RiverFish

Bleak · Alburnus alburnus

Bleak in the River Loddon

Largest measured bleak: 14.9 cm

The largest bleak measured in Environment Agency surveys of the River Loddon was 14.9 cm, recorded at Sheepbridge on 7 April 2016.

Across 204 measured bleak, the median measured length was 11.9 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 Loddon.

See bleak records across England →

Most recent observation1 May 2025Twyford LH Channel · 4 fish
Largest measured bleak
14.9 cm
Median length
11.9 cm
Fish measured
204
Survey locations
7

Individual EA measurements

Largest measured bleak

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
14.9 cm7 Apr 2016Sheepbridge147924
14.6 cm25 Apr 2008Sheepbridge110839
14.6 cm25 Apr 2008Sheepbridge110839
14.5 cm1 May 2007Twyford RH Channel105256
14.5 cm1 May 2007Twyford LH Channel105254
14.4 cm7 Apr 2016Sheepbridge147924
14.4 cm8 May 2007Sheepbridge105277
14.3 cm25 Apr 2008Sheepbridge110839
14.2 cm25 Apr 2008Sheepbridge110839
14.2 cm1 May 2007Twyford RH Channel105256

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 surveyedFirst recordedLast recordedVisits finding bleak
Twyford RH channel Downstream1 May 20251 May 20251
Twyford LH Channel13 May 20041 May 20256
Sheepbridge2 May 20067 Apr 20165
Twyford RH Channel6 Dec 199115 Apr 20097
Lower Stanford End29 Apr 200829 Apr 20081
Whistley Mill14 Jan 199215 Apr 20032
Sindlesham Back Stream16 May 199216 May 19921

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

1991–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 204 measured fish were spread across different length ranges.

Smallest
5.6 cm
Lower quarter
11 cm
Median
11.9 cm
Upper quarter
12.7 cm
Largest
14.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Loddon

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

Chub Gudgeon Brown / sea trout Pike Roach Dace

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 →