Perch · Perca fluviatilis

Perch in the River Calder

Largest measured perch: 15.2 cm

The largest perch measured in Environment Agency surveys of the River Calder was 15.2 cm, recorded at Foxcroft on 16 September 2021.

Across 5 measured perch, the median measured length was 12 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 Calder.

See perch records across England →

Most recent observation17 August 2023Foxcroft · 1 fish

Largest measured perch: 15.2 cm
Median length: 12 cm
Fish measured: 5
Survey locations: 4

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
15.2 cm	16 Sept 2021	Foxcroft	160229
13 cm	6 Jul 1993	Stoneyholme M65 Bridge	114707
12 cm	6 Jul 1993	Stoneyholme M65 Bridge	114707
7.6 cm	11 Jul 2011	Downstream Black Clough	126923
5.8 cm	17 Aug 2023	Foxcroft	162981

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
Foxcroft	16 Sept 2021	17 Aug 2023	2
Downstream Black Clough	11 Jul 2011	11 Jul 2011	1
Townley High School	27 Jul 1999	27 Jul 1999	1
Stoneyholme M65 Bridge	6 Jul 1993	6 Jul 1993	1

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

1993–2023

Survey records by year

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

193

094

095

096

097

098

199

000

001

002

003

004

005

006

007

008

009

010

111

012

013

014

015

016

017

018

019

020

121

022

123

Fish measured by surveyors

Measured length distribution

See how the 5 measured fish were spread across different length ranges.

Smallest: 5.8 cm
Lower quarter: 7.6 cm
Median: 12 cm
Upper quarter: 13 cm
Largest: 15.2 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Calder

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

European eel Brown / sea trout Bullhead Chub Gudgeon 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 →