Chub · Leuciscus cephalus

Chub in the Bristol Avon main river

Largest measured chub: 52.7 cm

The largest chub measured in Environment Agency surveys of the Bristol Avon main river was 52.7 cm, recorded at Lacock (Te) on 28 July 2010.

Across 2,622 measured chub, the median measured length was 20 cm.

Surveyors recorded weights for 970 chub. The median was 4.5 oz (0.1265 kg) and the largest recorded weight was 4 lb 8.2 oz (2.05 kg).

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

See chub records across England →

Most recent observation3 September 2024Chippenham (Te) · 49 fish

Largest measured chub: 52.7 cm
Median length: 20 cm
Fish measured: 2,622
Survey locations: 9

Individual EA measurements

Largest measured chub

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
52.7 cm	28 Jul 2010	Lacock (Te)	123161
52.5 cm	15 Sept 2015	Chippenham (Te)	146462
51.3 cm	15 Sept 2005	Chippenham (Te)	86151
50.7 cm	31 Aug 2011	Chippenham (Te)	127641
50.7 cm	2 Sept 2009	Christian Malford (Te)	118784
50.5 cm	31 Aug 2011	Chippenham (Te)	127641
50.5 cm	13 Oct 2009	Chippenham (Te)	119320
50.4 cm	31 Aug 2011	Chippenham (Te)	127641
50.4 cm	31 Aug 2011	Chippenham (Te)	127641
50.1 cm	1 Sept 2010	Chippenham (Te)	123618

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

Explore the river

Where chub were found

Each point marks a survey location with at least one chub 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 chub
Chippenham (Te)	9 Sept 2003	3 Sept 2024	15
Christian Malford (Te)	19 May 1999	23 Aug 2023	12
Great Somerford (Te)	28 Aug 2002	22 Aug 2023	14
Lacock (Te)	20 Aug 2003	21 Aug 2019	13
Melksham	16 Sept 2015	30 Aug 2017	3
Barton Country Park	18 Sept 2014	18 Sept 2014	1
Rawlings Farm (Te)	23 Jul 2003	12 Jul 2006	4
u/s Kingsmead Mill	26 May 1999	26 May 1999	1
d/s Malmesbury bypass	20 May 1999	20 May 1999	1

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

1999–2024

Survey records by year

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

399

000

001

102

503

504

505

506

107

008

409

410

411

012

413

514

315

516

417

018

219

020

021

022

323

124

Fish measured by surveyors

Measured length distribution

See how the 2,622 measured fish were spread across different length ranges.

Smallest: 2.2 cm
Lower quarter: 13.1 cm
Median: 20 cm
Upper quarter: 33.8 cm
Largest: 52.7 cm

0–99 mm

316

100–199 mm

989

200–299 mm

491

300–399 mm

484

400–499 mm

332

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 970 chub. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 1.4 oz (0.039 kg)
Median: 4.5 oz (0.1265 kg)
Upper quarter: 1 lb 4 oz (0.568 kg)
Heaviest: 4 lb 8.2 oz (2.05 kg)

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

More fish in this river

Explore the Bristol Avon main river

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

Roach Minnow Perch Dace Pike 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 →