Roach · Rutilus rutilus

Roach in the River Swaffham Bulbeck Lode

Largest measured roach: 29.8 cm

The largest roach measured in Environment Agency surveys of the River Swaffham Bulbeck Lode was 29.8 cm, recorded at Lythels Farm on 29 October 1987.

Across 6,307 measured roach, the median measured length was 10.3 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 roach records across England →

Most recent observation28 April 1998Lythels Farm · 740 fish

Largest measured roach: 29.8 cm
Median length: 10.3 cm
Fish measured: 6,307
Survey locations: 4

Individual EA measurements

Largest measured roach

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
29.8 cm	29 Oct 1987	Lythels Farm	29439
27.8 cm	29 Oct 1987	Lythels Farm	29439
27.3 cm	29 Oct 1987	Lythels Farm	29439
26.8 cm	29 Oct 1987	Lythels Farm	29439
26.8 cm	29 Oct 1987	Lythels Farm	29439
26.3 cm	29 Oct 1987	Lythels Farm	29439
25.3 cm	29 Oct 1987	Lythels Farm	29439
25.3 cm	23 Oct 1987	Slades Farm	29438
24.8 cm	29 Oct 1987	Lythels Farm	29439
24.3 cm	29 Oct 1987	Lythels Farm	29439

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where roach were found

Each point marks a survey location with at least one roach 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 roach
Lythels Farm	20 Sept 1984	28 Apr 1998	7
Cow Bridge	19 Sept 1984	27 May 1997	4
Slades Farm	18 Sept 1984	14 Apr 1993	5
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 roach that year.

384

085

086

387

088

089

390

391

092

293

094

095

096

297

198

Fish measured by surveyors

Measured length distribution

See how the 6,307 measured fish were spread across different length ranges.

Smallest: 3.3 cm
Lower quarter: 8.3 cm
Median: 10.3 cm
Upper quarter: 13.3 cm
Largest: 29.8 cm

0–99 mm

3028

100–199 mm

3189

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 Dace Perch 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 →