Bleak · Alburnus alburnus

Bleak in the Twenty Foot Drain

Largest measured bleak: 15.3 cm

The largest bleak measured in Environment Agency surveys of the Twenty Foot Drain was 15.3 cm, recorded at Chainbridge on 11 September 1991.

Across 54 measured bleak, the median measured length was 12.6 cm.

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

See bleak records across England →

Most recent observation10 May 2023Hobbs Lot Bridge · 3 fish

Largest measured bleak: 15.3 cm
Median length: 12.6 cm
Fish measured: 54
Survey locations: 6

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
15.3 cm	11 Sept 1991	Chainbridge	29526
15.3 cm	11 Sept 1991	Chainbridge	29526
15.3 cm	30 Aug 1991	Hobbs Lot Bridge	29525
14.8 cm	31 May 2011	Poplartree Bridge	126380
14.8 cm	11 Sept 1991	Chainbridge	29526
14.8 cm	11 Sept 1991	Chainbridge	29526
14.7 cm	16 May 2017	Hobbs Lot Bridge	150410
14.4 cm	31 May 2011	Poplartree Bridge	126380
14.3 cm	11 Sept 1991	Chainbridge	29526
14.3 cm	11 Sept 1991	Chainbridge	29526

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
Hobbs Lot Bridge	30 Aug 1991	10 May 2023	4
Holloways Bridge	18 May 2017	18 May 2017	1
Poplartree Bridge	25 May 2004	31 May 2011	3
Goosetree Corner	6 Jul 2009	6 Jul 2009	1
Shepperson's Bridge	24 May 2004	24 May 2004	1
Chainbridge	11 Sept 1991	11 Sept 1991	1

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

1991–2023

Survey records by year

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

291

092

093

094

095

096

097

098

099

000

001

002

003

204

005

006

007

008

309

010

111

012

013

014

015

016

217

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

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

Smallest: 6.7 cm
Lower quarter: 10.8 cm
Median: 12.6 cm
Upper quarter: 13.8 cm
Largest: 15.3 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Twenty Foot Drain

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

Perch Roach Common bream Pike Ruffe Rudd

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 →