RiverFish

Roach · Rutilus rutilus

Roach in the River Stour

Largest measured roach: 34.3 cm

The largest roach measured in Environment Agency surveys of the River Stour was 34.3 cm, recorded at Wixoe Pumping Station on 15 September 2006.

Across 98,144 measured roach, the median measured length was 11 cm.

Surveyors recorded weights for 260 roach. The median was 5.7 oz (0.163 kg) and the largest recorded weight was 1 lb 10.3 oz (0.746 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 Stour.

See roach records across England →

Most recent observation14 July 2026Tendring Hall · 89 fish
Largest measured roach
34.3 cm
Median length
11 cm
Fish measured
98,144
Survey locations
53

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
34.3 cm15 Sept 2006Wixoe Pumping Station101444
34.1 cm4 Sept 2000Clare Mill15552
33.9 cm4 Sept 2000Clare Mill15552
33.9 cm10 Oct 1985Little Wratting13527
33.8 cm1 Sept 2006Clare Mill101429
33.7 cm18 Sept 2006Mill Farm Clare101440
33.7 cm1 Sept 2006Clare Mill101429
33.2 cm13 Oct 2000Little Thurlow15562
33.1 cm1 Sept 2006Clare Mill101429
33.1 cm22 Sept 2003Little Thurlow77220

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
Tendring Hall8 Jul 198514 Jul 202624
Higham Hall18 Aug 19833 Jul 202625
Mill Meadow29 Sept 198111 Aug 202531
Bures Mill23 Jul 19855 Aug 202526
Lamarsh FGS A24 Jul 198530 Jul 202523
Pitmire A26 Jul 198529 Jul 202523
Anchor Bridge19 Jul 198324 Jul 202529
Bures Bridge A12 Nov 198117 Jul 202530
Fen Bridge23 Aug 198315 Jul 202521
Stratford28 Jul 198310 Jul 202517
Baythorne End15 Oct 19808 Oct 202415
Rats Castle21 Oct 198023 Sept 202417
Great Thurlow14 Oct 198518 Sept 202411
Bower Hall13 Oct 19883 Sept 202413
Kedington Radial Gate15 Oct 198528 Aug 202414
Wixoe Pumping Station24 Sept 198527 Aug 202413
Mill Farm Clare14 Oct 198023 Aug 202415
Bush Boake Allen5 Nov 198014 Aug 202415
Boxted Mill11 Jul 198513 Aug 202417
Wormingford Mill19 Nov 19817 Aug 202415
Pentlow Mill30 Oct 198031 Jul 202415
Wiston Mill16 Jul 198517 Jul 202413
Downstream Dedham Mill19 Aug 19833 Jul 202414
Upstream Dedham Mill10 Jun 198519 Jun 202410
Clare Mill17 Oct 19855 Nov 202113
Liston Mill22 Sept 19815 Oct 201816
Shalford Weir30 Sept 19819 Aug 201619
Wissington18 Jul 19852 Aug 201616
Stoke By Clare9 Oct 19802 Sept 201511
Flatford Mill25 Aug 19831 Jul 201512
Langham Intake21 Jul 19833 Aug 201014
Bakers Mill A11 Nov 198129 Jul 201017
Little Thurlow18 Sept 199728 Sept 20095
Mill Green Radial Gate16 Oct 198515 Sept 20099
Little Wratting2 Oct 19808 Sept 200910
Glemsford Pits21 Oct 198526 Aug 20099
Pentlow Street28 Oct 198021 Aug 200910
Kedington FGS8 Oct 198021 Aug 200910
Brundon (River Stour Middle)1 Aug 198510 Aug 20098
Rodbridge Park23 Sept 19816 Aug 200910
Shalford Meadow31 Jul 19855 Aug 20097
Priory Meadow29 Jul 19854 Aug 20099
Garnons Farm26 Jul 198316 Jul 20098
Wick Farm20 Jul 19833 Jul 200910
Brantham Lock12 Jun 198522 Jun 20099
Great Bradley (headwater)22 Sept 200317 Oct 20062
Dedham (Old) River24 Aug 198318 Jun 20036
Cattawade30 Aug 198316 Jun 20038
Pitmire B26 Jul 198526 Jul 19851
Stratford St Mary Mill Pool27 Jul 198327 Jul 19831
Stanch Farm B18 Nov 198118 Nov 19811
Stanch Farm A18 Nov 198118 Nov 19811
Bakers Mill B6 Oct 19816 Oct 19811

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

1980–2026

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 98,144 measured fish were spread across different length ranges.

Smallest
1.4 cm
Lower quarter
8 cm
Median
11 cm
Upper quarter
14.6 cm
Largest
34.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 260 roach. This is a subset of the measured fish and may not represent the whole population.

Lightest
0 oz (0.001 kg)
Lower quarter
3.7 oz (0.105 kg)
Median
5.7 oz (0.163 kg)
Upper quarter
8.6 oz (0.2445 kg)
Heaviest
1 lb 10.3 oz (0.746 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 Stour

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

European eel Perch Pike Chub Dace Gudgeon

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 →