Perch · Perca fluviatilis

Perch in the Harpers Brook

Largest measured perch: 26 cm

The largest perch measured in Environment Agency surveys of the Harpers Brook was 26 cm, recorded at Lowick on 6 March 1989.

Across 102 measured perch, the median measured length was 11.7 cm.

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

See perch records across England →

Most recent observation23 October 2018Downstream Islip Gauging Weir · 25 fish

Largest measured perch: 26 cm
Median length: 11.7 cm
Fish measured: 102
Survey locations: 5

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
26 cm	6 Mar 1989	Lowick	54425
25.5 cm	15 Mar 1995	Lowick	54434
24.5 cm	15 Mar 1995	Lowick	54434
24.5 cm	15 Mar 1995	Lowick	54434
24.5 cm	15 Mar 1995	Lowick	54434
22.5 cm	21 Feb 1992	Downstream Islip Gauging Weir	54430
21.5 cm	15 Mar 1995	Lowick	54434
18 cm	21 Feb 1992	Downstream Islip Gauging Weir	54430
17.5 cm	23 Mar 1995	Riffle (Harpers Brook TNR)	54436
17.5 cm	23 Mar 1995	Riffle (Harpers Brook TNR)	54436

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
Downstream Islip Gauging Weir	21 Feb 1992	23 Oct 2018	5
Riffle (Harpers Brook TNR)	23 Mar 1995	23 Mar 1995	1
Lowick	6 Mar 1989	15 Mar 1995	2
Pool 2 (Harpers Brook TNR)	13 Mar 1995	13 Mar 1995	1
Pool 1 (Harpers Brook TNR)	13 Mar 1995	13 Mar 1995	1

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

1989–2018

Survey records by year

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

189

090

091

192

093

094

595

096

097

098

099

100

001

002

003

004

005

106

007

008

009

010

011

012

013

014

015

016

017

118

Fish measured by surveyors

Measured length distribution

See how the 102 measured fish were spread across different length ranges.

Smallest: 6.5 cm
Lower quarter: 8.6 cm
Median: 11.7 cm
Upper quarter: 15 cm
Largest: 26 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 Harpers Brook

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

Minnow Bullhead Chub Dace Stone loach 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 →