Bleak · Alburnus alburnus

Bleak in the River Romney - Old Windsor

Largest measured bleak: 20.7 cm

The largest bleak measured in Environment Agency surveys of the River Romney - Old Windsor was 20.7 cm, recorded at Romney Main on 12 September 2002.

Across 2,652 measured bleak, the median measured length was 8.9 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 Romney - Old Windsor.

See bleak records across England →

Most recent observation29 July 2025Romney Weir Stream · 25 fish

Largest measured bleak: 20.7 cm
Median length: 8.9 cm
Fish measured: 2,652
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
20.7 cm	12 Sept 2002	Romney Main	72044
18.7 cm	9 Sept 2009	Blackpotts	119004
16.4 cm	12 Sept 2002	Romney Weir Stream	72056
16.1 cm	9 Sept 2004	Romney to Jubilee	82504
15.5 cm	4 Sept 2003	Romney Weir Stream	77803
15.4 cm	7 Sept 2011	Romney Weir Pool	128131
14.9 cm	7 Sept 2006	Romney Weir Pool	101403
14.8 cm	4 Sept 2013	Romney Weir Stream	138877
14.8 cm	6 Sept 2007	Upstream Datchet Intake	107078
14.8 cm	12 Sept 2002	Romney Main	72044

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
Romney Weir Stream	1 Sept 2000	29 Jul 2025	21
Downstream Datchet Intake	6 Sept 2005	13 Sept 2019	4
Upstream Datchet Intake	4 Sept 2003	4 Sept 2013	10
Romney Weir Pool	1 Sept 1995	4 Sept 2013	16
Blackpotts	4 Sept 2003	4 Sept 2013	10
Old Windsor Lock Cut	5 Sept 2008	5 Sept 2008	1
Romney to Jubilee	9 Sept 2004	9 Sept 2004	1
Romney Main	1 Sept 1995	12 Sept 2002	5

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

1995–2025

Survey records by year

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

295

096

097

298

099

300

301

302

403

404

405

406

307

608

409

410

511

412

413

114

115

116

017

118

219

020

021

122

023

124

125

Fish measured by surveyors

Measured length distribution

See how the 2,652 measured fish were spread across different length ranges.

Smallest: 2.3 cm
Lower quarter: 8 cm
Median: 8.9 cm
Upper quarter: 10.4 cm
Largest: 20.7 cm

0–99 mm

1798

100–199 mm

853

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Romney - Old Windsor

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

Pike Roach Dace European eel Perch 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 →