Roach · Rutilus rutilus

Roach in the Bourn Brook

Largest measured roach: 32.8 cm

The largest roach measured in Environment Agency surveys of the Bourn Brook was 32.8 cm, recorded at Westfield Farm on 3 February 1997.

Across 117 measured roach, the median measured length was 11.8 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Bourn Brook.

See roach records across England →

Most recent observation30 May 2013Cantelupe Farm Bourn Brook · 1 fish

Largest measured roach: 32.8 cm
Median length: 11.8 cm
Fish measured: 117
Survey locations: 3

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
32.8 cm	3 Feb 1997	Westfield Farm	29330
31.3 cm	18 Apr 1991	Westfield Farm	29324
30.8 cm	3 Nov 1993	Westfield Farm	29327
28.3 cm	3 Nov 1993	Westfield Farm	29327
27.8 cm	3 Nov 1993	Westfield Farm	29327
23.3 cm	3 Nov 1993	Westfield Farm	29327
22.3 cm	3 Feb 1997	Westfield Farm	29330
22.3 cm	18 Apr 1991	Westfield Farm	29324
21.8 cm	18 Apr 1991	Westfield Farm	29324
21.8 cm	18 Apr 1991	Westfield Farm	29324

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
Cantelupe Farm Bourn Brook	22 Apr 1991	30 May 2013	4
Westfield Farm	18 Apr 1991	8 Feb 2005	4
Barton Bridge	4 Nov 1993	4 Nov 1993	1

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

1991–2013

Survey records by year

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

291

092

293

094

095

096

297

098

099

000

001

002

003

004

105

006

007

008

009

110

011

012

113

Fish measured by surveyors

Measured length distribution

See how the 117 measured fish were spread across different length ranges.

Smallest: 2.5 cm
Lower quarter: 7.8 cm
Median: 11.8 cm
Upper quarter: 15.3 cm
Largest: 32.8 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bourn Brook

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

Pike Bullhead Dace Perch Minnow 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 →