RiverFish

Bleak · Alburnus alburnus

Bleak in the River DS Cam

Largest measured bleak: 14.7 cm

The largest bleak measured in Environment Agency surveys of the River DS Cam was 14.7 cm, recorded at Midsummer Common on 14 October 2019.

Across 1,599 measured bleak, the median measured length was 10 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 DS Cam.

See bleak records across England →

Most recent observation2 October 2025Clayhithe Bridge · 1 fish
Largest measured bleak
14.7 cm
Median length
10 cm
Fish measured
1,599
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.

LengthSurvey dateSurvey locationSurvey ID
14.7 cm14 Oct 2019Midsummer Common155734
14.7 cm14 Oct 2019Midsummer Common155734
14.4 cm14 Oct 2019Midsummer Common155734
14.4 cm28 Aug 2013Midsummer Common138180
14.3 cm22 Aug 2001Dimmocks Cote30812
14.3 cm21 Aug 2001Clayhithe Bridge30811
14.1 cm30 Aug 2013Baits Bite Lock138245
14.1 cm28 Aug 2013Midsummer Common138180
14 cm28 Aug 2013Midsummer Common138180
13.8 cm28 Aug 2013Midsummer Common138180

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
Clayhithe Bridge24 Oct 19962 Oct 202511
Baits Bite Lock12 Dec 19901 Oct 202514
Midsummer Common7 Nov 199014 Oct 201912
Fen Ditton7 Sept 200117 Sept 201913
Horningsea19 Aug 200419 Aug 20112
Stourbridge Common9 Nov 19908 Aug 20113
Hatleys Wash25 Aug 20041 Aug 20112
Dimmocks Cote22 Aug 20018 Sept 20097

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

1990–2025

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 1,599 measured fish were spread across different length ranges.

Smallest
5.4 cm
Lower quarter
9 cm
Median
10 cm
Upper quarter
11.3 cm
Largest
14.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River DS Cam

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

Perch Pike Common bream Ruffe 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 →