RiverFish

Perch · Perca fluviatilis

Perch in the River Eton College

Largest measured perch: 24.7 cm

The largest perch measured in Environment Agency surveys of the River Eton College was 24.7 cm, recorded at Eton Downstream Fry on 24 August 2011.

Across 193 measured perch, the median measured length was 6.5 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 Eton College.

See perch records across England →

Most recent observation4 September 2025Eton Upstream Fry · 4 fish
Largest measured perch
24.7 cm
Median length
6.5 cm
Fish measured
193
Survey locations
2

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
24.7 cm24 Aug 2011Eton Downstream Fry130086
21 cm7 Sept 2006Eton Downstream Fry111903
19.6 cm24 Aug 2011Eton Downstream Fry130086
19.3 cm20 Aug 2008Eton Downstream Fry125700
18.8 cm20 Aug 2008Eton Downstream Fry125700
18.7 cm20 Aug 2008Eton Downstream Fry125700
18.3 cm21 Aug 2007Eton Upstream Fry108614
17.9 cm20 Aug 2008Eton Downstream Fry125700
16.6 cm20 Aug 2008Eton Downstream Fry125700
16.1 cm21 Aug 2007Eton Upstream Fry108614

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
Eton Upstream Fry28 Aug 20034 Sept 202510
Eton Downstream Fry31 Aug 20054 Sept 202514

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

2003–2025

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 193 measured fish were spread across different length ranges.

Smallest
3.7 cm
Lower quarter
5.7 cm
Median
6.5 cm
Upper quarter
8.8 cm
Largest
24.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Eton College

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

Roach Minnow Gudgeon Dace Chub Bleak

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 →