Perch · Perca fluviatilis

Perch in the Westleigh Brook

Largest measured perch: 21.7 cm

The largest perch measured in Environment Agency surveys of the Westleigh Brook was 21.7 cm, recorded at Glwe05 on 1 September 2005.

Across 115 measured perch, the median measured length was 10 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 perch records across England →

Most recent observation24 April 2025Glwe05 · 26 fish

Largest measured perch: 21.7 cm
Median length: 10 cm
Fish measured: 115
Survey locations: 1

Individual EA measurements

Largest measured perch

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
21.7 cm	1 Sept 2005	Glwe05	85997
18.5 cm	10 Jun 2019	Glwe05	155653
17.8 cm	6 Jun 2022	Glwe05	161176
17.5 cm	6 Jun 2022	Glwe05	161176
16.9 cm	6 Jun 2022	Glwe05	161176
16.6 cm	24 Apr 2025	Glwe05	177119
16.6 cm	6 Jun 2022	Glwe05	161176
16.2 cm	6 Jun 2022	Glwe05	161176
16 cm	6 Jun 2022	Glwe05	161176
15.6 cm	24 Apr 2025	Glwe05	177119

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where perch were found

Each point marks a survey location with at least one perch 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 perch
Glwe05	15 Jun 1999	24 Apr 2025	6

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

1999–2025

Survey records by year

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

199

000

001

002

003

004

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 115 measured fish were spread across different length ranges.

Smallest: 6.5 cm
Lower quarter: 9.5 cm
Median: 10 cm
Upper quarter: 11.8 cm
Largest: 21.7 cm

0–99 mm

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 Roach

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 →