RiverFish

Chub · Leuciscus cephalus

Chub in the River Marlow - Cookham

Largest measured chub: 55.3 cm

The largest chub measured in Environment Agency surveys of the River Marlow - Cookham was 55.3 cm, recorded at Marlow - Cookham Upper Main Channel on 18 July 2024.

Across 191 measured chub, the median measured length was 18.8 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 Marlow - Cookham.

See chub records across England →

Most recent observation18 July 2024Marlow - Cookham Upper Main Channel · 3 fish
Largest measured chub
55.3 cm
Median length
18.8 cm
Fish measured
191
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
55.3 cm18 Jul 2024Marlow - Cookham Upper Main Channel165849
55 cm6 Sept 2010Marlow - Cookham Upper Main Channel124083
54 cm5 Sept 2016Marlow - Cookham Upper Main Channel149244
53.7 cm5 Sept 2011Marlow - Cookham Upper Main Channel128117
53.5 cm5 Sept 2016Marlow - Cookham Upper Main Channel149244
53.2 cm18 Jul 2024Marlow - Cookham Upper Main Channel165849
53 cm31 Aug 2005Marlow Weir Pool86315
52.8 cm6 Sept 2010Marlow - Cookham Upper Main Channel124083
52.6 cm2 Sept 2013Marlow - Cookham Upper Main Channel138884
51.6 cm7 Sept 2015Marlow - Cookham Upper Main Channel146402

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
Marlow - Cookham Upper Main Channel1 Sept 199518 Jul 202422
Cookham Lock Cut1 Sept 19957 Sept 20094
Marlow Weir Pool1 Sept 199531 Aug 20052
Marlow Sewage Treatment Outfall1 Sept 199831 Aug 20053

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

1995–2024

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 191 measured fish were spread across different length ranges.

Smallest
1.6 cm
Lower quarter
12.5 cm
Median
18.8 cm
Upper quarter
30.3 cm
Largest
55.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Marlow - Cookham

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

Bleak Perch Pike Roach Dace 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 →