Bleak · Alburnus alburnus

Bleak in the River Swilgate

Largest measured bleak: 16 cm

The largest bleak measured in Environment Agency surveys of the River Swilgate was 16 cm, recorded at Rails Meadow on 9 August 2022.

Across 27 measured bleak, the median measured length was 9 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 Swilgate.

See bleak records across England →

Most recent observation9 August 2022Rails Meadow · 14 fish

Largest measured bleak: 16 cm
Median length: 9 cm
Fish measured: 27
Survey locations: 4

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
16 cm	9 Aug 2022	Rails Meadow	161277
13.5 cm	20 Jan 1976	Gander Lane	76571
12.5 cm	20 Jan 1976	Gander Lane	76571
11.6 cm	9 Aug 2022	Rails Meadow	161277
10.7 cm	21 Oct 1998	Gander Lane	76546
10.7 cm	15 Dec 1987	Tredington	72974
10.5 cm	20 Jan 1976	Gander Lane	76571
10 cm	20 Jan 1976	Gander Lane	76571
9.8 cm	9 Aug 2022	Rails Meadow	161277
9.5 cm	20 Jan 1976	Gander Lane	76571

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
Rails Meadow	9 Aug 2022	9 Aug 2022	1
D/s of weir (tidal)	30 Sept 2005	30 Sept 2005	1
Gander Lane	20 Jan 1976	21 Oct 1998	2
Tredington	15 Dec 1987	15 Dec 1987	1

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

1976–2022

Survey records by year

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

176

077

078

079

080

081

082

083

084

085

086

187

088

089

090

091

092

093

094

095

096

097

198

099

000

001

002

003

004

105

006

007

008

009

010

011

012

013

014

015

016

017

018

019

020

021

122

Fish measured by surveyors

Measured length distribution

See how the 27 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 5.9 cm
Median: 9 cm
Upper quarter: 10.3 cm
Largest: 16 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Swilgate

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

Dace European eel Stone loach Roach 3-spined stickleback Chub

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 →