 cm5 May 1993Trader Bank Sibsey58228
17 cm29 May 1990Trader Bank Sibsey58217

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

Explore the river

Where bleak were found

Each point marks a survey location with at least one bleak 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 bleak
Horncastle Road5 Jun 19872 May 201913
Upstream Boston Golf Club3 Jun 19876 May 201611
Trader Bank Sibsey10 Jun 19875 May 201611
Windsor Bank Boston17 May 199019 Jul 20119
Sibsey Fenside9 Jun 198730 May 19964

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 bleak that year.

Fish measured by surveyors

Measured length distribution

See how the 1,417 measured fish were spread across different length ranges.

Smallest
5.1 cm
Lower quarter
10.5 cm
Median
12.1 cm
Upper quarter
13.4 cm
Largest
18.2 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 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 →