RiverFish

Chub · Leuciscus cephalus

Chub in the Lee Navigation

Largest measured chub: 54.5 cm

The largest chub measured in Environment Agency surveys of the Lee Navigation was 54.5 cm, recorded at Upstream Carthagena Lock on 16 September 2025.

Across 365 measured chub, the median measured length was 13 cm.

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

See chub records across England →

Most recent observation16 September 2025Upstream Carthagena Lock · 7 fish
Largest measured chub
54.5 cm
Median length
13 cm
Fish measured
365
Survey locations
20

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
54.5 cm16 Sept 2025Upstream Carthagena Lock178653
51.5 cm20 Aug 2009Ware Priory118437
49.6 cm18 Feb 1993Fieldes Weir to Dobbs Weir116044
47.8 cm5 Aug 2025Ponders End177752
47 cm20 Aug 2009Ware Priory118437
46.4 cm17 Sept 1992Marshgate Drive (Dicker Mill Stream)115993
45.9 cm5 Aug 2025Ponders End177752
45.9 cm7 Oct 2004Ware Priory82728
45.1 cm23 Sept 2003Ware Priory77073
44.6 cm19 Jan 1993Ponders End116682

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
Upstream Carthagena Lock16 Sept 202516 Sept 20251
Ponders End19 Jan 19935 Aug 20254
Picketts Lock10 Jul 201310 Jul 20253
Enfield Lock23 Jan 200413 Aug 20242
Hertford Basin24 Sept 200311 Jul 20245
Dobbs Weir12 Oct 200722 Jun 20153
Rye House to Stanstead Lock29 Jun 201129 Jun 20111
Enfield Lock (OAP Fishing Match)1 Aug 20074 Aug 20104
Ware Priory5 Nov 199220 Aug 20097
Amwell Magna24 Feb 199324 Feb 19931
Hardmead (Amwell End)23 Feb 199323 Feb 19931
Fieldes Weir to Dobbs Weir19 Apr 197818 Feb 19932
Crown Fishery (Dobb's Lock + Carthagena)5 Feb 19935 Feb 19931
Small Lee, Prince of Wales fields2 Feb 19932 Feb 19931
Turnford Marshes26 Jan 199326 Jan 19931
Amwell Quarry1 Oct 19921 Oct 19921
Tumbling Bay22 Sept 199222 Sept 19921
Marshgate Drive (Dicker Mill Stream)17 Sept 199217 Sept 19921
Rye House26 Apr 197826 Apr 19781
Stanstead Lock Upstream5 Apr 19785 Apr 19781

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

1978–2025

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 365 measured fish were spread across different length ranges.

Smallest
3.1 cm
Lower quarter
9.8 cm
Median
13 cm
Upper quarter
17.5 cm
Largest
54.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Lee Navigation

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

Roach Perch Pike Bleak Tench Common bream

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 →