RiverFish

Bleak · Alburnus alburnus

Bleak in the River Ivel

Largest measured bleak: 13.8 cm

The largest bleak measured in Environment Agency surveys of the River Ivel was 13.8 cm, recorded at Gt Ouse Confluence on 12 June 1989.

Across 25 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 Ivel.

See bleak records across England →

Most recent observation24 June 2013Gt Ouse Confluence · 1 fish
Largest measured bleak
13.8 cm
Median length
10 cm
Fish measured
25
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
13.8 cm12 Jun 1989Gt Ouse Confluence29253
13.3 cm12 Jun 1989Gt Ouse Confluence29253
13.3 cm12 Jun 1989Gt Ouse Confluence29253
13.3 cm12 Jun 1989Gt Ouse Confluence29253
12.8 cm12 Jun 1989Gt Ouse Confluence29253
12.3 cm12 Jun 1989Gt Ouse Confluence29253
11.1 cm24 Jun 2013Gt Ouse Confluence136568
11 cm8 Jun 2007Gt Ouse Confluence105482
10.8 cm12 Jun 1989Gt Ouse Confluence29253
10.3 cm12 Jun 1989Gt Ouse Confluence29253

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
Gt Ouse Confluence12 Jun 198924 Jun 201310
Saw Mills Tempsford22 Aug 200322 Aug 20031

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

1989–2013

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 25 measured fish were spread across different length ranges.

Smallest
8 cm
Lower quarter
9.3 cm
Median
10 cm
Upper quarter
11.1 cm
Largest
13.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ivel

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

Chub Pike Roach Gudgeon Dace Bullhead

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 →