RiverFish

Chub · Leuciscus cephalus

Chub in the River Churn

Largest measured chub: 49.8 cm

The largest chub measured in Environment Agency surveys of the River Churn was 49.8 cm, recorded at River Churn - Cerney Wick on 20 October 2003.

Across 186 measured chub, the median measured length was 25.4 cm.

Surveyors recorded weights for 12 chub. The median was 1 lb 8.9 oz (0.705 kg) and the largest recorded weight was 3 lb 9.1 oz (1.62 kg).

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

See chub records across England →

Most recent observation29 April 2025South Cerney - behind outdoor education centre · 4 fish
Largest measured chub
49.8 cm
Median length
25.4 cm
Fish measured
186
Survey locations
4

Individual EA measurements

Largest measured chub

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

LengthSurvey dateSurvey locationSurvey ID
49.8 cm20 Oct 2003River Churn - Cerney Wick78428
48.5 cm23 Mar 2004River Churn - Upstream Thames Confluence79507
48.3 cm28 Apr 2003River Churn - Cerney Wick78424
46.9 cm23 Mar 2004River Churn - Upstream Thames Confluence79507
46.9 cm9 May 2002River Churn - Cerney Wick73271
45.6 cm20 Oct 2003River Churn - Cerney Wick78428
45.4 cm9 May 2002River Churn - Cerney Wick73271
44.5 cm23 Mar 2004River Churn - Upstream Thames Confluence79507
43.7 cm16 Apr 2015River Churn - South Cerney Outdoor Education Centr144563
43.7 cm9 May 2002River Churn - Cerney Wick73271

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 surveyedFirst recordedLast recordedVisits finding chub
South Cerney - behind outdoor education centre20 Apr 201729 Apr 20252
River Churn - South Cerney Outdoor Education Centr6 Nov 200116 Apr 20157
River Churn - Cerney Wick9 May 200216 Apr 201510
River Churn - Upstream Thames Confluence23 Mar 200423 Mar 20041

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

2001–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 186 measured fish were spread across different length ranges.

Smallest
3.5 cm
Lower quarter
11 cm
Median
25.4 cm
Upper quarter
33.9 cm
Largest
49.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 12 chub. This is a subset of the measured fish and may not represent the whole population.

Lightest
1 oz (0.027 kg)
Lower quarter
1 lb 2.9 oz (0.5372 kg)
Median
1 lb 8.9 oz (0.705 kg)
Upper quarter
2 lb 3.5 oz (1.01 kg)
Heaviest
3 lb 9.1 oz (1.62 kg)

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

More fish in this river

Explore the River Churn

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

Brown / sea trout Bullhead Minnow Pike Roach Perch

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 →