RiverFish

Roach · Rutilus rutilus

Roach in the River Stort

Largest measured roach: 33 cm

The largest roach measured in Environment Agency surveys of the River Stort was 33 cm, recorded at Grange Paddocks on 20 September 2006.

Across 3,715 measured roach, the median measured length was 9.4 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 Stort.

See roach records across England →

Most recent observation19 August 2025Grange Paddocks · 33 fish
Largest measured roach
33 cm
Median length
9.4 cm
Fish measured
3,715
Survey locations
6

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
33 cm20 Sept 2006Grange Paddocks101461
30.4 cm7 Oct 2003Grange Paddocks77423
29.9 cm16 Aug 2007Tednambury Mill (Little Hallingbury Mill)106424
29.4 cm31 Aug 2006Tednambury Mill (Little Hallingbury Mill)101064
29.2 cm20 Sept 2006Grange Paddocks101461
29.2 cm7 Oct 2003Grange Paddocks77423
27.9 cm15 Oct 2003Briggens Park77967
27.8 cm15 Oct 2003Briggens Park77967
27.2 cm31 Aug 2006Tednambury Mill (Little Hallingbury Mill)101064
26.8 cm7 Oct 2003Grange Paddocks77423

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
Grange Paddocks7 Oct 200319 Aug 202510
Briggens Park15 Oct 200310 Sept 201911
Tednambury Mill (Little Hallingbury Mill)8 Oct 200324 Aug 201614
Eastwick Loop30 Apr 200930 Apr 20091
Sawbridgeworth Loop29 Apr 200929 Apr 20091
Roydon Loop27 Apr 200927 Apr 20091

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

2003–2025

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 3,715 measured fish were spread across different length ranges.

Smallest
2.1 cm
Lower quarter
6.5 cm
Median
9.4 cm
Upper quarter
12.2 cm
Largest
33 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Stort

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

Dace Chub Bullhead Pike Minnow Perch

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 →