RiverFish

Bleak · Alburnus alburnus

Bleak in the River Ember FAS

Largest measured bleak: 17.3 cm

The largest bleak measured in Environment Agency surveys of the River Ember FAS was 17.3 cm, recorded at Old Ember Channel opposite Orchard Lane on 12 October 2009.

Across 612 measured bleak, the median measured length was 8.7 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 Ember FAS.

See bleak records across England →

Most recent observation5 October 2023Below Island Barn Weir · 4 fish
Largest measured bleak
17.3 cm
Median length
8.7 cm
Fish measured
612
Survey locations
4

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
17.3 cm12 Oct 2009Old Ember Channel opposite Orchard Lane119987
16 cm12 Oct 2009Old Ember Channel opposite Orchard Lane119987
15.7 cm28 May 1993Below Island Barn Weir103180
15.6 cm12 Oct 2009Old Ember Channel opposite Orchard Lane119987
15.3 cm12 Oct 2009Old Ember Channel opposite Orchard Lane119987
15.3 cm28 Sept 2006Below Island Barn Weir102033
14.9 cm12 Oct 2009Old Ember Channel opposite Orchard Lane119987
14.8 cm12 Oct 2009Old Ember Channel opposite Orchard Lane119987
14.7 cm12 Oct 2009Old Ember Channel opposite Orchard Lane119987
14.6 cm12 Oct 2009Old Ember Channel opposite Orchard Lane119987

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
Below Island Barn Weir28 May 19935 Oct 202311
Old Ember Channel opposite Orchard Lane12 Oct 200912 Oct 20091
Upstream Esher STW22 May 199022 May 19901
Downstream Esher STW22 May 199022 May 19901

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

1990–2023

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 612 measured fish were spread across different length ranges.

Smallest
2.1 cm
Lower quarter
7.4 cm
Median
8.7 cm
Upper quarter
11.1 cm
Largest
17.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ember FAS

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

European eel Roach Perch Pike Dace Gudgeon

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 →