Roach · Rutilus rutilus

Roach in the Westleigh Brook

Largest measured roach: 22.9 cm

The largest roach measured in Environment Agency surveys of the Westleigh Brook was 22.9 cm, recorded at Glwe05 on 24 April 2025.

Across 219 measured roach, the median measured length was 9.1 cm.

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

See roach records across England →

Most recent observation24 April 2025Glwe05 · 65 fish

Largest measured roach: 22.9 cm
Median length: 9.1 cm
Fish measured: 219
Survey locations: 1

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
22.9 cm	24 Apr 2025	Glwe05	177119
19.8 cm	7 Mar 2011	Glwe05	126053
18.4 cm	6 Jun 2022	Glwe05	161176
17.6 cm	6 Jun 2022	Glwe05	161176
16.8 cm	24 Apr 2025	Glwe05	177119
16.1 cm	24 Apr 2025	Glwe05	177119
16 cm	24 Apr 2025	Glwe05	177119
15.5 cm	7 Mar 2011	Glwe05	126053
15.3 cm	24 Apr 2025	Glwe05	177119
15 cm	24 Apr 2025	Glwe05	177119

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
Glwe05	1 Sept 2005	24 Apr 2025	5

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

2005–2025

Survey records by year

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

105

006

007

008

009

010

111

012

013

014

015

016

017

018

119

020

021

122

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 219 measured fish were spread across different length ranges.

Smallest: 4.5 cm
Lower quarter: 8.3 cm
Median: 9.1 cm
Upper quarter: 11.2 cm
Largest: 22.9 cm

0–99 mm

131

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Westleigh Brook

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

Gudgeon European eel Chub Perch

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 →