RiverFish

Chub · Leuciscus cephalus

Chub in the River Upper Ouse

Largest measured chub: 55.7 cm

The largest chub measured in Environment Agency surveys of the River Upper Ouse was 55.7 cm, recorded at DS Wolverton Mill on 24 October 2016.

Across 2,593 measured chub, the median measured length was 27.8 cm.

Surveyors recorded one individual weight: 5 lb 2 oz (2.32 kg).

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

See chub records across England →

Most recent observation21 April 2026DS Wolverton Mill · 13 fish
Largest measured chub
55.7 cm
Median length
27.8 cm
Fish measured
2,593
Survey locations
43

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
55.7 cm24 Oct 2016DS Wolverton Mill149970
54.3 cm10 Aug 2011Newport Pagnell127338
53.7 cm24 Oct 2016DS Wolverton Mill149970
53.6 cm24 Oct 2016DS Wolverton Mill149970
53.5 cm17 Oct 2017Oakley152015
53.4 cm6 Aug 2013Manor Farm Cosgrove137725
53.1 cm10 Aug 2011Newport Pagnell127338
53.1 cm10 Aug 2011Newport Pagnell127338
53 cm20 Aug 2013DS Wolverton Mill138049
53 cm17 May 2004Wolverton Mill79869

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 Wolverton Mill20 Aug 201321 Apr 20264
Manor Farm Cosgrove8 Jul 198817 Jun 20259
Thornborough Mill23 Jul 19915 Jun 202511
Buckingham28 Mar 19943 Jun 202515
Westbury30 Sept 20089 Jul 20245
Mill Farm1 Apr 199326 Jun 20247
Kempston Mill25 Nov 198831 Aug 20237
Odell21 Nov 198823 Aug 202313
Turvey18 Nov 198822 Aug 202317
Clifton Reynes16 Nov 198816 Aug 202313
DS Ravenstone Mill1 Sept 201115 Aug 20234
Stony Stratford Bypass Channel30 Jun 20168 Oct 20192
Mill Farm Gayhurst2 Aug 198819 Aug 201913
Oakley23 Nov 198817 Oct 201715
Newport Pagnell15 Nov 19884 Sept 201715
Mount Mill Farm9 Aug 19885 Aug 201315
Passenham26 Apr 19942 Aug 20139
Old Stratford27 Apr 199430 Jul 20135
Water Stratford8 Aug 20128 Aug 20121
Pavenham11 Nov 198817 Aug 20107
Ravenstone Mill1 Nov 19885 Aug 20108
Radwell / Bletsoe24 Oct 19944 Aug 20108
Wolverton Mill21 Aug 199129 Jun 201011
Brackley30 Sept 200830 Sept 20081
DS Passenham Weir30 Aug 199117 Apr 20085
Milton Ernest STW7 Sept 20047 Sept 20041
Falcon Inn Bletsoe6 Sept 20046 Sept 20041
Stoke Mill Sharnbrook3 Sept 20043 Sept 20041
Lavendon Mill7 Oct 19975 Jul 20042
Haversham Weir20 May 200420 May 20041
Biddenham5 Mar 199217 Nov 19973
Harrold Country Park14 Nov 198814 Nov 19974
Queens Park Bedford2 Mar 19925 Nov 19973
Clapham28 Oct 199427 Oct 19972
Sherrington26 Oct 198823 Oct 19974
Felmersham19 Oct 198820 Oct 19974
Emberton Park24 Nov 198816 Oct 19973
Radclive Mill22 Jun 198830 Apr 19974
US Mill Farm28 Jun 198817 Apr 19974
Old Mill House Buckingham2 Jul 199114 Apr 19973
Milton Ernest22 Nov 198819 Oct 19943
Newton Blossomville17 Oct 19883 Nov 19912
Carlton18 Oct 198818 Oct 19881

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

1988–2026

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 2,593 measured fish were spread across different length ranges.

Smallest
2.8 cm
Lower quarter
12.8 cm
Median
27.8 cm
Upper quarter
39.8 cm
Largest
55.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight
5 lb 2 oz (2.32 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Upper Ouse

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

Pike Perch Dace Roach Gudgeon 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 →