RiverFish

Bleak · Alburnus alburnus

Bleak in the Harpers Brook

Largest measured bleak: 12.5 cm

The largest bleak measured in Environment Agency surveys of the Harpers Brook was 12.5 cm, recorded at Downstream Islip Gauging Weir on 16 March 1995.

Across 12 measured bleak, the median measured length was 11 cm.

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

See bleak records across England →

Most recent observation16 March 1995Downstream Islip Gauging Weir · 4 fish
Largest measured bleak
12.5 cm
Median length
11 cm
Fish measured
12
Survey locations
3

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
12.5 cm16 Mar 1995Downstream Islip Gauging Weir54435
12.5 cm21 Feb 1992Downstream Islip Gauging Weir54430
12 cm13 Mar 1995Pool 1 (Harpers Brook TNR)54438
12 cm13 Mar 1995Pool 2 (Harpers Brook TNR)54437
11.5 cm16 Mar 1995Downstream Islip Gauging Weir54435
11 cm16 Mar 1995Downstream Islip Gauging Weir54435
11 cm21 Feb 1992Downstream Islip Gauging Weir54430
10 cm21 Feb 1992Downstream Islip Gauging Weir54430
8.5 cm16 Mar 1995Downstream Islip Gauging Weir54435
7 cm13 Mar 1995Pool 1 (Harpers Brook TNR)54438

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 Islip Gauging Weir1 Mar 198916 Mar 19953
Pool 2 (Harpers Brook TNR)13 Mar 199513 Mar 19951
Pool 1 (Harpers Brook TNR)13 Mar 199513 Mar 19951

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

1989–1995

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 12 measured fish were spread across different length ranges.

Smallest
6.5 cm
Lower quarter
8.1 cm
Median
11 cm
Upper quarter
12 cm
Largest
12.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Harpers Brook

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

Minnow Bullhead Chub Dace Stone loach Roach

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 →