RiverFish

Bleak · Alburnus alburnus

Bleak in the River Trent

Largest measured bleak: 16 cm

The largest bleak measured in Environment Agency surveys of the River Trent was 16 cm, recorded at Farndon Net on 20 September 2016.

Across 1,794 measured bleak, the median measured length was 3.9 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 Trent.

See bleak records across England →

Most recent observation19 September 2025Sawley Weir Net · 4 fish
Largest measured bleak
16 cm
Median length
3.9 cm
Fish measured
1,794
Survey locations
19

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
16 cm20 Sept 2016Farndon Net149318
15.9 cm23 Sept 2007Willington107984
15.6 cm13 May 2010Wolseley Bridge121747
15.5 cm17 Sept 2015Burton - Ferrybridge (match catch)147884
15.2 cm13 May 2010Wolseley Bridge121747
15 cm13 May 2010Wolseley Bridge121747
15 cm13 May 2010Wolseley Bridge121747
14.9 cm8 Sept 2022Burton - Ferrybridge (match catch)162191
14.9 cm17 Sept 2015Burton - Ferrybridge (match catch)147884
14.6 cm18 Sept 2014Burton - Ferrybridge (match catch)148960

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
Stoke Bardolph Net14 Oct 201019 Sept 202510
Sawley Weir Net15 Sept 201619 Sept 20256
Burton - Ferrybridge (match catch)18 Sept 201411 Sept 20256
Holme Net9 Oct 20159 Sept 20254
North Clifton Net19 Oct 20104 Sept 202510
Kneeton Net3 Oct 201222 Aug 202510
Muskham Bridge Net7 Oct 20112 Oct 20238
Farndon Net1 Oct 201325 Sept 20238
Colwick Marina Net21 Sept 201122 Sept 20228
Sandy Point Net28 Sept 201020 Sept 20228
Sandy Point27 Sept 201025 Sept 20144
Mill Lane (Newark Dyke)29 Sept 201123 Sept 20142
Willington15 Sept 200212 Nov 20104
Wolseley Bridge13 May 201013 May 20101
Dunham Net3 Sept 20083 Sept 20081
Burton - Stapenhill31 Aug 200722 Apr 20082
Burton - Newton Solney30 Aug 200730 Aug 20071
Burton - Newton Road30 Aug 200730 Aug 20071
Burton - Branston29 Aug 200729 Aug 20071

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

2002–2025

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 1,794 measured fish were spread across different length ranges.

Smallest
1.1 cm
Lower quarter
3.1 cm
Median
3.9 cm
Upper quarter
5.4 cm
Largest
16 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Trent

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

Chub Roach Dace Gudgeon Perch Minnow

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 →