RiverFish

Ruffe · Gymnocephalus cernuus

Ruffe in the River Stour

Largest measured ruffe: 15.2 cm

The largest ruffe measured in Environment Agency surveys of the River Stour was 15.2 cm, recorded at Bakers Mill A on 27 August 2002.

Across 756 measured ruffe, the median measured length was 8.1 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 Stour.

See ruffe records across England →

Most recent observation24 July 2025Anchor Bridge · 4 fish
Largest measured ruffe
15.2 cm
Median length
8.1 cm
Fish measured
756
Survey locations
39

Individual EA measurements

Largest measured ruffe

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

LengthSurvey dateSurvey locationSurvey ID
15.2 cm27 Aug 2002Bakers Mill A72179
15.1 cm25 Aug 2006Liston Mill101081
14.5 cm24 Jul 2018Boxted Mill154098
14.3 cm31 Jul 1997Bures Bridge A13686
14 cm11 Oct 1991Great Thurlow13620
13.9 cm15 Aug 2002Mill Meadow72181
13.8 cm2 Jul 2014Higham Hall143938
13.7 cm10 Oct 2006Little Thurlow101747
13.6 cm18 Sept 2012Anchor Bridge134053
13.5 cm8 Aug 2024Mill Meadow168000

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

Explore the river

Where ruffe were found

Each point marks a survey location with at least one ruffe 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 ruffe
Anchor Bridge28 Aug 200224 Jul 202511
Bures Bridge A5 Jul 198517 Jul 202518
Mill Farm Clare29 Aug 201823 Aug 20243
Boxted Mill27 Sept 199413 Aug 20249
Mill Meadow15 Aug 20028 Aug 202410
Wormingford Mill28 Jul 19977 Aug 20245
Lamarsh FGS A10 Aug 200629 Jul 202412
Pitmire A11 Aug 200926 Jul 20247
Wiston Mill21 Jul 199717 Jul 20244
Downstream Dedham Mill19 Aug 19833 Jul 20249
Tendring Hall20 Jul 198825 Jun 20247
Higham Hall8 Jul 199124 Jun 202410
Fen Bridge14 Jun 198520 Jun 202413
Stratford6 Jun 198517 Jun 20248
Bures Mill31 Jul 20079 Nov 20216
Clare Mill5 Nov 20215 Nov 20211
Judas Gap Elver Trap25 Jun 202025 Jun 20201
Shalford Weir27 Jul 20079 Aug 20167
Wixoe Pumping Station24 Sept 19911 Sept 20155
Flatford Mill15 Jun 19881 Jul 20154
Upstream Dedham Mill10 Jun 198524 Jun 20153
Wissington24 Jul 199710 Jul 20132
Pentlow Mill13 Sept 201213 Sept 20121
Liston Mill22 Aug 20035 Sept 20123
Bush Boake Allen4 Sept 20124 Sept 20121
Bakers Mill A14 Aug 200029 Jul 20106
Brantham Lock12 Jun 198522 Jun 20095
Langham Intake14 Jul 198810 Jul 20075
Little Thurlow10 Oct 200610 Oct 20061
Mill Green Radial Gate27 Sept 200627 Sept 20061
Kedington FGS29 Sept 200320 Sept 20062
Baythorne End19 Sept 200619 Sept 20061
Brundon (River Stour Middle)17 Aug 200617 Aug 20061
Wick Farm10 Jul 199114 Jul 20064
Cattawade30 Aug 198326 Jun 20004
Rodbridge Park19 Aug 199719 Aug 19971
Great Thurlow11 Oct 199111 Oct 19911
Garnons Farm17 Jul 198517 Jul 19851
Dedham (Old) River24 Aug 198324 Aug 19831

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

1983–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 756 measured fish were spread across different length ranges.

Smallest
2.3 cm
Lower quarter
6.1 cm
Median
8.1 cm
Upper quarter
10.4 cm
Largest
15.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Stour

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

Roach European eel Perch Pike Chub 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 →