Roach · Rutilus rutilus

Roach in the Eau

Largest measured roach: 27.5 cm

The largest roach measured in Environment Agency surveys of the Eau was 27.5 cm, recorded at Trent Confluence on 21 April 1998.

Across 394 measured roach, the median measured length was 13.5 cm.

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

See roach records across England →

Most recent observation27 May 2025Scotter · 10 fish

Largest measured roach: 27.5 cm
Median length: 13.5 cm
Fish measured: 394
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
27.5 cm	21 Apr 1998	Trent Confluence	24031
25.3 cm	21 Apr 1998	Trent Confluence	24031
22.4 cm	21 Apr 1998	Trent Confluence	24031
22.1 cm	21 Apr 1998	Trent Confluence	24031
21.8 cm	21 Apr 1998	Trent Confluence	24031
21.7 cm	21 Apr 1998	Trent Confluence	24031
21.6 cm	24 May 2017	Scotter	150429
21.4 cm	23 Jun 2011	Scotter	126631
20.5 cm	23 Jun 2011	Scotter	126631
20.2 cm	21 Apr 1998	Trent Confluence	24031

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
Scotter	23 Jun 2011	27 May 2025	5
Trent Confluence	21 Apr 1998	3 Jun 2009	3

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

1998–2025

Survey records by year

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

198

099

000

001

002

003

004

005

106

007

008

109

010

111

012

013

014

115

016

117

018

119

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 394 measured fish were spread across different length ranges.

Smallest: 3.1 cm
Lower quarter: 8.6 cm
Median: 13.5 cm
Upper quarter: 15.4 cm
Largest: 27.5 cm

0–99 mm

123

100–199 mm

259

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Eau

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

European eel 3-spined stickleback Stone loach Perch Dace 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 →