Bleak · Alburnus alburnus

Bleak in the Cowbridge Drain

Largest measured bleak: 20.3 cm

The largest bleak measured in Environment Agency surveys of the Cowbridge Drain was 20.3 cm, recorded at Kelsey Bridge on 20 July 2011.

Across 54 measured bleak, the median measured length was 13.2 cm.

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

See bleak records across England →

Most recent observation11 July 2013Kelsey Bridge · 3 fish

Largest measured bleak: 20.3 cm
Median length: 13.2 cm
Fish measured: 54
Survey locations: 2

Individual EA measurements

Largest measured bleak

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

Length	Survey date	Survey location	Survey ID
20.3 cm	20 Jul 2011	Kelsey Bridge	128674
18.6 cm	20 Jul 2011	Kelsey Bridge	128674
16.5 cm	20 Jul 2011	Kelsey Bridge	128674
16.1 cm	20 Jul 2011	Kelsey Bridge	128674
16.1 cm	11 Jul 1996	Kelsey Bridge	57850
16 cm	20 Jul 2011	Kelsey Bridge	128674
15.9 cm	20 Jul 2011	Kelsey Bridge	128674
15.8 cm	20 Jul 2011	Kelsey Bridge	128674
15.8 cm	19 Jul 1993	Bakers Bridge	57836
15.7 cm	11 Jul 1996	Kelsey Bridge	57850

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 surveyed	First recorded	Last recorded	Visits finding bleak
Kelsey Bridge	14 Jul 1993	11 Jul 2013	4
Bakers Bridge	19 Jul 1993	12 Jul 1996	2

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

1993–2013

Survey records by year

Each bar shows how many survey visits recorded bleak that year.

293

094

095

296

097

098

099

000

001

002

003

004

005

006

007

008

009

010

111

012

113

Fish measured by surveyors

Measured length distribution

See how the 54 measured fish were spread across different length ranges.

Smallest: 5.5 cm
Lower quarter: 12.1 cm
Median: 13.2 cm
Upper quarter: 15.3 cm
Largest: 20.3 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Cowbridge Drain

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

Common bream Perch Pike Roach Ruffe European eel

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 →