Barbel · Barbus barbus

Barbel in the Wraysbury River

Largest measured barbel: 26 cm

The largest barbel measured in Environment Agency surveys of the Wraysbury River was 26 cm, recorded at Harmondsworth Moor on 23 June 2010.

Across 164 measured barbel, the median measured length was 12.3 cm.

Surveyors recorded weights for 4 barbel. The median was 1.9 oz (0.054 kg) and the largest recorded weight was 5.9 oz (0.166 kg).

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

See barbel records across England →

Most recent observation15 May 2024Harmondsworth Moor · 7 fish

Largest measured barbel: 26 cm
Median length: 12.3 cm
Fish measured: 164
Survey locations: 1

Individual EA measurements

Largest measured barbel

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
26 cm	23 Jun 2010	Harmondsworth Moor	122462
25.9 cm	23 Jun 2010	Harmondsworth Moor	122462
24.7 cm	4 Aug 2004	Harmondsworth Moor	80906
24.3 cm	24 Jun 2008	Harmondsworth Moor	111536
23 cm	28 Jun 2007	Harmondsworth Moor	105720
22.5 cm	18 Jun 2015	Harmondsworth Moor	144973
22.4 cm	24 Jun 2009	Harmondsworth Moor	117663
22.2 cm	24 Jun 2009	Harmondsworth Moor	117663
22 cm	24 Jun 2008	Harmondsworth Moor	111536
21.2 cm	21 Jun 2011	Harmondsworth Moor	126602

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where barbel were found

Each point marks a survey location with at least one barbel 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 barbel
Harmondsworth Moor	3 Sept 2003	15 May 2024	13

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

2003–2024

Survey records by year

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

103

104

105

106

107

108

109

110

111

012

013

114

115

016

017

118

019

020

021

022

023

124

Fish measured by surveyors

Measured length distribution

See how the 164 measured fish were spread across different length ranges.

Smallest: 3.9 cm
Lower quarter: 9.6 cm
Median: 12.4 cm
Upper quarter: 16.3 cm
Largest: 26 cm

0–99 mm

100–199 mm

101

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 4 barbel. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.9 oz (0.026 kg)
Lower quarter: 1.4 oz (0.041 kg)
Median: 1.9 oz (0.054 kg)
Upper quarter: 3.1 oz (0.088 kg)
Heaviest: 5.9 oz (0.166 kg)

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

More fish in this river

Explore the Wraysbury River

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

Chub Dace Gudgeon Minnow Perch 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 →