Bleak · Alburnus alburnus

Bleak in the River Idle

Largest measured bleak: 15.9 cm

The largest bleak measured in Environment Agency surveys of the River Idle was 15.9 cm, recorded at Misterton Soss on 12 May 1995.

Across 112 measured bleak, the median measured length was 10 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 Idle.

See bleak records across England →

Most recent observation25 April 2017Bawtry · 1 fish

Largest measured bleak: 15.9 cm
Median length: 10 cm
Fish measured: 112
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
15.9 cm	12 May 1995	Misterton Soss	24351
14.2 cm	2 Jun 2008	Chain Bridge Lane	111315
13.8 cm	29 Jun 1983	Bawtry	79215
13.7 cm	8 May 2014	Bawtry	140757
13.7 cm	27 Feb 1992	Bawtry	24991
13.5 cm	12 May 2009	Tiln	119513
13.5 cm	5 Sept 2006	Haxey Gate	101190
13.5 cm	27 Feb 1992	Bawtry	24991
13.5 cm	29 Jun 1983	Bawtry	79215
13.3 cm	16 May 1984	Bawtry	79209

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
Bawtry	28 Jan 1983	25 Apr 2017	8
Mattersey Priory	20 Aug 1987	13 Apr 2017	2
Tiln	12 May 2009	12 May 2009	1
Chain Bridge Lane	7 Sept 2004	2 Jun 2008	3
Eaton	6 Sept 2007	6 Sept 2007	1
Haxey Gate	12 May 1995	5 Sept 2006	3
Misson	3 Nov 2003	3 Nov 2003	1
Misterton Soss	12 May 1995	12 May 1995	1

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

1983–2017

Survey records by year

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

283

184

085

086

187

088

089

090

091

192

093

094

295

096

097

098

099

000

001

002

103

104

105

106

207

208

109

010

111

012

013

114

015

016

217

Fish measured by surveyors

Measured length distribution

See how the 112 measured fish were spread across different length ranges.

Smallest: 4.3 cm
Lower quarter: 7.5 cm
Median: 10 cm
Upper quarter: 12 cm
Largest: 15.9 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Idle

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

European eel Roach Perch Pike Chub Gudgeon

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 →