RiverFish

Bleak · Alburnus alburnus

Bleak in the Grand Union Canal

Largest measured bleak: 14.8 cm

The largest bleak measured in Environment Agency surveys of the Grand Union Canal was 14.8 cm, recorded at Bradwell Waste Tip on 27 March 1990.

Across 49 measured bleak, the median measured length was 11.3 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Grand Union Canal.

See bleak records across England →

Most recent observation23 December 1993Yardley Gobion GUC · 1 fish
Largest measured bleak
14.8 cm
Median length
11.3 cm
Fish measured
49
Survey locations
4

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
14.8 cm27 Mar 1990Bradwell Waste Tip28791
13.3 cm17 Dec 1993Linford Manor Park28806
13.3 cm30 Mar 1990Woolstone28789
12.8 cm16 Dec 1993Woolstone28805
12.3 cm20 Dec 1993Bradwell Waste Tip28807
12.3 cm17 Dec 1993Linford Manor Park28806
12.3 cm17 Dec 1993Linford Manor Park28806
11.8 cm17 Dec 1993Linford Manor Park28806
11.8 cm17 Dec 1993Linford Manor Park28806
11.8 cm17 Dec 1993Linford Manor Park28806

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
Yardley Gobion GUC23 Dec 199323 Dec 19931
Bradwell Waste Tip27 Mar 199020 Dec 19932
Linford Manor Park25 Mar 199017 Dec 19932
Woolstone30 Mar 199016 Dec 19932

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

1990–1993

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 49 measured fish were spread across different length ranges.

Smallest
7.8 cm
Lower quarter
10.3 cm
Median
11.3 cm
Upper quarter
11.8 cm
Largest
14.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Grand Union Canal

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

Perch Common bream Gudgeon Roach Ruffe Pike

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 →