RiverFish

Perch · Perca fluviatilis

Perch in the Wraysbury River

Largest measured perch: 32.7 cm

The largest perch measured in Environment Agency surveys of the Wraysbury River was 32.7 cm, recorded at Heathrow Wraysbury River Zone H on 22 October 2019.

Across 180 measured perch, the median measured length was 13.7 cm.

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

See perch records across England →

Most recent observation15 May 2024Harmondsworth Moor · 3 fish
Largest measured perch
32.7 cm
Median length
13.7 cm
Fish measured
180
Survey locations
3

Individual EA measurements

Largest measured perch

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
32.7 cm22 Oct 2019Heathrow Wraysbury River Zone H155852
29 cm22 Oct 2019Heathrow Wraysbury River Zone F155853
28 cm23 Aug 2006Harmondsworth Moor100911
26.9 cm24 Jun 2008Harmondsworth Moor111536
25.3 cm24 Jun 2008Harmondsworth Moor111536
23.5 cm22 Oct 2019Heathrow Wraysbury River Zone H155852
22.8 cm22 Oct 2019Heathrow Wraysbury River Zone F155853
22.8 cm18 Jun 2015Harmondsworth Moor144973
22.7 cm3 Sept 2003Harmondsworth Moor76923
22.6 cm18 Jun 2015Harmondsworth Moor144973

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 surveyedFirst recordedLast recordedVisits finding perch
Harmondsworth Moor3 Sept 200315 May 202415
Heathrow Wraysbury River Zone H22 Oct 201922 Oct 20191
Heathrow Wraysbury River Zone F22 Oct 201922 Oct 20191

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

2003–2024

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 180 measured fish were spread across different length ranges.

Smallest
2.8 cm
Lower quarter
10.4 cm
Median
13.7 cm
Upper quarter
16.6 cm
Largest
32.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Wraysbury River

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

Chub Dace Gudgeon Minnow Bullhead 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 →