Perch · Perca fluviatilis

Perch in the River Douglas

Largest measured perch: 25 cm

The largest perch measured in Environment Agency surveys of the River Douglas was 25 cm, recorded at Squirrel Lane on 17 July 2000.

Across 104 measured perch, the median measured length was 9.9 cm.

Surveyors recorded weights for 8 perch. The median was 0.7 oz (0.0185 kg) and the largest recorded weight was 4.2 oz (0.12 kg).

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

See perch records across England →

Most recent observation1 July 2024Appley Bridge · 1 fish

Largest measured perch: 25 cm
Median length: 9.9 cm
Fish measured: 104
Survey locations: 9

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
25 cm	17 Jul 2000	Squirrel Lane	90548
25 cm	24 May 1995	Parbold Hall	113060
21 cm	28 May 1999	Swallows Rise (Star Lane)	114590
20.8 cm	1 Aug 2011	Squirrel Lane	127423
20.5 cm	23 May 1995	Appley Locks	113067
18.8 cm	1 Aug 2011	Squirrel Lane	127423
16.8 cm	21 Jun 2013	Squirrel Lane	136512
16.3 cm	27 Jun 2006	Squirrel Lane	101321
16 cm	17 Jul 2000	Horwich	90544
16 cm	10 May 1999	Squirrel Lane	114589

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
Appley Bridge	14 Aug 1991	1 Jul 2024	6
Squirrel Lane	10 May 1999	21 Jun 2013	8
Coppull Lane	23 Aug 2006	23 Aug 2006	1
Swallows Rise (Star Lane)	28 May 1999	27 Jun 2006	6
Upstream Pincroft Bridge	27 Jun 2001	14 Jul 2003	2
Horwich	17 Jul 2000	4 Jul 2001	2
Robin Park	15 Jun 1995	15 Jun 1995	1
Parbold Hall	24 May 1995	24 May 1995	1
Appley Locks	23 May 1995	23 May 1995	1

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

1991–2024

Survey records by year

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

191

092

093

094

395

096

097

098

299

200

401

102

303

104

105

306

007

008

009

010

111

012

213

114

015

016

017

118

019

020

021

122

023

124

Fish measured by surveyors

Measured length distribution

See how the 104 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 8.9 cm
Median: 9.9 cm
Upper quarter: 11.1 cm
Largest: 25 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 8 perch. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.2 oz (0.005 kg)
Lower quarter: 0.5 oz (0.0138 kg)
Median: 0.7 oz (0.0185 kg)
Upper quarter: 1.6 oz (0.046 kg)
Heaviest: 4.2 oz (0.12 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Douglas

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

Roach Chub Gudgeon Dace European eel Pike

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 →