Bleak · Alburnus alburnus

Bleak in the Lees Brook

Largest measured bleak: 13.3 cm

The largest bleak measured in Environment Agency surveys of the Lees Brook was 13.3 cm, recorded at Brampton Weir on 2 September 1992.

Across 655 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 Lees Brook.

See bleak records across England →

Most recent observation10 May 2006Brampton Weir · 24 fish

Largest measured bleak: 13.3 cm
Median length: 9.8 cm
Fish measured: 655
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
13.3 cm	2 Sept 1992	Brampton Weir	29229
13.3 cm	2 Sept 1992	Brampton Weir	29229
13.3 cm	2 Sept 1992	Brampton Weir	29229
13.3 cm	2 Sept 1992	Brampton Weir	29229
13 cm	10 May 2006	Brampton Weir	90724
12.8 cm	5 Oct 1998	Brampton Weir	29234
12.8 cm	2 Sept 1992	Brampton Weir	29229
12.8 cm	2 Sept 1992	Brampton Weir	29229
12.8 cm	2 Sept 1992	Brampton Weir	29229
12.8 cm	2 Sept 1992	Brampton Weir	29229

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
Brampton Weir	7 Nov 1989	10 May 2006	5
Berry Lane Bridge	15 Sept 1995	2 May 2006	3

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

1989–2006

Survey records by year

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

189

090

091

192

093

094

295

096

097

298

099

000

001

002

003

004

005

206

Fish measured by surveyors

Measured length distribution

See how the 655 measured fish were spread across different length ranges.

Smallest: 5 cm
Lower quarter: 8.3 cm
Median: 9.8 cm
Upper quarter: 10.3 cm
Largest: 13.3 cm

0–99 mm

414

100–199 mm

241

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Lees Brook

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

Perch Roach European eel 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 →