RiverFish

Bleak · Alburnus alburnus

Bleak in the St Ives Chub Stream

Largest measured bleak: 15.6 cm

The largest bleak measured in Environment Agency surveys of the St Ives Chub Stream was 15.6 cm, recorded at St Ives Chub Stream on 8 April 2025.

Across 130 measured bleak, the median measured length was 11 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the St Ives Chub Stream.

See bleak records across England →

Most recent observation8 April 2025St Ives Chub Stream · 115 fish
Largest measured bleak
15.6 cm
Median length
11 cm
Fish measured
130
Survey locations
2

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
15.6 cm8 Apr 2025St Ives Chub Stream176250
15 cm8 Apr 2025St Ives Chub Stream176250
14.5 cm8 Apr 2025St Ives Chub Stream176250
14.4 cm8 Apr 2025St Ives Chub Stream176250
14 cm8 Apr 2025St Ives Chub Stream176250
14 cm8 Apr 2025St Ives Chub Stream176250
14 cm8 Apr 2025St Ives Chub Stream176250
13.6 cm8 Apr 2025St Ives Chub Stream176250
13.6 cm2 May 2019St Ives Chub Stream154454
13.5 cm8 Apr 2025St Ives Chub Stream176250

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
St Ives Chub Stream11 Sept 19928 Apr 20255
St Ives Chub Stream (Eel Monitoring)9 Jul 20139 Jul 20131

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

1992–2025

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 130 measured fish were spread across different length ranges.

Smallest
5.9 cm
Lower quarter
9.7 cm
Median
11 cm
Upper quarter
12.4 cm
Largest
15.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the St Ives Chub Stream

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

European eel Chub Dace Gudgeon Perch Roach

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 →