RiverFish

Chub · Leuciscus cephalus

Chub in the River Cookham - Boulters

Largest measured chub: 52.4 cm

The largest chub measured in Environment Agency surveys of the River Cookham - Boulters was 52.4 cm, recorded at Odney Weir Stream, Cookham. on 1 September 2005.

Across 71 measured chub, the median measured length was 16 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 Cookham - Boulters.

See chub records across England →

Most recent observation27 July 2025Cliveden Island · 1 fish
Largest measured chub
52.4 cm
Median length
16 cm
Fish measured
71
Survey locations
3

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
52.4 cm1 Sept 2005Odney Weir Stream, Cookham.86266
49.7 cm3 Sept 2012Odney Weir Stream, Cookham.133582
48.2 cm2 Sept 2003Odney Weir Stream, Cookham.76963
41.5 cm1 Sept 2000Odney Weir Stream, Cookham.121565
41.2 cm1 Sept 2005Odney Weir Stream, Cookham.86266
34.5 cm1 Sept 2000Cliveden Island121563
27.4 cm1 Aug 2022Cliveden Island161307
27.4 cm10 Sept 2002Odney Weir Stream, Cookham.68620
24.5 cm10 Sept 2002Cliveden Island69061
24.1 cm7 Sept 2004Odney Weir Stream, Cookham.82531

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
Cliveden Island1 Sept 200027 Jul 202513
Odney Weir Stream, Cookham.1 Sept 20003 Sept 201210
Hedsor Weir Stream Cookham to Boulters1 Sept 20051 Sept 20051

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

2000–2025

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 71 measured fish were spread across different length ranges.

Smallest
3.9 cm
Lower quarter
10 cm
Median
16 cm
Upper quarter
21.3 cm
Largest
52.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Cookham - Boulters

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

Bleak Roach Perch Pike European eel Dace

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 →