Bleak · Alburnus alburnus

Bleak in the River West Fen Catchwater

Largest measured bleak: 17.6 cm

The largest bleak measured in Environment Agency surveys of the River West Fen Catchwater was 17.6 cm, recorded at Hall Lane Stickney on 4 June 1990.

Across 98 measured bleak, the median measured length was 10.6 cm.

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

See bleak records across England →

Most recent observation2 May 2013West Houses · 1 fish

Largest measured bleak: 17.6 cm
Median length: 10.6 cm
Fish measured: 98
Survey locations: 3

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
17.6 cm	4 Jun 1990	Hall Lane Stickney	58220
17.4 cm	20 May 1996	West Houses	58248
15.7 cm	20 May 1996	West Houses	58248
15.5 cm	20 May 1996	West Houses	58248
14.4 cm	19 Apr 1993	Hagnaby Lock	58232
14.1 cm	31 May 1990	West Houses	58219
14 cm	20 May 1996	West Houses	58248
13.9 cm	31 May 1990	West Houses	58219
13.8 cm	31 May 1990	West Houses	58219
13.7 cm	16 May 2000	West Houses	59007

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
West Houses	31 May 1990	2 May 2013	8
Hagnaby Lock	5 Jun 1990	19 Apr 1993	2
Hall Lane Stickney	4 Jun 1990	4 Jun 1990	1

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

1990–2013

Survey records by year

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

390

091

092

193

094

095

196

097

098

099

100

001

002

003

004

005

006

107

008

109

110

011

112

113

Fish measured by surveyors

Measured length distribution

See how the 98 measured fish were spread across different length ranges.

Smallest: 6.6 cm
Lower quarter: 9.1 cm
Median: 10.6 cm
Upper quarter: 12 cm
Largest: 17.6 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River West Fen Catchwater

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

Pike Perch Roach Ruffe Gudgeon Tench

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 →