Bleak · Alburnus alburnus

Bleak in the Fossdyke Navigation Canal

Largest measured bleak: 17.2 cm

The largest bleak measured in Environment Agency surveys of the Fossdyke Navigation Canal was 17.2 cm, recorded at Drinsey Nook R/B on 2 September 1991.

Across 1,746 measured bleak, the median measured length was 10 cm.

Surveyors recorded one individual weight: 3.2 oz (0.09 kg).

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

See bleak records across England →

Most recent observation9 May 2017Fertilizer Factory · 24 fish

Largest measured bleak: 17.2 cm
Median length: 10 cm
Fish measured: 1,746
Survey locations: 5

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
17.2 cm	2 Sept 1991	Drinsey Nook R/B	53216
16.1 cm	12 Aug 1997	Hardwick Ferry L/B	53360
15.8 cm	6 Jun 1985	Hardwick Ferry L/B	53014
15.7 cm	19 Aug 1997	Burton Lane End (Burton Waters)	53363
15.3 cm	2 Sept 1991	Drinsey Nook R/B	53216
15.2 cm	16 Aug 1988	Pyewipe Inn	53118
15.1 cm	2 Sept 1991	Drinsey Nook R/B	53216
15 cm	23 May 1994	Burton Lane End (Burton Waters)	53273
14.9 cm	12 Aug 1997	Drinsey Nook R/B	53361
14.8 cm	12 Sept 1991	Pyewipe Inn	53219

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
Fertilizer Factory	26 Jun 1985	9 May 2017	17
Hardwick Ferry L/B	6 Jun 1985	27 Jun 2006	10
Pyewipe Inn	28 Jun 1985	20 Aug 1997	5
Burton Lane End (Burton Waters)	27 Jun 1985	19 Aug 1997	5
Drinsey Nook R/B	25 Jun 1985	12 Aug 1997	4

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

1985–2017

Survey records by year

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

585

086

087

588

089

090

591

092

093

494

095

096

597

098

099

000

001

102

203

204

205

206

107

108

109

110

111

112

013

114

015

016

117

Fish measured by surveyors

Measured length distribution

See how the 1,746 measured fish were spread across different length ranges.

Smallest: 5 cm
Lower quarter: 8.9 cm
Median: 10 cm
Upper quarter: 11.2 cm
Largest: 17.2 cm

0–99 mm

859

100–199 mm

887

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight: 3.2 oz (0.09 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Fossdyke Navigation Canal

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

Common bream Perch Roach Ruffe Pike 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 →