RiverFish

Bleak · Alburnus alburnus

Bleak in the North Level Main Drain

Largest measured bleak: 17 cm

The largest bleak measured in Environment Agency surveys of the North Level Main Drain was 17 cm, recorded at Downstream A1101 Road Bridge on 11 August 1994.

Across 226 measured bleak, the median measured length was 11.8 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the North Level Main Drain.

See bleak records across England →

Most recent observation13 April 2016Downstream Clough's Cross · 7 fish
Largest measured bleak
17 cm
Median length
11.8 cm
Fish measured
226
Survey locations
7

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
17 cm11 Aug 1994Downstream A1101 Road Bridge54629
16 cm3 Jun 1997Upstream Newton Road Bridge54638
15.2 cm11 Apr 2012Downstream Clough's Cross131240
15 cm22 Apr 1997Murrow54635
15 cm11 Aug 1994Downstream A1101 Road Bridge54629
15 cm29 Sept 1991Harolds Bridge54612
15 cm23 Sept 1991Downstream Clough's Cross54611
14.8 cm25 Apr 2007Parsons Drove105392
14.5 cm25 Apr 2007Parsons Drove105392
14.5 cm3 Jun 1997Upstream Newton Road Bridge54638

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
Downstream Clough's Cross23 Sept 199113 Apr 20165
Parsons Drove16 May 200521 Apr 20084
Upstream Newton Road Bridge21 Sept 19888 Apr 20084
Poplar Tree Farm8 Aug 199414 May 19972
Harolds Bridge29 Sept 19915 May 19973
Murrow19 May 199422 Apr 19972
Downstream A1101 Road Bridge11 Aug 199411 Aug 19941

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

1988–2016

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 226 measured fish were spread across different length ranges.

Smallest
6 cm
Lower quarter
10.4 cm
Median
11.8 cm
Upper quarter
12.9 cm
Largest
17 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the North Level Main Drain

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

Roach Pike Perch Common bream Rudd Gudgeon

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 →