Bleak · Alburnus alburnus

Bleak in the Frith Bank Drain

Largest measured bleak: 18 cm

The largest bleak measured in Environment Agency surveys of the Frith Bank Drain was 18 cm, recorded at Downstream Antons Gowt Lock on 7 November 1990.

Across 31 measured bleak, the median measured length was 9.8 cm.

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

See bleak records across England →

Most recent observation5 July 2016Cowbridge · 8 fish

Largest measured bleak: 18 cm
Median length: 9.8 cm
Fish measured: 31
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
18 cm	7 Nov 1990	Downstream Antons Gowt Lock	58266
14.6 cm	5 Jul 2016	Cowbridge	148631
13.7 cm	7 Jun 1996	Cowbridge	58301
13.4 cm	5 Jul 2016	Cowbridge	148631
13.3 cm	20 Jul 2001	Cowbridge	59056
13.2 cm	5 Jul 2016	Cowbridge	148631
13.1 cm	5 Jul 2016	Cowbridge	148631
12.7 cm	5 Jul 2016	Cowbridge	148631
12.1 cm	7 Jun 1993	Cowbridge	58282
11.8 cm	7 Jun 1993	Cowbridge	58282

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
Cowbridge	7 Jun 1993	5 Jul 2016	5
Downstream Antons Gowt Lock	7 Nov 1990	4 May 1993	2

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

1990–2016

Survey records by year

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

190

091

092

293

094

095

196

097

098

099

000

101

002

003

004

005

006

007

008

009

010

111

012

013

014

015

116

Fish measured by surveyors

Measured length distribution

See how the 31 measured fish were spread across different length ranges.

Smallest: 7 cm
Lower quarter: 9.4 cm
Median: 9.8 cm
Upper quarter: 12.4 cm
Largest: 18 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Frith Bank Drain

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

Perch Pike Roach Ruffe Common bream 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 →