RiverFish

Bleak · Alburnus alburnus

Bleak in the River Nene

Largest measured bleak: 18.3 cm

The largest bleak measured in Environment Agency surveys of the River Nene was 18.3 cm, recorded at Nassington on 27 July 1989.

Across 8,864 measured bleak, the median measured length was 9.2 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 Nene.

See bleak records across England →

Most recent observation18 September 2018Castor Mill Channel · 11 fish
Largest measured bleak
18.3 cm
Median length
9.2 cm
Fish measured
8,864
Survey locations
55

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
18.3 cm27 Jul 1989Nassington54047
16.3 cm30 May 2008Stanground Back Channel111333
16.3 cm25 Sept 1989Stibbington54050
16.3 cm27 Jul 1989Nassington54047
16.3 cm27 Jul 1989Nassington54047
16.3 cm27 Jul 1989Nassington54047
16 cm21 Sept 1993Cogenhoe Back Channel54057
16 cm15 Sept 1989Stanground Back Channel54055
16 cm22 Jun 1989Downstream Clifford Hill lock54005
15.9 cm12 Jul 2007Downstream Clifford Hill lock106489

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
Castor Mill Channel12 Oct 200918 Sept 20184
Yarwell Mill Back Channel9 Sept 198117 Sept 201816
Barnwell Back Channel DS Oundle Mill14 Sept 201814 Sept 20181
Wansford Lock Back Channel13 Sept 201813 Sept 20181
Thrapston3 Jul 199525 Jun 201510
Downstream Wansford Lock19 Jul 198922 Jun 201512
Upstream Earl's Barton Lock25 Oct 201325 Oct 20131
Wadenhoe Backchannel21 Sept 200916 Oct 20132
Upstream Ditchford Lock26 Sept 201326 Sept 20131
Ringstead Back Channel13 Sept 201213 Sept 20121
Downstream Clifford Hill lock22 Jun 198912 Sept 201210
Cogenhoe Main Channel6 Sept 199511 Sept 20129
Downstream Oundle North Road Bridge20 Jul 19895 Sept 201210
Downstream Wadenhoe Lock9 Oct 198930 Aug 20125
Downstream Hardwater Lock15 Jul 200923 Aug 20123
Ferry Meadows3 Jul 198417 Aug 20128
Downstream Fotheringhay19 Jun 19843 Aug 201211
Downstream Irthlinborough23 Jun 200530 Jun 20105
Stanground Back Channel15 Sept 198921 Jun 201011
Ailsworth4 Aug 198916 Jun 201010
Barnwell Back Channel21 Sept 20017 Jun 20108
Eaglethorpe Backchannel27 Oct 200927 Oct 20091
Irthlingborough Backchannel18 Sept 200918 Sept 20091
Ailsworth Upstream of BC weir12 Aug 200912 Aug 20091
Wellingborough Back Channel19 Aug 20039 Jun 20097
A47 Wansford8 Jul 20088 Jul 20081
Upstream Elton Road Bridge14 Jul 19897 Jul 20082
Stibbington25 Sept 19894 Jul 20083
Cogenhoe Back Channel10 May 198911 Jun 20087
Yarwell M/C22 Jun 198422 Jun 20068
Upstream Wellingborough10 Aug 199527 Jun 20055
Billing Aquadrome4 Oct 19954 Oct 19951
Upstream White Mills10 Sept 199510 Sept 19951
Hardwater Back Channel8 Sept 19958 Sept 19951
Downstream White Mills4 Sept 19954 Sept 19951
Upstream Hardwater Lock24 Aug 199524 Aug 19951
Upstream Wollaston Lock24 May 198923 Aug 19952
Ditchford Back Channel15 Aug 199515 Aug 19951
Downstream Upper Ringstead1 Aug 19951 Aug 19951
Thorpe Channel3 Oct 198917 Jul 19952
Nassington Back Channel11 Jul 199511 Jul 19951
Lilford Park10 Oct 198910 Jul 19952
Upstream Lower Barnwell Lock26 Jun 199526 Jun 19951
Downstream Cotterstock21 Jul 198921 Jun 19953
Upstream Elton Lock20 Jun 199520 Jun 19951
Upstream Fotheringhay26 Jul 19939 Jun 19952
Bedford Gravels8 Aug 198925 May 19953
Lilford Upstream4 Oct 19894 Oct 19891
Aldwincle Channel2 Oct 19892 Oct 19891
Peterborough Embankment14 Sept 198914 Sept 19891
Upstream Milton Ferry1 Aug 19891 Aug 19891
Nassington27 Jul 198927 Jul 19891
Denford Upstream Lock26 Jul 198926 Jul 19891
Wellingborough Embankment12 May 198912 May 19891
Downstream Rushmills7 Apr 19897 Apr 19891

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

1981–2018

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 8,864 measured fish were spread across different length ranges.

Smallest
1 cm
Lower quarter
8.4 cm
Median
9.2 cm
Upper quarter
10.5 cm
Largest
18.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Nene

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

Roach Perch Pike Gudgeon Chub 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 →