RiverFish

Perch · Perca fluviatilis

Perch in the River Swilgate

Largest measured perch: 32.5 cm

The largest perch measured in Environment Agency surveys of the River Swilgate was 32.5 cm, recorded at Gander Lane on 20 January 1976.

Across 310 measured perch, the median measured length was 12.5 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 Swilgate.

See perch records across England →

Most recent observation23 August 2024Rails Meadow · 20 fish
Largest measured perch
32.5 cm
Median length
12.5 cm
Fish measured
310
Survey locations
4

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
32.5 cm20 Jan 1976Gander Lane76571
29.4 cm8 Aug 2014D/s of weir (tidal)142144
26.3 cm8 Aug 2014D/s of weir (tidal)142144
24.5 cm10 Oct 2013Rails Meadow139378
24.5 cm20 Jan 1976Gander Lane76571
24.5 cm20 Jan 1976Gander Lane76571
23.8 cm1 Aug 2012D/s of weir (tidal)133208
23 cm1 Aug 2012D/s of weir (tidal)133208
22.6 cm23 Aug 2024Rails Meadow166916
22 cm20 Jan 1976Gander Lane76571

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
Rails Meadow10 Oct 201323 Aug 20246
Prior's Park8 Sept 20168 Sept 20161
D/s of weir (tidal)28 Aug 20028 Aug 20146
Gander Lane20 Jan 197621 Oct 19983

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

1976–2024

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 310 measured fish were spread across different length ranges.

Smallest
5 cm
Lower quarter
10.1 cm
Median
12.5 cm
Upper quarter
15.3 cm
Largest
32.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Swilgate

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

Dace European eel Stone loach Roach 3-spined stickleback 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 →