Perch · Perca fluviatilis

Perch in the River Swaffham Bulbeck Lode

Largest measured perch: 20.8 cm

The largest perch measured in Environment Agency surveys of the River Swaffham Bulbeck Lode was 20.8 cm, recorded at Lythels Farm on 23 April 1993.

Across 104 measured perch, the median measured length was 7.8 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 Swaffham Bulbeck Lode.

See perch records across England →

Most recent observation28 April 1998Lythels Farm · 3 fish

Largest measured perch: 20.8 cm
Median length: 7.8 cm
Fish measured: 104
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.

Length	Survey date	Survey location	Survey ID
20.8 cm	23 Apr 1993	Lythels Farm	29448
20.3 cm	14 Nov 1991	Lythels Farm	29444
20.3 cm	29 Oct 1987	Lythels Farm	29439
19.3 cm	23 Apr 1993	Lythels Farm	29448
18.8 cm	14 Nov 1991	Lythels Farm	29444
18.8 cm	29 Oct 1987	Lythels Farm	29439
15.3 cm	15 Nov 1991	Swaffham Lock	29445
14.8 cm	29 Oct 1987	Lythels Farm	29439
13.8 cm	14 Nov 1991	Lythels Farm	29444
12.8 cm	29 Oct 1987	Lythels Farm	29439

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
Lythels Farm	20 Sept 1984	28 Apr 1998	6
Slades Farm	18 Sept 1984	14 Apr 1993	3
Cow Bridge	13 Apr 1993	13 Apr 1993	1
Swaffham Lock	15 Nov 1991	15 Nov 1991	1

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

1984–1998

Survey records by year

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

284

085

086

287

088

089

190

291

092

393

094

095

096

097

198

Fish measured by surveyors

Measured length distribution

See how the 104 measured fish were spread across different length ranges.

Smallest: 5.8 cm
Lower quarter: 7.3 cm
Median: 7.8 cm
Upper quarter: 9.9 cm
Largest: 20.8 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 River Swaffham Bulbeck Lode

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

Pike Roach Dace Gudgeon Common bream Bitterling

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 →