RiverFish

Chub · Leuciscus cephalus

Chub in the River Ember FAS

Largest measured chub: 49.8 cm

The largest chub measured in Environment Agency surveys of the River Ember FAS was 49.8 cm, recorded at Below Island Barn Weir on 16 September 2013.

Across 709 measured chub, the median measured length was 13.5 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 Ember FAS.

See chub records across England →

Most recent observation24 July 2025Below Island Barn Weir · 14 fish
Largest measured chub
49.8 cm
Median length
13.5 cm
Fish measured
709
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
49.8 cm16 Sept 2013Below Island Barn Weir138722
49.8 cm19 Oct 2010Below Island Barn Weir124895
49.8 cm19 Oct 2010Below Island Barn Weir124895
49.7 cm2 Oct 2008Below Island Barn Weir115076
49.5 cm5 Oct 2005Below Island Barn Weir87045
49.4 cm16 Sept 2013Below Island Barn Weir138722
49.3 cm19 Oct 2010Below Island Barn Weir124895
49.2 cm9 Oct 2002Below Island Barn Weir65300
48.8 cm16 Sept 2013Below Island Barn Weir138722
48.8 cm16 Sept 2013Below Island Barn Weir138722

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
Below Island Barn Weir28 May 199324 Jul 202512
Old Ember Channel opposite Orchard Lane16 Nov 200612 Oct 20092
Downstream Esher STW15 Jul 198614 May 19933

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

1986–2025

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 709 measured fish were spread across different length ranges.

Smallest
2.4 cm
Lower quarter
11 cm
Median
13.5 cm
Upper quarter
18.4 cm
Largest
49.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ember FAS

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

European eel Roach Perch Pike Dace Bleak

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 →