RiverFish

Chub · Leuciscus cephalus

Chub in the River Ouzel

Largest measured chub: 52.8 cm

The largest chub measured in Environment Agency surveys of the River Ouzel was 52.8 cm, recorded at Manor Sports Field on 6 June 2013.

Across 1,167 measured chub, the median measured length was 30.3 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 Ouzel.

See chub records across England →

Most recent observation16 April 2026DS Caldecote Mill · 1 fish
Largest measured chub
52.8 cm
Median length
30.3 cm
Fish measured
1,167
Survey locations
12

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
52.8 cm6 Jun 2013Manor Sports Field136325
52.3 cm6 Jun 2013Manor Sports Field136325
51.7 cm6 Jun 2013Manor Sports Field136325
51.2 cm25 May 2016Open University148109
50.4 cm7 Jun 2013Open University136319
50.3 cm15 Dec 1994Simpson Ouzel29053
50 cm20 Apr 2006Caldecote Mill90637
49.3 cm6 Jun 2016Manor Sports Field148164
49.3 cm5 Jan 1995M1 Road Bridge29055
49 cm24 Apr 2003Manor Sports Field75866

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
DS Caldecote Mill17 Jun 201316 Apr 20264
Open University4 Jan 19955 Aug 202515
Manor Sports Field12 Nov 199031 Jul 202516
Newport Pagnell7 Nov 199016 Jul 20196
Leighton Buzzard31 May 20168 Jul 20192
US Open University3 Sept 20146 Oct 20174
US Leighton Buzzard21 Mar 201621 Mar 20161
M1 Road Bridge8 Nov 199013 May 20105
Caldecote Mill6 Nov 199012 May 201012
Castle Meadow22 Nov 199030 Apr 200911
Simpson Ouzel21 Nov 199029 Mar 20044
Stoke Hammond5 Dec 199724 Mar 20042

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

1990–2026

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 1,167 measured fish were spread across different length ranges.

Smallest
4.1 cm
Lower quarter
14.8 cm
Median
30.3 cm
Upper quarter
38.3 cm
Largest
52.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ouzel

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

Gudgeon Perch Roach Dace Bullhead Minnow

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 →