Bleak · Alburnus alburnus

Bleak in the River Nene (Old Course)

Largest measured bleak: 15.8 cm

The largest bleak measured in Environment Agency surveys of the River Nene (Old Course) was 15.8 cm, recorded at Staffurths Bridge on 26 July 1991.

Across 225 measured bleak, the median measured length was 10.8 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Nene (Old Course).

See bleak records across England →

Most recent observation5 July 2023Staffurths Bridge · 12 fish

Largest measured bleak: 15.8 cm
Median length: 10.8 cm
Fish measured: 225
Survey locations: 8

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
15.8 cm	26 Jul 1991	Staffurths Bridge	29694
15.3 cm	20 Jun 1999	Benwick	29710
15.3 cm	16 Jul 1991	Stokes Bridge	29688
14.8 cm	13 Jun 1994	Floods Ferry	29702
14.8 cm	13 Jun 1994	Floods Ferry	29702
14.8 cm	3 Jun 1994	Stokes Bridge	29697
14.8 cm	27 Aug 1987	Benwick	29683
14.3 cm	16 Jun 1994	March	29704
14.3 cm	8 Jun 1994	Ramsey Mere	29699
14.3 cm	3 Jun 1994	Stokes Bridge	29697

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
Staffurths Bridge	1 Sept 1987	5 Jul 2023	5
Benwick	27 Aug 1987	15 Jun 2017	4
March	16 Jun 1994	7 Jul 2011	3
Stokes Bridge	20 Aug 1987	27 Jun 2006	5
Floods Ferry	13 Jun 1994	30 Jun 1999	2
Ramsey Mere	15 Jul 1991	29 Jun 1999	3
Four Hundred Farm	16 Jun 1999	16 Jun 1999	1
Saunders Bridge	7 Jun 1994	7 Jun 1994	1

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

1987–2023

Survey records by year

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

387

088

089

090

391

092

093

694

095

096

097

098

699

000

001

002

003

004

005

206

007

008

009

010

111

012

013

014

015

016

217

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 225 measured fish were spread across different length ranges.

Smallest: 7.8 cm
Lower quarter: 10.3 cm
Median: 10.8 cm
Upper quarter: 12.3 cm
Largest: 15.8 cm

0–99 mm

100–199 mm

182

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Nene (Old Course)

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

Roach Perch Common bream Pike Silver bream Ruffe

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 →