Roach · Rutilus rutilus

Roach in the River Chertsey - Shepperton

Largest measured roach: 28.6 cm

The largest roach measured in Environment Agency surveys of the River Chertsey - Shepperton was 28.6 cm, recorded at Chertsey Main on 6 September 2013.

Across 690 measured roach, the median measured length was 10.7 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 Chertsey - Shepperton.

See roach records across England →

Most recent observation6 September 2013Chertsey Main · 45 fish

Largest measured roach: 28.6 cm
Median length: 10.7 cm
Fish measured: 690
Survey locations: 2

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
28.6 cm	6 Sept 2013	Chertsey Main	138733
24.4 cm	6 Sept 2013	Chertsey Main	138733
22.7 cm	6 Sept 2013	Chertsey Main	138733
21.2 cm	6 Sept 2013	Chertsey Main	138733
20.7 cm	12 Sept 2011	Chertsey Main	128079
20.3 cm	6 Sept 2013	Chertsey Main	138733
18.7 cm	7 Sept 2012	Chertsey Main	133533
18.7 cm	8 Sept 2005	Chertsey Main	86887
18.3 cm	6 Sept 2013	Chertsey Main	138733
18.3 cm	6 Sept 2013	Chertsey Main	138733

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
Chertsey Main	20 Sept 1995	6 Sept 2013	8
Chertsey Weir Pool	1 Sept 1995	8 Sept 2005	2

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

1995–2013

Survey records by year

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

295

096

097

098

099

100

001

002

003

004

205

006

007

008

109

110

111

112

113

Fish measured by surveyors

Measured length distribution

See how the 690 measured fish were spread across different length ranges.

Smallest: 3.4 cm
Lower quarter: 8.8 cm
Median: 10.7 cm
Upper quarter: 13.1 cm
Largest: 28.6 cm

0–99 mm

278

100–199 mm

406

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Chertsey - Shepperton

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

Bleak Chub European eel Perch Pike 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 →