RiverFish

Chub · Leuciscus cephalus

Chub in the River Colne

Largest measured chub: 51.5 cm

The largest chub measured in Environment Agency surveys of the River Colne was 51.5 cm, recorded at Cricket Ground on 22 May 2017.

Across 5,510 measured chub, the median measured length was 21.3 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 Colne.

See chub records across England →

Most recent observation16 June 2026Blue Bridge · 4 fish
Largest measured chub
51.5 cm
Median length
21.3 cm
Fish measured
5,510
Survey locations
27

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
51.5 cm22 May 2017Cricket Ground150422
51 cm19 Apr 1999Upstream A12 Bridge14004
50.2 cm8 Jun 2023Downstream New Bridge162726
50.1 cm29 Jun 2011Downstream New Bridge126782
50 cm2 Jun 2026Wakes Colne Viaduct181512
50 cm26 Apr 2004Wakes Colne Viaduct84164
49.9 cm19 Apr 1999Upstream A12 Bridge14004
49.5 cm17 May 2023Fordstreet162731
49.4 cm11 May 2006Wakes Colne Viaduct90758
49.2 cm23 May 2023Cooks Mill162728

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
Blue Bridge23 Sept 198716 Jun 202610
Brook Street Farm21 Sept 199310 Jun 20267
Box Mill1 Sept 19873 Jun 20267
Wakes Colne Viaduct14 Aug 19872 Jun 202620
Fordstreet11 May 198414 May 202614
Spring Lane16 May 19847 May 202619
Earls Colne FGS13 Apr 19846 May 202621
Cooks Mill18 May 198428 Apr 202614
Downstream New Bridge17 May 19848 Jun 202312
Broom House14 May 19847 Jun 202312
Chalkney Mill17 Apr 19842 Jun 202312
Cricket Ground28 Jul 198722 May 201712
The Hedinghams22 Sept 198710 Jun 20143
North Bridge12 Aug 199312 May 201010
Swanscombe Farm18 Apr 198418 Jun 20089
Halstead24 Sept 198710 Jun 20086
Earls Colne Mill2 Jul 20026 Jun 20083
Elms Hall13 May 19965 Jun 20085
Fiddlers Mill11 Aug 19872 Jun 20087
Upstream A12 Bridge21 May 198413 May 20089
Bathing Pool22 May 19849 May 20087
Castle Park23 May 19847 May 20084
Maplestead Mill4 Jun 19998 Jul 20022
Poole Street31 May 199631 May 19961
Great Porters Farm22 Sept 199322 Sept 19931
Upstream Blue Bridge17 Sept 199016 Sept 19932
Does Corner19 Sept 199019 Sept 19901

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

1984–2026

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 5,510 measured fish were spread across different length ranges.

Smallest
2.7 cm
Lower quarter
13.4 cm
Median
21.3 cm
Upper quarter
33.9 cm
Largest
51.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Colne

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

Roach European eel Gudgeon Dace Pike 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 →