Chub · Leuciscus cephalus

Chub in the River Mersey

Largest measured chub: 40.5 cm

The largest chub measured in Environment Agency surveys of the River Mersey was 40.5 cm, recorded at Mrme05 on 27 June 2005.

Across 85 measured chub, the median measured length was 12.8 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 Mersey.

See chub records across England →

Most recent observation17 October 2010Mrme45 · 5 fish

Largest measured chub: 40.5 cm
Median length: 12.8 cm
Fish measured: 85
Survey locations: 6

Individual EA measurements

Largest measured chub

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
40.5 cm	27 Jun 2005	Mrme05	84914
38.9 cm	14 Jul 2006	Mrme05	100557
38.5 cm	14 Jul 2006	Mrme05	100557
37.6 cm	14 Jul 2006	Mrme05	100557
37.4 cm	27 Jun 2005	Mrme11	84930
35.8 cm	26 Sept 2004	Mrme45	82502
35 cm	27 Jun 2005	Mrme05	84914
34 cm	14 Jul 2006	Mrme05	100557
34 cm	14 Jul 2006	Mrme05	100557
33.5 cm	27 Jun 2005	Mrme11	84930

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 surveyed	First recorded	Last recorded	Visits finding chub
Mrme45	26 Sept 2004	17 Oct 2010	3
Mrme11	27 Jun 2005	14 Jul 2006	2
Mrme05	2 Oct 2003	14 Jul 2006	3
Mrme20	2 Oct 2003	7 Jun 2006	2
Mrme10	6 Aug 2003	6 Aug 2003	1
Mrme15	17 Oct 2002	17 Oct 2002	1

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

2002–2010

Survey records by year

Each bar shows how many survey visits recorded chub that year.

102

303

104

305

306

007

008

009

110

Fish measured by surveyors

Measured length distribution

See how the 85 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 4 cm
Median: 12.8 cm
Upper quarter: 22 cm
Largest: 40.5 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mersey

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

Gudgeon Roach 3-spined stickleback Minnow Perch 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 →