RiverFish

Roach · Rutilus rutilus

Roach in the R.Stour special sites

Largest measured roach: 34.5 cm

The largest roach measured in Environment Agency surveys of the R.Stour special sites was 34.5 cm, recorded at u/s Stratford Mill on 12 November 2003.

Across 4,205 measured roach, the median measured length was 13.4 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the R.Stour special sites.

See roach records across England →

Most recent observation25 September 2007(Mill gate) Bower Hall · 136 fish
Largest measured roach
34.5 cm
Median length
13.4 cm
Fish measured
4,205
Survey locations
16

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
34.5 cm12 Nov 2003u/s Stratford Mill79224
33.8 cm12 Nov 2003u/s Stratford Mill79224
33.7 cm31 Aug 2007(Mill gate) Mill Farm Clare106907
33.1 cm17 Nov 2003Langham Flume79226
32.8 cm3 Nov 2003Upstream Flatford lock79218
32 cm12 Nov 2003u/s Stratford Mill79224
31.7 cm29 Aug 2007(Mill gate ) Rat's Castle106893
31.4 cm3 Nov 2003Upstream Flatford lock79218
31.4 cm3 Nov 2003Upstream Flatford lock79218
31.2 cm25 Sept 2007(Mill gate) Bower Hall106951

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
(Mill gate) Bower Hall25 Sept 200725 Sept 20071
(Mill gate) Pentlow Mill4 Sept 20074 Sept 20071
(Mill gate) Mill Farm Clare31 Aug 200731 Aug 20071
(Mill gate ) Rat's Castle29 Aug 200729 Aug 20071
Pike Ditch (upper section)12 Feb 200412 Feb 20041
Pike Ditch (middle section)11 Feb 200411 Feb 20041
Pike Ditch (lower section)11 Feb 200411 Feb 20041
Langham Flume17 Nov 200317 Nov 20031
u/s Stratford Mill12 Nov 200312 Nov 20031
Stratford St Mary - Langham Flume6 Nov 20036 Nov 20031
Upstream Flatford lock3 Nov 20033 Nov 20031
Dedham Mill - Stratford St Mary29 Oct 200329 Oct 20031
Dedham mill pool28 Oct 200328 Oct 20031
Brantham Mill23 Oct 200323 Oct 20031
Judas gap-Flatford mill22 Oct 200322 Oct 20031
Cattawade - Flatford Mill15 Oct 200315 Oct 20031

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

2003–2007

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 4,205 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
10 cm
Median
13.4 cm
Upper quarter
17.8 cm
Largest
34.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the R.Stour special sites

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

Pike Perch Chub European eel Common bream 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 →