Roach · Rutilus rutilus

Roach in the River South Dike FMU

Largest measured roach: 26.4 cm

The largest roach measured in Environment Agency surveys of the River South Dike FMU was 26.4 cm, recorded at Church Lane on 2 November 1989.

Across 1,051 measured roach, the median measured length was 10.4 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 South Dike FMU.

See roach records across England →

Most recent observation5 June 1995South Dyke Confluence · 34 fish

Largest measured roach: 26.4 cm
Median length: 10.4 cm
Fish measured: 1,051
Survey locations: 3

Individual EA measurements

Largest measured roach

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

Length	Survey date	Survey location	Survey ID
26.4 cm	2 Nov 1989	Church Lane	57638
25.8 cm	2 Nov 1989	Church Lane	57638
25.6 cm	2 Nov 1989	Church Lane	57638
24.7 cm	2 Nov 1989	Church Lane	57638
24.2 cm	2 Nov 1989	Church Lane	57638
23.5 cm	2 Nov 1989	Church Lane	57638
23.5 cm	2 Nov 1989	Church Lane	57638
23.3 cm	2 Nov 1989	Church Lane	57638
22.8 cm	2 Nov 1989	Church Lane	57638
22.7 cm	2 Nov 1989	Church Lane	57638

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 surveyed	First recorded	Last recorded	Visits finding roach
South Dyke Confluence	3 Jul 1986	5 Jun 1995	3
Church Lane	2 Nov 1989	2 Nov 1989	1
Grange Farm	7 Jul 1986	7 Jul 1986	1

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

1986–1995

Survey records by year

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

286

087

088

189

090

091

192

093

094

195

Fish measured by surveyors

Measured length distribution

See how the 1,051 measured fish were spread across different length ranges.

Smallest: 4.3 cm
Lower quarter: 9.3 cm
Median: 10.4 cm
Upper quarter: 13.2 cm
Largest: 26.4 cm

0–99 mm

403

100–199 mm

611

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River South Dike FMU

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

3-spined stickleback Flounder Rudd Pike Silver 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 →