Roach · Rutilus rutilus

Roach in the River Cary

Largest measured roach: 23.8 cm

The largest roach measured in Environment Agency surveys of the River Cary was 23.8 cm, recorded at Somerton Door on 1 October 2008.

Across 814 measured roach, the median measured length was 9 cm.

Surveyors recorded weights for 334 roach. The median was 0.5 oz (0.0145 kg) and the largest recorded weight was 6.6 oz (0.187 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 Cary.

See roach records across England →

Most recent observation3 June 2025Somerton Door · 19 fish

Largest measured roach: 23.8 cm
Median length: 9 cm
Fish measured: 814
Survey locations: 5

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
23.8 cm	1 Oct 2008	Somerton Door	115552
21.5 cm	14 Aug 2014	Somerton Door	142245
21.5 cm	28 Jun 2006	Cradle Bridge	99797
21.2 cm	14 Aug 2014	Somerton Door	142245
21.1 cm	14 Aug 2014	Somerton Door	142245
21.1 cm	3 Aug 2006	Somerton Door	101749
21 cm	1 Oct 2008	Somerton Door	115552
21 cm	28 Jun 2006	Cradle Bridge	99797
21 cm	28 Jun 2006	Cradle Bridge	99797
21 cm	28 Jun 2006	Cradle Bridge	99797

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
Somerton Door	3 Aug 2006	3 Jun 2025	8
Cary Bridge	30 Apr 2019	30 Apr 2019	1
D/s Somerton STW	10 Apr 2019	10 Apr 2019	1
Perry's Bridge	11 Oct 2012	14 Sept 2017	2
Cradle Bridge	8 Oct 2003	12 Jul 2017	7

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.

103

104

005

206

207

108

009

010

211

112

013

214

015

016

217

018

319

020

021

122

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 814 measured fish were spread across different length ranges.

Smallest: 2.8 cm
Lower quarter: 7.4 cm
Median: 9 cm
Upper quarter: 13.3 cm
Largest: 23.8 cm

0–99 mm

466

100–199 mm

327

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 334 roach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.3 oz (0.0082 kg)
Median: 0.5 oz (0.0145 kg)
Upper quarter: 1.3 oz (0.0378 kg)
Heaviest: 6.6 oz (0.187 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 Cary

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

3-spined stickleback Minnow Pike Dace European eel 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 →