RiverFish

Roach · Rutilus rutilus

Roach in the River Upper Ouse

Largest measured roach: 35.3 cm

The largest roach measured in Environment Agency surveys of the River Upper Ouse was 35.3 cm, recorded at Buckingham on 1 July 1991.

Across 33,060 measured roach, the median measured length was 10.8 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 Upper Ouse.

See roach records across England →

Most recent observation21 April 2026DS Wolverton Mill · 91 fish
Largest measured roach
35.3 cm
Median length
10.8 cm
Fish measured
33,060
Survey locations
44

Individual EA measurements

Largest measured roach

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

LengthSurvey dateSurvey locationSurvey ID
35.3 cm1 Jul 1991Buckingham28832
35.3 cm15 Jul 1988DS Passenham Weir28823
35.3 cm24 Jun 1988Old Mill House Buckingham28817
34.8 cm1 May 1997Manor Farm Cosgrove28875
34.3 cm15 Jul 1988DS Passenham Weir28823
34.3 cm24 Jun 1988Old Mill House Buckingham28817
34.3 cm24 Jun 1988Old Mill House Buckingham28817
33.8 cm3 May 1994Manor Farm Cosgrove28859
33.8 cm15 Jul 1988DS Passenham Weir28823
33.8 cm28 Jun 1988US Mill Farm28820

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where roach were found

Each point marks a survey location with at least one roach 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 roach
DS Wolverton Mill20 Aug 201321 Apr 20264
Manor Farm Cosgrove8 Jul 198817 Jun 20258
Passenham14 Jul 198812 Jun 202517
Buckingham23 Jun 19883 Jun 202516
Mill Farm30 Jun 198826 Jun 20249
Thornborough Mill10 Aug 198819 Jun 202413
Kempston Mill25 Nov 198831 Aug 20237
Oakley23 Nov 198830 Aug 202316
Odell21 Nov 198823 Aug 202313
Turvey18 Nov 198822 Aug 202317
Clifton Reynes16 Nov 198816 Aug 202316
DS Ravenstone Mill1 Sept 201115 Aug 20234
Brackley7 Aug 201212 Oct 20225
Stony Stratford Bypass Channel30 Jun 20168 Oct 20192
Mill Farm Gayhurst2 Aug 198819 Aug 201912
Newport Pagnell15 Nov 19884 Sept 201715
Water Stratford4 Apr 19978 Sept 20163
Westbury25 Mar 19977 Sept 20164
Mount Mill Farm9 Aug 19885 Aug 201315
Old Stratford27 Jun 198830 Jul 20136
Lavendon Mill13 Oct 19882 Sept 20116
Pavenham11 Nov 198817 Aug 20107
Ravenstone Mill1 Nov 19885 Aug 20109
Radwell / Bletsoe20 Oct 19884 Aug 201012
Wolverton Mill5 Aug 198829 Jun 201013
Haversham Weir20 Jul 198825 Apr 20085
DS Passenham Weir15 Jul 198817 Apr 20086
Milton Ernest STW7 Sept 20047 Sept 20041
Falcon Inn Bletsoe6 Sept 20046 Sept 20041
Stoke Mill Sharnbrook3 Sept 20043 Sept 20041
Stony Stratford1 Nov 20011 Nov 20011
Emberton Park24 Nov 198824 Aug 20015
Biddenham29 Nov 198817 Nov 19974
Clapham28 Oct 198827 Oct 19973
Sherrington26 Oct 198823 Oct 19974
Felmersham19 Oct 198820 Oct 19974
Carlton18 Oct 198817 Oct 19973
Newton Blossomville17 Oct 19888 Oct 19974
Radclive Mill27 Mar 199130 Apr 19973
US Mill Farm28 Jun 198817 Apr 19974
Old Mill House Buckingham24 Jun 198814 Apr 19974
Queens Park Bedford2 Mar 199225 Nov 19942
Milton Ernest22 Nov 198819 Oct 19943
Harrold Country Park14 Nov 198817 Oct 19943

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 roach that year.

Fish measured by surveyors

Measured length distribution

See how the 33,060 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
8.3 cm
Median
10.8 cm
Upper quarter
15.1 cm
Largest
35.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

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 Chub 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 →