RiverFish

Perch · Perca fluviatilis

Perch in the River Sunbury - Molesey

Largest measured perch: 41.6 cm

The largest perch measured in Environment Agency surveys of the River Sunbury - Molesey was 41.6 cm, recorded at Downstream Walton Intake on 14 September 2011.

Across 725 measured perch, the median measured length was 14.2 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 Sunbury - Molesey.

See perch records across England →

Most recent observation1 August 2023Sunbury Main Channel · 2 fish
Largest measured perch
41.6 cm
Median length
14.2 cm
Fish measured
725
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.

LengthSurvey dateSurvey locationSurvey ID
41.6 cm14 Sept 2011Downstream Walton Intake128005
39.1 cm15 Sept 2004Sunbury Main Channel82549
33.8 cm13 Sept 2007Sunbury Main Channel116669
33.8 cm13 Sept 2007Upstream Walton Intake106763
31.9 cm15 Sept 2010Downstream Walton Intake124204
31.6 cm13 Sept 2007Sunbury Main Channel116669
31.6 cm13 Sept 2007Upstream Walton Intake106763
28.5 cm15 Sept 2010Downstream Walton Intake124204
28.1 cm15 Sept 2010Downstream Walton Intake124204
28.1 cm16 Sept 2009Downstream Walton Intake119026

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
Sunbury Main Channel1 Sept 19951 Aug 20239
Upstream Walton Intake13 Sept 200510 Sept 20138
Sunbury Weirpool1 Sept 199510 Sept 201312
Downstream Walton Intake13 Sept 200510 Sept 20138
Hampton to Molesey13 Sept 200713 Sept 20071

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

1995–2023

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 725 measured fish were spread across different length ranges.

Smallest
4.8 cm
Lower quarter
9.5 cm
Median
14.2 cm
Upper quarter
17.9 cm
Largest
41.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Sunbury - Molesey

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

Dace Roach Pike Bleak European eel Chub

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 →