Bleak · Alburnus alburnus

Bleak in the Main Avon Sites

Largest measured bleak: 15.9 cm

The largest bleak measured in Environment Agency surveys of the Main Avon Sites was 15.9 cm, recorded at A7R Royalty Gt.Weir to Clay Pool on 11 May 2011.

Across 89 measured bleak, the median measured length was 10.6 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Main Avon Sites.

See bleak records across England →

Most recent observation11 May 2011A7R Royalty Gt.Weir to Clay Pool · 19 fish

Largest measured bleak: 15.9 cm
Median length: 10.6 cm
Fish measured: 89
Survey locations: 1

Individual EA measurements

Largest measured bleak

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
15.9 cm	11 May 2011	A7R Royalty Gt.Weir to Clay Pool	126200
15.6 cm	11 May 2011	A7R Royalty Gt.Weir to Clay Pool	126200
14.6 cm	18 May 2005	A7R Royalty Gt.Weir to Clay Pool	84572
14.5 cm	11 May 2011	A7R Royalty Gt.Weir to Clay Pool	126200
14.4 cm	1 May 2007	A7R Royalty Gt.Weir to Clay Pool	105314
14.2 cm	18 May 2005	A7R Royalty Gt.Weir to Clay Pool	84572
14 cm	11 May 2011	A7R Royalty Gt.Weir to Clay Pool	126200
14 cm	15 May 2008	A7R Royalty Gt.Weir to Clay Pool	110982
14 cm	18 May 2004	A7R Royalty Gt.Weir to Clay Pool	79874
14 cm	18 May 2004	A7R Royalty Gt.Weir to Clay Pool	79874

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 surveyed	First recorded	Last recorded	Visits finding bleak
A7R Royalty Gt.Weir to Clay Pool	18 May 2004	11 May 2011	5

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

2004–2011

Survey records by year

Each bar shows how many survey visits recorded bleak that year.

104

105

006

107

108

009

010

111

Fish measured by surveyors

Measured length distribution

See how the 89 measured fish were spread across different length ranges.

Smallest: 5.1 cm
Lower quarter: 9.5 cm
Median: 10.6 cm
Upper quarter: 12.3 cm
Largest: 15.9 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main Avon Sites

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

Bullhead Minnow Stone loach Brown / sea trout Atlantic salmon European eel

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 →